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Geobag platform back roadbed and application method

An application method and technology of geotechnical bags, which are applied in the improvement field of the subgrade at the back of the abutment and the method, can solve the problems that the backfill is difficult to compact and compact, cannot provide enough backfill soil, and the construction space of the back of the structure is narrow, so as to save construction funds , the effect of reducing emissions

Inactive Publication Date: 2011-12-28
刘斯宏 +1
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Problems solved by technology

At present, the subgrade filling of the back of the structure with geonetwork reinforcement is effective in reducing the uneven settlement between the structure and the subgrade, but due to the narrow construction space of the back of the structure, it is difficult to compact the backfill soil. Therefore, Even if the geonet reinforcement is used, it cannot provide sufficient bearing capacity and effectively reduce the settlement of the backfill. Only when the ground has sufficient bearing capacity, it will not be damaged due to the joint action of the self-weight load of the fill and the traffic load. When the settlement is large, the reinforcement of geosynthetics will produce obvious effects

Method used

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  • Geobag platform back roadbed and application method

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Embodiment Construction

[0013] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0014] In the figure, the gravel and the original soil excavated in the foundation pit 3 on the back of the bridge and culvert channel 2 are put into a geotextile bag and tied into the mouth to form a geobag 1, which is stacked on the side of the foundation pit 3 on the back of the platform for use; After the back road foundation pit 3 is arranged according to the specifications, the filled geo bags 1 on the 3 sides of the back road foundation pit are criss-crossed and stacked on the road surface 4; the gaps between the geo bags 1 are filled with the ground soil; Consolidate by machine or by hand; Pavement 4 is laid with asphalt or concrete according to the specification.

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Abstract

A geotechnical bag platform back roadbed and its application method, which is composed of a geotechnical bag (1), a bridge and culvert passage (2), a platform back roadbed foundation pit (3), and a road surface (4). ) foundation pits (3) on the back of the abutment are stacked layer by layer in a criss-cross pattern and closely combined with the asphalt or concrete laid on the road surface (4). The invention is simple, practical, economical and economical and has significant social and economic benefits.

Description

technical field [0001] The invention relates to an improvement of a platform back roadbed and a method, in particular to an improvement of a geotechnical bag platform back roadbed and a method. Background technique [0002] Between bridges, culverts, passages and other structures that cross the highway and the subgrade fill on the back of the structure platform, the uneven rigidity often results in stepped uneven settlement, causing the phenomenon of "bridge head jumping". At present, the roadbed filling on the back of the geonet-reinforced structure is effective in reducing the uneven settlement between the structure and the roadbed. However, due to the narrow construction space on the back of the structure, the backfill is difficult to compact and compact. Therefore, Even if the geonet reinforcement is used, it cannot provide sufficient bearing capacity and effectively reduce the settlement of the backfill. Only the soil foundation has sufficient bearing capacity, and unde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/00E01C3/06E01D21/00E01F5/00E02D17/18
Inventor 刘斯宏胡晓平
Owner 刘斯宏
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