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Technique for monitoring Na+ and C1- ions in sea area

A technology of ion monitoring and technology, applied in mining equipment, mining equipment, earthwork drilling and mining, etc., can solve problems such as insufficient safety guarantee, loss, water penetration safety accidents, etc.

Inactive Publication Date: 2013-02-06
LONGKOU MINING GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current underwater coal mining technology has problems such as insufficient safety guarantees, which may cause serious water seepage safety accidents, and cause many casualties and major property losses

Method used

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Embodiment Construction

[0007] Groundwater occurs in the voids of the water-bearing rock layers and is constantly moving. During the formation, accumulation and movement of groundwater, it constantly interacts with the surrounding medium to exchange ions. After long-term geological action, ion exchange, After the physical and chemical action process, the dynamic balance of the ionic composition of the aquifer water quality is achieved. Therefore, under different geological and hydrogeological conditions, the chemical composition of water in the aquifer is different in composition and content. To study the hydrochemical characteristics of groundwater in sea area coal-measure strata, the overlying Quaternary aquifer and seawater, and master the water quality background and main ion content of each coal-measure aquifer. It is of great value to quickly judge the source of underground water inrush, take timely measures to prevent and control water, and reduce or avoid the occurrence of well flooding accid...

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Abstract

The invention discloses a technique for monitoring Na-+ and C1- ions in sea areas. The technique comprises the following steps: Cl- and SO42- selected from negative ions are used as characteristic ions and monitored by carrying out a mixing proportioning test on sea water and main basal water and monitoring an early-warning threshold; an early warming is given according to the change of the ion content of the characteristic ions; when the increase amplitude of the ion content is not more than 10%, a mine well is in a safety state and can be used normally; when the increase amplitude of the ion content is 10% to 30%, the observation and the analysis for the mine well are strengthened; when the increase amplitude of the ion content is 30% to 50%, the mine well is in an emergency guarding state for rescue preparation; and when the increase amplitude of the ion content is not less than 50%, the mine well is in an danger alarming state, and then an emergency rescue is carried out immediately. The invention aims to provide the method for avoiding water permeation of a top plate for undersea mining in an ion monitoring manner, so as to ensure more safety of undersea mining of coal resources in the sea and prohibit serious safety accident and property loss caused by the water permeation.

Description

technical field [0001] The invention relates to the monitoring technology of Na+ and Cl- ions in sea area. Background technique [0002] The current subsea coal mining technology has problems such as insufficient safety protection, which may cause serious water infiltration safety accidents, and cause many casualties and heavy property losses. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a method for preventing water penetration of subsea coal mining roof through ion monitoring, which can make the mining of seabed coal mine resources safer and avoid serious water penetration safety accidents and major property losses. [0004] The method for preventing water permeation of the subsea coal mining roof through ion monitoring of the present invention, through the mixing ratio test of seawater and main aquifer water and the monitoring of the early warning threshold, establishes that Na + , Cl - Ions are the main monitoring object to mon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F17/18
Inventor 常颖王文波张雁韩仁桥曲祖俊
Owner LONGKOU MINING GRP