• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Arabian Journal for Science and Engineering >Shrinkage Limit Studies from Moisture Content: Electrical Resistivity Relationships of Soils
【24h】

Shrinkage Limit Studies from Moisture Content: Electrical Resistivity Relationships of Soils

机译：水分含量的收缩限制研究：土壤电阻率关系

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

At the shrinkage limit, the soil is just fully saturated. Shrinkage limit of soils can be perceived as a point of inflection ineither direction. While decreasing the water content, from its liquid state to the solid state, a point of inflection is reached(shrinkage limit) when further reduction in water content will not cause a reduction in the volume of the soil mass. Whileincreasing the water content, from a partially saturated state to a fully saturated state and beyond, the electrical resistivityreduces, and from the point of shrinkage limit onwards, there is no further appreciable reduction in electrical resistivity.Earlier studies have proven that shrinkage limit is not governed by plasticity characteristics of the soil. Shrinkage limit isprimarily a result of the packing phenomenon governed by the grain size distribution of the soil. This research investigatesthe relationship between moisture contents and electrical resistivity of well compacted/packed soils. It is shown that electricalresistivity measurements (ER–moisture content profile) of a well packed soil, in an electrical resistivity box, can be a usefultool for predicting the shrinkage limit of the soil. A very good agreement is obtained between Shrinkage limit assessed fromstandard shrinkage limit test and resistivity–water content profile. The assessment is proven to be valid for contaminatedsoils too, where in the Atterberg limits get altered.
机译：在收缩极限下，土壤刚刚完全饱和。可以认为土壤的收缩极限作为拐点任何一个方向。虽然从其液态降低到固态的含水量，但达到了拐点（收缩极限）进一步减少水含量不会导致土壤质量的减少。尽管将水含量从部分饱和状态增加到完全饱和的状态，电阻率减少，从收缩限值开始，电阻率没有进一步明显降低。先前的研究证明，收缩限制不受土壤的可塑性特征的管辖。收缩限制是主要是由土壤粒度分布管辖的包装现象的结果。这项研究调查了水分含量与电阻率的良好压实/包装土的关系。表明电气在电阻率箱中，电阻率箱的电阻率测量（ER水分含量曲线）可以是一种有用的用于预测土壤收缩极限的工具。在评估的收缩限额之间获得了非常好的协议标准收缩限制测试和电阻率 - 水含量概况。评估被证明是有效的污染土壤也是，在阿特伯格限制的地方改变了。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号