摘要
本文给出地面沉降的主体——粘性土的均匀度理论,运用Grubbs方法区分压缩层的自然沉降与过量开采地下水导致上复土层孔隙水消散而造成的人为沉降。同时从地面沉降值对比中,上海市区近年地面沉降的年平均值为3.71 mm±0.31,大于邻近地区同期年平均值2.62mm±0.31。
The theory of uniformity of clayey loam, main part of ground settlement presented in the thesis, introduces the Grubbs Method to distinguish the natural setllement of the compr ssed layer from that cauged from man's overuse of underground water, which induces lack of water in the pores of the upper filling layer, In comparison between different values from ground settlment it is found that in past few years the mean annual values in Shang hai were 3.71 mm±0.31, great than that in its adjacent area, 2.62 mm±0.31
出处
《上海地质》
1993年第2期27-38,45,共13页
关键词
地面沉降
粘性土
均匀度
ground settlment, elayey loam uniformity
