Anti-crystallisation coating for tunnel drainage system: investigation, experiment, and mechanism
Crystallisation blockage in the tunnel drainage system will reduce the drainage capacity, thereby increasing the risk of lining leakage and cracks, and even endangering the safety of the tunnel structure. To avoid the serious impact of this disease, this study aims to reveal its formation mechanism...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Jiang, Yin [verfasserIn] Zhang, Junyuan [verfasserIn] Ye, Fei [verfasserIn] Tong, Yueping [verfasserIn] Tian, Chongming [verfasserIn] Li, Yongjian [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2023 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Engineering failure analysis - Oxford [u.a.] : Elsevier Science, 1994, 157 |
|---|---|
| Übergeordnetes Werk: |
volume:157 |
| DOI / URN: |
10.1016/j.engfailanal.2023.107903 |
|---|
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ELV066940249 |
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| 520 | |a Crystallisation blockage in the tunnel drainage system will reduce the drainage capacity, thereby increasing the risk of lining leakage and cracks, and even endangering the safety of the tunnel structure. To avoid the serious impact of this disease, this study aims to reveal its formation mechanism and explore the effects and suitability of coating on preventing crystallisation. Therefore, we investigated and quantified the crystallisation blockage within the drainage system of the Nanla tunnel. On this basis, an indoor model test was built to study the anti-crystallisation effect and mechanism of coating. The results indicated that the crystallisation blockage primarily consisted of calcium carbonate mixed with small amounts of sediment and cement hydrates. It is mainly because of the corrosion effect of groundwater on shotcrete. Regarding the inner coating of the drainage ditch, it demonstrated a certain anti-crystallisation effect, with the hydrophobic coating exhibiting the best performance. Moreover, the microscopic results showed that the coating can achieve anti-crystallisation by lubricating the substrate surface and forming an unstable calcium carbonate form. | ||
| 650 | 4 | |a Tunnel engineering | |
| 650 | 4 | |a Drainage system | |
| 650 | 4 | |a Crystallisation blockage | |
| 650 | 4 | |a Indoor test | |
| 650 | 4 | |a Anti-crystallisation coating | |
| 700 | 1 | |a Zhang, Junyuan |e verfasserin |4 aut | |
| 700 | 1 | |a Ye, Fei |e verfasserin |0 (orcid)0000-0002-8375-3010 |4 aut | |
| 700 | 1 | |a Tong, Yueping |e verfasserin |4 aut | |
| 700 | 1 | |a Tian, Chongming |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Yongjian |e verfasserin |4 aut | |
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10.1016/j.engfailanal.2023.107903 doi (DE-627)ELV066940249 (ELSEVIER)S1350-6307(23)00857-9 DE-627 ger DE-627 rda eng 600 VZ 51.32 bkl 50.16 bkl Jiang, Yin verfasserin (orcid)0009-0006-5712-0996 aut Anti-crystallisation coating for tunnel drainage system: investigation, experiment, and mechanism 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Crystallisation blockage in the tunnel drainage system will reduce the drainage capacity, thereby increasing the risk of lining leakage and cracks, and even endangering the safety of the tunnel structure. To avoid the serious impact of this disease, this study aims to reveal its formation mechanism and explore the effects and suitability of coating on preventing crystallisation. Therefore, we investigated and quantified the crystallisation blockage within the drainage system of the Nanla tunnel. On this basis, an indoor model test was built to study the anti-crystallisation effect and mechanism of coating. The results indicated that the crystallisation blockage primarily consisted of calcium carbonate mixed with small amounts of sediment and cement hydrates. It is mainly because of the corrosion effect of groundwater on shotcrete. Regarding the inner coating of the drainage ditch, it demonstrated a certain anti-crystallisation effect, with the hydrophobic coating exhibiting the best performance. Moreover, the microscopic results showed that the coating can achieve anti-crystallisation by lubricating the substrate surface and forming an unstable calcium carbonate form. Tunnel engineering Drainage system Crystallisation blockage Indoor test Anti-crystallisation coating Zhang, Junyuan verfasserin aut Ye, Fei verfasserin (orcid)0000-0002-8375-3010 aut Tong, Yueping verfasserin aut Tian, Chongming verfasserin aut Li, Yongjian verfasserin aut Enthalten in Engineering failure analysis Oxford [u.a.] : Elsevier Science, 1994 157 Online-Ressource (DE-627)320608697 (DE-600)2021082-6 (DE-576)120883619 1350-6307 nnns volume:157 GBV_USEFLAG_U GBV_ELV SYSFLAG_U 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_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 51.32 Werkstoffmechanik VZ 50.16 Technische Zuverlässigkeit Instandhaltung VZ AR 157 |
