摘要
从6种隧道涌水量计算方法的基本原理出发,讨论了其计算步骤、公式及适用条件.选择合适的计算方法预测涌水量,有助于预警和制定施工对策.以杭州某引水工程为例,采用水均衡法和地下水动力学法对桩号6+331～6+360段进行涌水量预测,采用水文地质比拟法预测桩号1+885～1+905段涌水量.通过与实测涌水量的对比,预测值的误差较小,为工程的顺利实施提供了技术支持.6种涌水量预测方法各有优点和不足,根据各方法的适用条件,因地制宜,能够获得较好的预测效果.
Based on the basic principles of 6 calculation methods for predicting amount of water gushing in tunnel,the calculation approaches,formulae and suitable conditions are discussed.The predicting water gushing with appropriate calculation method is helpful to make both the early warning and the construction countermeasure concerned.Taking a water diversion project in Hangzhou as a case,the amount of water gushing in the section with the stake number from 6+331 to 6+360 is predicted with water-balance method and groundwater dynamics method,and the amount of water gushing in the section with the stake number from 1+885 to 1+905 is predicted with hydrogeologic analogy method as well.Through the comparison with the actual measured amount,it is demonstrated that the error of the predicting value is less,and then provides a better technical support for the smooth implementation of the project.The study shows that all the 6 predicting methods have their own advantages and shortcomings;and then better predicting effect can be obtained,only if they are applied under their suitable conditions.
出处
《水利水电技术》
CSCD
北大核心
2009年第7期41-44,共4页
Water Resources and Hydropower Engineering
基金
国家自然科学基金资助项目(50509021)
关键词
隧道涌水量
预测
水文地质比拟法
水均衡法
地下水动力学法
water gushing amount in tunnel
prediction
hydrogeologic analogy method
water-balance method
groundwater dynamics method
