High-resolution hydrological monitoring method for small-drainage-basin karst water system

A high-resolution, hydrological monitoring technology, applied in the direction of measurement devices, permeability/surface area analysis, suspension and porous material analysis, etc., can solve the problems of uneven karst water-bearing media, difficulties in tunnel water inflow, and groundwater Problems such as the difference in the amount of resources, to achieve the effect of improving efficiency and automation level, saving manpower and material costs, and reducing the amount of engineering

Inactive Publication Date: 2018-12-21
CHINA UNIV OF GEOSCIENCES (WUHAN)
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Problems solved by technology

Affected by many factors such as lithology, structure, and geological conditions, karst water-bearing media often have the characteristics of inhomogeneity, resulting in great differences and inhomogeneity in the amount of groundwater resources that occur in it, which often poses a threat to exploration, evaluation and development poses great difficulties
As a result, it is very difficult to accurately predict the water inflo...

Method used

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  • High-resolution hydrological monitoring method for small-drainage-basin karst water system
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  • High-resolution hydrological monitoring method for small-drainage-basin karst water system

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Embodiment 1

[0036] Please refer to figure 1 , an embodiment of the present invention provides a high-resolution hydrological monitoring method for a small watershed karst water system, comprising the following steps:

[0037] (1) Collect geological data and tunnel alignment data of the area where the target karst water system is located, and conduct preliminary analysis to determine the appropriate scope of the survey area;

[0038] (2) Conduct field investigation of hydrogeological conditions within the scope of the survey area, determine the type of karst landform, karst development and hydrogeological conditions in the target area, divide the watershed system, delineate the watershed, and determine the catchment area;

[0039] (3) Classify the karst water system according to the divided watershed system, the delineated watershed and the determined catchment area, and determine the sub-basin system;

[0040] Refer to attached figure 2 , specifically, the karst water system is classif...

Embodiment 2

[0080] The method of Embodiment 1 of the present invention is used to predict the water gushing situation of the Lanhuadong underground river basin system in Furong Town in real time.

[0081] A high-resolution hydrological monitoring method for the Lanhuadong underground river basin system in Furong Town, including the following steps:

[0082] (1) Collect geological data and tunnel alignment data in the Furong Town area, and conduct preliminary analysis to determine the appropriate scope of the survey area; the geological conditions in the Furong Town area are complex, and karst and groundwater are strongly developed. Developed, rich in groundwater, there is the possibility of tunnel water inrush, and the environmental hydrogeological conditions are relatively sensitive, so it is a very high-risk project;

[0083] (2) Field comprehensive surveys based on the karst assemblage in the Furong Town area, to find out the history of karst development in the study area, the type of ...

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Abstract

The invention provides a high-resolution hydrological monitoring method for a small-drainage-basin karst water system. Hydrological monitoring of a rainfall, surface water, an underground water flow,and a water level high resolution of a karst water system of a tunnel zone is carried out and the monitoring data are transmitted to a terminal processor in real time for convenient extraction and utilization; dynamic flow characteristics and changing rules of different karst aquifers, different karst landforms and karst water systems in the tunnel zone are studied and surveyed, an infiltration coefficient and a flow lag changing law of each sub-basin are monitored accurately to provide important hydrogeological data for prediction of tunnel water inflows, so that a critical role in segmentedprediction of tunnel water inflows is realized. Therefore, the monitoring work efficiency and automation level are improved; a lot of manpower and material costs are saved; the monitoring method has the low engineering load and the low cost; and the influence on the local environment is minimized. The high-resolution hydrological monitoring method is suitable for tunnel water inrush prediction inkarst areas, especially in segmentation prediction.

Description

technical field [0001] The invention relates to the technical field of hydrogeological survey and hydrological monitoring, in particular to a high-resolution hydrological monitoring method for karst water systems in small watersheds. Background technique [0002] For a long time, the methods and theories of tunnel water inflow prediction in karst areas have been the focus and difficulty of research by hydrogeologists. Due to the complexity, variability and particularity of tunnel crossing space in karst areas, coupled with regional differences and uncertainties in the hydrological cycle system, the karst groundwater system is determined by the spatial distribution pattern of karstified soluble rock mass. As the karst water storage space, the karst water-bearing medium is mainly composed of pipes, fissures, pores and their combination forms. Affected by many factors such as lithology, structure, and geological conditions, karst water-bearing media often have the characterist...

Claims

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Application Information

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IPC IPC(8): G01D21/02G01N15/08
CPCG01D21/02G01N15/08
Inventor 王宗星李小和常威万军伟项立磊胡庐峰
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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