温州世贸中心深基坑施工技术.pdf

2010年9月 施工技术 第39第9期 CONSTRUCTION TECHNOLOGY 温州世贸中心深基坑施工技术 徐平飞 (上海建工(集团)总公司南方分公司,上海200433) 温州世中心地下4层,基坑面积大深度深且地质件差周边建筑密集施工难度大基采用地下 连墙加4道钢筋混凝土内支撑(局邮5道)的围护方武,对地下连续墙的施工参数、理论和实测意形值进行比较 和总结,对达水性差的淤泥土层采取降水猎施并进行了效果分析,对挖土和混凝土支撑施工进行了合理分区及 顺摩布置,采用信意化监测指导施工,保证基坑施工的安全和质量,工程整体效果良好。 关键词]基坑工程地下油支降水 [中分类号]TU753 文献标识码 文章编]1002-8498(2010)09006305 Construction Technology of Deep Foundation Excavation in Wenzhou World Trade Center Xu Pingfei South Company of Shanghai Construction Group ,Shanghai 200433 ,China ) Abstract :Wenzhou World Trade Center has 4 floors basement .The large and deep foundation excavation has poor geological conditions and it is surrounded with serried buildings ,so the foundation excavation is difficult to construct .To ensure safety and quality of the foundation excavation ,diaphragm wall and 4 layers reinforced concrete internal supports ( 5for somewhere )are designed .The construction parameters of the diaphragm wall ,the theretical value and the measured value of deformation are pared and summarized .The poor permeable silt soil is pre-treated and the effects are analyzed .The construction of the excavation and concrete support has reasonable partition and sequen...