Method for governing bumping at bridgehead through multiple times of grouting
A bridge head jumping and multiple grouting technology, which is applied to bridges, bridge maintenance, bridge reinforcement, etc., can solve the problems of wasting manpower, destroying paving structure materials, and expensive prices, and achieves short maintenance time, guaranteed governance quality, The effect of low cost control
A bridge head jumping and multiple grouting technology, which is applied to bridges, bridge maintenance, bridge reinforcement, etc., can solve the problems of wasting manpower, destroying paving structure materials, and expensive prices, and achieves short maintenance time, guaranteed governance quality, The effect of low cost control
CN110485316APending Publication Date: 2019-11-22SHANDONG JIAOTONG UNIV
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[0039] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
[0040] It should be noted that the terminology used here is only for describing specific embodiments, and is not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.
[0041] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical proble...
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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...
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Patent Timeline
22 Nov 2019
Publication
CN110485316A
- IPC
- E01D22/00; E01C3/00
- CPC
- E01C3/00; E01D22/00
- Inventors
- 李晋; 毕崇祯