Experimental study on dynamic properties of soil modified by superpolymer

Li Yufong

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Experimental study on dynamic properties of soil modified by superpolymer

更新时间：2026-06-25

- Experimental study on dynamic properties of soil modified by superpolymer
- Vol. 21, Issue 2, (2000)
- 作者机构：
  
  重庆甲多公路设计咨询有限公司 ,重庆 400039) (西南交通大学地质工程系,四川,成都,610031
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU472.34
- Online First：12 December 2016，
  
  Published：2000
- 稿件说明：
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Li Yufong. Experimental study on dynamic properties of soil modified by superpolymer[J]. 2000, 21(2).
DOI：

Li Yufong. Experimental study on dynamic properties of soil modified by superpolymer[J]. 2000, 21(2). DOI：

摘要

翻浆冒泥是铁路路基主要病害之一。由于翻浆冒泥造成基床的软化和道碴板结引起道床整体弹性的降低

直接影响列车安全运营。实践证明用化学灌浆方法整治这种病害可取得良好效果。为评价选用的有机高分子浆液对路基基床上的改性效果

模拟现场土性条件、应力条件、列车循环动力条件和排水条件

进行了室内循环动三轴试验。试验结果表明

有机高分子浆液改性土动强度显著提高

动力特性明显改善。改性效果在工程实践中得到验证。

Abstract

Mud boil

one of the main railway roadbed diseases

has a direct effect on the safe run of trains

because it may cause the decline of roadbed elasticity through softening of bed and hardening of ballast. It is proved practically that chemical grouting can do with it. For evaluating the positive role of the selected super polymer to the soil in roadbed

this paper operates the dynamic triaxial test by simulating the proper ties of soil

the static stress

the cyclic dynamic stress and drainage condition in site. The results show that dynamic strength of the modified soil by super polymer increases in a considerable degree. The dynamic properties also get a conspicuous reformation. Subsequently the positiverole is affirmed in engineering practice.

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