Pile-supported embankment multi-layer reinforced body reinforcing technology based on numerical simulation

Abstract

The invention discloses a pile-supported embankment multi-layer reinforced body reinforcing technology based on numerical simulation, which specifically comprises the following steps of: establishing a multi-layer reinforced pile-supported embankment numerical model by utilizing finite element software, and calculating and analyzing a working mechanism of a multi-layer reinforced body; and based on the stress-strain analysis result of each layer of reinforced body in the reinforced cushion layer, optimizing the strength grade of each layer of reinforced body in the reinforced cushion layer, and guiding the refined design of the pile-supported reinforced embankment. The cooperative bearing mechanism of all the layers of reinforced bodies in the reinforced cushion layer is deeply researched, it can be guaranteed that the strength of all the layers of reinforced bodies is fully exerted, vertical and horizontal displacement of the embankment is effectively controlled, on one hand, the long-term stability of the pile-supported reinforced embankment can be maintained, and on the other hand, material waste caused by unreasonable design of the multiple layers of reinforced bodies can be avoided.

Description

technical field [0001] The invention relates to the technical field of computer-aided design of roadbed engineering, and belongs to a numerical simulation-based reinforcement technology for multi-layered reinforced bodies of pile-supported embankments. Background technique [0002] In the pile-supported reinforced embankment, due to the large difference in stiffness between the pile body and the soft soil between the piles, under the action of the embankment's own weight, the embankment filling on the upper part of the soft soil foundation between the piles will produce The large differential settlement causes the horizontal reinforcement laid at the bottom of the embankment to bend downward, resulting in tensile stress. At the same time, the lateral thrust of the embankment filling on the upper part of the soft soil foundation causes the horizontal reinforcement to produce a restraining force that limits the lateral deformation of the embankment, and a part of the embankmen...

AI Technical Summary

Problems solved by technology

However, the current design of multi-layer reinforced body does not take into account the differences in the stress and deformation characteristics of each layer of reinforced body, resulting in the insufficient strength of the upper layer of reinforced body and insufficient strength of the lower layer of reinforced body

Therefore, on the one hand, this causes a waste of reinforcement materials, and on the other hand, it is not conducive to controlling the settlement and horizontal deformation of the embankment

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