Construction method of a bending-type immersed tube anti-deformation structure

Abstract

The invention discloses a construction method for a bending-type immersed tube anti-deformation structure, which belongs to the field of immersed tubes and includes an immersed tube body, the immersed tube body includes a first pipe section and a second pipe section, the first pipe section The angle between the second pipe section is an acute angle; the first pipe section and the second pipe section are equipped with a distance adjustment mechanism, and the distance adjustment mechanism can move along the axial direction of the first pipe section and the second pipe section Movement; each of the distance adjustment mechanisms is connected with a counterweight buoyant tank, and the angle between the counterweight buoyant tank and the axes of the first pipe section and the second pipe section is adjustable. The buoyancy of the counterweight buoyancy tank is perpendicular to its plane. Changing its position on the immersed tube body and the angle between it and the immersed tube body can change the angle of the immersed tube when it is placed, so that the force is even and not easy to bend when it is placed. out of shape.

Description

technical field [0001] The invention relates to the field of immersed tubes, in particular to a construction method of a bending-type immersed tube anti-deformation structure. Background technique [0002] The floating box lifting and sinking method is a relatively new pipe section sinking method. Usually, 4 square buoyant tanks are placed above the pipe section, and the pipe section is directly hung by slings. The buoyant tanks are divided into two groups, the two buoyant tanks in each group are connected as a whole with steel trusses, and each group of buoyant tanks is positioned with anchor cables. The hoisting winch and the positioning winch of the floating tank are installed on the top of the floating tank. The positioning of the pipe section must be pulled by anchor cables at the left, right, front and back, and the positioning hoist is set on the top of the positioning tower. The main feature of this sinking method is that the equipment is simple, and it is suitable...

AI Technical Summary

Problems solved by technology

[0004] When the immersed tube is installed, in order to better connect the place where the water area meets the land, the immersed tube at this position needs to be made into a bent integrated pipe, and at the same time, the outer wall of the pipe will be covered with a coating for rust prevention. The bent immersed tube is prone to deformation during installation, making the coating easy to fall off, resulting in damage to the quality of the immersed tube

Images