Analytical Solution for Consolidation of Composite Ground with Stiffened Deep Cement Mixing Piles under Rigid Foundation

杨涛; 唐凤

doi:10.13409/j.cnki.jdpme.2016.04.001

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Analytical Solution for Consolidation of Composite Ground with Stiffened Deep Cement Mixing Piles under Rigid Foundation

更新时间：2025-12-11

- Analytical Solution for Consolidation of Composite Ground with Stiffened Deep Cement Mixing Piles under Rigid Foundation
- Vol. 36, Issue 4, Pages: 505-511(2016)
- 作者机构：
- 作者简介：
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- DOI：10.13409/j.cnki.jdpme.2016.04.001
  CLC： U473.1
- Published：2016
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[1]杨涛,唐凤.刚性基础下劲性搅拌桩复合地基固结解析解[J].防灾减灾工程学报,2016,36(04):505-511.

杨涛, 唐凤. Analytical Solution for Consolidation of Composite Ground with Stiffened Deep Cement Mixing Piles under Rigid Foundation[J]. 2016, 36(4): 505-511.
[1]杨涛,唐凤.刚性基础下劲性搅拌桩复合地基固结解析解[J].防灾减灾工程学报,2016,36(04):505-511. DOI： 10.13409/j.cnki.jdpme.2016.04.001.

杨涛, 唐凤. Analytical Solution for Consolidation of Composite Ground with Stiffened Deep Cement Mixing Piles under Rigid Foundation[J]. 2016, 36(4): 505-511. DOI： 10.13409/j.cnki.jdpme.2016.04.001.

摘要

根据轴对称固结模型

推导出瞬时加荷刚性基础下劲性搅拌桩复合地基的固结方程

基于双层地基一维固结理论建立了固结解析解。通过与有限元法计算的固结度进行比较

证明了解析解的正确性和有效性。利用建立的固结解析解对劲性搅拌桩复合地基的固结特性进行了分析。结果表明

劲性搅拌桩复合地基的固结速率远大于传统的水泥搅拌桩复合地基

它随芯桩芯长比、劲性搅拌桩置换率和水泥搅拌桩外壳压缩模量的增加而增大

芯桩弹性模量和截面含芯率对劲性搅拌桩复合地基固结速率的影响不大。

Abstract

Based on the axisymmetric consolidation model

the equations governing the consolidation of composite ground with SDCM piles were derived under rigid foundation.The analytical solutions were then developed for the consolidation of the composite ground under an instant loading according to the 1-D consolidation theory of a double-layer ground.In order to verify the correctness and accuracy of the present solutions

comparison of the calculated consolidation rate of the composite ground by the proposed solution and the finite element method was made.The consolidation behavior of this new kind of composite ground was investigated using the proposed analytical solution.The results show that the consolidation rate of the composite ground with SDCM piles is greater than that of the conventional composite ground with DCM piles.It increases with the increasing of the length ratio of the concrete core pile to SDCM pile

the area replacement ratio and the compressive modulus of DCM pile socket.While the elasticity modulus of the core pile and its area core ratio have insignificant influence on consolidation rate of the SDCM pile reinforced soft ground.

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references

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