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基坑工程是地下工程施工中的重要组成部分.对于内撑式深基坑围护结构,其支撑体系的选择对整个地下工程的可靠性和经济性影响很大.本文结合工程实践,根据工程地质条件、支护的要求等,选取“相同直径、不同壁厚”和“相同壁厚、不同直径”的钢管支撑构件,将相关的一些参数进行对比,得出结论:利用Φ630,mm×10,mm螺旋焊钢管作为内支撑形成的支撑体系满足支护体系的要求.
The foundation pit engineering is an important part in the construction of underground engineering.For the supporting structure of deep foundation pit retaining structure, the choice of supporting system has a great influence on the reliability and economy of the whole underground engineering.In this paper, according to engineering practice, Geological conditions, support requirements, select the “same diameter, different wall thickness ” and “the same wall thickness, different diameter ” of the steel pipe support member, the relevant parameters are compared, concluded: the use of Φ630 , mm × 10, mm Spiral welded steel pipe as a support system formed to support the support system requirements.