EPS light embankment structure and construction method supported by reinforced gravel piles in soft soil area

Abstract

The invention belongs to the field of subgrade engineering, and relates to an EPS light embankment structure supported by reinforced gravel piles in soft soil areas and a construction method, including two-way reinforced gravel piles, drainage ditch, geotextile cushion, high-strength load transfer platform, waterproof Coiled material, edge-wrapped soil, EPS foam block, pavement structure layer; two-way reinforced gravel piles are arranged in groups of piles, distributed in a square, and longitudinally arranged in soft soil foundation; the top of two-way reinforced gravel piles is laid sequentially from bottom to top Geotextile cushion, high-strength load transfer platform, waterproof membrane and the second layer of high-strength load transfer platform are filled with EPS foam blocks in layers, and finally the pavement structure layer is laid. The invention improves the strength of the foundation, uses the EPS foam block as the embankment filler, significantly reduces the self-weight of the embankment and the overlying load of the foundation soil, and significantly enhances the overall stability of the structure through the high-strength load transfer platform, which can effectively solve the problem of soft The embankment built on the soil foundation has the disadvantages of large foundation settlement and poor stability.

Description

technical field [0001] The invention belongs to the field of roadbed engineering, and relates to an EPS light embankment structure supported by reinforced gravel piles in soft soil areas and a construction method. Background technique [0002] When building an embankment on a soft soil foundation, it is necessary to consider the influence of the overlying load on the foundation settlement and uneven settlement. The usual method is to treat the foundation to improve the bearing capacity of the foundation; the reinforced gravel pile is a comparative Effective soft soil foundation reinforcement method, simple construction, low cost, can also speed up construction on the basis of ensuring a certain bearing capacity; for soft soil foundations with poor geological conditions, reinforced gravel piles can be reinforced to a certain extent Improve the strength of the foundation, but its reinforcement depth and reinforcement strength have certain limitations. Under the embankment load...

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Problems solved by technology

[0002] When building an embankment on a soft soil foundation, it is necessary to consider the influence of the overlying load on the foundation settlement and uneven settlement. The usual method is to treat the foundation to improve the bearing capacity of the foundation; the reinforced gravel pile is a comparative Effective soft soil foundation reinforcement method, simple construction, low cost, can also speed up construction on the basis of ensuring a certain bearing capacity; for soft soil foundations with poor geological conditions, reinforced gravel piles can be reinforced to a certain extent Improve the strength of the foundation, but its reinforcement depth and reinforcement strength have certain limitations. Under the embankment load, the foundation will also produce certain settlement and instability deformation, especially for high-fill embankment construction, often resulting in large settlement and poor stability. Wait for the consequences

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