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

Abstract

The invention discloses a large-tonnage water steel pipe pile removal device and a construction method. The water steel pipe pile removal device includes a floating box platform, a reinforced connection frame, a reaction force frame and two jacking mechanisms; the floating box platform includes two sets of floating box systems, and each set of floating box systems includes at least one floating box The two groups of pontoon systems are the first and second pontoon systems respectively; the reinforced connection frame can assemble the top plates of the two groups of pontoons into one; the reaction force frame includes the working platform plate, the thick rib stiffening plate and the gripping mechanism; The working platform plate is provided with a passage allowing the gripping mechanism to pass through in the middle position, and the edge positions are at the two ends of the horizontal direction, which are directly connected with the top plates of the first and second floating box systems respectively; Each side is provided with a bracket, corresponding to the first bracket and the second bracket, which are respectively used to support the two jacking mechanisms. Through the device for removing steel pipe piles in water in the present invention, the complete recovery of the steel pipe piles to be removed can be realized.

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 the removal of underwater steel pipe piles (temporary support system), 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 the construction of bridge engineering, the "large steel pipe + Bailey truss" system (as shown) is usually used as the temporary support structure of the upper structure of the bridge. , Steel pipe piles can provide stable foundation bearing capacity, especially in the part that spans the water system (the full house support system needs to use the island cofferdam, and the foundation is reinforced, in the Yangtze River Delta, Pearl River Delta and...

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

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