不同地质边界条件岩溶隧道涌水量预测及展望

研究目的：我国目前岩溶隧道涌水量有许多计算方法。虽然方法众多，但对隧道设计要求的正常涌水量及最大涌水量还不能完全满足，仍存在较大误差，有必要深入研究，寻求新的途径。研究方法：根据浅埋岩溶长隧道一南岭隧道涌水量及地表泉的长期观测资料，利用反演推导得出新的方法。研究结果：通过研究得出大泉流量预测法、隧道涌水曲线反演分析法（新均衡法），同时根据长期观测资料得出隧道影响半径（集水范围）、枯水期涌水量、枯水期单位长度富水量、降雨入渗系数等重要水文地质参数及不同季节隧道涌水量比值。研究结论：建议在水文地质参数和涌水量取值方面，转变设计、施工观念；岩溶隧道的修建应贯彻科学发展观进行全面评估。

Prediction of Water- bursting Volume in Karst Tunnel under Different Geological Boundary Conditions

Research purposes: At present,there are many methods in China of computing the water-bursting volume in karst tunnel.Although there are many methods,but they can not completely meet the tunnel design requirements for computing normal water-bursting volume and max.water-bursting volume with big gaps,so it is necessary to do the researches for the purposes of seeking new way.Research methods:A new method is obtained by adopting inversion derivation with long-term observed data about and surface spring water-bursting volumes in Nanling Tunnel,a long shallow buried karst tunnel.Research results:The prediction method of big spring flow and curve inversion analysis method(new balance method) of water-bursting in tunnel are obtained through doing researches,and at the same time,many important hydrological and geological parameters and the ratios of water-bursting volumes in tunnel in different seasons are obtained with long-term observed data,including water-collection area,water-bursting volume in dry season,water-enriching volume for one unit length in dry season and the factor of rain penetrating into tunnel.Research conclusions:The design and construction concepts on hydrological and geological parameters and sampling water-bursting volume should be changed,and the construction of karst tunnel should be evaluated with scientific development outlook.