• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Rock mechanics for resources, energy and environment >Physical modeling and simulation of slope failure by means of centrifuge acceleration
【24h】

Physical modeling and simulation of slope failure by means of centrifuge acceleration

机译：离心机加速作用下边坡破坏的物理建模与仿真

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

Slope stability in open pit mines is an important issue. Most open pit coal mines are locatedrnin Kalimantan in which rainfall is very high and as such so is the probability of slope failure. It has been wellrnaccepted that slope failure risk consists of probability times consequence of the slope failure. In order to have arnstudy on the consequences of slope failure as a function of various geotechnical parameters, a laboratory scalerninvestigation was conducted. A centrifuge with a diameter of 3.65 m, a load capacity of 3 kN and a maximumrnrotation of 70 rpm was designed and built in house by the Laboratory of Geomechanics & Mining Equipmentrnof ITB in Indonesia. Dimensional analysis was used to scale down the model from a real slope condition inrnan open pit coal mine. The material used in this study is consolidated clayey sand with slope heights of 10 cm,rnslope angles of 45?, 60? and 75?; the centrifugal acceleration were 0.15g, 0.23g, 0.33g; 0.46g, 0.59g, 0.75g, andrn0.93g. By running the centrifuge at different levels of rpm and slope dimensions, the volume and mode of thernslope failures can be obtained and can be used for the input data for assessing risk analysis of slope stability inrnan open pit coal mine. In order to confirm the results of the physical modeling tests, numerical modeling usingrnthe limit equilibrium method and direct monitoring in the field are also carried out
机译：露天矿的边坡稳定性是一个重要问题。大多数露天煤矿位于加里曼丹省，那里的降雨非常多，因此发生边坡破坏的可能性也很高。公认的是，边坡破坏的风险由边坡破坏的概率乘以后果。为了对边坡破坏的后果作为各种岩土参数的函数进行研究，进行了实验室规模的研究。印尼地质力学与采矿设备研究所ITB实验室设计并建造了直径为3.65 m，最大负载能力为3 kN，最大转速为70 rpm的离心机。尺寸分析被用于从真实倾斜条件下的裸露露天煤矿按比例缩小模型。本研究中使用的材料是固结的粘土砂，其坡度为10 cm，坡角为45°，60°。和75？离心加速度分别为0.15g，0.23g，0.33g； 0.46g，0.59g，0.75g和0.93g。通过在不同的转速和坡度尺寸下运行离心机，可以获得斜坡失稳的数量和模式，并将其用作评估露天矿边坡稳定性风险分析的输入数据。为了确认物理建模测试的结果，还使用极限平衡法进行了数值建模并在现场进行了直接监测

著录项

  • 来源
  • 会议地点 Wroclaw(PL)
  • 作者

    S. Kramadibrata; R.K.Wattimena; M.A. Azizi; Y.Wicaksana; I.D. Sidi;

  • 作者单位

    Mining Engineering Department, Institut Teknologi Bandung, Indonesia;

    Mining Engineering Department, Institut Teknologi Bandung, Indonesia;

    Mining Engineering Department, Institut Teknologi Bandung, Indonesia;

    Mining Engineering Department, Institut Teknologi Bandung, Indonesia;

    Civil Engineering Department, Institut Teknologi Bandung, Indonesia;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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