[1]鹿梅,孙运存.基于HSS模型的排涝泵站深基坑施工过程受力变形分析[J].江苏水利,2026,(03):40-46.
　LU Mei,SUN Yuncun.Analysis of stress and deformation of deep foundation pit construction for drainage pump station based on HSS model[J].JIANGSU WATER RESOURCES,2026,(03):40-46.
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基于HSS模型的排涝泵站深基坑施工过程受力变形分析()

《江苏水利》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2026年03期
页码:
40-46
栏目:
水利工程建设
出版日期:
2026-03-01

文章信息/Info

Title:
Analysis of stress and deformation of deep foundation pit construction for drainage pump station based on HSS model
文章编号:
1007-7839（2026）03-0040-0007
作者:
鹿梅1; 孙运存2
（1.徐州市水利工程运行管理中心，江苏 徐州 2210001；2.南京市水利规划设计院股份有限公司连云港分公司，江苏 连云港 222000）
Author(s):
LU Mei1;  SUN Yuncun2
（1. Xuzhou Water Conservancy Engineering Operation Management Center, Xuzhou 221001, China；2. Lianyungang Branch of Nanjing Water Conservancy Planning and Design Institute Co., Ltd., Lianyungang 222000, China）
关键词:
排涝泵站; 深基坑; HSS模型; 数值模拟; 受力变形
Keywords:
drainage pumping station;  deep foundation pit;  HSS model;  numerical simulation;  stress and deformation
分类号:
TV551.4
文献标志码:
A
摘要:
深基坑开挖实为卸荷过程，会破坏原有土体平衡状态，导致基坑产生较大的变形。依托江苏某大型排涝泵站工程背景，通过固结试验、三轴试验、弯曲元试验、共振柱试验等一系列室内试验，获取了基坑范围内各土层HSS本构模型的重要参数。基于此，利用有限元软件建立三维数值模型，模拟动态开挖过程，分析基坑开挖过程中围护桩水平位移、地表沉降的时空效应，以及内支撑的轴力变化规律。研究表明，HSS本构模型能有效模拟软土基坑的变形响应；随着基坑的逐步开挖，桩身水平变形持续增大，基坑拆除内支撑并施工主体结构期间，桩身水平变形增幅最大；基坑
Abstract:
Deep foundation pit excavation is essentially an unloading process that breaks the original soil equilibrium and leads to considerable deformation of the foundation pit. Relying on a large drainage pump station project in Jiangsu, a series of laboratory tests including consolidation, triaxial, bending element, and resonant column tests were carried out to obtain key parameters of the HSS constitutive model for each soil layer within the foundation pit. On this basis, a 3D numerical model is established using finite element software to simulate the dynamic excavation process. The spatiotemporal characteristics of horizontal displacement of retaining piles and surface settlement, as well as the variation of axial force in internal supports, are analyzed during foundation pit excavation. The results show that the HSS constitutive model can effectively simulate the deformation response of soft soil foundation pits. With gradual excavation, the horizontal deformation of piles increases continuously. The horizontal deformation increases most significantly during removal of internal supports and construction of the main structure. Surface settlement generally increases during excavation, but it is reduced to different degrees after each internal support is installed. The closer to the foundation pit corner, the smaller the surface settlement and axial force of internal supports, indicating that foundation pit deformation and internal support axial force exhibit significant spatial effects.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：2025-12-03
作者简介：鹿梅（1989—），女，工程师，本科，主要从事水利水电工程工作。E-mail:1203529214@qq.com
更新日期/Last Update: 2026-03-01