Analysis of ground coefficient and modulus of deformation of gobi area filler in high-speed railway subgrade

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Analysis of ground coefficient and modulus of deformation of gobi area filler in high-speed railway subgrade

更新时间：2026-06-25

- Analysis of ground coefficient and modulus of deformation of gobi area filler in high-speed railway subgrade
- Vol. 32, Issue 7, (2011)
- 作者机构：
  
  兰州交通大学土木工程学院,兰州,730070
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU470
- Online First：30 June 2011，
  
  Published：2011
- 稿件说明：
移动端阅览
YANG You-hai, HUANG Da-wei, LAI Guo-quan, et al. Analysis of ground coefficient and modulus of deformation of gobi area filler in high-speed railway subgrade[J]. 2011, 32(7).
DOI：

YANG You-hai, HUANG Da-wei, LAI Guo-quan, et al. Analysis of ground coefficient and modulus of deformation of gobi area filler in high-speed railway subgrade[J]. 2011, 32(7). DOI：

摘要

以兰新铁路第二双线路基试验段戈壁填料现场填筑试验为依据，分析了路基压实指标K30与Ev2的区别与联系；总结了4个试验工点K30与Ev2及Ev1变形曲线特性，并对地基系数K30与变形模量Ev的相关性进行了分析。结合室内土工试验，对影响K30与Ev2的因素进行总结。结果表明：填土的密实程度是影响K30与Ev1及Ev2/Ev1的主要因素；填料的性质是影响Ev2的主要因素，对 Ev2/Ev1也有较大影响；Ev2为填料的特征参数，反映了路基的刚度；K30为填土压实质量控制指标，K30与Ev1的相关性较好，与Ev2的相关性相对较差，K30与Ev1及与Ev2的相关性的好坏还与填料的性质有关，检测指标越离散，相关性越差

Abstract

Based on the gobi-filler test of testing for subgrade on the second double line of Lan-Xin Railway

the difference and relation between the ground coefficient K30 and the static modulus of deformation Ev2 were analyzed; and the curve feature of ground coefficient K30 and deformation modulus Ev of four different kinds of fillers were summed up; also

the correlation between K30 and Ev were analyzed. With more information of the laboratory test

the acting factors for K30 and Ev2 were summed up. The results show that: ① The compaction quality of the soil is the main factor for K30

Ev1 and Ev2/Ev1. ② The nature of the filler is the main acting factor for Ev2 and it also has a influence on Ev2/Ev1. ③ The Ev2 is the characteristic parameter for the filler; it reflect the rigidity of the subgrade. ④ The K30 is the controlling index for compaction quality. ⑤ The correlation between K30 and Ev1 is closer

while K30 and Ev2 is slight; and different kinds of fillers have different correlations between K30 and Ev; the results reveal that the correlation is little with the checking indices become more disperse.

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