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A monitoring and early warning method for filling body failure and instability precursor information

A filling body and precursor technology, which is applied to alarms, measuring devices, signal transmission systems, etc., can solve problems such as high filling costs, unclear stability status, and incomplete on-site monitoring data, and achieve simple construction and improved accuracy. Effect

Active Publication Date: 2017-06-06
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Description
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Problems solved by technology

[0004] Aiming at the problems of unclear filling body stability state, incomplete on-site monitoring data and high filling cost in cemented filling mining, the present invention proposes a method of realizing early warning of filling body damage and instability by using resistivity and stress-strain monitoring data. The method is simple, and at the same time, it can greatly reduce the filling cost, improve the filling efficiency, and ensure the long-term and timely grasp of the stable state of the stope filling body

Method used

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  • A monitoring and early warning method for filling body failure and instability precursor information
  • A monitoring and early warning method for filling body failure and instability precursor information

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Embodiment Construction

[0021] Combine figure 1 , figure 2 As shown, a kind of filling body damage and instability precursor information monitoring and early warning methods, including filling body 1, pressure pillow 2, digital display stress meter 3, optical fiber data line 4, needle electrode 5, copper wire 6, resistivity acquisition host 7 The data collection terminal 8, the user computer 9, the strain gauge 10, the strain gauge 10 installed on the pressure pillow 2 in the filling body 1 transmits the pressure signal through the oil pipe to the digital display stress gauge 3; the needle electrode 5 passes The copper wire 6 transmits the resistivity signal in the filling body 1 to the resistivity acquisition host 7; the stress data collected by the digital display stress meter 3 and the resistivity data collected by the resistivity acquisition host 7 are then transmitted through the optical fiber data line 4 To the data collection switchboard station 8, and finally through the data collection switc...

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Abstract

The invention discloses a monitoring and early warning method for buckling failure precursor information of a filling body. The method is used for determining a monitoring area of an on-site filling body and carrying out numbering; a borehole stressmeter and a pin type electrode are utilized for monitoring the stress and the resistivity value of the filling body in real time, and then the stress and the resistivity value are converted into the stress change rate and the resistivity change rate, the change tendency of the change rates is grasped, and the buckling failure of the filling body is precisely and early warned. The method is applied to the fields of mine cut and fill mining, consolidation treatment of tailings, soil slopes, mine refuse dumps and the like, and is easy to implement, high in reliability, low in cost, good in effect and capable of determining the stability state of the on-site filling body, the lime and sand ratio can be adjusted based on the circumstances, and the filling cost can be obviously reduced.

Description

Technical field [0001] The invention belongs to the field of mine safety, and relates to a large-area and large-stage cemented filling stability monitoring and early warning method in cemented filling technology, and in particular to a method for monitoring and early warning of the precursor information of the failure and instability of the filling, which is suitable for tailings dams ), tailings consolidation disposal body, soil slope, mine dump site and other fields. Background technique [0002] With people’s full utilization of resources and increased awareness of environmental protection, more and more mines at home and abroad have begun to adopt the filling method for mining. The filling body filled to the stope must not only maintain the stability of itself and the stope at this stage, but also It affects the equipment safety of mining operators in the previous stage. Once the filling body is damaged and instability, it is easy to cause the adjacent filling stope to collap...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D21/02G08C23/06G08B21/10
Inventor 徐文彬潘卫东张通
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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