| spelling |
10.1016/j.engfailanal.2023.107903 doi (DE-627)ELV066940249 (ELSEVIER)S1350-6307(23)00857-9 DE-627 ger DE-627 rda eng 600 VZ 51.32 bkl 50.16 bkl Jiang, Yin verfasserin (orcid)0009-0006-5712-0996 aut Anti-crystallisation coating for tunnel drainage system: investigation, experiment, and mechanism 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Crystallisation blockage in the tunnel drainage system will reduce the drainage capacity, thereby increasing the risk of lining leakage and cracks, and even endangering the safety of the tunnel structure. To avoid the serious impact of this disease, this study aims to reveal its formation mechanism and explore the effects and suitability of coating on preventing crystallisation. Therefore, we investigated and quantified the crystallisation blockage within the drainage system of the Nanla tunnel. On this basis, an indoor model test was built to study the anti-crystallisation effect and mechanism of coating. The results indicated that the crystallisation blockage primarily consisted of calcium carbonate mixed with small amounts of sediment and cement hydrates. It is mainly because of the corrosion effect of groundwater on shotcrete. Regarding the inner coating of the drainage ditch, it demonstrated a certain anti-crystallisation effect, with the hydrophobic coating exhibiting the best performance. Moreover, the microscopic results showed that the coating can achieve anti-crystallisation by lubricating the substrate surface and forming an unstable calcium carbonate form. Tunnel engineering Drainage system Crystallisation blockage Indoor test Anti-crystallisation coating Zhang, Junyuan verfasserin aut Ye, Fei verfasserin (orcid)0000-0002-8375-3010 aut Tong, Yueping verfasserin aut Tian, Chongming verfasserin aut Li, Yongjian verfasserin aut Enthalten in Engineering failure analysis Oxford [u.a.] : Elsevier Science, 1994 157 Online-Ressource (DE-627)320608697 (DE-600)2021082-6 (DE-576)120883619 1350-6307 nnns volume:157 GBV_USEFLAG_U GBV_ELV SYSFLAG_U 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_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 51.32 Werkstoffmechanik VZ 50.16 Technische Zuverlässigkeit Instandhaltung VZ AR 157 |
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10.1016/j.engfailanal.2023.107903 doi (DE-627)ELV066940249 (ELSEVIER)S1350-6307(23)00857-9 DE-627 ger DE-627 rda eng 600 VZ 51.32 bkl 50.16 bkl Jiang, Yin verfasserin (orcid)0009-0006-5712-0996 aut Anti-crystallisation coating for tunnel drainage system: investigation, experiment, and mechanism 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Crystallisation blockage in the tunnel drainage system will reduce the drainage capacity, thereby increasing the risk of lining leakage and cracks, and even endangering the safety of the tunnel structure. To avoid the serious impact of this disease, this study aims to reveal its formation mechanism and explore the effects and suitability of coating on preventing crystallisation. Therefore, we investigated and quantified the crystallisation blockage within the drainage system of the Nanla tunnel. On this basis, an indoor model test was built to study the anti-crystallisation effect and mechanism of coating. The results indicated that the crystallisation blockage primarily consisted of calcium carbonate mixed with small amounts of sediment and cement hydrates. It is mainly because of the corrosion effect of groundwater on shotcrete. Regarding the inner coating of the drainage ditch, it demonstrated a certain anti-crystallisation effect, with the hydrophobic coating exhibiting the best performance. Moreover, the microscopic results showed that the coating can achieve anti-crystallisation by lubricating the substrate surface and forming an unstable calcium carbonate form. Tunnel engineering Drainage system Crystallisation blockage Indoor test Anti-crystallisation coating Zhang, Junyuan verfasserin aut Ye, Fei verfasserin (orcid)0000-0002-8375-3010 aut Tong, Yueping verfasserin aut Tian, Chongming verfasserin aut Li, Yongjian verfasserin aut Enthalten in Engineering failure analysis Oxford [u.a.] : Elsevier Science, 1994 157 Online-Ressource (DE-627)320608697 (DE-600)2021082-6 (DE-576)120883619 1350-6307 nnns volume:157 GBV_USEFLAG_U GBV_ELV SYSFLAG_U 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_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 51.32 Werkstoffmechanik VZ 50.16 Technische Zuverlässigkeit Instandhaltung VZ AR 157 |
