Seepage behavior and mechanical properties of two kinds of polyurethane/water glass in combined grouting experiment

Combined grouting with multiple materials can effectively block flowing water that cannot be blocked by conventional grouting methods. Firstly, foam grouting is used to reduce the fluidity of water, and then reinforcement grouting is employed to improve the grouting effect. The traditional cement gr...
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Gespeichert in:

Autor*in:	Wang, Pengcheng [verfasserIn] Li, Shuchen [verfasserIn] Li, Jinglong [verfasserIn] Zhou, Huiying [verfasserIn] Ma, Pengfei [verfasserIn] Tian, Ye [verfasserIn] Yuan, Chao [verfasserIn] Feng, Xianda [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Schlagwörter:	Combined grouting Polyurethane/water glass Grouting pressure Seepage behavior Mechanical behavior Interaction mechanism

Übergeordnetes Werk:	Enthalten in: Tunnelling and underground space technology - Amsterdam [u.a.] : Elsevier Science, 1986, 136
Übergeordnetes Werk:	volume:136

DOI / URN:	10.1016/j.tust.2023.105092

Katalog-ID:	ELV009505822

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245	1	0	\|a Seepage behavior and mechanical properties of two kinds of polyurethane/water glass in combined grouting experiment
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520			\|a Combined grouting with multiple materials can effectively block flowing water that cannot be blocked by conventional grouting methods. Firstly, foam grouting is used to reduce the fluidity of water, and then reinforcement grouting is employed to improve the grouting effect. The traditional cement grout cannot achieve the required foamability, setting rate, and injectability. Therefore, two kinds of polyurethane/water glass grouts have been used in combined grouting experiments. In this study, we combine foam and reinforcement polyurethane/water glass to examine the interaction performance of grout seepage. We develop a visible grouting facility, including a transparent chamber and a grouting pump. We monitor the grouting pressure during the test and use a charge-coupled device camera to capture the diffusion of both grouts in the granular media. After solidification of the grouts, the samples were cored and tested to obtain the uniaxial compressive strength (UCS), porosity, and density. Our results demonstrate that the reinforcement grouting pressure increased, as compared with the foam grouting pressure, because the foam grouting blocked water and pressure conduction. The reinforcement grout intruded into the foam grout, and the UCS was improved. The higher the grouting pressure at the corresponding location of the samples, the larger the total filling ratio. The larger the volume percentage of RPU/WG, the smaller the volume percentage of FPU/WG, the greater the strength and the greater the density of the samples. The empirical strength-equivalent porosity equation is also provided in this paper. We suggest that foam grouting shall be carried out outside the stress-bearing area first, and then reinforcement grouting shall be carried out inside the stress-bearing area. This study provides a reference for the theoretical development and field application of combined grouting.
650		4	\|a Combined grouting
650		4	\|a Polyurethane/water glass
650		4	\|a Grouting pressure
650		4	\|a Seepage behavior
650		4	\|a Mechanical behavior
650		4	\|a Interaction mechanism
700	1		\|a Li, Shuchen \|e verfasserin \|4 aut
700	1		\|a Li, Jinglong \|e verfasserin \|4 aut
700	1		\|a Zhou, Huiying \|e verfasserin \|4 aut
700	1		\|a Ma, Pengfei \|e verfasserin \|4 aut
700	1		\|a Tian, Ye \|e verfasserin \|4 aut
700	1		\|a Yuan, Chao \|e verfasserin \|4 aut
700	1		\|a Feng, Xianda \|e verfasserin \|4 aut
773	0	8	\|i Enthalten in \|t Tunnelling and underground space technology \|d Amsterdam [u.a.] : Elsevier Science, 1986 \|g 136 \|h Online-Ressource \|w (DE-627)320620808 \|w (DE-600)2022637-8 \|w (DE-576)259485365 \|x 1878-4364 \|7 nnns
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936	b	k	\|a 56.22 \|j Unterirdisches Bauen \|j Tunnelbau
