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Quantitative prediction method of clastic rock aquifer water yield property of working seam roof and floor

A water-rich, clastic rock technology is applied in the field of quantitative prediction of water-rich water-rich clastic aquifers in the roof and floor of mining coal seams, and can solve the problems of failure to establish a quantitative evaluation model for stratigraphic structure and poor applicability.

Active Publication Date: 2016-06-29
SHANDONG UNIV OF SCI & TECH
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Problems solved by technology

This patent proposes a three-map method for floor water inrush evaluation, and conducts research on the water-rich zone of the aquifer. However, the traditional drilling data, geophysical prospecting data and hydrogeological test analysis methods are used in the patented water-rich zone of the aquifer, which is not sufficient. Considering the impact of stratum lithology and its combination on water-richness, no quantitative evaluation model for stratum structure has been established, and the research method of water-richness zoning is more suitable for mining areas with rich hydrogeological data, and suitable for areas with low degree of hydrogeological exploration Poor sex

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  • Quantitative prediction method of clastic rock aquifer water yield property of working seam roof and floor
  • Quantitative prediction method of clastic rock aquifer water yield property of working seam roof and floor
  • Quantitative prediction method of clastic rock aquifer water yield property of working seam roof and floor

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Embodiment Construction

[0056] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0057] The main coal seam of a coal mine is 3 coal seams, and the shallow coal resources are exhausted, so the deep coal resources need to be mined. Since the deep coal resources occur under the lake, it does not have the conditions for large-scale hydrogeological exploration. The mining of adjacent mines shows that the roof water damage in the deep No. 3 coal seam is more serious. In order to find out the threat of roof water damage, it is necessary to study the water-richness of the sandstone aquifer on the roof of the No. 3 coal seam in the deep mining area.

[0058] Refer to attached figure 1 , the method for predicting water-richness of clastic aquifers in coal seam roof and floor clastic aquifers in areas with low degree of hydrogeological exploration in the present invention, the technical scheme adopted includes the following steps:

[0059] 1...

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Abstract

The invention discloses a quantitative prediction method of the clastic rock aquifer water yield property of a working seam roof and floor. The method comprises the following steps of: (1) determining main control factors of the clastic rock aquifer water yield property; (2) determining roof and floor rock stratum disturbance ranges caused by coal seam exploitation; (3) evaluating deposition characteristics of a researched area; (4) carrying out quantitative evaluation on the geological construction complexity degree of the researched area; (5) construction a lithological structure-geological construction prediction model, and comprehensively evaluating the clastic rock aquifer water yield property; and (6) carrying out scientific division and quantitative evaluation on the clastic rock aquifer water yield property. The method provided by the invention overcomes the defect that former people fail to effectively evaluates the clastic rock aquifer water yield property under the condition of deficient hydrogeology data.

Description

technical field [0001] The invention relates to a method for quantitatively predicting the water-richness of clastic aquifers on the roof and floor of mining coal seams, in particular to a method for quantitatively predicting the water-richness of clastic aquifers on the roof and floor of coal seams in coal mines with relatively low degrees of hydrogeological exploration. Background technique [0002] Mine water inrush is one of the main types of disasters that affect the safety of coal mine production. With the continuous increase in the scale and intensity of coal resource mining in my country, mine water inrush disasters are more prominent, especially during the construction and mining of mines with complex hydrogeological types. Water hazard risks and hazards are increasingly serious, often accompanied by unfavorable factors of interrelated hydrogeological conditions. Sand (conglomerate) and other clastic rock aquifers, as an important source of mine inrush water, are wid...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/02
CPCG06Q10/04G06Q50/02
Inventor 魏久传张伟杰尹会永谢道雷郭建斌
Owner SHANDONG UNIV OF SCI & TECH
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