Unlock instant, AI-driven research and patent intelligence for your innovation.

A system and method for monitoring and forecasting water inrush by induced polarization method in coal mine floor drilling

A technology of induced polarization method and forecasting system, which is applied in the field of monitoring and forecasting system of water inrush by induced polarization method in coal mine floor drilling. sexual effect

Active Publication Date: 2020-11-17
CHINA UNIV OF MINING & TECH (BEIJING) +1
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the purpose of the present invention is to propose a coal mine floor drilling induced polarization method water inrush monitoring and forecasting system and method to solve the problem of low accuracy of existing monitoring methods and potential safety hazards

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A system and method for monitoring and forecasting water inrush by induced polarization method in coal mine floor drilling
  • A system and method for monitoring and forecasting water inrush by induced polarization method in coal mine floor drilling
  • A system and method for monitoring and forecasting water inrush by induced polarization method in coal mine floor drilling

Examples

Experimental program
Comparison scheme
Effect test

experiment example

[0070] The coal mine floor drilling excitation polarization method water inrush monitoring and forecasting system of the present invention is placed in the coal mine working face roadway, the host terminal 1 is located on the ground, and is used to start the underground field host 2, the controller 3 and the electrode string 4 to drill the coal seam floor. The rock 5 around the hole is measured by the high-density induced polarization method; and the measurement result is transmitted from the underground host 2 to the host terminal 1, and the apparent resistivity of the rock around the coal mine floor drilling 5 is calculated and analyzed at the host terminal 1. The apparent resistivity is 300Ω / m ( The apparent resistivity background value of the mine floor is 400Ω / m, and the standard deviation is 25Ω / m). ); at the same time, the apparent polarizability of the rock around the coal mine floor borehole 5 is calculated at the host terminal 1 to be 15% (the background value of the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention provides a system and method for monitoring and forecasting water inrush by induced polarization method in coal mine floor drilling. The electric field signal of the rock around the drilling hole; the controller is connected with the electrode series, which is used to control the electrode series to perform high-density induced polarization measurement on the surrounding rock of the coal mine floor drilling; the on-site host is connected with the controller, and is used to send control signals to the controller , and receive the electric field signal output by the electrode string, and process the electric field signal; the host terminal is connected with the on-site host to receive the processed electric field signal, and calculate the apparent resistivity and apparent polarizability of the rock around the coal mine floor drilling According to the change data, it is determined whether there is water inrush in the surrounding rock of the coal mine floor; the system can monitor the apparent resistivity and apparent polarizability of the rock around the floor in real time, so as to quickly and accurately determine the water inrush of the coal mine floor.

Description

technical field [0001] The invention relates to the technical field of coal mine water prevention and safety, in particular to a monitoring and forecasting system and method for coal mine floor drilling induced polarization method for water inrush. Background technique [0002] The formation and occurrence of mine water hazards have a change process from gestation, development to occurrence, and there are corresponding precursors in different stages of this change process. Microseismic monitoring is to find the specific parameters of the water-guiding channel, including the space-time position, energy and channel type, and according to the changes of factors such as water source, water volume and water temperature, combined with multi-disciplinary theories such as mine pressure and hydrogeology, to carry out advanced water inrush monitoring. Forecast and early warning. [0003] The existing methods for monitoring water inrush of coal mine floor are to monitor water inrush o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01V3/26
CPCG01V3/26G01V3/24G01V9/02E21F17/18E21B47/003E21B47/13E21F17/06G01V3/34G01V3/38
Inventor 曾一凡武强刘春生
Owner CHINA UNIV OF MINING & TECH (BEIJING)