管棚法支护在富水层沙土地质深基坑支护工程中的应用

Application of Pipe Shed Support in Deep Foundation Pit with Sandy Soil Geology and Rich Water Layer

结合某建筑工程,针对其存在突涌、流沙以及地下构筑物及周边建筑物变形较大的问题,采用管棚法对深基坑进行支护,主要围绕该技术的原理、施工要点、施工质量及安全控制措施进行探讨,并对施工经济效益进行分析,最终得出结论:管棚支护法具有经济、高效的优点,用在深基坑支护中可取得较好的社会效益和经济效益。

Based on a certain construction project,the paper adopts the pipe shedmethod to support the deep foundation pit in response to the problems of sudden surge,quicksand,and large deformation of underground structures and surrounding buildings.The main focus is on the principle,construction points,construction quality,and safety control measures of this technology,and the analysis of the construction economic benefits.Finally,the conclusion is drawn that the pipe shed support method has the advantages of economy and efficiency.It can achieve good social and economic benefitswhen used in deep foundation pit support.