• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Mining and Geo-Engineering >Effects of statistical distribution of joint trace length on the stability of tunnel excavated in jointed rock mass
【24h】

Effects of statistical distribution of joint trace length on the stability of tunnel excavated in jointed rock mass

机译：节理轨迹长度的统计分布对节理岩体中开挖隧道稳定性的影响

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The rock masses in a construction site of underground cavern are generally not continuous, due to the presence of discontinuities, such as bedding, joints, faults, and fractures. The performance of an underground cavern is principally ruled by the mechanical behaviors of the discontinuities in the vicinity of the cavern. During underground excavation, many surrounding rock failures have close relationship with joints. The stability study on tunnel in jointed rock mass is of importance to rock engineering, especially tunneling and underground space development. In this study, using the probability density distribution functions of negative exponential, log-normal and normal, we investigated the effect of joint trace length on the stability parameters such as stress and displacement of tunnel constructed in rock mass using UDEC (Universal Distinct Element Code). It was obtained that normal distribution function of joint trace length is more critical on the stability of tunnel, and exponential distribution function has less effect on the tunnel stability compared to the two other distribution functions.
机译：由于存在诸如层理，节理，断层和裂缝等不连续性，地下洞穴施工现场的岩体通常不连续。地下洞室的性能主要由洞室附近不连续处的力学行为决定。在地下开挖过程中，许多围岩破裂与节理有密切关系。节理岩体中隧道的稳定性研究对岩石工程特别是隧道和地下空间的开发具有重要意义。在这项研究中，我们使用负指数，对数正态和正态的概率密度分布函数，研究了联合迹线长度对使用UDEC（Universal Distinct Element Code）的岩体中构造的隧道稳定性参数（如应力和位移）的影响）。结果表明，与其他两个分布函数相比，节点迹线长度的正态分布函数对隧道的稳定性更为关键，而指数分布函数对隧道稳定性的影响较小。

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