The shrink swell test
The shrink swell test
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DOI：
10.1520/gtj12327
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发表时间：
2005
影响因子：
1.6
通讯作者：
S. Fityus;D. Cameron;P. F. Walsh
中科院分区：
文献类型：
--
作者：
S. Fityus;D. Cameron;P. F. Walsh
尽管在过去的40年里，粘土膨胀潜力的评估一直是积极研究的主题，但在世界各地的常规岩土工程实践中，其处理方法仍然不一致。本文介绍了收缩膨胀试验，这是常规使用在澳大利亚的岩土工程实践的主要方法，实验评估的膨胀潜力的粘土。测试程序及其基本假设的描述和讨论的背景下的历史发展的测试和其日常应用。它表明，收缩膨胀试验是一种简单而经济的方法来评估土壤的膨胀性，这在很大程度上是通过采用几个简化的假设，有效地规避了土壤吸力的测量。讨论了这些假设的意义，认为胀缩试验可以方便可靠地用于指导膨胀土地基的常规设计。
Although the assessment of the expansive potential of clay soils has been the subject of active research for the past 40 years, its treatment in routine geotechnical practice around the world remains inconsistent. This paper describes the shrink swell test, which is used routinely in Australian geotechnical practice as the principal method for the experimental assessment of the expansive potential of clay soils. The test procedure and its underlying assumptions are described and discussed in the context of the historical development of the test and its routine application. It is shown that the shrink swell test is a simple and economical means of assessing soil expansiveness, which is achieved largely through the adoption of several simplifying assumptions that effectively circumvent the measurement of soil suction. The significance of these assumptions is discussed, and it is concluded that the shrink swell test can be conveniently and reliably employed to guide the routine design of foundations in expansive soils.