Analysis and Treatment Measures of Water Leakage in Power Tunnels

There are many cables in the power tunnel,power cables and other power facilities are very sensitive to water. Although many waterproof measures have been taken for the high-voltage cable body, accidents and losses may be caused if ponding inundates the power cable (especially the cable joint). This paper analyzes the causes of water leakage in tunnels with concealed excavation , shield and other structural forms in detail,studies the treatment measures of water leakage in segments, ring beams, settlement joints, walls and pipe holes, gives targeted treatment suggestions and introduces the application. Provides reference for the long-term work of water leakage treatment of power tunnels