软土地区顶管施工顶力计算与应用

Calculation and application on jacking force induced by pipe jacking construction in soft soil

分析了影响直线顶管施工顶力的因素,根据宁波市区土质的实际情况,以多个排水管道顶管工程为参考,结合现场实测数据,对淤泥质土层中直线顶管的顶推力进行了研究,得出了符合宁波软土地区管道外壁与土的单位面积平均摩阻力的取值。

This paper analyzed the factors influence the linear pipe jacking construction jacking force,according to the actual situation of area soil quality in Ningbo,taking multiple drainage pipe jacking engineering as reference,combining with the field measured data,researched the linear pipe jacking force in muddy soil,concluded that the evaluation conformed the soft soil area pipeline outer wall in Ningbo and unit area average friction resistance of soil.