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文章结合国道106线曲江县茨菇塘至南华寺段改建工程中滑坡整治预制管桩基础断裂事故,运用非圆弧滑动面土坡稳定理论对管桩的受力进行了分析,采用m法计算桩身的受力情况,与管桩的实际破坏情况进行对比分析,并用结构设计理论对原管桩承载能力进行验证,同时考虑施工实际,对承载力不足的部分采取内插工字型钢,变管桩为实心桩的处理方案。通过详细的技术论证,该方案可以满足受力要求和施工要求。
Combined with the failure of landslide remediation prefabricated pipe foundations in the reconstruction of the Cuitangtang to Nanhua temple section of State Road 106 in Qujiang County, the stress of pipe piles is analyzed by using the theory of non-circular sliding surface slope stability. The m- The stress of the pile body is calculated and compared with the actual damage situation of the pipe pile. The structural design theory is used to verify the bearing capacity of the pipe pile. At the same time, considering the construction practice, Variable pile is a solid pile of treatment programs. Through detailed technical demonstration, the program can meet the stress requirements and construction requirements.