• 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 >Geotechnical Properties of Plastic Marl Contaminated with Diesel
【24h】

Geotechnical Properties of Plastic Marl Contaminated with Diesel

机译：柴油污染的塑料泥灰岩的岩土特性

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

The reported study was conducted to assess the geotechnical properties of plastic marl contaminated with diesel. The geotechnical properties of the uncontaminated soil, including gradation, Atterberg limits, compaction characteristics, angle of internal friction, cohesion and unconfined compressive strength (q(u)), were initially evaluated. Thereafter, the soil was contaminated with four dosages of diesel (3, 6, 9 and 12% by weight of the dry soil) and the changes in the geotechnical properties, due to the contamination, were assessed. The liquid limit increased with an increase in the contamination level of up to 9%. A further increase in the contamination level decreased the liquid limit. A similar trend was noted in the plasticity index. However, no significant changes were noted in the compaction characteristics, namely the maximum dry density and optimum moisture content. A large increase in the unconfined strength was measured in the soil contaminated with 3% diesel. However, the strength decreased up to 9% contamination and thereafter an increase in this strength was noted. A similar trend was noted in the cohesion value. This trend in the unconfined compressive strength and cohesion may be ascribed to the agglomeration of soil particles at low contamination levels, while the lubrication effect dominates at high contamination levels, as noted in the scanning electron micrographs. Energy-dispersive X-ray spectroscopy analysis was carried out to measure the elemental composition of the contaminated soil, and a high percentage of carbon was observed as an indication of the presence of hydrocarbons.
机译：进行了报道的研究，以评估被柴油污染的塑料泥灰岩的岩土性能。最初评估了未污染土壤的土工特性，包括等级，阿特伯格极限，压实特性，内摩擦角，内聚力和无限制抗压强度（q（u））。此后，土壤被四种剂量的柴油所污染（分别占干土壤重量的3％，6％，9％和12％），并评估了由于污染造成的岩土性能的变化。液体极限随着污染水平的增加而增加，最高可达9％。污染水平的进一步提高降低了液体极限。在可塑性指数中发现了类似的趋势。但是，在压实特性方面，即最大干密度和最佳水分含量方面，没有发现明显变化。在受3％柴油污染的土壤中测得的无约束强度大大增加。但是，强度降低到9％的污染程度，此后强度有所提高。内聚值也有类似的趋势。无限制抗压强度和内聚力的这种趋势可能归因于低污染水平下土壤颗粒的团聚，而润滑效果在高污染水平下占主导地位，如扫描电子显微照片中所述。进行了能量色散X射线光谱分析，以测量受污染土壤的元素组成，并观察到高百分比的碳表明存在碳氢化合物。

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