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Model test and numerical simulation of a new prefabricated double-row piles retaining system in silty clay ground

文献类型：期刊论文

作者Wang, Ruisong1; Yang, Hao2; Ni, Pengpeng1; Zhao, Chenyang1,6,7; Guo, Chengchao1,3,8; Ma, Huihuan1; Dong, Pu4; Liang, Huqing5; Tang, Mengxiong5
刊名UNDERGROUND SPACE
出版日期2023-12-01
卷号13页码:262-280
关键词Prefabricated recyclable structure Double-row piles retaining system Physical model test Numerical simulation Deformation foundation pit engineering (Clough & amp O'Rourke 1990
ISSN号2096-2754
DOI10.1016/j.undsp.2023.05.004
英文摘要This paper introduces a new prefabricated recyclable double-row piles retaining system for excavations in silty clay ground. Labora-tory model test and numerical simulation are conducted to study the system behavior upon excavation. The horizontal displacement (dh), Von Mises stress (rM), strain (e), ground surface settlement (dv), and earth pressure are systematically investigated. Furthermore, the monitoring data of 13 excavation cases supported by double-row piles retaining system are presented and discussed. The experimental results can basically match the numerical results, and the maximum rM, maximum bending moment (Mmax), maximum horizontal dis-placement (dhm) of structural members are all less than the tolerance limits. The ground surface settlement model of double-row piles retaining system consists of three zones, i.e., rebound influence zone, primary influence zone and secondary influence zone. The dhm val-ues are 0.07%-1.42% of the excavation depth (He). The maximum ground surface settlement (dvm) is generally less than dhm. The ratio of dvm=dhm varies between 0.09 and 0.76, with an average value of 0.5. The observed earth pressure on the retained side of front pile (paf) is about 0.53-0.57 cH below the excavation surface. Above the excavation surface, paf decreases dramatically when getting closer to the ground surface.
资助项目National Key Research and Development Program of China[2021YFC3100803] ; National Natural Science Foundation of China[52208380] ; National Natural Science Foundation of China[52078506] ; Guangdong Basic and Applied Basic Research Foundation, China[2023A1515012159] ; Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[SKLGME021022] ; Science and Technology Program of Guangzhou Municipal Construction Group Co., Ltd., China[2022-KJ004]
WOS研究方向Engineering
语种英语
WOS记录号WOS:001037534700001
出版者KEAI PUBLISHING LTD
源URL[http://119.78.100.198/handle/2S6PX9GI/39044]  
专题中科院武汉岩土力学所
通讯作者Zhao, Chenyang; Guo, Chengchao
作者单位1.Sun Yat Sen Univ, Guangdong Res Ctr Underground Space Exploitat Tech, Sch Civil Engn, Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519082, Peoples R China
2.Beijing Urban Rail Transit Construct Engn Co Ltd, Beijing 100088, Peoples R China
3.BeSTDR Infrastuct Hosp, Zhumadian 463400, Peoples R China
4.Huizhou Univ, Sch Architecture & Civil Engn, Huizhou 516008, Peoples R China
5.Guangzhou Municipal Construct Grp Co Ltd, Guangzhou 510275, Peoples R China
6.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China
7.Sun Yat Sen Univ, Sch Civil Engn, Southern Marine Sci & Engn Guangdong Lab, Zhuhai 519082, Peoples R China
8.Guangdong Res Ctr Underground Space Exploitat Tech, Guangdong Key Lab Ocean Civil Engn, Zhuhai 519082, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Ruisong,Yang, Hao,Ni, Pengpeng,et al. Model test and numerical simulation of a new prefabricated double-row piles retaining system in silty clay ground[J]. UNDERGROUND SPACE,2023,13:262-280.
APA Wang, Ruisong.,Yang, Hao.,Ni, Pengpeng.,Zhao, Chenyang.,Guo, Chengchao.,...&Tang, Mengxiong.(2023).Model test and numerical simulation of a new prefabricated double-row piles retaining system in silty clay ground.UNDERGROUND SPACE,13,262-280.
MLA Wang, Ruisong,et al."Model test and numerical simulation of a new prefabricated double-row piles retaining system in silty clay ground".UNDERGROUND SPACE 13(2023):262-280.

入库方式： OAI收割

来源：武汉岩土力学研究所

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