首页> 外文期刊>Tunnelling and underground space technology >Stress redistribution and ground arch development during tunneling
【24h】

Stress redistribution and ground arch development during tunneling

机译:隧道施工过程中的应力重新分布和地拱的发展

获取原文
获取原文并翻译 | 示例
           

摘要

Three-dimensional stress adjustment caused by tunneling is related with ground arching development. Investigating the development of ground arching by stress redistribution during tunneling is presented. A three-dimensional numerical simulation model was developed to gain understanding of adjustment of tunneling stress. Vertical stress adjustments δ_(ZZ) above the tunnel roof during tunneling are analyzed, using four different cover depths H and four lateral pressure coefficients K. Shift of the inflection points of δ_(ZZ)-depth curves above the tunnel roof during tunneling can be a reliable index to show the development of ground arching.
机译:隧道引起的三维应力调整与地拱的发展有关。提出了在隧道施工过程中通过应力重新分布来研究地拱的发展。建立了三维数值模拟模型,以了解隧道应力的调整。使用四个不同的覆盖深度H和四个侧向压力系数K分析隧道顶上方的竖向应力调整δ_(ZZ)。隧道顶上方的δ_(ZZ)深度曲线拐点的偏移可以通过以下方法得出:一个可靠的指标来显示地面拱形的发展。

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