Analysis of Unsaturated Soil Foundation Settlement Characteristics Based on Centrifuge Model Test

邹祖银; 蒋关鲁; 朱占元

doi:10.13409/j.cnki.jdpme.2014.01.010

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Analysis of Unsaturated Soil Foundation Settlement Characteristics Based on Centrifuge Model Test

更新时间：2025-12-11

- Analysis of Unsaturated Soil Foundation Settlement Characteristics Based on Centrifuge Model Test
- Vol. 34, Issue 1, Pages: 67-72(2014)
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- DOI：10.13409/j.cnki.jdpme.2014.01.010
  CLC： 213.14
- Published：2014
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[1]邹祖银,蒋关鲁,朱占元.基于离心机模型试验的非饱和土地基沉降特征分析[J].防灾减灾工程学报,2014,34(01):67-72.

邹祖银, 蒋关鲁, 朱占元. Analysis of Unsaturated Soil Foundation Settlement Characteristics Based on Centrifuge Model Test[J]. 2014, 34(1): 67-72.
[1]邹祖银,蒋关鲁,朱占元.基于离心机模型试验的非饱和土地基沉降特征分析[J].防灾减灾工程学报,2014,34(01):67-72. DOI： 10.13409/j.cnki.jdpme.2014.01.010.

邹祖银, 蒋关鲁, 朱占元. Analysis of Unsaturated Soil Foundation Settlement Characteristics Based on Centrifuge Model Test[J]. 2014, 34(1): 67-72. DOI： 10.13409/j.cnki.jdpme.2014.01.010.

摘要

非饱和土结构复杂

沉降理论计算还不完善

导致地基沉降的计算值与沉降实测值往往有较大的差异。地基沉降是高速铁路客运专线路基的主要控制因素之一

通过离心机模型试验

对高速铁路非饱和土地基沉降特征进行分析

获得地基的荷载—沉降—时间关系曲线。研究结果表明:非饱和土地基在路基填筑期沉降完成较快

施工期可完成总沉降的75%

经过56个月短期放置可完成总沉降的90%左右

其工后沉降满足无砟轨道沉降控制要求

该研究结果可为非饱和土沉降理论分析提供参考。

Abstract

The theory about the unsaturated soil is imperfect

and the settlement calculating method for the unsaturated soil is not mature because of the complexity of the unsaturated soil

foundation settlement calculation value and the measured values tend to have large difference so foundation settlement has become one of the main control factors for high-speed railway subgrade of passenger train special line.For unsaturated soil settlement problem

we analysis the characteristics of unsaturated soil foundation settlement of high-speed railway and obtain the load-settlement-time curve through centrifuge model test.Research results show that the unsaturated soil foundation has faster settlement in subgrade filling period

which complete 75% of the total settlement during the construction and after 5-6months short-term placement can amount to about 90% of the total settlement.The post-construction settlement can satisfy control requirements. In this paper

the results can provide a test basis for the theory of unsaturated soil settlement calculation.

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references

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胶济客专非饱和土地基沉降特性试验研究 [J]. 姚裕春,李安洪,蒋关鲁. 铁道工程学报 . 2012(05)

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