Method for governing bumping at bridgehead through multiple times of grouting

Abstract

The invention discloses a method for governing bumping at a bridgehead through multiple times of grouting. The method solves the problems that in the prior art, a method for governing bumping at the bridgehead is high in cost and it is difficult to carry out repeated treatment. The method has the beneficial effect that governing of the bumping at the bridgehead can be rapidly and effectively carried out. According to the scheme, the method comprises the following steps: in the roadbed filling process, a bridgehead bumping treatment component is pre-buried in a roadbed in a layered mode, the bridgehead bumping treatment component comprises a first pipe and a second pipe, the first pipe is buried in the roadbed, the second pipe is nested in the first pipe, one end of the second pipe is hollow or provided with a detachable end cover, and holes are formed in the peripheral sides of the second pipe and the first pipe; after bridgehead bumping occurs, the second pipe is rotated relative to the first pipe, and communication between the second pipe and the first pipe orifice is achieved; and high-pressure cement mortar is introduced into the second pipe separately and enters a roadbed soilbody through the holes of the second pipe and the first pipe. Thus, sedimentation is effectively reduced, and roadbed reinforcement is carried out to govern bumping at the bridgehead.

Description

technical field [0001] The invention relates to the technical field of weak roadbed treatment, in particular to a method for multiple times of grouting to control bridge head jumping. Background technique [0002] Due to the rigidity difference between the rigid abutment structure and the flexible embankment, the transition section of the road and bridge is subjected to repeated traffic loads, and uneven settlement occurs on both sides of the joint. disease. Vehicle jumping at the bridge head will have a negative impact on the working state of the bridge. If it is not dealt with in time, the vehicle will have a stronger and more frequent impact on the road surface and the bridge surface, which will accelerate the destruction of the bridge head road surface and expansion joints, seriously affecting the road. service life. [0003] In the prior art, there are many bridge head jumping processing methods, but there are mainly the following problems: [0004] 1) Digging pits o...

AI Technical Summary

Problems solved by technology

[0004] 1) Digging pits on the road surface, destroying the original paving structure materials of the road surface, and performing maintenance work, which will not only affect the normal use of the road, but also take a long time and waste more manpower;

[0005] 2) The existing maintenance methods are only one-time grouting to solve the problem of settlement. The road has a long service life. If settlement occurs next time, it still needs to be treated again according to the original old method, which cannot solve the problem in long-term operation. The settlement problem in

[0006] 3) The maintenance quality of the existing methods cannot be guaranteed, and all of them are surface repairs

[0007] 4) Some methods are expensive and do not have economic benefits

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