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Method for distinguishing water bursting source of coal mine

A technology for water inrush sources and identification methods, which is applied in groundwater detection/exploration, measurement devices, fluorescence/phosphorescence, etc. Effect

Inactive Publication Date: 2013-11-13
XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the extremely complex exchange of matter, energy and information between the lithosphere, the biosphere and the atmosphere in contact with the groundwater during the natural system cycle, the hydrogeochemical characteristics are constantly changing on the scale of time and space, resulting in groundwater chemistry. The cause of formation is very complicated, and the current research in this field has encountered a development bottleneck

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  • Method for distinguishing water bursting source of coal mine
  • Method for distinguishing water bursting source of coal mine
  • Method for distinguishing water bursting source of coal mine

Examples

Experimental program
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Effect test

Embodiment 1

[0043] Embodiment 1: see Figure 1-4 , a method for identifying water inrush sources in coal mines. In a certain L mine in the Ordos Basin, the TOC concentrations in different aquifers (body) were 0.67mg / L (surface water), 0.79mg / L (quaternary water), 0.49 mg / L (sandstone water), 0.24mg / L (Austrian gray water); UV 254 Contents are 0.022cm -1 (surface water), 0.018cm -1 (quaternary water), 0.011cm -1 (sandstone water), 0.005cm -1 (Australian gray water). The three-dimensional fluorescence spectrum can more intuitively display the fluorescence characteristics of DOM in different water bodies: five fingerprint regions in surface water and quaternary water all show fluorescence peaks, and the fluorescence of tyrosine (EX / EM=230 / 310) in surface water The intensity is 37.54, the fluorescence intensity of tryptophan (EX / EM=230 / 340) is 147.6, the fluorescence intensity of fulvic acid (EX / EM=255 / 426) is 178, and the soluble microbial metabolites (EX / EM= 275 / 336) had a fluorescenc...

Embodiment 2

[0044] Example 2: A method for discriminating water inrush sources in coal mines. In a Z mine in the Ordos Basin, the TOC concentrations in different aquifers (body) are 0.87mg / L (surface water) and 0.72mg / L (quaternary water) respectively. ), 0.401mg / L (sandstone water), 0.283mg / L (Austrian ash water); UV 254 Contents are 0.025cm -1 (surface water), 0.016cm -1 (Quaternary water), 0.008cm -1 (sandstone water), 0.001cm -1 (Australian gray water). The three-dimensional fluorescence spectrum can more intuitively display the fluorescence characteristics of DOM in different water bodies: DOM in surface water and quaternary water both showed five fluorescence peaks, tryptophan (EX / EM=230 / 340) and fulvic acid in surface water (EX / EM=255 / 426) had obvious fluorescence peaks with fluorescence intensities of 161.60 and 182.00 respectively; only fulvic acid in Quaternary water had obvious fluorescence peaks with fluorescence intensities of 143.2. Tyrosine (EX / EM=205~210 / 310~314), try...

Embodiment 3

[0045] Example 3: A method for discriminating the source of water inrush in coal mines. In a mine area of ​​North China-type coalfield in the east, the TOC concentrations in different aquifers (body) are: 1.63mg / L (surface water), 0.731mg / L (fourth water), 0.305mg / L (Permian water), 0.42mg / L (Carboniferous water), 0.235mg / L (Cambrian water); UV 254 Values ​​are: 0.047cm -1 (surface water), 0.013cm -1 (quaternary water), 0.002cm -1 (Permian water), 0.008cm -1 (Carboniferous water), 0.001cm -1 (Cambrian water). The three-dimensional fluorescence spectrum can more intuitively display the fluorescence characteristics of DOM in different water bodies: DOM in surface water shows 5 fluorescence peaks, except for tyrosine, other substances have higher fluorescence peak intensities, tryptophan, fulvic acid, dissolved The fluorescence intensities of the metabolites of microorganisms and humic acid were 900.7, 781.8, 648.1 and 525.8, respectively. There is no humic acid-like fluore...

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Abstract

A method for distinguishing water bursting source of a coal mine comprises the specific steps as follows: 1, determining the hydrogeological characteristics of a target area; 2, conducting water sample collection and detection on the target area; 3, preliminarily analyzing the information of water samples in the target area; 4, determining the finger-print sensitive area in the three-dimensional fluorescence spectrum of DOM (Dissolved Organic Matter) in different water bearing layers in the target area; 5, establishing a hydrochemical characteristic information table of each water layer in the target area. The method provided by the invention is fast in distinguishing, and can establish the hydrochemical characteristics of different water bearing layers by utilizing the total content and the fluorescence characteristics of DOM in groundwater, so as to provide a technical method for distinguishing a water bursting source, provide hydrochemical characteristic data that can easily distinguish water bearing layers for water prevention and control, determine an accurate water bursting source for water shutoff in the process that water bursting happens in the coal mine, and buy precious time for emergency rescue and disaster relief.

Description

technical field [0001] The invention relates to the technical field of coal mine water inrush, in particular to a method for discriminating the source of coal mine water inrush. Background technique [0002] The water damage problem of the coal seam roof is one of the main problems of coal mine safety in China. How to quickly judge the source of water inrush is an important key to reduce water damage. [0003] However, the analysis shows that the roof and floor of the coal-bearing strata generally develop multi-layer water-filled aquifers, and in the process of coal mining, the roof water-conducting fracture zone, faults and water-conducting structures, and the water-rich aquifer are important factors that induce coal mine water disasters. factor. Over the years, hydrogeochemistry, as an important component of coal mine water prevention and control, can better reveal the interaction mechanism between groundwater and geological environment, and provide a good technical guara...

Claims

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Application Information

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IPC IPC(8): G01V9/02G01N21/64
Inventor 杨建靳德武王世东丁湘
Owner XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
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