Karst tunnel water gushing prediction method

A prediction method and karst water technology, which are applied in earth-moving drilling, mining equipment, mining equipment, etc., can solve the problem of water inflow in karst tunnels and the prediction results of models cannot meet engineering requirements and lack long-term high-precision hydrological observations. Data, the difficulty of the amount of water inflow in tunnels in karst areas, etc., to achieve the effect of improving accuracy

Inactive Publication Date: 2019-01-01
CHINA UNIV OF GEOSCIENCES (WUHAN)
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Problems solved by technology

Due to the complexity, variability and particularity of the tunnel crossing space in the karst area, coupled with the regional differences and the uncertainty of the hydrological cycle system, it is difficult to accurately predict the water inflow of the tunnel in the karst area.
[0003] In related technologies, due to the lack of understanding of the hydrogeological conditions of the actual object by the simulator and the lack of survey accuracy, as well as the lack of long-term high-precision hydrological observation data, the methods for predicting and calculating the water inflow of karst tunnels and the results of the model predictions are as far as Less than actual engineering needs

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  • Karst tunnel water gushing prediction method

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Embodiment Construction

[0021] In order to make the purpose, technical solution and advantages of the present invention clearer, the embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0022] Please refer to figure 1 , a method for predicting water gushing in karst tunnels, comprising the following steps:

[0023] (1) Carry out karst hydrogeological survey of the target area: check the geological overview, hydrogeological conditions and karst development characteristics of the target area and conduct field investigations, and then divide the karst watershed system;

[0024] Refer to attached figure 2 , 3 , 4. Specifically, the karst watershed system is divided according to the catchment area determined after delineating the watershed; the karst watershed system is divided into a single-level karst watershed system, a double-level karst watershed system or a multi-level karst watershed system; The single-level karst watershed system...

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Abstract

The invention discloses a karst tunnel water gushing prediction method. Through high-resolution dynamic monitoring of rainfall and the karst underground river pipeline flow, the response characteristics of a karst water system under different rainfall and rainfall intensity conditions are grasped, and the lag time of confluence of all karst sub-basins is analyzed and determined, and applied to construction of a watershed hydrologic model. The prediction accuracy of the karst tunnel water gushing flow is effectively improved, geological advance forecast can be conducted, and the karst tunnel water gushing prediction method is very important to tunnel karst water damage prevention and control, overcomes the defects in tunnel water gushing flow evaluation in the past, and has more practical guiding significance for engineering construction.

Description

technical field [0001] The invention relates to the technical field of prediction and prevention of water inrush disasters in karst tunnel engineering, in particular to a method for predicting water inrush in karst tunnels. Background technique [0002] In recent years, with the construction of high-speed railways and highway tunnels in mountainous areas, in order to prevent major water inrush accidents during the construction of tunnel projects, especially in karst areas, geological disasters such as water inrush and mud inrush caused by karst and karst water It is sudden and uncertain, and poses a major threat to railway engineering; the method and theory of tunnel water inflow prediction in karst areas have been the focus and difficulty of hydrogeological researchers for a long time. Due to the complexity, variability and particularity of the tunnel crossing space in the karst area, coupled with the regional differences and the uncertainty of the hydrological cycle system...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F17/00
CPCE21F17/00
Inventor 万军伟王宗星李小河郭建湖谭家华黄琨常威
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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