Large-tonnage underwater steel pipe pile removing device and construction method

Abstract

The invention discloses a large-tonnage underwater steel pipe pile removing device and a construction method. The underwater steel pipe pile removing device comprises a buoyancy tank platform, a reinforcing connecting frame, a counter-force frame and two jacking mechanisms, wherein the buoyancy tank platform comprises two buoyancy tank systems, and each buoyancy tank system at least comprises a buoyancy tank; the two buoyancy tank systems are the first buoyancy tank system and the second buoyancy tank system correspondingly; top plates of the two buoyancy tank systems can be spliced into a whole through the reinforcing connecting frame; the counter-force frame comprises an operation platform plate, a dense-rib thick stiffening plate and a gripping and wrapping mechanism; a channel allowing the gripping and wrapping mechanism to pass is formed in the middle position of the operation platform plate, and the edge positions of the operation platform plate are located at the two transverse ends and directly connected with the top plate of the first buoyancy tank system and the top plate of the second buoyancy tank system correspondingly; and brackets are arranged on the two transverse sides above the operation platform plate correspondingly and are the first bracket and the second bracket correspondingly so as to be used for supporting the two jacking mechanisms correspondingly. Through the underwater steel pipe pile removing device, complete recycling of steel pipe piles to be removed can be achieved.

Description

technical field [0001] The invention relates to a large-tonnage underwater steel pipe pile removal device and a construction method, which are mainly used for removing underwater steel pipe piles (temporary support systems), and belong to the technical field of civil engineering construction. Background technique [0002] With the development of urbanization in my country, the scale of urban municipal road network construction has increased significantly, especially in the Yangtze River Delta and Pearl River Delta regions. In bridge engineering construction, the "big steel pipe + Bailey truss" system (as shown) is usually used as the temporary support structure of the bridge superstructure. , steel pipe piles can provide a stable foundation bearing capacity, especially in the part that crosses the water system (the whole building support system needs to use island cofferdams, and the foundation should be reinforced. Island programs are not competitive). [0003] Engineerin...

AI Technical Summary

Problems solved by technology

[0006] However, unlike conventional trestles and other steel pipe piles with unrestricted working clearance, the space under the bridge is relatively limited after completion. Municipal bridges mainly take into account the elevation requirements of the cross-strait connecting roads, and the clearance is often very limited, making "lifting equipment + vibrating hammer" Conventional pile extraction equipment does not have the operating conditions, such as figure 1 shown

Images