A cable tunnel expansion joint waterproof device, expansion joint and working method

Abstract

The application provides a cable tunnel expansion joint waterproof device, an expansion joint and a working method, the waterproof device comprising opposite first and second fixed ends, the two fixed ends being respectively installed on two adjacent cable tunnel bodies, the inside of the first and second fixed ends being respectively provided with a first and a second winch, the first and second winches being connected through a traction steel cable, the opposite surfaces of the first and second fixed ends being respectively provided with a first and a second waterproof strip, under the control of the first and second winches, through winding or loosening of the traction steel cable, the first and second waterproof strips are close to each other and are attached to each other, forming a water stop belt. The application is based on the traction tenon and mortise structure of the cable tunnel expansion joint, through control of deformation, effectively solving the high cracking risk problem caused by inconsistent changes of the temperature shrinkage and self-shrinkage of the cable tunnel structure concrete, improving the structure self-waterproofing, and reducing the later crack sealing cost.

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