Analysis Method for Ground Settlement Induced by Ultra-Deep Excavation in Hangzhou Soft Clay Considering Time-Space Effect
The PLAXIS 3D software and the soft soil creep model were used to establish a 3D numerical model of the B2 excavation within an ultra-deep excavation group, allowing for analysis of the effects of time-space factors on ground settlements. Then, the complementary error function and trilinear model we...
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Editorial Office of Journal of Shanghai Jiao Tong University
2025-01-01
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| Series: | Shanghai Jiaotong Daxue xuebao |
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| Online Access: | https://xuebao.sjtu.edu.cn/article/2025/1006-2467/1006-2467-59-1-48.shtml |
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| author | XIONG Yifan, YING Hongwei, ZHANG Jinhong, CHENG Kang, LI Binghe |
| author_facet | XIONG Yifan, YING Hongwei, ZHANG Jinhong, CHENG Kang, LI Binghe |
| author_sort | XIONG Yifan, YING Hongwei, ZHANG Jinhong, CHENG Kang, LI Binghe |
| collection | DOAJ |
| description | The PLAXIS 3D software and the soft soil creep model were used to establish a 3D numerical model of the B2 excavation within an ultra-deep excavation group, allowing for analysis of the effects of time-space factors on ground settlements. Then, the complementary error function and trilinear model were introduced. After that, the numerical results were used to correct the complementary error function. Finally, a rapid approach was proposed for predicting ground settlements while accounting for the temporal and spatial influences. The results indicate that soft soil creep not only causes additional wall deflections resulting in soil settlements but also induces soil settlements independent of these deflections. The impact of ignoring soft soil creep on prediction of ground settlement is not weaker than that of wall deflections. The excavation area determines the construction duration when the excavation depth and rate are identical, impacting ground settlements induced by soft soil creep. |
| format | Article |
| id | doaj-art-1fa9a5f4733f476783616a4884b83a3a |
| institution | Kabale University |
| issn | 1006-2467 |
| language | zho |
| publishDate | 2025-01-01 |
| publisher | Editorial Office of Journal of Shanghai Jiao Tong University |
| record_format | Article |
| series | Shanghai Jiaotong Daxue xuebao |
| spelling | doaj-art-1fa9a5f4733f476783616a4884b83a3a2025-02-06T09:45:28ZzhoEditorial Office of Journal of Shanghai Jiao Tong UniversityShanghai Jiaotong Daxue xuebao1006-24672025-01-01591485910.16183/j.cnki.jsjtu.2023.199Analysis Method for Ground Settlement Induced by Ultra-Deep Excavation in Hangzhou Soft Clay Considering Time-Space EffectXIONG Yifan, YING Hongwei, ZHANG Jinhong, CHENG Kang, LI Binghe01. Key Laboratory of the Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, Nanjing 210098, China;2. Research Center of Coastal and Urban Geotechnical Engineering, Zhejiang University, Hangzhou 310058, China;3. Zhejiang Province Institute of Architectural Design and Research, Hangzhou 310006, China;4. China Railway 11th Bureau Group Co., Ltd., Wuhan 430061, ChinaThe PLAXIS 3D software and the soft soil creep model were used to establish a 3D numerical model of the B2 excavation within an ultra-deep excavation group, allowing for analysis of the effects of time-space factors on ground settlements. Then, the complementary error function and trilinear model were introduced. After that, the numerical results were used to correct the complementary error function. Finally, a rapid approach was proposed for predicting ground settlements while accounting for the temporal and spatial influences. The results indicate that soft soil creep not only causes additional wall deflections resulting in soil settlements but also induces soil settlements independent of these deflections. The impact of ignoring soft soil creep on prediction of ground settlement is not weaker than that of wall deflections. The excavation area determines the construction duration when the excavation depth and rate are identical, impacting ground settlements induced by soft soil creep.https://xuebao.sjtu.edu.cn/article/2025/1006-2467/1006-2467-59-1-48.shtmlsoft clayultra-deep excavationground settlementtime-space effectcomplementary error function |
| spellingShingle | XIONG Yifan, YING Hongwei, ZHANG Jinhong, CHENG Kang, LI Binghe Analysis Method for Ground Settlement Induced by Ultra-Deep Excavation in Hangzhou Soft Clay Considering Time-Space Effect Shanghai Jiaotong Daxue xuebao soft clay ultra-deep excavation ground settlement time-space effect complementary error function |
| title | Analysis Method for Ground Settlement Induced by Ultra-Deep Excavation in Hangzhou Soft Clay Considering Time-Space Effect |
| title_full | Analysis Method for Ground Settlement Induced by Ultra-Deep Excavation in Hangzhou Soft Clay Considering Time-Space Effect |
| title_fullStr | Analysis Method for Ground Settlement Induced by Ultra-Deep Excavation in Hangzhou Soft Clay Considering Time-Space Effect |
| title_full_unstemmed | Analysis Method for Ground Settlement Induced by Ultra-Deep Excavation in Hangzhou Soft Clay Considering Time-Space Effect |
| title_short | Analysis Method for Ground Settlement Induced by Ultra-Deep Excavation in Hangzhou Soft Clay Considering Time-Space Effect |
| title_sort | analysis method for ground settlement induced by ultra deep excavation in hangzhou soft clay considering time space effect |
| topic | soft clay ultra-deep excavation ground settlement time-space effect complementary error function |
| url | https://xuebao.sjtu.edu.cn/article/2025/1006-2467/1006-2467-59-1-48.shtml |
| work_keys_str_mv | AT xiongyifanyinghongweizhangjinhongchengkanglibinghe analysismethodforgroundsettlementinducedbyultradeepexcavationinhangzhousoftclayconsideringtimespaceeffect |