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allfields	10.1016/j.tust.2023.105092 doi (DE-627)ELV009505822 (ELSEVIER)S0886-7798(23)00112-8 DE-627 ger DE-627 rda eng 690 DE-600 56.22 bkl Wang, Pengcheng verfasserin aut Seepage behavior and mechanical properties of two kinds of polyurethane/water glass in combined grouting experiment 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Combined grouting with multiple materials can effectively block flowing water that cannot be blocked by conventional grouting methods. Firstly, foam grouting is used to reduce the fluidity of water, and then reinforcement grouting is employed to improve the grouting effect. The traditional cement grout cannot achieve the required foamability, setting rate, and injectability. Therefore, two kinds of polyurethane/water glass grouts have been used in combined grouting experiments. In this study, we combine foam and reinforcement polyurethane/water glass to examine the interaction performance of grout seepage. We develop a visible grouting facility, including a transparent chamber and a grouting pump. We monitor the grouting pressure during the test and use a charge-coupled device camera to capture the diffusion of both grouts in the granular media. After solidification of the grouts, the samples were cored and tested to obtain the uniaxial compressive strength (UCS), porosity, and density. Our results demonstrate that the reinforcement grouting pressure increased, as compared with the foam grouting pressure, because the foam grouting blocked water and pressure conduction. The reinforcement grout intruded into the foam grout, and the UCS was improved. The higher the grouting pressure at the corresponding location of the samples, the larger the total filling ratio. The larger the volume percentage of RPU/WG, the smaller the volume percentage of FPU/WG, the greater the strength and the greater the density of the samples. The empirical strength-equivalent porosity equation is also provided in this paper. We suggest that foam grouting shall be carried out outside the stress-bearing area first, and then reinforcement grouting shall be carried out inside the stress-bearing area. This study provides a reference for the theoretical development and field application of combined grouting. Combined grouting Polyurethane/water glass Grouting pressure Seepage behavior Mechanical behavior Interaction mechanism Li, Shuchen verfasserin aut Li, Jinglong verfasserin aut Zhou, Huiying verfasserin aut Ma, Pengfei verfasserin aut Tian, Ye verfasserin aut Yuan, Chao verfasserin aut Feng, Xianda verfasserin aut Enthalten in Tunnelling and underground space technology Amsterdam [u.a.] : Elsevier Science, 1986 136 Online-Ressource (DE-627)320620808 (DE-600)2022637-8 (DE-576)259485365 1878-4364 nnns volume:136 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 56.22 Unterirdisches Bauen Tunnelbau AR 136
spelling	10.1016/j.tust.2023.105092 doi (DE-627)ELV009505822 (ELSEVIER)S0886-7798(23)00112-8 DE-627 ger DE-627 rda eng 690 DE-600 56.22 bkl Wang, Pengcheng verfasserin aut Seepage behavior and mechanical properties of two kinds of polyurethane/water glass in combined grouting experiment 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Combined grouting with multiple materials can effectively block flowing water that cannot be blocked by conventional grouting methods. Firstly, foam grouting is used to reduce the fluidity of water, and then reinforcement grouting is employed to improve the grouting effect. The traditional cement grout cannot achieve the required foamability, setting rate, and injectability. Therefore, two kinds of polyurethane/water glass grouts have been used in combined grouting experiments. In this study, we combine foam and reinforcement polyurethane/water glass to examine the interaction performance of grout seepage. We develop a visible grouting facility, including a transparent chamber and a grouting pump. We monitor the grouting pressure during the test and use a charge-coupled device camera to capture the diffusion of both grouts in the granular media. After solidification of the grouts, the samples were cored and tested to obtain the uniaxial compressive strength (UCS), porosity, and density. Our results demonstrate that the reinforcement grouting pressure increased, as compared with the foam grouting pressure, because the foam grouting blocked water and pressure conduction. The reinforcement grout intruded into the foam grout, and the UCS was improved. The higher the grouting pressure at the corresponding location of the samples, the larger the total filling ratio. The larger the volume percentage of RPU/WG, the smaller the volume percentage of FPU/WG, the greater the strength and the greater the density of the samples. The empirical strength-equivalent porosity equation is also provided in this paper. We suggest that foam grouting shall be carried out outside the stress-bearing area first, and then reinforcement grouting shall be carried out inside the stress-bearing area. This study provides a reference for the theoretical development and field application of combined grouting. Combined grouting Polyurethane/water glass Grouting pressure Seepage behavior Mechanical behavior Interaction mechanism Li, Shuchen verfasserin aut Li, Jinglong verfasserin aut Zhou, Huiying verfasserin aut Ma, Pengfei verfasserin aut Tian, Ye verfasserin aut Yuan, Chao verfasserin aut Feng, Xianda verfasserin aut Enthalten in Tunnelling and underground space technology Amsterdam [u.a.] : Elsevier Science, 1986 136 Online-Ressource (DE-627)320620808 (DE-600)2022637-8 (DE-576)259485365 1878-4364 nnns volume:136 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 56.22 Unterirdisches Bauen Tunnelbau AR 136
