土坝坝内顶管施工浆砌石后座墙设计实例

Design Example of Jack Construction Blackseat wall in Earth fill dams

后座墙是承受顶管推力之反力的墙体,为确保后座墙在推力作用下不产生滑动、剪切或倾覆破坏,不产生明显的压缩变形,计算出顶管总推力的大小以确定后座墙断面设计,并通过验算来验证其是否符合设计要求。

The blackseat wall is the wall to take the push from conduit. In order to ensure the balsckseat wall will not be destroyed by sliding, shear and overturning and produced obvious compressive deformation, the total push of conduit was worked out to design the blackseat wall's profile and was tested by checking calculation.