Working method of overlapped elephant trunk device

Abstract

The invention provides a working method of an overlapped articulated chute device. The articulated chute device comprises a blanking hopper, a conical barrel pipe body and more than two chains for hoisting the conical barrel pipe body, the discharging hopper is installed on one side of the ship body, one end of the chain is connected with the discharging hopper, and the other end of the chain is movably connected with the end, away from the discharging hopper, of the conical barrel pipe body. The cone barrel pipe body comprises more than two cone barrels and connecting pieces used for connecting the cone barrels and the chain, openings are formed in the two ends of each cone barrel respectively, and more than two lifting lugs used for being connected with the chain are arranged on one side, corresponding to the opening in the upper side, of the side wall of each cone barrel. The lifting lug extends from the upper side opening of the conical barrel to the lower side opening along the outer side wall of the conical barrel and is formed on the outer side wall of the conical barrel; the connecting pieces are fixedly arranged on the chain at equal intervals and are movably connected with the lifting lugs; the conical barrels are movably connected with the chain at equal intervals through connecting pieces; the underwater riprap device has the advantage that the underwater riprap device cannot be greatly bent during underwater riprap operation.

Description

technical field [0001] The invention relates to the technical field of underwater construction, in particular to a working method of a superimposed slide pipe device. Background technique [0002] The immersed tube method is a construction method for building tunnels under water; the immersed tube tunnel is to float several prefabricated sections to the sea surface (river surface) site, and place them one by one in the dredged foundation trench. The underwater tunnel built by this method; in order to avoid local high points of the foundation, the bottom plate of the immersed tube is evenly stressed, and a high-precision leveling crushed stone cushion is designed between the bottom plate and the foundation as the foundation bed, and special crushed stones with high leveling accuracy are required. Stone cushion laying ship for construction. [0003] However, when the riprap pipe is used for riprap operations on the seabed, the ocean current will impact the riprap pipe. As the...

AI Technical Summary

Problems solved by technology

[0005] According to the technical solution disclosed in this patent document, although the problem of large bending range of the riprap pipe during the riprap operation can be solved to a certain extent, when the impact of the ocean current is too large, the deformation range of the riprap pipe will still be too large, making the The gravel in the riprap tube is difficult to pass through, which will affect the normal riprap operation of the riprap tube

[0006] In addition, because the gravel material contains certain sundries such as soil, if the traditional riprap pipe is used for discharging, the soil and other substances in the gravel material may fall to the bottom of the water and become part of the gravel cushion before dissolving or dissipating. , which will affect the laying flatness of gravel cushion

Images