State of the art in deep mixing technology. Part III:geomaterial characterization
State of the art in deep mixing technology. Part III:geomaterial characterization
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DOI：
10.1680/grim.2000.4.3.91
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
A. Porbaha;S. Shibuya;T. Kishida
中科院分区：
文献类型：
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作者：
A. Porbaha;S. Shibuya;T. Kishida
稳定地基的土工材料设计所需的主要特性是强度（压缩、剪切和拉伸）、模量、渗透性、压缩性和动态测量的特性，如不同应变水平下的剪切模量和阻尼。本文结合本系列的前几篇文章，旨在采用实验室试验方法，描述在各种荷载和环境条件下深层搅拌（DM）的岩土特性。这些测试方法包括无侧限和三轴压缩测试;直接剪切测试;使用单轴和分裂圆柱体的拉伸测试;固结和渗透性测试;以及共振柱、循环扭转简单剪切和循环三轴测试。讨论了土类、固化剂、龄期、含水量、养护温度、破坏应变、围压、规模和排水条件等因素对水泥土抗剪强度的影响，并沿着提出了水泥土抗剪强度设计值的选取原则。关于...
The main properties necessary for the geomaterial design of stabilized ground are strength (compressive, shear and tensile), modulus, permeability, compressibility and dynamically measured properties such as shear modulus and damping at different strain levels. This paper, in conjunction with the previous ones in this series, aims to characterize the geomaterial behaviour of deep mixing (DM) under various loading and environmental conditions using laboratory testing methods. These testing methods include unconfined and triaxial compression tests; direct shear tests; tensile tests using uniaxial and split cylinders; consolidation and permeability tests; and resonant-column, cyclic torsional simple shear and cyclic triaxial tests. The effects of soil type, stabilizing reagent, age, water content, curing temperature, strain at failure, confining pressure, scale and drainage condition on the shear strength of cement-treated soil are discussed along with a framework for selection of the design strength. The re...