allfields_unstemmed	10.1016/j.tust.2023.105092 doi (DE-627)ELV009505822 (ELSEVIER)S0886-7798(23)00112-8 DE-627 ger DE-627 rda eng 690 DE-600 56.22 bkl Wang, Pengcheng verfasserin aut Seepage behavior and mechanical properties of two kinds of polyurethane/water glass in combined grouting experiment 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Combined grouting with multiple materials can effectively block flowing water that cannot be blocked by conventional grouting methods. Firstly, foam grouting is used to reduce the fluidity of water, and then reinforcement grouting is employed to improve the grouting effect. The traditional cement grout cannot achieve the required foamability, setting rate, and injectability. Therefore, two kinds of polyurethane/water glass grouts have been used in combined grouting experiments. In this study, we combine foam and reinforcement polyurethane/water glass to examine the interaction performance of grout seepage. We develop a visible grouting facility, including a transparent chamber and a grouting pump. We monitor the grouting pressure during the test and use a charge-coupled device camera to capture the diffusion of both grouts in the granular media. After solidification of the grouts, the samples were cored and tested to obtain the uniaxial compressive strength (UCS), porosity, and density. Our results demonstrate that the reinforcement grouting pressure increased, as compared with the foam grouting pressure, because the foam grouting blocked water and pressure conduction. The reinforcement grout intruded into the foam grout, and the UCS was improved. The higher the grouting pressure at the corresponding location of the samples, the larger the total filling ratio. The larger the volume percentage of RPU/WG, the smaller the volume percentage of FPU/WG, the greater the strength and the greater the density of the samples. The empirical strength-equivalent porosity equation is also provided in this paper. We suggest that foam grouting shall be carried out outside the stress-bearing area first, and then reinforcement grouting shall be carried out inside the stress-bearing area. This study provides a reference for the theoretical development and field application of combined grouting. Combined grouting Polyurethane/water glass Grouting pressure Seepage behavior Mechanical behavior Interaction mechanism Li, Shuchen verfasserin aut Li, Jinglong verfasserin aut Zhou, Huiying verfasserin aut Ma, Pengfei verfasserin aut Tian, Ye verfasserin aut Yuan, Chao verfasserin aut Feng, Xianda verfasserin aut Enthalten in Tunnelling and underground space technology Amsterdam [u.a.] : Elsevier Science, 1986 136 Online-Ressource (DE-627)320620808 (DE-600)2022637-8 (DE-576)259485365 1878-4364 nnns volume:136 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 56.22 Unterirdisches Bauen Tunnelbau AR 136
allfieldsGer	10.1016/j.tust.2023.105092 doi (DE-627)ELV009505822 (ELSEVIER)S0886-7798(23)00112-8 DE-627 ger DE-627 rda eng 690 DE-600 56.22 bkl Wang, Pengcheng verfasserin aut Seepage behavior and mechanical properties of two kinds of polyurethane/water glass in combined grouting experiment 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Combined grouting with multiple materials can effectively block flowing water that cannot be blocked by conventional grouting methods. Firstly, foam grouting is used to reduce the fluidity of water, and then reinforcement grouting is employed to improve the grouting effect. The traditional cement grout cannot achieve the required foamability, setting rate, and injectability. Therefore, two kinds of polyurethane/water glass grouts have been used in combined grouting experiments. In this study, we combine foam and reinforcement polyurethane/water glass to examine the interaction performance of grout seepage. We develop a visible grouting facility, including a transparent chamber and a grouting pump. We monitor the grouting pressure during the test and use a charge-coupled device camera to