Interaction Mechanisms of Synchronously Performed Adjacent Excavations
An adjacent excavation model based on the hardening soil-small strain (HSS) constitutive model was established by using the numerical method, which was compared with the single excavation model and the adjacent excavation model without considering the wall-soil friction. The stress deformation chara...
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| Autor*in: |
YANG Qirun, LI Mingguang, CHEN Jinjian, WU Hang [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Chinesisch |
| Erschienen: |
2022 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
In: Shanghai Jiaotong Daxue xuebao - Editorial Office of Journal of Shanghai Jiao Tong University, 2021, 56(2022), 6, Seite 722-729 |
|---|---|
| Übergeordnetes Werk: |
volume:56 ; year:2022 ; number:6 ; pages:722-729 |
| Links: |
|---|
| DOI / URN: |
10.16183/j.cnki.jsjtu.2021.149 |
|---|
| Katalog-ID: |
DOAJ043277667 |
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| 520 | |a An adjacent excavation model based on the hardening soil-small strain (HSS) constitutive model was established by using the numerical method, which was compared with the single excavation model and the adjacent excavation model without considering the wall-soil friction. The stress deformation characteristics of adjacent excavation implemented simultaneously were obtained, and the interaction mechanism of adjacent excavations were revealed. The results show that two kinds of arching effects exist in the confined soil. One is the arching effect caused by uneven deformation of walls, and the other is the arching effect caused by the wall-soil friction, both of which affect the lateral earth pressure acting on the retaining walls. With the decrease of the excavation spacing, the former is weakened, resulting in the weakening of the transfer of lateral earth pressure between the soil near the excavation face to bracing soil, while the latter is enhanced, leading to the decrease of magnitude of the lateral earth pressure acting on adjacent retaining walls. Under the action of the arching effects, the curve of lateral earth pressure develops from an R-shaped distribution to a linear distribution and then returns to an R-shaped distribution with the decrease of the spacing. The maximum horizontal displacement of non-adjacent walls increases, and the maximum horizontal displacement of adjacent walls increases primarily and then decreases. | ||
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10.16183/j.cnki.jsjtu.2021.149 doi (DE-627)DOAJ043277667 (DE-599)DOAJe0144adb348a42caa4c1d6ab4507961d DE-627 ger DE-627 rakwb chi TA1-2040 TP155-156 VM1-989 YANG Qirun, LI Mingguang, CHEN Jinjian, WU Hang verfasserin aut Interaction Mechanisms of Synchronously Performed Adjacent Excavations 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier An adjacent excavation model based on the hardening soil-small strain (HSS) constitutive model was established by using the numerical method, which was compared with the single excavation model and the adjacent excavation model without considering the wall-soil friction. The stress deformation characteristics of adjacent excavation implemented simultaneously were obtained, and the interaction mechanism of adjacent excavations were revealed. The results show that two kinds of arching effects exist in the confined soil. One is the arching effect caused by uneven deformation of walls, and the other is the arching effect caused by the wall-soil friction, both of which affect the lateral earth pressure acting on the retaining walls. With the decrease of the excavation spacing, the former is weakened, resulting in the weakening of the transfer of lateral earth pressure between the soil near the excavation face to bracing soil, while the latter is enhanced, leading to the decrease of magnitude of the lateral earth pressure acting on adjacent retaining walls. Under the action of the arching effects, the curve of lateral earth pressure develops from an R-shaped distribution to a linear distribution and then returns to an R-shaped distribution with the decrease of the spacing. The maximum horizontal displacement of non-adjacent walls increases, and the maximum horizontal displacement of adjacent walls increases primarily and then decreases. adjacent excavations arching effect earth pressure wall deformation Engineering (General). Civil engineering (General) Chemical engineering Naval architecture. Shipbuilding. Marine engineering In Shanghai Jiaotong Daxue xuebao Editorial Office of Journal of Shanghai Jiao Tong University, 2021 56(2022), 6, Seite 722-729 (DE-627)1680950819 10062467 nnns volume:56 year:2022 number:6 pages:722-729 https://doi.org/10.16183/j.cnki.jsjtu.2021.149 kostenfrei https://doaj.org/article/e0144adb348a42caa4c1d6ab4507961d kostenfrei http://xuebao.sjtu.edu.cn/article/2022/1006-2467/1006-2467-56-6-722.shtml kostenfrei https://doaj.org/toc/1006-2467 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_2817 AR 56 2022 6 722-729 |
