Bridgehead car jump restoration and precaution method based on load reduction

Abstract

The invention discloses a bridgehead car jump restoration and precaution method based on load reduction. The problem that car jump at bridgeheads exists in the prior art is solved, and the problems that methods adopted at present has high requirements for materials, a long curing time is needed during forming, the construction period is long, and the influence on traffic operation is large are solved. The method comprises the steps that holes are drilled at intervals in the original road face of a bridgehead; hollow barrels are buried in the holes, and the holes are backfilled until the holes are flush with the original road face of the bridgehead; and a road face is additionally laid on the original road face of the bridgehead to restore the bridgehead line shape. The method has the advantages that through the load reduction method, the strength and performance of the original road face are fully used to achieve the purpose of load reduction, and then later settlement is effectively controlled and treated; the hollow barrels are buried in the holes, the curing time needed by slurry or foam concrete is omitted, the displacement work amount is reduced, and the influence period on the traffic is short; and machines are not needed for mounting, and construction is simpler, more convenient and more economical than that of foam concrete.

Description

technical field [0001] The invention relates to the technical field of road engineering, in particular to a method for repairing and preventing vehicle jumping at a bridge head based on load reduction, which is convenient for construction and has a short traffic impact period. Background technique [0002] There are many car jumps at the bridge head of bridges in our country, especially in soft soil areas. The vehicle jumping at the bridge head is caused by the settlement difference between the abutment and the top surface of the subgrade due to the uneven settlement of the abutment and the subgrade behind. In soft soil areas, the settlement difference is not only caused by the compression of the subgrade filler itself, but also caused by the consolidation settlement of the foundation, and its serious value can reach tens of centimeters. [0003] Bridge head jumping not only seriously affects the use function of the road bridge structure, but also causes great structural da...

AI Technical Summary

Problems solved by technology

[0009] The present invention mainly solves the problems of vehicle jumping at the bridge head in the prior art, and the incompleteness, uneconomical, inconvenient construction, and great impact on traffic operation of the method of passively continuously overlaying or perforating to replace light materials. , providing a method of repairing and preventing bridge head jumping based on load reduction, which is convenient and fast in construction, has little impact on traffic, and is thoroughly treated and economical

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