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Method for judging alarm threshold value for water disaster micro-earthquake

A water damage and microseismic technology, which is applied to earth drilling, mining equipment, mining equipment, etc., can solve problems such as inability to dynamically adjust

Pending Publication Date: 2021-11-05
CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The invention provides a method for judging the alarm threshold of water damage and micro-seismic, which solves the technical problem that cannot be dynamically adjusted for different current environments

Method used

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  • Method for judging alarm threshold value for water disaster micro-earthquake

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Embodiment 1

[0046] The embodiment is basically as attached figure 1 shown, including:

[0047] S1. Using geophysical sensors, geochemical sensors, and hydrological sensors to acquire geophysical data, geochemical data, and hydrological data in real time, respectively;

[0048] S2. Perform fusion processing on geophysical data, geochemical data and hydrological data to obtain fusion data;

[0049] S3. Using the deep learning space-time sequence prediction algorithm to optimize the training of the fusion data, and obtain the fusion data after training;

[0050] S4. On the basis of the fused data after training, combine the static indicators of coal seam water inrush influencing factors and real-time monitoring dynamic indicators to construct an intelligent early warning model for classification of water hazard early warning levels;

[0051] S5. According to the intelligent early warning model, classify the water damage microseisms to obtain the level of water damage microseisms, and deter...

Embodiment 2

[0061] The only difference from Embodiment 1 is that in S41, the preset ratio is generated in a random manner, so that the data content of the training set and the test set can be continuously updated while being random, and the calibration effect can be improved.

Embodiment 3

[0063] The only difference from Embodiment 2 is that after the corresponding alarm threshold is determined according to the water damage microseismic level, the alarm threshold is also corrected. In this embodiment, the water damage microseism is caused by the pressure and impact of groundwater on the mine floor: on the one hand, because the groundwater is in a state of continuous flow, the groundwater will have an impact on the mine floor; on the other hand, the pressure of the groundwater will also Under the influence of these two aspects, the groundwater forms a water damage micro-seismic on the mine floor.

[0064] Relevant geological exploration research results show that the groundwater in the mine floor is usually flowing, and the fine particles of the rock layer or coal seam under the mine floor will gradually melt into the groundwater. Due to the great difference in the composition of different rock layers or coal seams, the composition of the groundwater is different ...

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Abstract

The invention relates to the technical field of mine water disaster monitoring, in particular to a method for judging an alarm threshold value for water disaster micro-earthquake. The method comprises the following steps that S1, geophysical prospecting data, geochemical prospecting data and hydrological data are obtained in real time; S2, fusion processing is carried out on the geophysical prospecting data, the geochemical prospecting data and the hydrological data to obtain fusion data; S3, optimization training is carried out on the fusion data by adopting a deep learning space-time sequence prediction algorithm to obtain trained fusion data; S4, on the basis of the trained fusion data, an intelligent early warning model of water disaster early warning grade classification is constructed in combination with static indexes of coal seam water inrush influence factors and real-time monitoring dynamic indexes; and S5, according to the intelligent early warning model, grade classification is carried out on the water disaster micro-earthquake to obtain a water disaster micro-earthquake grade, and according to the water disaster micro-earthquake grade, a corresponding alarm threshold value is determined. The alarm threshold can be dynamically adjusted according to different current environments, and the technical problem that dynamic adjustment cannot be carried out according to different current environments is solved.

Description

technical field [0001] The invention relates to the technical field of mine water damage monitoring, in particular to a method for judging an alarm threshold for water damage microseismic. Background technique [0002] Mine water damage is an important factor restricting the development of coal production. With the deepening of mine mining, the water pressure of Ordovician and Cambrian limestone confined aquifers at the base of coal-bearing strata continues to increase, and the potential risk of water inrush also increases. The increase has gradually aroused the great attention of the coal industry. Since coal mine water damage is the result of a combination of various factors, the occurrence of water inrush not only includes changes in the mechanical state of the rock mass, but also changes in the seepage field of groundwater. Therefore, the occurrence of water damage can be manifested through changes in various physical parameters, such as , water pressure, water temperat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F17/18E21F17/00G06F30/27
CPCE21F17/18E21F17/00G06F30/27
Inventor 鲜鹏辉颜恭彬段天柱张玉东仇念广闫国才杨聘卿黄波潘磊袁永榜黄利华翟封
Owner CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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