Statistical Analysis of Structural Diseases of Different Types of Cable Channels

Structural diseases are the main threats to safety and daily operation maintenance of cable channels. Through statistical analysis 255 channel structural nationwide, distribution characteristics were studied, seven types structures including cracks, seepage, displacement/deformation, material degradation, siltation, cavity damage revealed. The results show that water leakage, siltation cracks most important forms channels at present; have significant correlation with types, construction methods types. research can provide data support for design management