capture the diffusion of both grouts in the granular media. After solidification of the grouts, the samples were cored and tested to obtain the uniaxial compressive strength (UCS), porosity, and density. Our results demonstrate that the reinforcement grouting pressure increased, as compared with the foam grouting pressure, because the foam grouting blocked water and pressure conduction. The reinforcement grout intruded into the foam grout, and the UCS was improved. The higher the grouting pressure at the corresponding location of the samples, the larger the total filling ratio. The larger the volume percentage of RPU/WG, the smaller the volume percentage of FPU/WG, the greater the strength and the greater the density of the samples. The empirical strength-equivalent porosity equation is also provided in this paper. We suggest that foam grouting shall be carried out outside the stress-bearing area first, and then reinforcement grouting shall be carried out inside the stress-bearing area. This study provides a reference for the theoretical development and field application of combined grouting. Combined grouting Polyurethane/water glass Grouting pressure Seepage behavior Mechanical behavior Interaction mechanism Li, Shuchen verfasserin aut Li, Jinglong verfasserin aut Zhou, Huiying verfasserin aut Ma, Pengfei verfasserin aut Tian, Ye verfasserin aut Yuan, Chao verfasserin aut Feng, Xianda verfasserin aut Enthalten in Tunnelling and underground space technology Amsterdam [u.a.] : Elsevier Science, 1986 136 Online-Ressource (DE-627)320620808 (DE-600)2022637-8 (DE-576)259485365 1878-4364 nnns volume:136 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 56.22 Unterirdisches Bauen Tunnelbau AR 136
allfieldsSound	10.1016/j.tust.2023.105092 doi (DE-627)ELV009505822 (ELSEVIER)S0886-7798(23)00112-8 DE-627 ger DE-627 rda eng 690 DE-600 56.22 bkl Wang, Pengcheng verfasserin aut Seepage behavior and mechanical properties of two kinds of polyurethane/water glass in combined grouting experiment 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Combined grouting with multiple materials can effectively block flowing water that cannot be blocked by conventional grouting methods. Firstly, foam grouting is used to reduce the fluidity of water, and then reinforcement grouting is employed to improve the grouting effect. The traditional cement grout cannot achieve the required foamability, setting rate, and injectability. Therefore, two kinds of polyurethane/water glass grouts have been used in combined grouting experiments. In this study, we combine foam and reinforcement polyurethane/water glass to examine the interaction performance of grout seepage. We develop a visible grouting facility, including a transparent chamber and a grouting pump. We monitor the grouting pressure during the test and use a charge-coupled device camera to capture the diffusion of both grouts in the granular media. After solidification of the grouts, the samples were cored and tested to obtain the uniaxial compressive strength (UCS), porosity, and density. Our results demonstrate that the reinforcement grouting pressure increased, as compared with the foam grouting pressure, because the foam grouting blocked water and pressure conduction. The reinforcement grout intruded into the foam grout, and the UCS was improved. The higher the grouting pressure at the corresponding location of the samples, the larger the total filling ratio. The larger the volume percentage of RPU/WG, the smaller the volume percentage of FPU/WG, the greater the strength and the greater the density of the samples. The empirical strength-equivalent porosity equation is also provided in this paper. We suggest that foam grouting shall be carried out outside the stress-bearing area first, and then reinforcement grouting shall be carried out inside the stress-bearing area. This study provides a reference for the theoretical development and field application of combined grouting. Combined grouting Polyurethane/water glass Grouting pressure Seepage behavior Mechanical behavior Interaction mechanism Li, Shuchen verfasserin aut Li, Jinglong verfasserin aut Zhou, Huiying verfasserin aut Ma, Pengfei verfasserin aut Tian, Ye verfasserin aut Yuan, Chao verfasserin aut Feng, Xianda verfasserin aut Enthalten in Tunnelling and underground space technology Amsterdam [u.a.] : Elsevier Science, 1986 136 Online-Ressource (DE-627)320620808 (DE-600)2022637-8 (DE-576)259485365 1878-4364 nnns volume:136 GBV_USEFLAG_U SYSFLAG_U GBV_ELV GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 56.22 Unterirdisches Bauen Tunnelbau AR 136
language	English
