• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Tunnelling and underground space technology >Investigation on the causes of abnormal increase of water inflow in underground water-sealed storage system
【24h】

Investigation on the causes of abnormal increase of water inflow in underground water-sealed storage system

机译：地下水密封存储系统中水流入量异常增加的原因研究

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

Water inflow is a crucial factor in underground water-sealed storage for both safety and operation costs. Water inflow control measurements have mainly focused on the grouting of the cavern regardless of considering the influence of the access tunnel (i.e. the water flows directly through the fissures connecting the access tunnel and tanks after the access tunnel impoundment). In this study, the water control measurement related to access tunnel was investigated in certain project. First, based on monitoring data before the operational condition (including water inflow, groundwater level, and operating water level), the water inflow variation laws were explored in different construction phases. Then, the cause for abnormal increase in the water inflow after the access tunnel impoundment was explored using cross-correlation analysis and linear regression. Finally, some novel recommendations were provided for avoiding the abnormal increase in water inflow after the access tunnel impoundment: (1) zones with great fracture density or zones of water leakage should be identified through a geological survey and grouted before the access tunnel impoundment; (2) the access tunnel should avoid intersecting the advantage trend of fissures at a large angle to the greatest extent possible, and the layout of the access tunnel could be changed from the "wrap-around" to "direct-type" configuration; (3) smaller cross-section sizes and shorter lengths should be adopted for the access tunnel to retain proper functioning of the access tunnel and reduce the possibility of hydraulic connections between the access tunnel and tanks.
机译：对于安全和运营成本而言，进水是地下密封存储的关键因素。无论考虑通道隧道的影响（即，在通道隧道蓄水后，水直接流过连接通道隧道和水箱的裂缝），进水控制测量主要集中在洞穴的注浆上。在这项研究中，在某些项目中研究了与通道有关的水控制措施。首先，根据运营条件（包括入水量，地下水位和运行水位）之前的监测数据，探讨了不同施工阶段的入水量变化规律。然后，使用互相关分析和线性回归分析了进入隧道蓄水后水流入量异常增加的原因。最后，提出了一些新的建议，以防止进入隧道蓄水后水的流入量的异常增加：（1）应当通过地质调查确定裂缝密度大的区域或漏水区域，并在进入隧道蓄水之前进行灌浆； （2）进入隧道应尽可能避免在最大角度上相交于裂缝的优势趋势，并且进入隧道的布局可以从“环绕”更改为“直接型” “配置； （3）通道应采用较小的横截面尺寸和较短的长度，以保持通道的正常运行，并减少通道与储罐之间液压连接的可能性。

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