结构工程师Issue(4)：199-205,7.
上海某220 kV 地下变电站基坑工程优化设计
Optimization Design of a 220 kV Underground Substation Excavation in Shanghai
摘要
Abstract
A series of parametric studies for a 220 kV underground substation excavation in Shanghai area were performed with the two-dimensional finite element code Qimstar and Plaxis.The results were compared with the local historical cases to investigate the effects of the penetration ratios and the reinforcement parameters (i.e.,reinforcement depth,width,thickness and replacement ratio of strip strengthening soil)on the stability of excavations,safety factors,displacements and internal forces of diaphragm walls.On the basis of the numerical analysis results,some major findings were obtained:(1 )the optimization penetration ratio was between 0.75 to 0.8;(2)the optimization strengthening scheme of soil was that the strengthening depth, strengthening thickness and the width of strengthening soil,and the replacement ratio of strip strengthening soil were 17.1 m,11 m,3 m and 0.3,respectively.关键词
基坑/地下变电站/优化设计/数值分析/工程类比Key words
excavation/underground substation/optimization design/numerical analysis/engineering analogy引用本文复制引用
刘漾,姜波,马晓元,霍晓波..上海某220 kV 地下变电站基坑工程优化设计[J].结构工程师,2015,(4):199-205,7.基金项目
国家电网公司科技项目“地下变电站优化设计技术研究” （）
