土工基础

›› 2012, Vol. 26 ›› Issue (1): 56-59.

• 工程实录 • 上一篇    下一篇

硬壳层地基强度特性的室内试验研究

 樊友杰   

  1. （中铁第四勘察设计院集团有限公司，武汉 430063）
  • 收稿日期:2011-05-25 出版日期:2012-02-20 发布日期:2012-03-23
  • 作者简介:樊友杰，男，湖北潜江人，硕士研究生，助理工程师。

Laboratory Studies on the Strength Characteristics of the Crust above Soft Soils

FAN Youjie   

  1. (China Railway Siyuan Survey and Design Group Co. LTD, Hubei, Wuhan 430063）
  • Received:2011-05-25 Online:2012-02-20 Published:2012-03-23

摘要： 以工程项目为依托，采取原状土样进行室内常规试验及CU三轴试验，得出硬壳层及下部软土的物理力学性质指标的差异性，并进行分析，为工程实践中硬壳层的利用及研究提供参考。

关键词: 硬壳层, 下部软土, 常规试验, CU三轴试验, 物理力学性质指标

Abstract: Extensive conventional laboratory soil index tests and consolidatedundrained (CU) triaxial shear tests on undisturbed soil samples were conducted from various projects. These undisturbed soil samples were collected from the overconsolidated crust layer as well as from the underlying soft soil stratum. Both physical and mechanical properties of the crust layer and the soft stratum are compared in this paper. The comparisons lead to taking the advantage of the upper overconsolidated crust layer in practical engineering projects.

Key words: over consolidated crust, underlying soft soils, conventional laboratory tests, consolidated undrained triaxial shear tests, soil index properties