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Bridgehead vehicle bump prevention and control high polymer grouting technique and construction method thereof

A technology for bridge head jumping and disease prevention, which is applied in bridges, bridge maintenance, bridge reinforcement, etc., can solve the problems of difficult control of grouting pressure, damage to the board, and large grouting holes, and achieves good treatment effect and fast construction. , the effect of saving construction time

Active Publication Date: 2011-05-11
王复明
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Problems solved by technology

[0007] (2) Slab subsidence
The main defects of the cement grouting method are: the grouting hole is large, which will damage the board; the grouting pressure is not easy to control; it needs a certain curing time; the durability is poor, etc.
At present, polymer grouting technology is mainly used in foundation reinforcement and road maintenance of industrial and civil buildings, and there is no report on polymer grouting technology for bridge head jumping disease treatment in China

Method used

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  • Bridgehead vehicle bump prevention and control high polymer grouting technique and construction method thereof
  • Bridgehead vehicle bump prevention and control high polymer grouting technique and construction method thereof
  • Bridgehead vehicle bump prevention and control high polymer grouting technique and construction method thereof

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Embodiment

[0038] Embodiment: The high polymer grouting technology and construction method for the prevention and control of vehicle jumping at the bridge head according to the present invention, aiming at the problems of voiding and subsidence of the bridge head lapping plate, comprehensively apply ground penetrating radar (GPR) and falling weight deflection instrument (FWD) and laser level and other non-destructive testing systems for inspection and monitoring; inject high polymer materials into the bottom of the bridge head 2 or the bottom of the corbel 7, and the volume of the material will expand and solidify rapidly after a chemical reaction, so as to quickly fill the void, lift the slab and reinforce it The roadbed fundamentally prevents the vehicle jumping disease at the bridge head.

[0039] The high polymer grouting rapid treatment technology for the bridge head lapping disease includes the slab bottom grouting method and the beam bottom grouting method:

[0040] a. figure 1 B...

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Abstract

The invention discloses a bridgehead vehicle bump prevention and control high polymer grouting technique and a construction method thereof. Aiming at the problems of bridgehead butt strap gapping and sinking problems, nondestructive detection systems of a ground penetrating radar (GPR), a falling weight deflectometer (FWD), a laser level and the like are comprehensively applied to detection and monitoring; and a high polymer material is injected to the bottom of a bridgehead butt strap or the bottom of a sleeper beam, the volume of the material is quickly expanded and the material is cured after chemical reaction, so that the gapped butt strap is quickly filled and raised, the roadbed is reinforced, and bridgehead vehicle bump is radically prevented and controlled. Compared with the conventional treatment method, the technique has obvious innovation on the aspects of technical principles and construction methods, has the characteristics of good durability, short construction period, strong pertinence and the like, and initiates a new advanced, efficient, economic and practical bridgehead bump prevention and control path.

Description

technical field [0001] The invention belongs to the detection and maintenance technology of highway bridges, and relates to the prevention and treatment of bridgehead diseases of highway bridges, in particular to the high polymer grouting technology for the prevention and control of vehicle jumping diseases at the bridgeheads of highway bridges. Background technique [0002] Highway transportation occupies an extremely important position in the national economy and people's lives, and is an important symbol to measure a country's economic strength and modernization level. Since the 1990s, with the rapid development of my country's national economy, highway construction has been booming. It is predicted that by the end of 2010, the total mileage of my country's highways will exceed 4 million kilometers. With the continuous improvement of road grades, the proportion of road structures such as bridges and culverts is increasing. According to statistics, only for passages and ...

Claims

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Application Information

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IPC IPC(8): E01D22/00
Inventor 王复明石明生蔡迎春王绪东王小亮董亮李海东
Owner 王复明
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