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Optimal Design Method of Pile Bearing Reinforced Embankment on Soft Foundation

A technology of optimized design and reinforced embankment, applied in the direction of roads, roads, buildings, etc., can solve problems such as conservative, and achieve the effect of saving project cost and project expenditure

Active Publication Date: 2020-04-21
广东舍卫工程技术咨询有限公司
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing soft foundation pile-bearing reinforced embankment design and calculation theory can reliably solve the overall stability and settlement problems of soft foundation embankments, but it is relatively conservative and there is still a large room for optimization

Method used

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  • Optimal Design Method of Pile Bearing Reinforced Embankment on Soft Foundation

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Embodiment Construction

[0017] The consensus of existing research results is that the transfer of embankment load to the pile cap follows the "soil arch effect". The formation principle of the soil arch effect: the soil arch effect is produced due to local differential deformation. When the soil particles between the piles sink, the soil particles on the side of the pile cap sink less, and the latter has a propping and resisting effect on the former; Gradually extend between the piles; when it develops to a certain height, when the less subsidence soil between adjacent pile caps closes up, a soil arch is formed; the filling load above the height is transmitted to the pile cap through this soil arch. On the same plane, the settlement outside the soil arch is similar to that of the pile cap, while the settlement inside the soil arch is larger; when reaching the plane of the soil vault, the soil presents the same settlement, and the surface of the original soil vault is It is called "equal surface".

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Abstract

The invention discloses an optimization design method for a soft-foundation-pile-supported reinforced embankment. According to existing specifications, basic parameters are input, relevant information of soft foundation piles is initially selected, and the maximum allowable inter-pile clear spacing is determined; and by combining the bearing capacity of the single pile, the appropriate pile spacing and pile cap size are selected through analysis to enable the engineering cost to be the minimum, and according to finally-determined parameters, purchase on selection and engineering design of the soft foundation piles are conducted, and the engineering expense is saved.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to an optimal design method of a soft foundation pile bearing reinforced embankment. Background technique [0002] The existing soft foundation pile-bearing reinforced embankment design calculation theory can reliably solve the overall stability and settlement problems of soft foundation embankments, but it is relatively conservative and there is still a large room for optimization. For example, on the premise of meeting the performance requirements of the pile-supported reinforced embankment, can the bearing capacity of the foundation pile be improved? Can economical pile types and pile caps be used when the load on the embankment is not large? How much excavation potential does the pile spacing or net spacing have, and can it be further increased under the action of the reinforced cushion? Contents of the invention [0003] Based on this, it is necessary to provide a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C3/04
CPCE01C3/04
Inventor 张惠明黄少杰赵敏
Owner 广东舍卫工程技术咨询有限公司