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10.16183/j.cnki.jsjtu.2021.149 doi (DE-627)DOAJ043277667 (DE-599)DOAJe0144adb348a42caa4c1d6ab4507961d DE-627 ger DE-627 rakwb chi TA1-2040 TP155-156 VM1-989 YANG Qirun, LI Mingguang, CHEN Jinjian, WU Hang verfasserin aut Interaction Mechanisms of Synchronously Performed Adjacent Excavations 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier An adjacent excavation model based on the hardening soil-small strain (HSS) constitutive model was established by using the numerical method, which was compared with the single excavation model and the adjacent excavation model without considering the wall-soil friction. The stress deformation characteristics of adjacent excavation implemented simultaneously were obtained, and the interaction mechanism of adjacent excavations were revealed. The results show that two kinds of arching effects exist in the confined soil. One is the arching effect caused by uneven deformation of walls, and the other is the arching effect caused by the wall-soil friction, both of which affect the lateral earth pressure acting on the retaining walls. With the decrease of the excavation spacing, the former is weakened, resulting in the weakening of the transfer of lateral earth pressure between the soil near the excavation face to bracing soil, while the latter is enhanced, leading to the decrease of magnitude of the lateral earth pressure acting on adjacent retaining walls. Under the action of the arching effects, the curve of lateral earth pressure develops from an R-shaped distribution to a linear distribution and then returns to an R-shaped distribution with the decrease of the spacing. The maximum horizontal displacement of non-adjacent walls increases, and the maximum horizontal displacement of adjacent walls increases primarily and then decreases. adjacent excavations arching effect earth pressure wall deformation Engineering (General). Civil engineering (General) Chemical engineering Naval architecture. Shipbuilding. Marine engineering In Shanghai Jiaotong Daxue xuebao Editorial Office of Journal of Shanghai Jiao Tong University, 2021 56(2022), 6, Seite 722-729 (DE-627)1680950819 10062467 nnns volume:56 year:2022 number:6 pages:722-729 https://doi.org/10.16183/j.cnki.jsjtu.2021.149 kostenfrei https://doaj.org/article/e0144adb348a42caa4c1d6ab4507961d kostenfrei http://xuebao.sjtu.edu.cn/article/2022/1006-2467/1006-2467-56-6-722.shtml kostenfrei https://doaj.org/toc/1006-2467 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_2817 AR 56 2022 6 722-729 |
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10.16183/j.cnki.jsjtu.2021.149 doi (DE-627)DOAJ043277667 (DE-599)DOAJe0144adb348a42caa4c1d6ab4507961d DE-627 ger DE-627 rakwb chi TA1-2040 TP155-156 VM1-989 YANG Qirun, LI Mingguang, CHEN Jinjian, WU Hang verfasserin aut Interaction Mechanisms of Synchronously Performed Adjacent Excavations 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier An adjacent excavation model based on the hardening soil-small strain (HSS) constitutive model was established by using the numerical method, which was compared with the single excavation model and the adjacent excavation model without considering the wall-soil friction. The stress deformation characteristics of adjacent excavation implemented simultaneously were obtained, and the interaction mechanism of adjacent excavations were revealed. The results show that two kinds of arching effects exist in the confined soil. One is the arching effect caused by uneven deformation of walls, and the other is the arching effect caused by the wall-soil friction, both of which affect the lateral earth pressure acting on the retaining walls. With the decrease of the excavation spacing, the former is weakened, resulting in the weakening of the transfer of lateral earth pressure between the soil near the excavation face to bracing soil, while the latter is enhanced, leading to the decrease of magnitude of the lateral earth pressure acting on adjacent retaining walls. Under the action of the arching effects, the curve of lateral earth pressure develops from an R-shaped distribution to a linear distribution and then returns to an R-shaped distribution with the decrease of the spacing. The maximum horizontal