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10.1016/j.engfailanal.2023.107903 doi (DE-627)ELV066940249 (ELSEVIER)S1350-6307(23)00857-9 DE-627 ger DE-627 rda eng 600 VZ 51.32 bkl 50.16 bkl Jiang, Yin verfasserin (orcid)0009-0006-5712-0996 aut Anti-crystallisation coating for tunnel drainage system: investigation, experiment, and mechanism 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Crystallisation blockage in the tunnel drainage system will reduce the drainage capacity, thereby increasing the risk of lining leakage and cracks, and even endangering the safety of the tunnel structure. To avoid the serious impact of this disease, this study aims to reveal its formation mechanism and explore the effects and suitability of coating on preventing crystallisation. Therefore, we investigated and quantified the crystallisation blockage within the drainage system of the Nanla tunnel. On this basis, an indoor model test was built to study the anti-crystallisation effect and mechanism of coating. The results indicated that the crystallisation blockage primarily consisted of calcium carbonate mixed with small amounts of sediment and cement hydrates. It is mainly because of the corrosion effect of groundwater on shotcrete. Regarding the inner coating of the drainage ditch, it demonstrated a certain anti-crystallisation effect, with the hydrophobic coating exhibiting the best performance. Moreover, the microscopic results showed that the coating can achieve anti-crystallisation by lubricating the substrate surface and forming an unstable calcium carbonate form. Tunnel engineering Drainage system Crystallisation blockage Indoor test Anti-crystallisation coating Zhang, Junyuan verfasserin aut Ye, Fei verfasserin (orcid)0000-0002-8375-3010 aut Tong, Yueping verfasserin aut Tian, Chongming verfasserin aut Li, Yongjian verfasserin aut Enthalten in Engineering failure analysis Oxford [u.a.] : Elsevier Science, 1994 157 Online-Ressource (DE-627)320608697 (DE-600)2021082-6 (DE-576)120883619 1350-6307 nnns volume:157 GBV_USEFLAG_U GBV_ELV SYSFLAG_U 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_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 51.32 Werkstoffmechanik VZ 50.16 Technische Zuverlässigkeit Instandhaltung VZ AR 157 |
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10.1016/j.engfailanal.2023.107903 doi (DE-627)ELV066940249 (ELSEVIER)S1350-6307(23)00857-9 DE-627 ger DE-627 rda eng 600 VZ 51.32 bkl 50.16 bkl Jiang, Yin verfasserin (orcid)0009-0006-5712-0996 aut Anti-crystallisation coating for tunnel drainage system: investigation, experiment, and mechanism 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Crystallisation blockage in the tunnel drainage system will reduce the drainage capacity, thereby increasing the risk of lining leakage and cracks, and even endangering the safety of the tunnel structure. To avoid the serious impact of this disease, this study aims to reveal its formation mechanism and explore the effects and suitability of coating on preventing crystallisation. Therefore, we investigated and quantified the crystallisation blockage within the drainage system of the Nanla tunnel. On this basis, an indoor model test was built to study the anti-crystallisation effect and mechanism of coating. The results indicated that the crystallisation blockage primarily consisted of calcium carbonate mixed with small amounts of sediment and cement hydrates. It is mainly because of the corrosion effect of groundwater on shotcrete. Regarding the inner coating of the drainage ditch, it demonstrated a certain anti-crystallisation effect, with the hydrophobic coating exhibiting the best performance. Moreover, the microscopic results showed that the coating can achieve anti-crystallisation by lubricating the substrate surface and forming an unstable calcium carbonate form. Tunnel engineering Drainage system Crystallisation blockage Indoor test Anti-crystallisation coating Zhang, Junyuan verfasserin aut Ye, Fei verfasserin (orcid)0000-0002-8375-3010 aut Tong, Yueping verfasserin aut Tian, Chongming verfasserin aut Li, Yongjian verfasserin aut Enthalten in Engineering failure analysis Oxford [u.a.] : Elsevier Science, 1994 157 Online-Ressource (DE-627)320608697 (DE-600)2021082-6 (DE-576)120883619 1350-6307 nnns volume:157 GBV_USEFLAG_U GBV_ELV SYSFLAG_U 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_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 51.32 Werkstoffmechanik VZ 50.16 Technische Zuverlässigkeit Instandhaltung VZ AR 157 |
