摘要
地面沉降是上海市面临的主要地质环境灾害 ,近年来有加速趋势 ,本文分析了上海地面沉降的历史、现状和进一步发展趋势 ;指出除超量抽取地下水外 ,造成近期上海地面沉降加速有 4方面原因 ,为提高沉降计算和预测的准确性 ,应采用能考虑不确定性影响因素和深部土层沉降影响的研究方法。最后 ,作者分析了防治上海地面沉降的
In pace with population grows and high-speed develops of economy and modernization, the environment geologic being destroyed and lead to the serious geologic environment problems in the city of Shanghai. Ground subsidenc is a main geological hazards in Shanghai, which is move serious in recent years. In this paper, the authors discuss the current situation of ground subsidence, study the mechanism of ground subsidence. The authors point out that there are four reasous make the ground subsidence more serious in addition to groudwater over-extraction. To increase the degree of accuracy of ground subsidence predication, the undetermined factors and deep soil layer consolidation must be considered when compute the ground subsidence. The counter-measures to ground subsidence are also be proposed.
基金
上海市高等学校科学技术发展基金资助项目!(99JG0 5 0 5 5 )
关键词
上海市
地面沉降
预测
防治对策
Shanghai, land subsidence, forecast, countermeasures of control