source	Enthalten in Tunnelling and underground space technology 136 volume:136
sourceStr	Enthalten in Tunnelling and underground space technology 136 volume:136
format_phy_str_mv	Article
bklname	Unterirdisches Bauen Tunnelbau
institution	findex.gbv.de
topic_facet	Combined grouting Polyurethane/water glass Grouting pressure Seepage behavior Mechanical behavior Interaction mechanism
dewey-raw	690
isfreeaccess_bool	false
container_title	Tunnelling and underground space technology
authorswithroles_txt_mv	Wang, Pengcheng @@aut@@ Li, Shuchen @@aut@@ Li, Jinglong @@aut@@ Zhou, Huiying @@aut@@ Ma, Pengfei @@aut@@ Tian, Ye @@aut@@ Yuan, Chao @@aut@@ Feng, Xianda @@aut@@
publishDateDaySort_date	2023-01-01T00:00:00Z
hierarchy_top_id	320620808
dewey-sort	3690
id	ELV009505822
language_de	englisch
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author	Wang, Pengcheng
spellingShingle	Wang, Pengcheng ddc 690 bkl 56.22 misc Combined grouting misc Polyurethane/water glass misc Grouting pressure misc Seepage behavior misc Mechanical behavior misc Interaction mechanism Seepage behavior and mechanical properties of two kinds of polyurethane/water glass in combined grouting experiment
authorStr	Wang, Pengcheng
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topic_title	690 DE-600 56.22 bkl Seepage behavior and mechanical properties of two kinds of polyurethane/water glass in combined grouting experiment Combined grouting Polyurethane/water glass Grouting pressure Seepage behavior Mechanical behavior Interaction mechanism
topic	ddc 690 bkl 56.22 misc Combined grouting misc Polyurethane/water glass misc Grouting pressure misc Seepage behavior misc Mechanical behavior misc Interaction mechanism
topic_unstemmed	ddc 690 bkl 56.22 misc Combined grouting misc Polyurethane/water glass misc Grouting pressure misc Seepage behavior misc Mechanical behavior misc Interaction mechanism
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title	Seepage behavior and mechanical properties of two kinds of polyurethane/water glass in combined grouting experiment
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title_full	Seepage behavior and mechanical properties of two kinds of polyurethane/water glass in combined grouting experiment
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author_browse	Wang, Pengcheng Li, Shuchen Li, Jinglong Zhou, Huiying Ma, Pengfei Tian, Ye Yuan, Chao Feng, Xianda
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title_sort	seepage behavior and mechanical properties of two kinds of polyurethane/water glass in combined grouting experiment
title_auth	Seepage behavior and mechanical properties of two kinds of polyurethane/water glass in combined grouting experiment
abstract	Combined grouting with multiple materials can effectively block flowing water that cannot be blocked by conventional grouting methods. Firstly, foam grouting is used to reduce the fluidity of water, and then reinforcement grouting is employed to improve the grouting effect. The traditional cement grout cannot achieve the required foamability, setting rate, and injectability. Therefore, two kinds of polyurethane/water glass grouts have been used in combined grouting experiments. In this study, we combine foam and reinforcement polyurethane/water glass to examine the interaction performance of grout seepage. We develop a visible grouting facility, including a transparent chamber and a grouting pump. We monitor the grouting pressure during the test and use a charge-coupled device camera to capture the diffusion of both grouts in the granular media. After solidification of the grouts, the samples were cored and tested to obtain the uniaxial compressive strength (UCS), porosity, and density. Our results demonstrate that the reinforcement grouting pressure increased, as compared with the foam grouting pressure, because the foam grouting blocked water and pressure conduction. The reinforcement grout intruded into the foam grout, and the UCS was improved. The higher the grouting pressure at the corresponding location of the samples, the larger the total filling ratio. The larger the volume percentage of RPU/WG, the smaller the volume percentage of FPU/WG, the greater the strength and the greater the density of the samples. The empirical strength-equivalent porosity equation is also provided in this paper. We suggest that foam grouting shall be carried out outside the stress-bearing area first, and then reinforcement grouting shall be carried out inside the stress-bearing area. This study provides a reference for the theoretical development and field application of combined grouting.
