中文核心期刊
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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2017, Vol. 36 ›› Issue (7): 51-57.DOI: 10.3969/j.issn.1674-0696.2017.07.09

• 道路与铁道工程 • 上一篇    下一篇

富水填土区基坑开挖引起的地表沉降研究

靳晓光1,2，侯晓鹤1,2，孙志岗1,2，张浩凌1,2   

  1. （1.重庆大学 土木工程学院，重庆 400030；2.山地城镇建设与新技术教育部重点实验室，重庆 400030）
  • 收稿日期:2016-11-04 修回日期:2017-03-14 出版日期:2017-07-31 发布日期:2017-07-31
  • 作者简介:靳晓光（1967—），男，山东宁津人，教授，博士后，主要从事岩土工程、隧道与地下空间工程、道路工程、地质工程等方面的研究。E-mail：Jxgcqu@163.com。 通信作者：侯晓鹤（1992—），男，河南许昌人，硕士研究生，主要从事岩土工程方面的研究。
  • 基金资助:
    重庆市国土资源和房屋管理局科技计划项目（KJ-2015028）

Ground Surface Settlement Incurred by Excavation of Foundation Pit in Watery Filling Area

JIN Xiaoguang1, 2, HOU Xiaohe1, 2, SUN Zhigang1, 2, ZHANG Haoling1, 2   

  1. (1. School of Civil Engineering, Chongqing University, Chongqing 400030, P. R. China; 2. Key Laboratory of New Technology for Construction of Cities in Mountain Area of the Ministry of Education, Chongqing 400030, P. R. China)
  • Received:2016-11-04 Revised:2017-03-14 Online:2017-07-31 Published:2017-07-31

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摘要： 探讨了地下水渗流作用下填土区基坑开挖引起的周围地表沉降估算方法，推导了基坑开挖引起的地表沉降计算公式；结合富水填土区轨道交通区间深基坑开挖工程实例，对基坑周围地表沉降进行了理论分析和数值模拟研究。结果表明：地下水渗流是引起基坑周围地表沉降的重要原因之一。该方法实用性及可靠性较好，是类似地质环境条件下一种较好的地面沉降估算方法。

关键词: 铁道工程, 富水填土区, 基坑开挖, 渗流, 数值模拟, 地表沉降

Abstract: The estimation methods of the ground surface settlement incurred by the foundation pit excavation of filling area influenced by underground water seepage were discussed. The computation formula of the ground surface settlement caused by the foundation pit excavation was also deduced. Combining with the excavation project case of deep foundation pit at rail transit interval in watery backfilling area, both theoretical analysis and simulation study of the ground surface settlement around the foundation pit were carried out. The results show that underground water seepage is one of the important reasons for the ground surface settlement around the foundation pit. With good practicability and reliability, the proposed method is useful in estimating the ground surface settlement in similar geological environment.

Key words: railway engineering, watery filling area, foundation pit excavation, seepage, numerical simulation, ground settlement

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