displacement of non-adjacent walls increases, and the maximum horizontal displacement of adjacent walls increases primarily and then decreases. adjacent excavations arching effect earth pressure wall deformation Engineering (General). Civil engineering (General) Chemical engineering Naval architecture. Shipbuilding. Marine engineering In Shanghai Jiaotong Daxue xuebao Editorial Office of Journal of Shanghai Jiao Tong University, 2021 56(2022), 6, Seite 722-729 (DE-627)1680950819 10062467 nnns volume:56 year:2022 number:6 pages:722-729 https://doi.org/10.16183/j.cnki.jsjtu.2021.149 kostenfrei https://doaj.org/article/e0144adb348a42caa4c1d6ab4507961d kostenfrei http://xuebao.sjtu.edu.cn/article/2022/1006-2467/1006-2467-56-6-722.shtml kostenfrei https://doaj.org/toc/1006-2467 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_2817 AR 56 2022 6 722-729 |
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10.16183/j.cnki.jsjtu.2021.149 doi (DE-627)DOAJ043277667 (DE-599)DOAJe0144adb348a42caa4c1d6ab4507961d DE-627 ger DE-627 rakwb chi TA1-2040 TP155-156 VM1-989 YANG Qirun, LI Mingguang, CHEN Jinjian, WU Hang verfasserin aut Interaction Mechanisms of Synchronously Performed Adjacent Excavations 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier An adjacent excavation model based on the hardening soil-small strain (HSS) constitutive model was established by using the numerical method, which was compared with the single excavation model and the adjacent excavation model without considering the wall-soil friction. The stress deformation characteristics of adjacent excavation implemented simultaneously were obtained, and the interaction mechanism of adjacent excavations were revealed. The results show that two kinds of arching effects exist in the confined soil. One is the arching effect caused by uneven deformation of walls, and the other is the arching effect caused by the wall-soil friction, both of which affect the lateral earth pressure acting on the retaining walls. With the decrease of the excavation spacing, the former is weakened, resulting in the weakening of the transfer of lateral earth pressure between the soil near the excavation face to bracing soil, while the latter is enhanced, leading to the decrease of magnitude of the lateral earth pressure acting on adjacent retaining walls. Under the action of the arching effects, the curve of lateral earth pressure develops from an R-shaped distribution to a linear distribution and then returns to an R-shaped distribution with the decrease of the spacing. The maximum horizontal displacement of non-adjacent walls increases, and the maximum horizontal displacement of adjacent walls increases primarily and then decreases. adjacent excavations arching effect earth pressure wall deformation Engineering (General). Civil engineering (General) Chemical engineering Naval architecture. Shipbuilding. Marine engineering In Shanghai Jiaotong Daxue xuebao Editorial Office of Journal of Shanghai Jiao Tong University, 2021 56(2022), 6, Seite 722-729 (DE-627)1680950819 10062467 nnns volume:56 year:2022 number:6 pages:722-729 https://doi.org/10.16183/j.cnki.jsjtu.2021.149 kostenfrei https://doaj.org/article/e0144adb348a42caa4c1d6ab4507961d kostenfrei http://xuebao.sjtu.edu.cn/article/2022/1006-2467/1006-2467-56-6-722.shtml kostenfrei https://doaj.org/toc/1006-2467 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_2817 AR 56 2022 6 722-729 |
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Interaction Mechanisms of Synchronously Performed Adjacent Excavations |
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Interaction Mechanisms of Synchronously Performed Adjacent Excavations |
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YANG Qirun, LI Mingguang, CHEN Jinjian, WU Hang |
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Shanghai Jiaotong Daxue xuebao |
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YANG Qirun, LI Mingguang, CHEN Jinjian, WU Hang |
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YANG Qirun, LI Mingguang, CHEN Jinjian, WU Hang |
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10.16183/j.cnki.jsjtu.2021.149 |
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interaction mechanisms of synchronously performed adjacent excavations |
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TA1-2040 |
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Interaction Mechanisms of Synchronously Performed Adjacent Excavations |
| abstract |