abstractGer	Combined grouting with multiple materials can effectively block flowing water that cannot be blocked by conventional grouting methods. Firstly, foam grouting is used to reduce the fluidity of water, and then reinforcement grouting is employed to improve the grouting effect. The traditional cement grout cannot achieve the required foamability, setting rate, and injectability. Therefore, two kinds of polyurethane/water glass grouts have been used in combined grouting experiments. In this study, we combine foam and reinforcement polyurethane/water glass to examine the interaction performance of grout seepage. We develop a visible grouting facility, including a transparent chamber and a grouting pump. We monitor the grouting pressure during the test and use a charge-coupled device camera to capture the diffusion of both grouts in the granular media. After solidification of the grouts, the samples were cored and tested to obtain the uniaxial compressive strength (UCS), porosity, and density. Our results demonstrate that the reinforcement grouting pressure increased, as compared with the foam grouting pressure, because the foam grouting blocked water and pressure conduction. The reinforcement grout intruded into the foam grout, and the UCS was improved. The higher the grouting pressure at the corresponding location of the samples, the larger the total filling ratio. The larger the volume percentage of RPU/WG, the smaller the volume percentage of FPU/WG, the greater the strength and the greater the density of the samples. The empirical strength-equivalent porosity equation is also provided in this paper. We suggest that foam grouting shall be carried out outside the stress-bearing area first, and then reinforcement grouting shall be carried out inside the stress-bearing area. This study provides a reference for the theoretical development and field application of combined grouting.
abstract_unstemmed	Combined grouting with multiple materials can effectively block flowing water that cannot be blocked by conventional grouting methods. Firstly, foam grouting is used to reduce the fluidity of water, and then reinforcement grouting is employed to improve the grouting effect. The traditional cement grout cannot achieve the required foamability, setting rate, and injectability. Therefore, two kinds of polyurethane/water glass grouts have been used in combined grouting experiments. In this study, we combine foam and reinforcement polyurethane/water glass to examine the interaction performance of grout seepage. We develop a visible grouting facility, including a transparent chamber and a grouting pump. We monitor the grouting pressure during the test and use a charge-coupled device camera to capture the diffusion of both grouts in the granular media. After solidification of the grouts, the samples were cored and tested to obtain the uniaxial compressive strength (UCS), porosity, and density. Our results demonstrate that the reinforcement grouting pressure increased, as compared with the foam grouting pressure, because the foam grouting blocked water and pressure conduction. The reinforcement grout intruded into the foam grout, and the UCS was improved. The higher the grouting pressure at the corresponding location of the samples, the larger the total filling ratio. The larger the volume percentage of RPU/WG, the smaller the volume percentage of FPU/WG, the greater the strength and the greater the density of the samples. The empirical strength-equivalent porosity equation is also provided in this paper. We suggest that foam grouting shall be carried out outside the stress-bearing area first, and then reinforcement grouting shall be carried out inside the stress-bearing area. This study provides a reference for the theoretical development and field application of combined grouting.
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title_short	Seepage behavior and mechanical properties of two kinds of polyurethane/water glass in combined grouting experiment
remote_bool	true
author2	Li, Shuchen Li, Jinglong Zhou, Huiying Ma, Pengfei Tian, Ye Yuan, Chao Feng, Xianda
author2Str	Li, Shuchen Li, Jinglong Zhou, Huiying Ma, Pengfei Tian, Ye Yuan, Chao Feng, Xianda
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doi_str	10.1016/j.tust.2023.105092
up_date	2024-07-06T23:23:46.096Z
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Firstly, foam grouting is used to reduce the fluidity of water, and then reinforcement grouting is employed to improve the grouting effect. The traditional cement grout cannot achieve the required foamability, setting rate, and injectability. Therefore, two kinds of polyurethane/water glass grouts have been used in combined grouting experiments. In this study, we combine foam and reinforcement polyurethane/water glass to examine the interaction performance of grout seepage. We develop a visible grouting facility, including a transparent chamber and a grouting pump. We monitor the grouting pressure during the test and use a charge-coupled device camera to capture the diffusion of both grouts in the granular media. After solidification of the grouts, the samples were cored and tested to obtain the uniaxial compressive strength (UCS), porosity, and density. Our results demonstrate that the reinforcement grouting pressure increased, as compared with the foam grouting pressure, because the foam grouting blocked water and pressure conduction. The reinforcement grout intruded into the foam grout, and the UCS was improved. The higher the grouting pressure at the corresponding location of the samples, the larger the total filling ratio. The larger the volume percentage of RPU/WG, the smaller the volume percentage of FPU/WG, the greater the strength and the greater the density of the samples. The empirical strength-equivalent porosity equation is also provided in this paper. We suggest that foam grouting shall be carried out outside the stress-bearing area first, and then reinforcement grouting shall be carried out inside the stress-bearing area. 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Seepage behavior and mechanical properties of two kinds of polyurethane/water glass in combined grouting experiment

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