地面沉降对给排水管道变形的影响

Influence of land subsidence on deformation of water supply and drainage pipeline

统计了某工程区的给排水管道勘查数据,以此为基础建立了工程区土层的2D数值模型,通过数值模拟对不同土层类型和地面沉降量的关系进行了分析,剖析了沉降造成的给排水管道破坏机理。基于层次分析法对给排水系统设计与施工过程中的相关影响因素进行加权,通过加权后的因素计算出区域中各点的给排水系统规划综合评价值,将工程区分为三个等级的给排水管道设置区,为给排水系统规划提供参考。

Based on the statistics of the survey data of water supply and drainage pipelines in an engineering area,a 2D numerical model of the soil layer was established in the area.Through numerical simulation,the relationship between different soil layer types and land subsidence,and the damage mechanism of water supply and drainage pipelines caused by settlement were analyzed.Based on the analytic hierarchy process,the relevant influencing factors in the design and construction of the water supply and drainage system were weighted.Through the weighted factors,the comprehensive evaluation values of the water supply and drainage system planning of each point in the area were calculated,and the project was divided into three levels of water supply and drainage pipeline setting areas,providing a reference for the water supply and drainage system planning.