Supporting prefabricated type reinforced concrete sump pit of benzvalene form interface of utility tunnel

The utility model relates to a municipal administration engineering comprehensive piping lane technical field, the utility model discloses a supporting prefabricated type reinforced concrete sump pitof benzvalene form interface of utility tunnel, the keep (shenglvehao)at a certain distance away has been offered and has been reserved the mouth in the utility tunnel, it sets up L type recess all around to reserve the mouth, the sump pit is installed in reserving the mouth, the sump pit includes sump pit main part and collection well cover, sump pit main part top sets up L type bulge and L typedepressed part, L type bulge cooperates with the L type groove phase of reserving around the mouth, L type depressed part cooperatees with collection well cover. The utility model provides a difficultproblem of the synchronous preparation installation of the unable and prefabricated utility tunnel of sump pit for construction speed, improve utility tunnel inside close the waterborne can, and improved the deep foundation pi