深基坑坑中坑区域轻型薄壁钢管支护施工技术

Construction Technology of Light Thin-walled Steel Pipe Support in Pit-in-pit Area of Deep Foundation Pit

依托菏泽新闻大厦项目深基坑的坑中坑支护实践,对比分析了各种支护方式的便利性、经济性、快捷性,创新采用轻型薄壁钢管支护施工方法,达到了安全、快捷、高效、节约的目的。经项目应用实践,证明轻型薄壁钢管支护桩适用于面积不大的深基坑坑中坑基础支护。

Relying on the pit-in-pit support practice of the deep foundation pit of Heze News Building project,the convenience,economy and rapidity of various support methods are compared and analyzed and the construction method of light thin-walled steel pipe support is innovatively adopted to achieve the goal of safety,rapidity,efficiency and economy.The project application practice proves that the light thin-walled steel pipe support pile is suitable for the foundation support of pit-in-pit with small area of deep foundation pit.