PE给水管道水平定向地下穿越回拖力计算的探讨  

Discussion on the PE Water Supply Pipeline Drag Back Force Calculation of Horizontal Orientation Underground Passing Through

作　　者：钟鸣 

机构地区：[1]广东省中山市公用工程有限公司,广东中山528403

出　　处：《工程建设与设计》2011年第11期141-143,共3页Construction & Design for Engineering

摘　　要：针对灌满水的PE给水管在充满泥浆的定向穿越孔中回拖时的受力特征,综合运用水力学、材料力学及物理学中的相关知识,计算了灌满水后的PE给水管水平定向穿越宽约1025m磨刀门水道所需要的回拖力;依据计算的回拖力核算了PE给水管的管壁厚及管截面的抗拉应力;依据回拖到位后的PE给水管能达到施工图设计所要求的强度及严密性实验要求,得出了回拖到位后的PE给水管是能够满足正常供水要求的结论。In the light of drag back force characteristics of the water pipe filled with water directed through the hole filled with mud,the article integrated use hydraulics,mechanics of materias and physics knowledge,calculated the drag back force of PE filled with water required to return in horizontal orientation through the 1025m width Modaumen;based on the drag force calculated,accounted the pipe wall thickness and the tensile stress of cross-section of PE water pipe;based on the achievement of the required strength and tightness test requirement of the PE pipeline after drag back in place advanced by the construction drawing,the conclusion that the PE water pipeline drag back in place is able to meet the normal water supply requirements were obtained.

关 键 词：密度 泥浆 回拖力 拉应力 管截面 管壁厚 摩擦系数 PE给水管 水平定向穿越 

分 类 号：TU991.05[建筑科学—市政工程] TU821.3