摘要
研究目的:隧道涌水量预测计算方法众多,计算成果与实际涌水都有较大的差距,尤其是非均质的岩溶隧道,因此有必要仔细分析其影响因素,选取合理的预测方法,提高预测精度,降低其危害。研究结论:(1)隧道涌水量预测的影响因素较多,可大体归纳为客观因素、人类活动因素及时空因素这三种;(2)岩溶隧道由于其独特的地下水特征,与非可溶岩隧道的区别很大;(3)非可溶岩隧道的涌水量预测,一般按层流理论的地下水动力学法计算,可溶岩地层隧道涌水量预测不能采用层流理论,应根据其边界条件有针对性地选取预测方法;(4)由于岩溶隧道涌水地质灾害的的危害极大,呼吁建设、设计、施工等单位应从实际出发,转换观念,坚持可持续发展战略,尽量降低工程建设对于自然环境的影响。
Research purposes： There are many calculation methods for the water bursting of tunnel, but there is big gap between the calculation result and the actual water bursting volume, especially there is bigger gap for the anistrope karst tunnel. So it ＇s necessary to analyze the influencing factors of the water bursting in detail to select the reasonable forecasting method for the purpose of improving the forecasting accuracy and reducing the risk. Research conclusions：There many factors to influence the prediction of the water bursting. However, the influencing factors can be basically divided into three type ： the objective factors, human factors and space - time factors. The karst tunnel is very different from the non - karst tunnel due to its unique characteristics of groundwater. The calculation of the ground water with the dynamics of the laminar flow theory can be used for prediction of the water bursting volume of non - karst tunnel, but it is unavailable for the karst tunnel. The other method should be used for the karst tunnel according to the boundary condition of the tunnel. As the hazard of water bursting of the karst tunnels is big, it is necessary to pay more attention to reducing the influence of the construction on the natural environment by changing the ideas and insisting on the strategy of sustainable development.
出处
《铁道工程学报》
EI
北大核心
2012年第11期58-61,86,共5页
Journal of Railway Engineering Society
关键词
铁路
隧道
岩溶隧道
涌水量
影响因素
预测方法
危害分析
railway
tunnel
karst tunnel
water bursting volume
influencing factors
forecasting method
hazard analysis
