Longitudinal guided wave monitoring method for tailings pond dam body brake early-warning
A tailings silo, vertical technology, applied in the use of sound waves/ultrasonic waves/infrasonic waves to analyze solids, use sound waves/ultrasonic waves/infrasonic waves for material analysis, and measurement devices, etc., which can solve the problems of inconvenient sensor probe installation, large dam propagation attenuation, and video Problems such as transmission and communication signal limitations, to achieve the effect of simple data analysis, simple and easy operation, and high detection accuracy
A tailings silo, vertical technology, applied in the use of sound waves/ultrasonic waves/infrasonic waves to analyze solids, use sound waves/ultrasonic waves/infrasonic waves for material analysis, and measurement devices, etc., which can solve the problems of inconvenient sensor probe installation, large dam propagation attenuation, and video Problems such as transmission and communication signal limitations, to achieve the effect of simple data analysis, simple and easy operation, and high detection accuracy
CN110220978AActive Publication Date: 2019-09-10JIANGXI UNIV OF SCI & TECH
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[0061] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0062] The invention provides a longitudinal guided wave monitoring method for the early warning of tailings dam dam failure, which can not only determine the change characteristics inside the dam body by analyzing and studying the received longitudinal guided wave signal, so as to achieve accurate monitoring of the tailings dam It has the advantages of low labor cost, all-weather automatic monitoring, simple and easy operation of monitoring methods, simple dat...
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Abstract
The invention discloses a longitudinal guided wave monitoring method for tailings pond dam body brake early-warning. The method comprises the following steps: step one, determining a monitoring pointlocation along a fill dam span direction on the basis of sufficiently analyzing the existing engineering document and performing geological survey; step two, pre-embedding a waveguide rod array at a monitoring point location drill hole; 1) pre-embedding a PVC pipe at the monitoring point location drill hole; 2) selecting waveguide rods; 3) determining the root number N of the waveguide rod; 4) placing the waveguide rods at a center location of the PVC pipe; and 5) plugging an orifice by using a rubber plug; step three, mounting a longitudinal guided wave sensor; step four, establishing a signal collection base station; step five, collecting the signal; and step six, analyzing and processing the data. The longitudinal guided wave monitoring method for tailings pond dam body brake early-warning disclosed by the invention has the advantages of being low in labor cost, automatic in full-weather monitoring, simple and easy in operation, simple in data analysis, less in error element and high in detection precision.
Description
technical field [0001] The invention relates to the technical field of mine construction, in particular to a longitudinal guided wave monitoring method for early warning of dam failure of a tailings reservoir. Background technique [0002] The tailings pond is a place where mines store tailings and waste water left after ore crushing and selection. It is an industrial structure under construction. With the continuous mining of the mine, its height will continue to flow in with the discharge of tailings and waste water. increase, which is a source of danger with increasing potential energy. The dam body of the tailings pond is composed of an initial dam and an accumulation dam. The accumulation dam is formed by the accumulation of tailings and belongs to a loose medium accumulation body. As the height of the dam body increases, accumulation sub-dams are formed one by one. Caused by accumulation sub-dam damage. Accumulation dams are different from common rock slopes in that ...
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Patent Timeline
10 Sep 2019
Publication
CN110220978A
- IPC
- G01N29/11; G01N29/44
- CPC
- G01N29/11; G01N29/4472; G01N2291/015; G01N2291/0232; G01N2291/0289; G01N2291/2698
- Inventors
- 何文; 林凤翻