隧道涌水量计算探讨

DISCUSSION ON OUTFLOW CALCULATION IN TUNNEL

本文对地下水动力学模型进行分析，指出地下水出流过程必须用多个不等调蓄系数的线性水库并联来模拟。还对隧道涌水过程进行分析，并用地下水汇流模型对某隧道某涌水点出流过程进行模拟，效果很好。分析结果表明，该涌水点出流过程的洪峰流量主要来自潜水含水层。本文还应用水文学中的产流量计算方法于该涌水点次涌水量计算。在此基础上提出该涌水点出流过程的实时预报方案。

Through the analysis of the model of underground water dynamics, this essay draws a conclusion that the process of outflow must be simulated by parallel connection ofseveral linear reservoirs with adjusting constants. The essay analyzes the process of outflow in tunnel and simulates the process of outfow at certain place in certain tunnel by using the converging model of the underground water. It is proved efficient. The analyzing resultshows that the peak of the out flow in this certain place is caused mainly from the subsurfacewater layer. The essay also applies the calculating method of outflow in hydrology to countthe outflow in the certain place. Based on the calculating result, this article puts forward aforecast plan about the process of outflow in the certain place.