悬挂式止水帷幕基坑控水优化方法

doi:10.12068/j.issn.1005-3026.2021.02.014

东北大学学报（自然科学版） ›› 2021, Vol. 42 ›› Issue (2): 242-251.DOI: 10.12068/j.issn.1005-3026.2021.02.014

悬挂式止水帷幕基坑控水优化方法

张志红，秦文龙，张钦喜，郭晏辰

(北京工业大学城市与工程安全减灾教育部重点实验室，北京100124)

收稿日期:2020-06-30 修回日期:2020-06-30 接受日期:2020-06-30 发布日期:2021-03-05
通讯作者: 张志红
作者简介:张志红(1976-)，女，河北深州人，北京工业大学教授，博士生导师.
基金资助:
北京市自然科学基金重点资助项目(8171001).

Water Control Optimization Method of Foundation Pit with Suspended Waterproof Curtain

ZHANG Zhi-hong， QIN Wen-long， ZHANG Qin-xi， GUO Yan-chen

The Key Laboratory of Urban Security and Disaster Engineering， Ministry of Education， Beijing University of Technology， Beijing 100124， China.

Received:2020-06-30 Revised:2020-06-30 Accepted:2020-06-30 Published:2021-03-05
Contact: ZHANG Zhi-hong
About author:-
Supported by:
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摘要/Abstract

摘要： 基于地下水渗流连续性原理并结合达西定律，推导出了止水帷幕在不同插入深度下的圆形基坑涌水量计算公式.在此基础上，借鉴我国船舶工程中广泛采用的阻力系数法，提出了考虑悬挂式止水帷幕的地表沉降量计算方法.最后综合涌水量和地面沉降计算方法，以控水成本为目标，以基坑涌水量和坑外地面沉降量为约束条件，建立了一套完整的兼顾基坑设计安全性和经济性的悬挂式止水帷幕基坑控水设计优化方法，并以北京市通州区某工程场地为例，对所建立的控水优化方法进行了具体应用.

关键词: 基坑降水；悬挂式止水帷幕；涌水量；地面沉降；控水；优化设计

Abstract: The calculation formulas for water inflow of a circular foundation pit with different insertion depths of waterproof curtain are proposed based on the principle of seepage continuity of groundwater and Darcy’s law. The analytical solution of ground subsidence outside the foundation pit with different insertion depths of waterproof curtain is proposed according to the method of resistance coefficient widely used in ship engineering in China. Finally， an applicable procedure of dewatering of foundation pit with waterproof curtain partially penetrating aquifers was developed， in which water control cost is set as the target， and ground subsidence and groundwater inflow are set as the constraints conditions considering both safety and economy of foundation pit design. The proposed optimization method for water control was applied in a project site in Tongzhou district， Beijing.

Key words: foundation pit dewatering; suspended waterproof curtain; groundwater inflow; ground subsidence; water control; optimal design

中图分类号:

TU753

张志红，秦文龙，张钦喜，郭晏辰. 悬挂式止水帷幕基坑控水优化方法[J]. 东北大学学报（自然科学版）, 2021, 42(2): 242-251.

ZHANG Zhi-hong， QIN Wen-long， ZHANG Qin-xi， GUO Yan-chen. Water Control Optimization Method of Foundation Pit with Suspended Waterproof Curtain[J]. Journal of Northeastern University(Natural Science), 2021, 42(2): 242-251.

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悬挂式止水帷幕基坑控水优化方法

Water Control Optimization Method of Foundation Pit with Suspended Waterproof Curtain

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