Modelling vibrated stone columns in soft clay

IF 0.3 Q4 ENGINEERING, GEOLOGICAL
D. Mckelvey, V. Sivakumar, A. Bell, J. Graham
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引用次数: 183

Abstract

The vibrated stone column technique is an economical and environmentally friendly process that treats weak ground to enable it to withstand low to moderate loading conditions. The performance of the treated ground depends on various parameters such as the strengths of the in-situ and backfill materials, and the spacing, length and diameter of the columns. In practice, vibrated stone columns are frequently used for settlement control. Studies have shown that columns can fail by bulging, bending, punching or shearing. These failure mechanisms are examined in this paper. The study involved a series of laboratory model tests on a consolidated clay bed. The tests were carried out using two different materials: (a) transparent material with ‘clay like’ properties, and (b) speswhite kaolin. The tests on the transparent material have, probably for the first time, permitted visual examination of deforming granular columns during loading. They have shown that bulging was significant in long columns, whereas punchin...
在软粘土中模拟振动石柱
振动石柱技术是一种既经济又环保的工艺,它处理软弱的地面,使其能够承受低到中等的荷载条件。处理后地面的性能取决于各种参数,如原位和回填材料的强度,以及柱的间距,长度和直径。在实践中,振动石柱常用于沉降控制。研究表明,柱体会因胀形、弯曲、冲孔或剪切而失效。本文对这些失效机制进行了研究。该研究涉及在固结粘土层上进行的一系列实验室模型试验。试验使用了两种不同的材料:(a)具有“粘土样”特性的透明材料,以及(b)白色高岭土。对透明材料的测试,可能是第一次,允许视觉检查变形颗粒柱在加载过程中。他们已经表明,在长柱中,突起是很重要的,而穿孔……
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来源期刊
Geotechnical Engineering
Geotechnical Engineering ENGINEERING, GEOLOGICAL-
CiteScore
0.50
自引率
0.00%
发文量
0
期刊介绍: The objectives of the Association shall be the promotion of co-operation among geotechnical societies in SE Asia; and the assistance to member societies who have limited number of members. Now there is only one combined web titled: AGSSEA-SEAGS. SEAGS & AGSSEA encourage the submission of scholarly and practice-oriented articles to its journal. The journal is published quarterly. Both sponsors of the journal, the Southeast Asian Geotechnical Society and the Association of Geotechnical Societies in Southeast Asia, promote the ideals and goals of the International Society of Soil Mechanics and Geotechhnical Engineering in fostering communications, developing insights and enabling the advancement of the geotechnical engineering discipline.
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