Riverbed sediment distribution detection device, system and method based on geological radar

Abstract

The invention belongs to the technical field of riverbed sediment detection, and particularly relates to a riverbed sediment distribution detection device, system and method based on geological radar.The device comprises a sealed cabin, a lifting mechanism mounted on the sealed cabin, a temperature and pressure acquisition mechanism, a geological radar detection mechanism, and a data acquisitionand control lower computer. The lifting mechanism enables the sealed cabin to ascend or descend in a river through water inflow or water drainage; the temperature and pressure acquisition mechanism isarranged on the sealed cabin and is used for measuring the river water depth and the temperature of different river water depths; the geological radar detection mechanism is installed in the sealed cabin and used for detecting a riverbed sediment layer and a sedimentary layer; and the data acquisition and control lower computer is arranged in the sealed cabin and is respectively connected with the lifting mechanism and the temperature and pressure acquisition mechanism. According to the invention, accurate and reliable detection of riverbed form, river water temperature and riverbed sedimentdistribution can be realized, and powerful data support is provided for calculating the exchange capacity of rivers and underground water.

Description

technical field [0001] The invention belongs to the technical field of riverbed sediment detection, in particular to a detection device, system and method for riverbed sediment distribution based on geological radar. Background technique [0002] Quantitatively evaluating the amount of transformation between rivers and groundwater during the mutual transformation process has become the focus and difficulty of groundwater resource evaluation. Especially for rivers in the plains where the hydraulic gradient is small, the water flow rate is slow, and a large number of fine particles are deposited, resulting in the thickening of the sediment layer of the river bed. Since the permeability coefficient of the silt layer is less than 0.1m / d, there is a hydraulic gradient between the river and the groundwater, and the exchange volume is negligible. Therefore, it is very important to find out the distribution of riverbed sediments to calculate the exchange volume between rivers and g...

AI Technical Summary

Problems solved by technology

[0003] The traditional method mainly uses drilling to reveal the lithological structure of the river bed, but it is easy to disturb the sediment layer and destroy the sediment layer structure during the sampling process, resulting in the inability to accurately evaluate the permeability characteristics of the sediment layer

At the same time, due to the inhomogeneity of river bed deposition due to the dynamic characteristics of rivers, it is impossible to describe its spatial distribution characteristics only by using boreholes

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