润华环球大厦深基坑支护方案优化.pdf

2011年10月上 施工技术 第40卷第350期 CONSTRUCTION TECHNOLOGY 47 润华环球大厦深基坑支护方案优化 黄志强1，耿丽2，李效萌，杨春1 (1.中国地质大学（武汉）工程学院，湖北武汉430074； 2.华中科技大学土木工程与力学学院，湖北武汉430074) [摘要]以苏州润华环球大厦深基坑工程为研究对象，通过技术和经济比较合理的选择支护方案，并以Z_SOIL.PC 专业岩土程软件为工具，分析各工况下围护结构的受力变形特性及周围土层位移.结果表明，采取土钉墙和围护 桩二道内支撑的方案相对于围护桩三道内支撑方案在受力性能上差别不大，但是技术经济效益却很明显，对 于基坑支护的设计具有一定的指导意义. [关键词]地下工程；深基坑；支护；优化 [中图分类号]TU753 [文献标识码]A[文章编号]1002-8498(2011)19-0047-03 Supporting Scheme Optimization for Deep Foundation Excavation in Runhua Global Building Huang Zhiqiang' Geng Li Li Xiaomeng' Yang Chun' (1.Faculty of Engineering China University of Geosciences Wuhan Hubei 430074 China; 2.School of Civil Engineering Mechanics Huazhong University of Science and Technology Wuhan Hubei 430074 China) Abstract:Based on deep foundation project in Runhua Global Building in Suzhou authors make reasonable choice of support scheme by technologic and economic parison.They make analysis on bearing and deforming behavior of retaining structure and displacement of around soils under several working conditions with Z_SOIL.PC.The results show that there is little difference on the mechanical behavior between the scheme of soil nailing wall and fender piles with two layers of supports and the scheme of fender piles with three layers of supports.However the first scheme has brought the obvious technology economic efficiency which offers reference to foundation supporting design. Key words:underground;deep foundation;excavation;support;optimization 1工程概况 工车辆通过围堰跨相门塘出行. 1.1基...