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System and method for predicting development height of water flowing fractured zone

A water-conducting fissure zone and water supply system technology, which is applied in the field of mine water inrush prevention and overlying rock fissure prediction, achieves the effect of strong distinction and great practical value

Pending Publication Date: 2021-12-07
国家能源集团宁夏煤业有限责任公司枣泉煤矿 +1
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Problems solved by technology

At present, on-site measurements are mostly used to predict the development height of the water-conducting fracture zone, and the observation results only reflect the development of the entire overlying rock fracture through the observation results of a few points, and are only applicable to the current mine

Method used

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  • System and method for predicting development height of water flowing fractured zone
  • System and method for predicting development height of water flowing fractured zone
  • System and method for predicting development height of water flowing fractured zone

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Embodiment Construction

[0018] An implementation case of the present invention is further described below in conjunction with accompanying drawing:

[0019] A system for predicting the development height of water-conducting fracture zones, including support system 1, rock formation simulation system 2, water supply system 3 and water storage system 4; firstly, according to the actual rock formation conditions on site, all aquifers in the overlying rock of the working face are determined through drilling exploration The number of layers and the relative position, build the rock formation simulation system 2 in proportion,

[0020] Each aquifer and aquifer are numbered and marked in sequence; a 12 mm thick plexiglass plate is installed on the front side of the support system 1, and between the plexiglass plate and the support system 1, and between the rock formation simulation system 2 and the support system 1 are all used The rubber sealing ring realizes high water pressure sealing and is fixed by an ...

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Abstract

The invention discloses a system for predicting the development height of a water flowing fractured zone. The system comprises a support system, a rock stratum simulation system fixed to the support system, a water supply system and a water storage system. The rock stratum simulation system comprises a water-bearing layer and a water-resisting layer; the water supply system is connected with the water-bearing layer, and the water supply system is filled with water containing different characteristic isotopes in advance; the water storage system is arranged at the bottom of the rock stratum simulation system. The rock stratum simulation system is constructed in proportion, water of different aquifers is effectively identified, the thousand-difference partial value of identification isotopes in a water storage system is tested, the development height of a water flowing fractured zone is predicted, the defects of a traditional field actual measurement method are overcome, and the method can be suitable for different rock stratum conditions; and a more accurate basis can be provided for predicting the development height of the water-flowing fractured zone.

Description

technical field [0001] The invention relates to the fields of prevention and control of water inrush in mines and prediction of overlying rock fissures, in particular to a system and method for predicting the development height of a water-conducting fissure zone. Background technique [0002] After the coal seam is mined out, the stress redistribution of the upper strata of the coal mine due to the influence of mining will cause the upper strata to be deformed and destroyed. From the mined-out area upwards, it is divided into three different characteristic zones: the collapse zone, the fracture zone and the bending subsidence zone. Among them, the collapsed zone and the fissure zone are good channels for water. When there is a water-rich layer above the coal seam, whether the overlying rock fissures penetrate the aquifer directly determines the safety of the working face. Accurately grasping the conductivity of the overlying rock fissures is the key to judging the occurrence...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06Q10/04G06Q50/02
CPCG06F30/20G06Q10/04G06Q50/02
Inventor 欧阳神央李响井源鑫杜昭雷永超马昆杨恒王建东单成方任予鑫曹国磊吕凤圆高华东吴来伟余宏
Owner 国家能源集团宁夏煤业有限责任公司枣泉煤矿
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