Pile supported reinforced embankment pile-soil stress determining method

A reinforced embankment and a technology to determine the method, which is applied in the test of roads, roads, and foundation structures, etc., can solve the problems of not considering the joint effect of the reinforcement body setting effect, the large error of the calculation result of the pile-soil stress, etc., and achieve a simple calculation method Convenience, easy promotion and application, and the effect of error reduction

Active Publication Date: 2018-11-20
YANGZHOU UNIV
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Problems solved by technology

[0004] Therefore, the problem existing in the prior art is that the calculation result of the pile-soil stress of the pile-supported reinforced embankment has a large error due to the failure to consider the setting effect of the reinforcement body and the joint action of the reinforcement and the soil.

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  • Pile supported reinforced embankment pile-soil stress determining method
  • Pile supported reinforced embankment pile-soil stress determining method
  • Pile supported reinforced embankment pile-soil stress determining method

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Embodiment Construction

[0021] Such as figure 1 Shown, the method for determining the pile-soil stress of the pile-supported reinforced embankment of the present invention comprises the following steps:

[0022] (10) Parameter acquisition: obtain the physical parameters of the pile-supported reinforced embankment, including pile length, pile distance, pile cap size, height of embankment filling, position of reinforcement grid, external load on the top surface of embankment, etc.;

[0023] (20) Calculation of additional pressure at the top of the pile: based on the failure mode of the reinforced embankment, and according to the setting position of the reinforcement body, the additional pressure at the top of the pile is calculated;

[0024] The instability and failure mode of the reinforced embankment is based on the PFC numerical analysis to establish an overall analysis model for each element of the pile-supported reinforced embankment (filling soil-reinforcement body-pile-embankment), in which the ...

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Abstract

The invention discloses a pile supported reinforced embankment pile-soil stress determining method. The method comprises the following steps that (10) parameters are obtained, wherein physical parameters of a pile supported reinforced embankment are obtained and comprise the pile length, the pile distance, the pile cap size, the embankment earth filling height, the reinforced body grating position, the embankment top face additional load and the like; (20) the pile top additional pressure is calculated, wherein based on the reinforced embankment buckling failure mode, according to the reinforced body arranging position, the pile top additional pressure is calculated; (30) the pile top distributed load is calculated, wherein according to the pile top additional pressure and the pile top distributed load in a non-reinforced embankment, the pile top distributed load is calculated; and (40) earth-among-pile counter-force calculation is carried out, wherein according to the embankment totalload and the pile top distributed load, the earth-among-pile counter force is calculation. According to the pile supported reinforced embankment pile-soil stress determining method, based on the embankment failure mode, a reinforced body arranging manner is considered in the meantime, and the result is more accurate.

Description

technical field [0001] The invention belongs to the technical field of road engineering, in particular to a method for determining the pile-soil stress of a pile-supported reinforced embankment based on an embankment failure mode and considering the setting mode of a reinforced body, and the result is more accurate. Background technique [0002] Pile-supported reinforced embankments are usually composed of soil, piles, horizontal reinforcement, pile caps and embankment fill. When a pile-supported reinforced embankment is used, part of the embankment load is directly transferred to the piles through the soil arch effect, and then transferred to the hard underlying layer through the piles; the other part of the load is transferred to The top of the pile is transmitted by the pile to the hard underlying layer. [0003] At present, most of the simplified calculation methods for pile-supported reinforced embankments separate the soil arch effect and the tension film effect of th...

Claims

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Application Information

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IPC IPC(8): E02D27/16E02D33/00E01C3/04
CPCE01C3/04E02D27/16E02D33/00
Inventor 许朝阳李章彦杨贺张贺许宁
Owner YANGZHOU UNIV
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