Method for evaluating exploration and treatment effect of floor limestone water disaster ground advanced area of coal seam

A coal seam floor and evaluation method technology, applied in data processing applications, buildings, instruments, etc., can solve the problems of lack of effective evaluation methods for the detection and control effects of advanced areas, and achieve obvious timeliness, easy evaluation results, and shorten the evaluation cycle.

Pending Publication Date: 2021-08-24
中煤能源研究院有限责任公司 +1
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Problems solved by technology

[0003] The purpose of the present invention is to provide a wide application range, which can comprehensively reflect the actual treatment engineering effect, and can quantitatively characterize the evaluation method of the coal seam floor

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  • Method for evaluating exploration and treatment effect of floor limestone water disaster ground advanced area of coal seam
  • Method for evaluating exploration and treatment effect of floor limestone water disaster ground advanced area of coal seam
  • Method for evaluating exploration and treatment effect of floor limestone water disaster ground advanced area of coal seam

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Embodiment Construction

[0048] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0049] Such as figure 1 As shown, a kind of coal seam floor limestone water hazard ground advanced area detection control effect evaluation method provided by the present invention comprises the following steps:

[0050] (1) For the drilling trajectory evaluation project, it includes two first-level evaluation indicators, which are the plane spacing between the drilling holes and the drilling encounter rate of the target layer. The two first-level indicators are subdivided into six second-level indicators.

[0051] ① In the evaluation of the drilling plane spacing, the drilling spacing of each branch, the monitoring point spacing of the trajectory while drilling, the deviation between the horizontal projection in the control area and the design trajectory, and the deviation distance between the coordinates of the construction end hole point and the des...

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Abstract

The invention discloses a method for evaluating the exploration and treatment effect of a floor limestone water disaster ground advanced area of a coal seam. The method comprises the following steps of evaluating a drilling track in a ground long-distance directional drilling construction process, and scoring all two-stage indexes according to the evaluation standard; according to whether a drilled stratum has structural development or not, correspondingly selecting the evaluation standard of a normal stratum or an abnormal stratum, evaluating a drilling exploration result, and scoring all the two-stage indexes according to the evaluation standard; evaluating the grouting treatment effect, and scoring all the two-stage indexes according to the evaluation standard; and according to scoring results of three sub-items, calculating the sum of weight values corresponding to all evaluation item indexes according to the evaluation index calculation standard to obtain a comprehensive score of the treatment effect, and determining the quality grade of the exploration and treatment engineering effect of the floor limestone water disaster ground advanced area according to the comprehensive score and an evaluation grade table. The method is wide in application range and can comprehensively reflect the actual treatment engineering effect.

Description

technical field [0001] The invention belongs to the field of coal seam floor limestone water hazard evaluation, and in particular relates to a coal seam floor limestone water hazard ground-advanced area detection and treatment effect evaluation method. Background technique [0002] The limestone aquifer on the coal seam floor has the characteristics of high water pressure, large water volume, and rapid water inrush. In order to safely mine the coal seam above the floor limestone aquifer, it is necessary to take advanced treatment measures. It is an effective measure to ensure the safe mining of coal mines by using surface directional drilling technology to control limestone water ahead of time. However, at present, there is no recognized and reliable evaluation method for the exploration and control of coal seam floor limestone water hazards in the ground. The impact is large, the reliability of the evaluation results is poor, the scope of use is narrow, and it cannot full...

Claims

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Application Information

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IPC IPC(8): E21B47/005G06Q10/06G06Q50/26
CPCG06Q10/06393G06Q50/26
Inventor 廉法宪傅先杰程世贵周学年岳喜占金吕锋张爱华高生保张鸣夏辉丁湘蒲治国闫鑫张坤
Owner 中煤能源研究院有限责任公司
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