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

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...

AI Technical Summary

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 inflow of tunnels in karst areas, especially the prediction of segmental water inflow

[0003] In related technologies, the methods and models of water inflow in karst tunnels are not accurate enough in the investigation of the hydrogeological conditions of the actual object, and there is a lack of long-term high-precision hydrological observation data, resulting in prediction results that are far from meeting the actual engineering needs.

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