Construction method for waterlogging removing of outdoor cable chute

Abstract

The invention relates to a construction method for waterlogging removing of an outdoor cable chute. The method comprises the steps of 1, setting the inner bottom face of the outdoor cable chute to be a slope and setting draining holes in the bottom of the side wall of the cable chute with lower slope side; 2, mounting water conduits on the draining holes, communicating the water conduits with the mounting positions of the draining holes, sleeving seal pads at the connecting positions between the water conduits and the draining holes and radially mounting screens in the water conduits; 3, connecting the other ends of the water conduits with an adjacent rainwater well by pipelines; and 4, mounting check valves on the connecting positions between the water conduits and the rainwater well in a hinging mode, wherein the check valves are opened when water flows flow from the water conduits to the rainwater well, otherwise, the check valves are closed. According to the method, after the water flows flow into the rainwater well, the check valves are rotated in a swinging mode to be reset to connect with openings of the water conduits in a pressing mode, so backflow of water flows is avoided, the possibility that external water permeates into the cable chute is also prevented due to the seal pads at the contacting positions between the draining holes and the water conduits and creeping of small animals such as mice can be prevented by the design of the screens in the water conduits.

Description

technical field [0001] The invention belongs to the field of drainage construction methods, in particular to a construction method for removing stagnant water in outdoor cable trenches. Background technique [0002] Cable lines are an important part of urban power grids. With the increasing improvement of urban functions, the requirements for urban overhead lines to enter the ground are becoming more and more prominent. In recent years, cable trenches and cable pipes have been built on newly-built roads at the same time, and the cable channel network composed of them will provide guarantee for future urban development. As long as the outer sheath of the cable is of good quality and the laying is not damaged, a small amount of water in the cable trench will not have a great impact on the cable, but if there is too much water, the cable will be soaked in water for a long time, which will seriously affect the external insulation performance of the cable and operational stabili...

AI Technical Summary

Problems solved by technology

As long as the outer sheath of the cable is of good quality and the laying is not damaged, a small amount of water in the cable trench will not have a great impact on the cable, but if there is too much water, the cable will be soaked in water for a long time, which will seriously affect the external insulation performance of the cable and operational stability, causing power grid accidents

[0003] At present, the method of solving the water accumulation in the cable trench usually adopts the method of pumping, but the cost of the pump is relatively high, which seriously increases the cost of electric emergency rescue, and the submersible pump can only be completed with the help of multiple electrical components, some of which are more precise. , higher maintenance costs