岩溶隧道涌水影响因素、预测方法及危害分析

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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．

Key words： railway tunnel karst tunnel water bursting volume influencing factors forecasting method hazard analysis

Received: 02 August 2012

PACS:

U25

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	WU Zhi － sheng
	ZHANG Jie

Cite this article:

WU Zhi － sheng,ZHANG Jie. Analysis of Influencing Factors，Forecasting Methods and Hazard of Water Bursting of Karst Tunnel[J]. 铁道工程学报, 2012, 29(11): 58-61.

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http://tdgcxb.crec.cn/EN/ OR http://tdgcxb.crec.cn/EN/Y2012/V29/I11/58

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