[1]巴清林,刘 鑫,牛紫娟,等.粉砂土地中地下连续墙对深基坑支护相互作用机理分析[J].华南地震,2026,46(05):78-87.[doi:10.13512/j.hndz.2026.05.10]
　BA Qinglin,LIU Xin,NIU Zijuan,et al.Analysis of Interaction Mechanism Between Underground Diaphragm Wall and Deep Foundation Pit Support in Silty Sand Soil[J].,2026,46(05):78-87.[doi:10.13512/j.hndz.2026.05.10]
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粉砂土地中地下连续墙对深基坑支护相互作用机理分析()

华南地震[ISSN:1006-6977/CN:61-1281/TN]

卷:
46
期数:
2026年05期
页码:
78-87
栏目:
土木工程防震减灾
出版日期:
2026-09-07

文章信息/Info

Title:
Analysis of Interaction Mechanism Between Underground Diaphragm Wall and Deep Foundation Pit Support in Silty Sand Soil
文章编号:
1001-8662（2026）05-0078-10
作者:
巴清林1; 刘 鑫2; 牛紫娟3; 冯 永3; 魏怀鹏4; 刘元元4
1.河南省郸城县水利局，河南 周口 477150;2.郸城县中州供水有限公司，河南 郸城 477150;3.河南工业大学，郑州 450001;4.河南水利与环境职业学院，郑州 450008
Author(s):
BA Qinglin1; LIU Xin2; NIU Zijuan3; FENG Yong3; WEI Huaipeng4; LIU Yuanyuan4
1.Water Resources Bureau of Dancheng County, Zhoukou 477150, China;2.Dancheng County Zhongzhou Water Supply Co., Ltd., Dancheng 477150, China;3.Henan University of Technology, Zhengzhou 450001, China;4.Henan Vocational College of Water Conservancy and Environment, Zhengzhou 450008, China
关键词:
粉砂土地; 地下连续墙; 深基坑支护; 土的本构关系; 数值模拟
Keywords:
Silty sand soil;  Underground diaphragm wall;  Deep foundation pit support;  Constitutive relation of soil; Numerical simulation
分类号:
TU476
DOI:
10.13512/j.hndz.2026.05.10
文献标志码:
A
摘要:
以粉砂土地中深基坑实例为依托，通过参考颗粒破碎的粉砂土三维本构模型，建立三维有限元计算模型，模拟土体开挖过程，对比分析数值模拟与现场监测数据，得到深基坑开挖过程中土体位移、基坑底部位移、地表沉降、基坑应力、地下连续墙变形规律。研究结果表明：深基坑开挖结束后坑底隆起为弹性隆起，最大隆起量为23.4mm，地表沉降先沿着远离基坑方向不断增加，达到峰值11.34mm后再不断减小，直至为零。模拟值与实测值规律基本一致，验证了数值模拟的准确性，证明土的本构模型选择和模拟参数选择的合理性。通过改变地下连续墙厚度及埋深参数，优化施工方案，为类似粉砂土地中深基坑支护方式提供参考。
Abstract:
A three-dimensional finite element calculation model was created using the three-dimensional constitu‐tive model considering particle crushing of silty soil to simulate the soil excavation process using the example of a medium-deep foundation pit in silty soil. Field monitoring data and numerical simulation results were compared and analyzed to determine the evolution laws of soil displacement, foundation pit bottom displacement, surface settle‐ment, foundation pit stress, and underground diaphragm wall deformation law during the deep foundation pit excava‐tion process. The outcomes demonstrate that the bottom uplift, which occurs following the completion of deep foun‐dation pit excavation, is elastic and has a maximum uplift value of 23.4 mm. Surface settlement initially rises in the direction away from the foundation pit, peaks at 11.34 mm, and then falls until it approaches zero. The simulated values are essentially in agreement with the measured values, proving the accuracy of numerical simulation and the rationality of the selected soil constitutive model and simulation parameters. The constrution scheme is optimized by varying the parameters of the underground diaphragm wall thickness and burial depth, and this serves as a reference for the support design of similar middle-deep foundation pits in silty soil.

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相似文献/References:

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备注/Memo

备注/Memo:
收稿日期：2026-04-21
基金项目：河南省2022年水利科技攻关项目计划（GG2022064）；教育部高等学校科学研究发展中心专项（ZJXF2022254）联合资助。
作者简介：巴清林（1973-），男，高级工程师，主要从事岩土技术研究。E-mail: zkbql@163.com
更新日期/Last Update: 2026-09-20