Embedded pressure relief and drainage structure of underground pipe gallery

The invention relates to the field of civil engineering construction, in particular to an underground pipe gallery pre-buried pressure relief and drainage structure which is arranged at the position of a structural joint of a pipe gallery and comprises an externally-attached water stop piece arranged on the outer side of the pipe gallery and a middle-buried water stop belt arranged in the structural joint, and a drainage pipe is pre-buried in at least one of the two sides of the structural joint of the pipe gallery. One end of the drainage pipe extends to the part, between the middle-buried water stop belt and the externally-attached water stop piece, of the structural joint, and the other end of the drainage pipe extends to the inner side of the pipe gallery. Water pressure at the position of the middle-buried water stop belt can be released through the arranged drainage hanging pipe, and the problems existing in the prior art are effectively solved. 本发明涉及土建施工领域，尤其涉及一种地下管廊预埋泄压排水结构，设置在管廊的结构缝位置，包括设置在管廊外侧的外贴止水件