岩溶隧道涌水量综合预测——以朱家岩岩溶隧道为例

摘要

Water inflow in Karst tunnels has long been a big problem during domestic and international tunnel construction processes, since it will usually cause great damage to such project. Based on recent karst hydrogeology theories and engineering practices both home and abroad, as well as years of experiences, we propose “the four - step modeling method of the comprehensive forecast of the water inflow in karst tunnels".This method uses the theories and methods of Earth System Science and the system theory principles and analogical methods, starts with various geological survey and monitoring methods, combines the discussion of equation, physical modeling and BP neural network model, and conducts a comprehensive forecast study of the water inflow in karst tunnels, on the basis of analyzing the relationship between the system structure characteristics of karst groundwater and the flow movement within kart media.%长期以来岩溶隧道涌水问题是国内外隧道施工中的重大难题,往往对工程造成极大危害.基于岩溶水文地质学的最新理论和国内外工程实践,结合多年的经验,提出"岩溶隧道涌水量综合预测四步建模法".运用地球系统科学的理论与方法,辅之系统论原理和类比方法,从多种地质调查与监测手段入手,在分析确定岩溶地下水系统结构特征(特别是地下岩溶含水介质类型)与其内水流运动关系的基础上,采用流量衰减分析法、物理模拟和BP神经网络模型三者相结合的方法,对岩溶隧道涌水量进行综合预测研究.