Connection between the pipeline and the inspection well: In the construction plan, the nozzle is indented into the inner wall of the inspection well by 0.3 m to 0.5 m, painted with mortar to form a "trumpet shape", and the surrounding area is filled with mortar and compacted, and then bricks are built, but a closed water test is performed Can not meet the requirements, after inspection, the thermal expansion and contraction of the PE pipe will crack the inspection well, resulting in water leakage in the inspection well; the inspection well is not cracked, but the sealing of the connection between the pipeline and the inspection well fails to meet the requirements, resulting in seepage, Water leaks, etc.
