Abstract：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．
Wu Zhisheng．Prediction of Water － bursting Volume in Karst Tunnel under Different Geological Boundary Conditions ［J］．Journal of Railway Engineering Society，2007(11) : 48－55．
Fourth Survey＆Design Institute of MOR． The Research between Krast，Railway Engineering and Environmental Geology［R］． Wuhan: Fourth Survey＆Design Institute of MOR，2004．
［3］吴治生． 岩溶隧道的环境地质问题． 铁道工程学报，2006(1) :70 －73．
Wu Zhisheng． Environmental Geology Problem of Tunnel in Karst zone ［J］．Journal of Railway Engineering Society，2006( 1) : 70－73．
［4］吴治生．岩溶隧道设计、施工方案的论证及实施．铁道工程学报，2006( 2) :47 －51．
Wu Zhisheng．Demonstration and Enforcement of Design and Construction Schemes for Long Tunnel in Karst Zone ［J］．Journal of Railway Engineering Society，2006( 2) : 47－51．
Staff Room of Geology and Hydrogeology Engineering Tongji University．Structural Geology and Geomechanics［M］．Beijing: China Architecture＆Building Press，1982．
［8］吴治生． 岩溶塌陷地表稳定性分析及工程地质分区［J］．
铁道工程学报2006( 4) :6－9．Wu Zhisheng． Analysis of Stability of Subsidence Surface in Karst Area and Zoning for Engineering Geology［J］．Journal of Railway Engineering Society，2006( 4) : 6－9．
2012, Vol. 29 
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