Reinforcing device and method for overweight reinforcement cage of ultra-deep underground diaphragm wall

Abstract

The invention relates to a reinforcing device and method for an overweight reinforcement cage of an ultra-deep underground diaphragm wall. The overweight reinforcement cage is provided with a liftingpoint U-shaped rib, a longitudinal main rib and a hoisting point horizontal truss rib. One end of the hoisting point horizontal truss rib is fully welded with the lifting point U-shaped rib and the longitudinal main rib, and the other end is fully welded with the hoisting point horizontal truss rib at the position. When the reinforcement cage is hoisted through the L-shaped reinforcing rib, pulling force is transmitted to the longitudinal main rib and a longitudinal truss rib from the hoisting point U-shaped rib and then transmitted to the horizontal truss rib. 10cm full-length welding is adopted between left and right four sealing ribs of the hoisting point horizontal truss rib and a horizontal rib, so that the problem that the sealing rib is infirm in connection and even fall off due tooverlarge stress deformation at the hoisting point and cracking of the welding points of the sealing rib and the horizontal rib when the reinforcement cage is lifted is solved. The method is a reinforcing measure provided in an ultra-deep underground diaphragm wall construction process for solving the problems that when an overweight reinforcement cage is hoisted, stress at a hoisting point is concentrated, deformation easily occurs, a reinforcement welding point is cracked, and the reinforcement cage integrally deforms and is even broken.

Description

technical field [0001] The invention relates to an overweight reinforcement cage in the construction of an ultra-deep underground diaphragm wall, in particular to an overweight reinforcement cage reinforcement device and method for the construction of an ultra-deep underground diaphragm wall. Background technique [0002] When making the steel cage of the underground diaphragm wall, the horizontal bars and horizontal truss bars are connected by spot welding on the outside of the longitudinal main bars. The U-shaped reinforcement at the lifting point, the longitudinal main reinforcement and the longitudinal truss can realize 10d full welding. When the steel cage is hoisted, the tension is transmitted from the shackle to the U-shaped reinforcement at the lifting point, and then to the longitudinal main reinforcement and truss reinforcement through full welding, while the other longitudinal main reinforcement is transmitted through the spot welding between the horizontal truss ...

AI Technical Summary

Problems solved by technology

With the deepening of the ground wall, the reinforcement cage of the ground wall is lengthened, and the density of the reinforcement increases. When the reinforcement cage is hoisted, the spot welding force at the above position is relatively large, which is likely to cause deformation and de-soldering, which will lead to the overall deformation or even breakage of the reinforcement cage during the lifting process, resulting in quality problems. security incident

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