A kind of soil and groundwater stratification monitoring well system and well construction method

Abstract

The invention discloses a soil and groundwater layered monitoring well system and a well construction method thereof, belonging to the technical field of groundwater monitoring, which can realize the change of the traditional layered monitoring mode, and not only realizes that the single layer monitoring well and the multi-layer exploration hole are mixed by mixing The transformation from layer monitoring to layered monitoring also solves the difficulty of constructing wells in traditional nested monitoring wells when dealing with multi-layer groundwater levels. It is modeled on elevator wells in groundwater monitoring, abandoning traditional mixed water and adopting the form of isolation. The monitoring of groundwater in multi-layer sections is realized through the point-to-point monitoring mode. Theoretically, it is not affected by the number of sections. The operation of first docking and then sampling at the station is adopted, which has high monitoring stability and is not prone to errors. In this way, only one pipe is used. Complete the all-weather automatic monitoring of the groundwater level of each layer, and has the functions of remote control and data transmission to realize unmanned automatic monitoring, with low difficulty in construction, low cost, small footprint and long service life.

Description

technical field [0001] The invention relates to the technical field of groundwater monitoring, and more particularly, to a soil and groundwater stratification monitoring well system and a well construction method. Background technique [0002] Groundwater monitoring refers to the work of collecting groundwater samples from wells for testing by drilling into underground rock formations. The single-tube multi-layer monitoring well is the most conventional multi-layer monitoring well for groundwater with the largest number of constructions. It is a well formed by installing a well tube in a borehole, and the outside of the tube is layered with gravel and water-stop. There is no stratification in the well tube, the water level in the well is a mixed water level, and the water sample is also a mixed water sample. Therefore, the collected groundwater samples are likely to be contaminated by other layers, which will affect the detection accuracy of this layer of groundwater. The s...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems existing in the prior art, the object of the present invention is to provide a soil groundwater layered monitoring well system and a well construction method thereof, which can change the traditional layered monitoring mode, and not only realize single-layer monitoring wells and The multi-layer exploration hole has changed from mixed layer monitoring to layered monitoring, and at the same time solved the difficulty of building wells when traditional nest monitoring wells deal with multi-layer groundwater levels. In the form of isolation, the monitoring of multi-layer groundwater is realized through the point-to-point-to-station monitoring mode. Theoretically, it is not affected by the number of layers. The operation of docking first at the station and then sampling is adopted. The monitoring stability is high and it is not easy to make mistakes. This realization only uses one pipe to complete the all-weather automatic monitoring of the groundwater level in each layer, and has the functions of remote control and data transmission, realizing unmanned automatic monitoring, less difficulty in well construction, low cost, small footprint and long service life long

Images