土工基础

›› 2011, Vol. 25 ›› Issue (6): 40-.

• 工程实录 • 上一篇    下一篇

某地区地面沉降调查分析

李东东， 冯晓洲   

  1. （河南省水文地质工程地质勘察院工程勘察处,河南新乡 453002）
  • 收稿日期:2011-07-27 出版日期:2011-12-20 发布日期:2012-01-15
  • 作者简介:李东东，男，1983年生，大专，助理工程师,主要从事岩土工程勘察、地质灾害评估、桩基施工等方面工作。

The Ground Subsidence Investigations and Analyses

LI  Dong  dong, FENG  Xiao  zhou   

  1. (Division of Geotechnical Investigation, Henan Provincial Hydrological and Engineering Geology Exploration Institute, Xinxiang Henan 453002, China)
  • Received:2011-07-27 Online:2011-12-20 Published:2012-01-15

摘要： 对某地区的地质环境条件及地面沉降现状等情况进行了调查，搜集了该区域的地质图、水文地质图、水文地质剖面图以及历史钻孔资料等。初步了解了沉降区的分布范围、沉降量大小以及当地生产生活用水情况，对沉降区的地下水、房屋的变形情况进行了长期的观测，并对所监测的数据进行了分析，基本查明了该地区地面沉降的原因是周边养鱼场长期大量抽取地下水引发土层固结排水导致的地面不均匀沉降。

关键词: 地面沉降, 地质调查, 地下水观测, 固结排水

Abstract: The ground subsidence phenomena at a site are investigated in this paper. Geological conditions are analyzed through regional geology maps, hydro\|geological profiles and historical boring information in the region. The distribution of the subsided area, settlement contours, quantities of groundwater extractions for industrial and residential needs, groundwater level underneath the subsided area and deformation of the building structures were monitored over an extended period of time. The monitoring data suggest that the ground subsidence was induced by excessive extraction of groundwater for fishing ponds. The consolidation of saturated soils resulted in differential settlement of the ground.