暗河发育区岩溶隧道突涌水洪峰流量估计
Estimation of water inrush peak of karst tunnel approaching to underground river
投稿时间:2023-06-07  修订日期:2023-11-13
DOI:
中文关键词:  岩溶隧道  地下暗河  径流补给  突涌水  洪峰流量  
英文关键词:Karst tunnel  Underground river  Runoff replenishment  Inrush water  Peak discharge
基金项目:
作者单位邮编
谢艺伟 中交一公局厦门工程有限公司 211816
李开军 中交一公局厦门工程有限公司 
张鹏* 南京工业大学 交通运输工程学院 211816
郭子昊 南京工业大学 交通运输工程学院 
张翾 交通部公路科学研究所 
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中文摘要:
      地下暗河是岩溶隧道建设与运营重大的安全风险,暗河发育区岩溶隧道突涌水洪峰估计是岩溶隧道施工抢险与后期处治方案制定的重要基础数据。地下暗河洪峰流量不仅由岩溶区水文地质控制,而且还受到暴雨期地表径流补给的影响。本文结合实测数据和统计数据基础上,围绕小流域暴雨资料推求地表汇流洪峰形成机制,与地下暗河汇泄流洪峰行程机制,提出了一种考虑地表径流补给的暗河发育区岩溶隧道突涌水洪峰估计方法,并结合翠屏隧道的隧址区地形地貌、水文地质与实测涌水资料,开展了案例分析计算并比较实测涌水量。表明传统涌水预测方法无法考虑暗河与地表水补给的影响,与实测结果差距很大,本方法能够准确预测岩溶区因地表汇水补给暗河发育区隧道突涌水洪峰,为隧道防洪护堤高度、涵管过水容量设计、洪峰避险时间提供重要支撑,保障隧道施工与运营安全。
英文摘要:
      The underground river is a major safety risk in the construction and operation of karst tunnel. The estimation of water surge peak in karst tunnel in the development area of karst tunnel is an important basic data for the construction of karst tunnel and the formulation of treatment plan in the later period. The flood peak discharge is not only controlled by hydrogeology in karst area, but also affected by surface runoff recharge in rainstorm period. In this paper, based on the measured data and statistics, around the small watershed rainstorm volume flow flood formation mechanism, and the underground river hui discharge flood peak travel mechanism, puts forward a thinking of surface runoff recharge underground river development zone of karst tunnel water flood peak estimation method, and combined with green screen the tunnel site area topography and geomorphology, hydrology and geology of the tunnel and the measured data of water A case study was carried out to calculate and compare the measured water inflow. Show that conventional water gushing prediction method cannot consider underground river and the influence of surface water supplies, a big gap with the test result, this method can accurately predict karst area because of the surface catchment recharge underground river development area tunnel water flood peak, for flood control dike dam height, the culvert tunnel water capacity design, flood peak safe-haven time provide important support, to ensure the safety of tunnel construction and operation.
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