Auxiliary device and method for hoisting pipe jacking pipe joints in place

Abstract

The invention discloses an auxiliary device for top pipe section lifting in place. A lifting frame for lifting pipe sections to be mounted and guide rails for oriented sliding of the lifting frame areprovided; the guide rails are paved in a foundation pit of the pipe sections to be mounted; then, guide rods are respectively arranged at the two ends of the lifting frame; guide rollers are arrangedat the outer ends of the guide rods; in the use process, the guide rollers at the two ends of the guide rods are positioned in the guide rails for positioning auxiliary landing placement of the lifting frame; and when the lifting frame is used for lifting the pipe sections for unloading, the guide rollers at the end parts of the guide rods are used for slidingly cooperating with the guide rails to realize limiting of a downward moving trajectory of the lifting frame, so that swing in the downward moving process is prevented, the positioning precision of pipe unloading is improved, the quick pipe unloading stability is preferably guaranteed when the pipe unloading speed is accelerated, direct contact of workers with the pipe sections to be mounted in the construction process is prevented,and the construction safety is greatly improved.

Description

technical field [0001] The invention relates to the technical field of pipe jacking, in particular to an auxiliary device and method for hoisting and placing pipe jacking joints in place. Background technique [0002] With the acceleration of urbanization in our country, the utilization of urban underground space has penetrated into many engineering fields, and the construction methods of underground engineering have also shown diversified development. As a new type of underground structure construction method, urban pipe jacking construction has attracted much attention because it solves the problem of excessive ground requirements. Although the urban pipe jacking construction has been developed for many years, the relatively old rope-drawing method is still used for pipe jacking. The method is roughly as follows: when the pipe joint is lowered, two ropes are tied on the pipe joint. After the pipe joint is hoisted by the crane, in order to avoid the pipe joint from swingin...

AI Technical Summary

Problems solved by technology

Although this method can carry out the work of lowering the pipe, it needs to invest a lot of manpower, and the time for lowering the pipe is too long to delay the construction period. During the process of lowering the pipe, it will also collide with the upper pipe joint due to the swing, which may cause construction personnel casualties and consume a lot of manpower. , physical resources

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