...
首页> 外文期刊>Computers and Geotechnics >Discrete element method simulations of bio-cemented sands
【24h】

Discrete element method simulations of bio-cemented sands

机译:生物胶结砂的离散元方法模拟

获取原文
获取原文并翻译 | 示例
           

摘要

Microbially induced calcite precipitation (MICP) has emerged as a novel soil improvement method. In this paper, 3-D discrete element method (DEM) simulations are used to explore the behavior of MICPcemented sands. Comparisons of the macro-scale response of numerical and physical specimens are made. Microstructure analyses indicate a shear band formed in the numerical specimens, consistent with physical experiments. The bond breakage pattern in numerical specimens is explored and compared to observed measurements from physical specimens. The relationship between dilatancy and stress strain behavior is evaluated. The results indicate DEM is an effective technique to capture the mechanical behavior of MICP-cemented sand. (C) 2016 Elsevier Ltd. All rights reserved.
机译:微生物诱导的方解石沉淀(MICP)已成为一种新型的土壤改良方法。在本文中,使用3-D离散元方法(DEM)模拟来探索MICP水泥砂的行为。比较了数值样本和物理样本的宏观响应。微观结构分析表明,在数值样本中形成了一个剪切带,与物理实验一致。探索了数字样本中的键断裂模式,并将其与从物理样本中观察到的测量结果进行了比较。评估了剪胀性和应力应变行为之间的关系。结果表明,DEM是捕获MICP水泥砂土力学行为的有效技术。 (C)2016 Elsevier Ltd.保留所有权利。

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