4/3/2025, 5:26:23 PM 星期四
Numerical Simulation Analysis on Dewatering in Foundation Pit Project of Nanshanhu Comprehensive Building in Nantong
CSTR:
Author:
Affiliation:

The 3rd Geological Brigade of Jiangsu Geology & Mineral Exploration Bureau,Jiangsu University of Science and Technology,Yunnan College of Tourism Vocation

Clc Number:

TU46 3

  • Article
  • | |
  • Metrics
  • |
  • Reference [8]
  • |
  • Related [20]
  • |
  • Cited by [0]
  • | |
  • Comments
    Abstract:

    Foundation pit dewatering is the key to the whole foundation pit safety. Although the waterproof curtain was built in the foundation pit excavation of Nanshanhu complex building in Nantong, it is still necessary to make a safety assessment on the dewatering scheme of the foundation pit. 3-dimensional seepage model is established by using the MIDAS/GTS numerical analysis software, by the simulating analyzing a single well pumping test in the field and synthesizing the permeability coefficients of indoor tests in the geological exploration report and pumping tests, the seepage boundary function and the permeability coefficients fitted for the practical engineering situation are inversely deduced; then the 3-dimensional seepage model is established by using the parameters reversely derived to simulate the changing relation between water level and time in multi wells pumping. The dewatering effect of multi wells is analyzed to verify whether the dewatering design is reasonable in order to guide the foundation pit excavation.

    Reference
    [1]戴根宝,曹海明,杨民,徐光途.南京长江第四大桥北锚碇沉井基坑降水与地面沉降模拟预测[J].勘察科学技术2011(4):37-42.
    [2]中国土木工程学会土力学及岩土工程学会.深基坑支护技术指南[M].北京:中国建筑工业出版社,2012.
    [3]常林越,沈健,徐中华.敏感环境下深基坑的设计与三维数值分析[J].铁道工程学报,2011,158(11):52-57,121.[4]周念清,唐益群,娄荣祥,江思珉.徐家汇地铁站深基坑降水数值模拟与沉降控制[J].岩土工程学报,2011,(12):1950-1956
    [5]陈华明.软土地区深基坑管涌事故原因分析[J].探矿工程(岩土钻掘工程),2012,39(2):67-69.
    [6]李广信等.高等土力学[M].北京:清华大学出版社,2004.
    [7]梁卫东,张俊平,张耀,唐正国.深基坑工程中地下水问题的研究[J].施工技术,2005,34(6):60-61.
    [8]刘历波,王晓磊,史三元.基坑开挖过程中地下水渗流数值模拟[J].河北工程大学学报(自然科学版),2013,30(3):13-16.
    [9]丁春林.软土地区承压水基坑突涌稳定计算法研究综述[J].地下空间与工程学报,2007,3(2):333-338.
Get Citation
Share
Article Metrics
  • Abstract:1012
  • PDF: 959
  • HTML: 209
  • Cited by: 0
History
  • Received:June 27,2017
  • Revised:August 08,2017
  • Adopted:August 21,2017
  • Online: November 23,2017
Article QR Code