土工基础

›› 2019, Vol. 33 ›› Issue (3): 268-271.

• 工程实录 • 上一篇    下一篇

深基坑土方开挖对基坑稳定性的影响分析

陈鸿志1，2 ，简文彬1，2 ，汪振峰3   

  1. （1.福州大学环境与资源学院，福州 350108；2.福州大学岩土工程与工程地质研究所，福州 350108；3.福建省建筑科学研究院，福州 350025）
  • 收稿日期:2018-09-03 修回日期:2018-09-25 出版日期:2019-06-20 发布日期:2019-08-16
  • 通讯作者: 简文彬（1963-），男，博士，教授，研究方向为岩土工程与工程地质。
  • 作者简介:陈鸿志（1992-），男，硕士生，研究方向为地质灾害。

Influence of the Earthwork on the Stability of Deep Excavation Supporting System

CHEN Hongzhi1,2, JIAN Wenbin1,2， WANG Zhenfeng3   

  1. (1.College of Environment and Resources, Fuzhou University, Fuzhou 350108
    2.Institute of Geotechnical and Geological Engineering, Fuzhou University, Fuzhou 350108
    3.Fujian Academy of Building Research, Fuzhou 350025)
  • Received:2018-09-03 Revised:2018-09-25 Online:2019-06-20 Published:2019-08-16

摘要： 土方工程是基坑工程的组成部分，对基坑工程有着重要的影响，尤其是深基坑工程。为探讨深基坑土方开挖对基坑稳定性的影响，结合工程案例从土方开挖对支护结构施工、对工程桩及对基坑支护结构的影响这三方面进行了详细地分析。结果证明深基坑土方开挖对基坑稳定性有显著影响，要科学有序地进行土方开挖。同时也给出了相应的处理方案，实践证明所提方案合理有效。此外，也给基坑施工过程中的土方工程提了几点建议，以期给同类基坑工程一些启示。

关键词: 深基坑工程, 土方工程, 土方开挖, 治理方案, 施工建议

Abstract: Geotechnical engineering and earthworks have their own complexity and characteristics. Earthwork is an integral part of earth work engineering which has a significant influence on deep excavation supporting system. For the purpose of evaluating the influence of earthwork sequence on the excavation projects, a case history is presented in this paper. Three aspects, which are earthwork sequence on the supporting structure construction, production pile installation, and stability of the supporting structure, are evaluated. The results indicate that the earthwork sequence has a significant impact of the stability of the excavated area and should be carefully designed. The monitoring results demonstrated that actual excavation sequence was appropriate. Suggestions on the excavation projects are also provided in the paper.

Key words: Deep Excavation Engineering, Earthwork, Excavation, Rehabilitation Program, Construction Suggestion