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600 VZ 51.32 bkl 50.16 bkl Anti-crystallisation coating for tunnel drainage system: investigation, experiment, and mechanism Tunnel engineering Drainage system Crystallisation blockage Indoor test Anti-crystallisation coating |
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anti-crystallisation coating for tunnel drainage system: investigation, experiment, and mechanism |
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Anti-crystallisation coating for tunnel drainage system: investigation, experiment, and mechanism |
| abstract |
Crystallisation blockage in the tunnel drainage system will reduce the drainage capacity, thereby increasing the risk of lining leakage and cracks, and even endangering the safety of the tunnel structure. To avoid the serious impact of this disease, this study aims to reveal its formation mechanism and explore the effects and suitability of coating on preventing crystallisation. Therefore, we investigated and quantified the crystallisation blockage within the drainage system of the Nanla tunnel. On this basis, an indoor model test was built to study the anti-crystallisation effect and mechanism of coating. The results indicated that the crystallisation blockage primarily consisted of calcium carbonate mixed with small amounts of sediment and cement hydrates. It is mainly because of the corrosion effect of groundwater on shotcrete. Regarding the inner coating of the drainage ditch, it demonstrated a certain anti-crystallisation effect, with the hydrophobic coating exhibiting the best performance. Moreover, the microscopic results showed that the coating can achieve anti-crystallisation by lubricating the substrate surface and forming an unstable calcium carbonate form. |
| abstractGer |
Crystallisation blockage in the tunnel drainage system will reduce the drainage capacity, thereby increasing the risk of lining leakage and cracks, and even endangering the safety of the tunnel structure. To avoid the serious impact of this disease, this study aims to reveal its formation mechanism and explore the effects and suitability of coating on preventing crystallisation. Therefore, we investigated and quantified the crystallisation blockage within the drainage system of the Nanla tunnel. On this basis, an indoor model test was built to study the anti-crystallisation effect and mechanism of coating. The results indicated that the crystallisation blockage primarily consisted of calcium carbonate mixed with small amounts of sediment and cement hydrates. It is mainly because of the corrosion effect of groundwater on shotcrete. Regarding the inner coating of the drainage ditch, it demonstrated a certain anti-crystallisation effect, with the hydrophobic coating exhibiting the best performance. Moreover, the microscopic results showed that the coating can achieve anti-crystallisation by lubricating the substrate surface and forming an unstable calcium carbonate form. |
| abstract_unstemmed |
Crystallisation blockage in the tunnel drainage system will reduce the drainage capacity, thereby increasing the risk of lining leakage and cracks, and even endangering the safety of the tunnel structure. To avoid the serious impact of this disease, this study aims to reveal its formation mechanism and explore the effects and suitability of coating on preventing crystallisation. Therefore, we investigated and quantified the crystallisation blockage within the drainage system of the Nanla tunnel. On this basis, an indoor model test was built to study the anti-crystallisation effect and mechanism of coating. The results indicated that the crystallisation blockage primarily consisted of calcium carbonate mixed with small amounts of sediment and cement hydrates. It is mainly because of the corrosion effect of groundwater on shotcrete. Regarding the inner coating of the drainage ditch, it demonstrated a certain anti-crystallisation effect, with the hydrophobic coating exhibiting the best performance. Moreover, the microscopic results showed that the coating can achieve anti-crystallisation by lubricating the substrate surface and forming an unstable calcium carbonate form. |
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