土工基础

›› 2016, Vol. 30 ›› Issue (5): 608-610.

• 工程实录 • 上一篇    下一篇

高液限过湿土的改性试验研究

陈雪峰，孔余江，刘龙章，龙桂宇，廖 沙   

  1. （贵州省公路工程集团有限公司，贵阳 550081）
  • 收稿日期:2015-12-02 修回日期:2015-12-22 出版日期:2016-10-20 发布日期:2016-10-31
  • 作者简介:陈雪峰（1984-），男，工程师，研究方向为土质改良及工程应用。

Modification of Wet High Liquid Limit Cohesive Soils

CHEN Xuefeng, KONG Yujiang, LIU Longzhang, LONG Guiyu, LIAO Sha   

  1. (Guizhou Highway Engineering Group Co., Ltd., Guiyang 550081)
  • Received:2015-12-02 Revised:2015-12-22 Online:2016-10-20 Published:2016-10-31

摘要： 为解决盘兴高速公路沿线路基挖方产生的大量高液限过湿土处理问题，以盘兴高速公路第三合同段的高液限土为研究对象，通过添加不同比例的胶凝材料进行颗粒分析试验、液塑限试验、击实试验和室内加州承载比（CBR）试验分析，依据不同掺量和压实度条件下各控制参数的变化规律确定最优掺量比，在最优掺量条件下，进一步分析施工控制参数，即含水率、压实度、击实功的变化规律，获得水稳定性和强度兼顾的施工参数组合，达到了预期的效果。

关键词: 高液限土, 改性, 试验研究

Abstract: In order to effectively utilize the waste wet soils with high liquid limit in PanXin Highway Project, this paper presents the experimental study results of the mixture of wet soils and various cementitious materials. These experimental studies included the grain size distribution analysis of the mixtures; Atterberg Limits, Proctor Test as well as California Bearing Ratio tests. The optimum cementitious material contents under different degrees of compaction are obtained and their construction parameters are also studied. Under the optimum mix content, the moisture content, degree of compaction, compaction energy relationships that can reaching the balance between the environmental stability and the mixture strength are obtained.

Key words: High Liquid Limit Soils, Soil Modifications, Experimental Studies