An adjacent excavation model based on the hardening soil-small strain (HSS) constitutive model was established by using the numerical method, which was compared with the single excavation model and the adjacent excavation model without considering the wall-soil friction. The stress deformation characteristics of adjacent excavation implemented simultaneously were obtained, and the interaction mechanism of adjacent excavations were revealed. The results show that two kinds of arching effects exist in the confined soil. One is the arching effect caused by uneven deformation of walls, and the other is the arching effect caused by the wall-soil friction, both of which affect the lateral earth pressure acting on the retaining walls. With the decrease of the excavation spacing, the former is weakened, resulting in the weakening of the transfer of lateral earth pressure between the soil near the excavation face to bracing soil, while the latter is enhanced, leading to the decrease of magnitude of the lateral earth pressure acting on adjacent retaining walls. Under the action of the arching effects, the curve of lateral earth pressure develops from an R-shaped distribution to a linear distribution and then returns to an R-shaped distribution with the decrease of the spacing. The maximum horizontal displacement of non-adjacent walls increases, and the maximum horizontal displacement of adjacent walls increases primarily and then decreases. |
| abstractGer |
An adjacent excavation model based on the hardening soil-small strain (HSS) constitutive model was established by using the numerical method, which was compared with the single excavation model and the adjacent excavation model without considering the wall-soil friction. The stress deformation characteristics of adjacent excavation implemented simultaneously were obtained, and the interaction mechanism of adjacent excavations were revealed. The results show that two kinds of arching effects exist in the confined soil. One is the arching effect caused by uneven deformation of walls, and the other is the arching effect caused by the wall-soil friction, both of which affect the lateral earth pressure acting on the retaining walls. With the decrease of the excavation spacing, the former is weakened, resulting in the weakening of the transfer of lateral earth pressure between the soil near the excavation face to bracing soil, while the latter is enhanced, leading to the decrease of magnitude of the lateral earth pressure acting on adjacent retaining walls. Under the action of the arching effects, the curve of lateral earth pressure develops from an R-shaped distribution to a linear distribution and then returns to an R-shaped distribution with the decrease of the spacing. The maximum horizontal displacement of non-adjacent walls increases, and the maximum horizontal displacement of adjacent walls increases primarily and then decreases. |
| abstract_unstemmed |
An adjacent excavation model based on the hardening soil-small strain (HSS) constitutive model was established by using the numerical method, which was compared with the single excavation model and the adjacent excavation model without considering the wall-soil friction. The stress deformation characteristics of adjacent excavation implemented simultaneously were obtained, and the interaction mechanism of adjacent excavations were revealed. The results show that two kinds of arching effects exist in the confined soil. One is the arching effect caused by uneven deformation of walls, and the other is the arching effect caused by the wall-soil friction, both of which affect the lateral earth pressure acting on the retaining walls. With the decrease of the excavation spacing, the former is weakened, resulting in the weakening of the transfer of lateral earth pressure between the soil near the excavation face to bracing soil, while the latter is enhanced, leading to the decrease of magnitude of the lateral earth pressure acting on adjacent retaining walls. Under the action of the arching effects, the curve of lateral earth pressure develops from an R-shaped distribution to a linear distribution and then returns to an R-shaped distribution with the decrease of the spacing. The maximum horizontal displacement of non-adjacent walls increases, and the maximum horizontal displacement of adjacent walls increases primarily and then decreases. |
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Interaction Mechanisms of Synchronously Performed Adjacent Excavations |
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https://doi.org/10.16183/j.cnki.jsjtu.2021.149 https://doaj.org/article/e0144adb348a42caa4c1d6ab4507961d http://xuebao.sjtu.edu.cn/article/2022/1006-2467/1006-2467-56-6-722.shtml https://doaj.org/toc/1006-2467 |
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