Monitoring and early warning method and system for instability of tailing dam

A monitoring and early warning, tailings dam technology, applied in the direction of using sonic/ultrasonic/infrasonic waves to analyze solids, instruments, and materials, etc., can solve the problem that the monitoring indicators and parameters are not clear enough, the instruments need to be coupled to the tailings dam body, and cannot be properly Qualitative assessment of dam body stability and other issues

Inactive Publication Date: 2021-02-05
JIANGXI UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, in the field of tailings dam instability monitoring, some scholars have proposed GPRS, GIS, ZigBee and other technologies combined with modern computer, communication and other technologies to realize scientific and automatic monitoring of tailings dam safety, but this method Large technical investment makes it impossible to monitor the internal damage of the dam body, and the monitoring indicators and parameters are not clear enough to evaluate the stability of the dam body qualitatively; therefore, the instability monitoring of tailings dams still mainly relies on manual inspection or portable On-site measurement of instruments and equipment, but manual measurement is labor-intensive, affected by weather, surrounding environment, and manual error factors, the prediction accuracy in advance is low, and the instrument needs to be coupled to the tailings dam, and some monitoring instruments cannot be recycled, resulting in high costs

Method used

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  • Monitoring and early warning method and system for instability of tailing dam
  • Monitoring and early warning method and system for instability of tailing dam

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Embodiment 1

[0031] refer to figure 1 , is a monitoring and early warning system for tailings dam instability of the present invention, a monitoring and early warning system for tailings dam instability includes: a plurality of infrasonic signal automatic acquisition sensors 1, a network transmission device 2, a storage & control center 3, a server 4; among them,

[0032] The infrasonic signal automatic collection sensor 1 is used to collect the infrasonic signal of the tailings dam body to be tested in real time and convert the infrasonic signal into an analog signal for transmission;

[0033] In this embodiment, by reasonably selecting the area to be measured in the tailings dam body and optimizing the arrangement of sensors, the infrasonic signal generated inside the dam body can be collected to the maximum extent. For example, in a specific embodiment, according to the scale and shape of the mine tailings pond , infiltration line and reservoir water level and other parameters, determi...

Embodiment 2

[0044] Based on the system of embodiment 1, a monitoring and early warning method for tailings dam instability is proposed in this embodiment, and the flow chart refers to figure 2 , the method includes the following steps:

[0045] S100: Collect and store the infrasonic signal of the tailings dam body in real time; then perform step S200;

[0046] In this embodiment, the tailings dam monitoring area is determined according to parameters such as the scale, shape, infiltration line, and water level of the mine tailings pond, and sensors are arranged and numbered in a staggered manner in the area to be measured, and infrasonic signals are collected through these sensors; The area to be tested in the ore body is staggered and the infrasonic signal automatic collection sensor collects the infrasonic signal inside the tailings dam body.

[0047] S200: Analyze the infrasonic signal to obtain the infrasonic cumulative ringing count and time variation curve, energy rate and time var...

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Abstract

The invention provides a monitoring and early warning method and system for instability of a tailing dam. The method comprises the following steps: collecting and storing infrasonic wave signals of atailing dam body in real time; analyzing the infrasonic wave signals to obtain an infrasonic wave cumulative ringing count and an energy rate change rule; and analyzing the change rule of the cumulative ringing count along with time and the energy rate change rule to obtain a tailing dam instability failure early warning point. According to the method, the tailing dam instability is forecasted andearly warned through cooperation of the accumulated ringing count and the energy rate, early warning contingency can be effectively avoided, and the monitoring result accuracy is high.

Description

technical field [0001] The invention belongs to the technical field of tailings dam stability analysis, in particular to a monitoring and early warning method and system for tailings dam instability. Background technique [0002] The tailings dam is an important part of the mine and a major potential hazard source, and its stability must be monitored. At present, in the field of tailings dam instability monitoring, some scholars have proposed GPRS, GIS, ZigBee and other technologies combined with modern computer, communication and other technologies to realize scientific and automatic monitoring of tailings dam safety, but this method Large technical investment makes it impossible to monitor the internal damage of the dam body, and the monitoring indicators and parameters are not clear enough to evaluate the stability of the dam body qualitatively; therefore, the instability monitoring of tailings dams still mainly relies on manual inspection or portable On-site measurement...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/04
CPCG01N29/04G01N2291/0232G01N2291/0289G01N2291/10G01N2291/2698
Inventor 曾鹏刘周超赵奎熊金波林国洪陈华郭明龚囱杨斌
Owner JIANGXI UNIV OF SCI & TECH
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