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SHRINK-SWELL INDEX DATABASE FOR MELBOURNE

机译：墨尔本收缩膨胀指数数据库

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摘要

A series of laboratory tests have been performed, including shrink-swell, liquid limit, plastic limit, linear shrinkage and soil suction on soil samples collected from 47 different field sites across 37 suburbs of Melbourne. The sites cover a wide range of soils and different geological conditions and geographical settings. The results of the laboratory tests were used to establish a database of tested shrink-swell index (I_(ss)) values. An interactive map showing the distribution and reactivity of Melbourne soils has been developed that can be used in routine practice by local engineers to assess and calibrate the shrinkage indices estimated on a visual-tactile basis. The study indicates that there is a significant variation in I_(ss) results across any particular soil type and that a blanket estimated value based on that soil type may not be entirely appropriate. Highly reactive soils are mainly present in the western and northern suburbs of Melbourne, and many of these areas have a shrink-swell index higher than 6% strain /pF. Correlations of shrink-swell index, liquid limit, plastic limit, plasticity index and linear shrinkage have also been attempted and the results show that simple index tests are not a reliable substitute for I_(ss) testing.
机译：已经进行了一系列实验室测试，包括从墨尔本37个郊区的47个不同田间场所收集的土壤样品上收缩膨胀，液体限制，塑料极限，线性收缩和土壤吸入。该地点涵盖了各种土壤和不同地质条件和地理环境。实验室测试的结果用于建立测试的收缩膨胀指数（I_（SS））值的数据库。已经开发了一个交互式地图，显示了墨尔本土壤的分布和反应性，可以通过当地工程师在常规实践中使用，以评估和校准在视觉触觉上估计的收缩索引。该研究表明，任何特定土壤类​​型的I_（SS）产生的显着变化，并且基于土壤类型的毯子估计值可能并非完全适当。高度反应性土壤主要存在于墨尔本西部和北部郊区，其中许多这些区域的收缩膨胀指数高于6％菌株/ PF。还尝试了收缩膨胀指数，液体限制，塑料极限，可塑性指数和线性收缩的相关性，结果表明，简单的指标测试不是可靠的I_（SS）测试的可靠替代品。

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  • 来源
    《Australian Geomechanics》 |2016年第3期|共16页
  • 作者

    Jie Li; Jian Zou; Peter Bayetto;

  • 作者单位

    Senior Lecturer;

    Postgraduate Student School of Civil Environmental and Chemical Engineering RMIT University;

    Managing Director FMG Engineering;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 地质力学;
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