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隧洞断层破碎带岩体涌水量分析——安哥拉某水电站为例

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文章导航 > 西北地质 > 2022 > 55(1): 255-261

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李辰舟, 苏传洋, 邓争荣, 李林, 袁洋洋. 2022. 隧洞断层破碎带岩体涌水量分析——安哥拉某水电站为例. 西北地质, 55(1): 255-261. doi: 10.19751/j.cnki.61-1149/p.2022.01.022
引用本文: 李辰舟, 苏传洋, 邓争荣, 李林, 袁洋洋. 2022. 隧洞断层破碎带岩体涌水量分析——安哥拉某水电站为例. 西北地质, 55(1): 255-261. doi: 10.19751/j.cnki.61-1149/p.2022.01.022
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LI Chenzhou, SU Chuanyang, DENG Zhengrong, LI Lin, YUAN Yangyang. 2022. Water Inflow Analysisof Rock Mass in Fault Fracture Zones of Tunnel——Taking a hydropower station in Angola as an example. Northwestern Geology, 55(1): 255-261. doi: 10.19751/j.cnki.61-1149/p.2022.01.022
Citation: LI Chenzhou, SU Chuanyang, DENG Zhengrong, LI Lin, YUAN Yangyang. 2022. Water Inflow Analysisof Rock Mass in Fault Fracture Zones of Tunnel——Taking a hydropower station in Angola as an example. Northwestern Geology, 55(1): 255-261. doi: 10.19751/j.cnki.61-1149/p.2022.01.022
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隧洞断层破碎带岩体涌水量分析——安哥拉某水电站为例

  • 长江岩土工程有限公司, 湖北 武汉 430010

  • 基金项目:

    湖北省自然科学基金项目“南水北调中线调水背景下汉江中下游生态补偿调控策略研究”（2015CFB515）。

详细信息
    作者简介: 李辰舟(1988-),男,硕士,工程师,2014年毕业于中国地质大学(武汉)地质工程专业,现主要从事地质与岩土勘察工作。E-mail:472317816@qq.com。

  • 中图分类号: P641

Water Inflow Analysisof Rock Mass in Fault Fracture Zones of Tunnel——Taking a hydropower station in Angola as an example

  • Changjiang Geological Engineering Corporation, Wuhan 430010, Hubei, China

    摘要
  • 隧道涌水量预测对隧道的设计和施工至关重要。笔者以安哥拉某水电站进厂交通洞涌水为例，基于涌水发生后实测的涌水量、水温、水化学、附近地下水位变化等特征，分析涌水成因。根据涌水洞段岩体透水性的不同，将隧洞断层区岩体划分为3个透水性段。根据建立的模型，采用流体力学伯努利方程对最大涌水量进行估算；利用稳定流裘布依理论公式对正常涌水量进行估算，估算结果与实际情况一致。另外，根据分析结果对涌水段提出相应的工程处理措施，同时提出后续开挖过程中在可能出现的岩体破碎带涌水量较丰富的洞段，布置超前钻孔排水的预防措施。论文成果可为其他类似工程的涌水问题提供参考。
    Forecasting the water inflow in tunnels is of great importance to the tunnels' design and construction. This paper takes an access tunnel of hydropower station in Angola as an example and analyzes water inflow factors based on the statistics of water inrush, water temperature, water chemistry and variation of groundwater level. According to the difference of water permeability, rock mass of the fault fracture zone in tunnel was classified into 3 types. Based on the established model, the maximum water inflow was estimated using the Bernoulli equation of fluid mechanics and the normal water inflow was estimated using the formula of stable flow. The estimated result is consistent with the actual situation. The authors finally propose some engineering treatment measures for the water gushing section, and some preventive measures of layout of borehole drainage in the fractured rock mass zone with water inflow. The research can provide reference for other similar engineering problems of water gushing.
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出版历程
收稿日期:  2021-03-11
修回日期:  2021-07-12

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