Method for determining damage degree of overlying strata in shallow coal mining based on underground reservoir
A technology for underground reservoirs and coal mining, which is applied in the direction of using mechanical devices, using liquid/vacuum for liquid tightness measurement, measuring devices, etc., can solve the problems of difficult operation and analysis of detection instruments, high cost and low efficiency, etc. To achieve the effect of quick and simple judgment, simple method and reliable results
Pending Publication Date: 2022-03-08
CHNA ENERGY INVESTMENT CORP LTD +2
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[0003] The technical problem to be solved by the present invention is the problems of difficult operation and analysis of detection instruments, high cost and low efficiency existing in the existing mining overburden damage judgment method. For this reason, the present invention proposes a shallow Determination method of damage degree of overlying strata in coal mining
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[0051] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0052] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...
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The invention discloses a shallow coal mining overlying rock damage degree determination method based on an underground reservoir, which comprises the following steps: determining a subsidence area in a shallow coal mining area and underground reservoir distribution information in the subsidence area, obtaining the surface water seepage amount of the subsidence area, monitoring the water quantity change information of the underground reservoir in the subsidence area, and determining the damage degree of the shallow coal mining overlying rock. And determining the water seepage strength of the overlying strata in the subsidence area according to the earth surface water seepage amount and the water amount change information of the underground reservoir, and determining the damage degree of the overlying strata according to the water seepage strength of the overlying strata. According to the scheme, based on the underground reservoir system under the coal mine, the change of the water seepage capacity of the overlying strata above the underground reservoir is reflected through the change of the water storage capacity of the underground reservoir, the water seepage capacity of the overlying strata serves as the influence factor of the damage degree of the overlying strata, and a specific judgment method is provided. According to the scheme, the method is simple, the result is reliable, and the effect of rapidly and simply judging the ecological damage of the overlying strata in coal mining is achieved.
Description
technical field [0001] The invention relates to the field of detection of ecological damage in coal mine mining, in particular to a method for determining the damage degree of overlying strata in shallow coal mining based on an underground reservoir. Background technique [0002] Mining overburden damage change is a dynamic process. Conventional geological exploration methods are difficult to obtain continuous change information throughout the mining cycle. High-precision geophysical detection technology must be integrated to comprehensively detect the surface layer and overlying rock mass to study mining overburden. To study the law of rock changes, satellite remote sensing, image radar, measurement and analysis are mainly used. The equipment required for this type of detection technology is a high-precision instrument, which is difficult to operate and analyze. The time and money costs of remote sensing monitoring methods are higher, and the threshold for use is also high...
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IPC IPC(8): G01N19/08G01M3/02
CPCG01N19/08G01M3/02Y02A10/40
Inventor 王霄李井峰郭强李庭蒋斌斌杨英明邢朕国张海琴刘兆峰
Owner CHNA ENERGY INVESTMENT CORP LTD