基于反演法的山区变电站高填方地基沉降分析  

The Settlement of Transformation Substation with High Fill Foundation in Mountainous Area Based on Inverse Analysis Method

作　　者：贺广零[1] 李倩妹[2] 洪芳[3] 彭双艳[4] 

机构地区：[1]同济大学建筑工程系,上海200092 [2]中南林业科技大学土木建筑与力学学院,长沙410004 [3]福建工程学院土木工程系,福州350007 [4]长安大学建筑工程学院

出　　处：《地下空间与工程学报》2008年第5期959-964,共6页Chinese Journal of Underground Space and Engineering

基　　金：国家自然科学基金委创新研究群体资助项目(50321803)

摘　　要：鉴于工程中压缩模量Es测不准的实际情况,基于参变量变分原理得出了弹塑性情况下的压缩模量Es和变形模量E0之间的关系,由工程中相对容易测定的变形模量E0来反演压缩模量Es,然后依据国标对山区高填方地基沉降进行计算。最后以500kV龙中变电站和220kV铁涌变电站为例,发现理论计算值与实测值吻合颇好,可为进一步研究山区变电站高填方地基沉降和制定相关规范提供参考。As the compression modulus can ＇ t be exactly measured in reality, the elastic-plastic relationship between compression modulus E and deformation modulus E0 is deduced based on the parametric variation principle. Usually the compression modulus E is determined in inverse method by deformation modulus E0 which can be correctly measured in reality, then, the transformation substation settlement is calculated according to the national code. At last, taking the 500kV Longzhong and 220kV Tiechong transformation substations as an example, it is found that the calculated results agree well with the experimental results. This paper is useful for the further research of the settle-ment of transformation substation with high fill foundation in mountainous area and designing of relevant codes.

关 键 词：反演法 高填方地基 沉降 压缩模量 变形模量 

分 类 号：TU441.6[建筑科学—岩土工程]