土工基础

›› 2018, Vol. 32 ›› Issue (1): 78-80.

• 工程实录 • 上一篇    下一篇

砂与粉煤灰改良桂林红粘土水土特性研究

朱寿增1,2，刘会强1,2，梁埔源2   

  1. （1.桂林理工大学 土木与工程学院，广西桂林 541004；2.广西岩土力学与工程重点实验室，广西桂林 541004）
  • 收稿日期:2017-02-24 修回日期:2017-03-14 出版日期:2018-02-20 发布日期:2018-03-01
  • 作者简介:朱寿增（1963-），男，副教授，研究方向为地基基础工程，地质灾害防治，环境岩土工程与检测等。

Laboratory Investigations of Guilin Red Clay Improved with Sand and Fly-ash

ZHU Shouzeng1，2， LIU Huiqiang1，2， LIANG Puyuan2   

  1. (1.College of Civil Engineering and Architecture, Guilin University of Technology, Guilin 541004;
    2.Guangxi Key Laboratory of Geomechanics and Geotechnical Engineering, Guilin 541004)
  • Received:2017-02-24 Revised:2017-03-14 Online:2018-02-20 Published:2018-03-01

摘要： 桂林红黏土的物理性质、矿物成分具有其独特性，在改善其工程性质时使用掺砂与粉煤灰混合材料，为了研究砂与粉煤灰掺量对桂林红黏土的改良效果，通过对界限含水率实验、直接剪切实验、击实实验等室内实验的指标值的分析，得到不同掺量对红黏土的相关指标的变化关系，找出改良效果最好的掺量比例为砂20%、粉煤灰10%。

关键词: 红黏土, 砂, 粉煤灰, 改良

Abstract: Both physical properties and mineral composition of Guilin red clays are unique. To investigation the effect of the sand and flayash mixing on the Guilin red clay improvement, a series of laboratory tests, such as Atterberg limits, direct shear tests and Proctor tests, were performed on soils mixed with various amounts of sand and flyashes. It is concluded that the optimum sand content is 20% and flyash content is 10%.

Key words: red clay, sand, flyash, soil improvement