超大深基坑工程选型与施工技术研究——以合景泰富嘉兴高铁新城项目综合体项目为例

Research on the Selection and Construction Technology of Super Deep Foundation Pit Engineering-Taking the Complex Project of Hejing Taifu Jiaxing High Speed Rail New City as an Example

合景泰富嘉兴高铁新城综合体超大深基坑项目占地面积107000㎡,总建筑面积552500㎡,基坑开挖深度为9.28m至13.33m不等,属于超大深基坑工程。文中结合合景泰富嘉兴高铁新城综合体超大深基坑案例,通过对各围护工程设计方案形式比选,分析了各方案在基坑安全、施工组织合理、成本必选等,论述了基坑围护设计形式“自稳式基坑支护组合技术”在项目实施过程中的优越性。

The Hejing Taifu Jiaxing high speed rail new city complex super deep foundation pit project covers an area of 107,000 square meters,with a total construction area of 552,500 square meters.The excavation depth of the foundation pit ranges from 9.28m to 13.33m,and it belongs to the super deep foundation pit project.The article combines the case of the super deep foundation pit of the Jiaxing high speed rail new city complex in Hejing Taifu,and analyzes the advantages of the"self stable foundation pit support combination technology"in the project implementation process by selecting the necessary design schemes for each enclosure engineering,including foundation pit safety,reasonable construction organization,and cost selection.