Method and structure used for handling highway bridgehead bumping problem

A bridgehead jumping, highway technology, applied in infrastructure engineering, roads, roads, etc., can solve the problems of high strength requirements of long and short piles, high construction cost, complex construction facilities and construction process, etc. Simple, low construction cost, and the effect of solving the problem of bridge head jumping

Inactive Publication Date: 2013-03-20
MCC COMM CONSTR GRP CO LTD
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Problems solved by technology

[0005] The invention proposes a method and structure for dealing with the problem of car jumping at the bridge head of expressway, wherein the pile length, pile diameter and pile foundation density in the pile group foundation are all gradually reduced, and the piles and soil are closely combined to realize the pile group foundation and pile foundation. The rigidity of the abutm

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  • Method and structure used for handling highway bridgehead bumping problem
  • Method and structure used for handling highway bridgehead bumping problem

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Embodiment Construction

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] In the following description, some exemplary embodiments of the present invention are described by way of illustration only, and those of ordinary skill in the art will recognize that, without departing from the spirit and scope of the present invention, the The described embodiments can be modified in various ways. Accordingly, the drawings and description are merely illustrative in nature and are not intended to limit the scope of the claims. In addition, in this specification, the same reference numerals designate the same parts.

[0023] figure 1 It is a flow chart of a processing method for vehicle jumping at a bridgehead of an expressway. Such as figure 1 As shown, in step S110, according to the road surface load and foundation conditions, first design a pile group variable stiffness scheme that meets the bridge head ...

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Abstract

The invention provides a method and a structure used for handling a highway bridgehead bumping problem. According to the invention, based on road load and foundation conditions, a pile group variable-stiffness program satisfying bridgehead subsidence control requirements is designed. A foundation reinforcement treatment is carried out by using common bored piles, such that bearing capacity of shallow foundation is improved, and subsidence is reduced. Through the gradual reduction of pile length, pile diameter and pile density in a group pile foundation, group pile base heterogeneous distribution is realized, and group pile foundation stiffness smooth variation is formed. Compared with prior arts, with the method and the structure provided by the invention, the bridgehead bumping problem is effectively solved. Construction facility and construction process are simple. Construction cost is low. The requirement for group pile foundation pile strength is relatively low.

Description

technical field [0001] The invention relates to the field of prevention and control of vehicle jumping at bridgeheads of expressways, in particular to a method and structure for dealing with the problem of vehicle jumping at bridgeheads of expressways. Background technique [0002] With the construction and development of expressways in our country, vehicle jumping at bridgeheads shortens the service life of vehicles and affects traffic safety. Vehicle jumping at bridgeheads has become an internationally recognized traffic technical problem. Under normal circumstances, the foundation of the abutment does not settle, so the jumping at the bridge head is mainly due to the uneven settlement of the foundation, which leads to the wrong platform at the bridge head of the road, which will cause adverse effects or even damage to the road surface structure. Insufficient anti-vibration performance and unreliable filling will also lead to vehicle jumping at the bridge head. The root c...

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Application Information

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IPC IPC(8): E01C3/00E02D27/12
Inventor 肖剑
Owner MCC COMM CONSTR GRP CO LTD
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