River-near underground blow-off pipeline building structure

The utility model discloses a river-adjacent underground sewage pipeline building structure which comprises a sewage pipe (2) built in a sludge or soft soil layer, a concrete layer (1) is wrapped outside the sewage pipe (2), a concrete cushion layer (4) is arranged below the concrete layer (1), a gravel layer (5) is arranged below the concrete cushion layer (4), and the gravel layer (5) is arranged on the sludge or soft soil layer. According to the utility model, the influence of sludge or a soft soil layer on the blow-off pipe can be counteracted, the service life of the blow-off pipe is prolonged, and finally, the service time of an underground blow-off pipe network system is prolonged. 本实用新型公开了一种临河地下排污管道搭建结构，包括搭建在淤泥或软土层中的排污管（2），所述排污管（2）外包裹有混凝土层（1），所述混凝土层（1）下方设置有混凝土垫层（4），所述混凝土垫层（4）下方设置有碎石层（5），所述碎石层（5）设置在淤泥或软土层上；本实用新型可以抵消淤泥或软土层对排污管的影响，增长排污管的使用寿命，最终使得地下排污管网系统的使用时间增长。