Water level monitoring device and arrangement method of water level monitoring system in dumping site in strip mine

Abstract

The invention discloses a water level monitoring device and an arrangement method of a water level monitoring system in a dumping site in a strip mine. The water level monitoring device used in the strip mine dump can accurately detect the water level in the monitoring hole, and is stable in structure, convenient to assemble and long in service life. According to the arrangement method of the water level monitoring system in the dumping site in the strip mine, the influence areas in the dumping site are accurately divided, the arrangement density of the monitoring holes and the water level monitoring devices is determined according to the types of the influence areas, the monitoring cost can be effectively reduced, and the reliability of the monitoring system is improved. Traditional ultra-deep monitoring holes are changed into short and small monitoring holes formed in the dumping steps, so that drilling collapse can be effectively prevented, and the drilling cost is reduced. Wiring harnesses and the like are arranged in a pre-buried mode, influences of hot weather, severe cold weather and the like can be reduced, wired signal transmission and power supply of the system are achieved, and operation reliability of the monitoring system is improved.

Description

technical field [0001] The invention relates to the technical field of open-pit mines, in particular to a water level monitoring device and a method for arranging a water level monitoring system in a dump in an open-pit mine. Background technique [0002] Open-pit mine dumps are formed by the accumulation of a large amount of loose materials. Although they have undergone a certain degree of compaction during the dumping process, the rock-soil mass cementation is still poor, the pores are well connected, and they have good water storage and water quality. seepage conditions. In areas with abundant precipitation or groundwater, long-term water erosion can easily cause groundwater and atmospheric precipitation to infiltrate into the dump, causing the water level in the dump to rise, changing the properties and stress conditions of rock and soil, and even causing slope damage. Unsteady. In order to monitor the groundwater level changes in the dump in time, so as to take corres...

AI Technical Summary

Problems solved by technology

At present, the method of drilling from the top step of the dump to the bottom of the dump is often used for water level monitoring. However, the loose materials in the dump have poor cementitious properties, and monitoring holes, especially those with a large depth, are easy to appear during the drilling process. For accidents such as hole collapse, even if the monitoring holes are successfully drilled, maintenance will be difficult in the later stage, resulting in a significant increase in monitoring costs, which in turn will affect the layout density and monitoring effect of monitoring holes

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