Elevated bridge foundation surrounding ground road and construction method thereof

A technology for elevated bridges and construction methods, which is applied in the direction of infrastructure engineering, roads, roads, etc., and can solve problems such as uneven settlement of ground roads around the foundation of elevated bridges, and achieve the effects of reducing uneven settlement, simple operation, and excellent results

Pending Publication Date: 2018-03-30
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a ground road around the viaduct foundation to solve the problem of uneven settlement of the ground road around the viaduct foundation in the soft soil foundation area

Method used

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  • Elevated bridge foundation surrounding ground road and construction method thereof
  • Elevated bridge foundation surrounding ground road and construction method thereof

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Embodiment Construction

[0033] The conception, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings.

[0034] Such as figure 1 As shown in the figure, it is a common plan layout of the lower part of the viaduct. There are many columns at the central divider of the road on the ground. Due to the existence of column foundations and pile foundations, the roads around the columns generally do not undergo settlement, while other roads Settlement will occur due to the soft soil foundation, which will cause differential settlement between the surrounding of the viaduct cap platform and the existing new road. The generation of differential settlement will not only cause the problem of water accumulation on the road, but what is more serious is that when the vehicle is driving on the inner lane of the ground road, due to the uplift of the road around the cap, the vehicle will jump longitudinally and the lateral imbalanc...

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Abstract

The invention relates to an elevated bridge foundation surrounding ground road and a construction method of the elevated bridge foundation surrounding ground road. Chamfers are arranged in the positions of the edges of a bearing platform of an elevated bridge, steps are excavated in a surrounding road to the bottom of the bearing platform, macadam, gravel or sand is backfilled to the position above the top of the bearing platform, a surrounding road roadbed is formed, the position above the bearing platform of the bridge is filled with earth to form a stable sloping face, geotextile is arranged between the backfilling earth above the bearing platform and the surrounding road roadbed to form a stable sliding face, and therefore two independent settlement regions of a road roadbed settlementregion and a bearing platform settlement region are formed. Finally, construction of a roadbed road surface and a central median is finished. Compared with the prior art, the viaduct foundation surrounding ground road is convenient to construct, economical in manufacturing cost and good in elevated bridge foundation surrounding ground road differential settlement preventing effect.

Description

technical field [0001] The invention belongs to the field of road design and construction, and in particular relates to a ground road around a viaduct foundation and a construction method thereof, which are suitable for controlling the uneven settlement of the ground road around the viaduct foundation. Background technique [0002] In order to save and intensively use land for road traffic, motor vehicle roadways are usually set up on both sides of the viaduct foundation. Judging from the current situation of the construction of elevated expressways in domestic cities, the problem of uneven settlement of ground roads around the foundation of elevated bridges is more prominent, which seriously affects the safety of vehicles. Generally speaking, one side of the inner lane of an urban road has less settlement due to the reinforcement of the bridge pile foundation, while the other side is on the soft soil foundation, and generally only conventional backfilling treatment is perfo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/04E02D3/00
CPCE01C3/04E02D3/00E02D3/005
Inventor 袁胜强王胜朱静颖胡程张依婧
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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