I-shaped water retaining dam for ground-water reservoir in coal mine

An underground reservoir, I-shaped technology, applied in underground chambers, mining equipment, mining equipment, etc., can solve the problems of unproposed treatment methods and unconsidered local weakness at the junction of the dam body and the top and bottom slabs

Active Publication Date: 2019-05-31
CHINA UNIV OF MINING & TECH (BEIJING)
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Problems solved by technology

Although this patent has carried out relevant research on the retaining dam of the coal mine underground reservoir, the patent focuses on the stress on the main dam surface of the dam body, and does not consider the local weakness of the junction between the dam body and the roof and floor, let alone propose any means of treatment

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  • I-shaped water retaining dam for ground-water reservoir in coal mine
  • I-shaped water retaining dam for ground-water reservoir in coal mine
  • I-shaped water retaining dam for ground-water reservoir in coal mine

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Embodiment Construction

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0028] In describing the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", " "Outside" and other indication orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device, component or structure must have a specific orientation, Construction or ...

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Abstract

The invention discloses an I-shaped water retaining dam for a ground-water reservoir in coal mine. The I-shaped water retaining dam is located between coal pillar dam bodies so as to be used for isolating the ground-water reservoir from corresponding coal roadways. The I-shaped water retaining dam comprises an upper flange, a web plate and a lower flange from top to bottom, the vertical face of adam body is in an I shape, the upper flange stretches into a roadway roof, the two ends of the web plate are embedded into the coal pillar dam bodies, and the lower flange stretches into a bottom plate. Because the I-shaped water retaining dam is located in an underground coal rock bed roadway, the surrounding rock stress acting on the I-shaped water retaining dam is relatively complicated, the phenomenon of water-seepage of a weak part on the upper portion of a traditional I-shaped water retaining dam is effectively overcome, the punching stress of the dam body to the bottom plate of the roadway is reduced, the stability of the dam body and the overall stability are improved, and the requirements for water storage and the safety performance of the ground-water reservoir in the coal mine are met.

Description

technical field [0001] The invention relates to the intersecting fields of mining engineering and water conservancy engineering, in particular to an I-shaped retaining dam of a coal mine underground reservoir. Background technique [0002] The construction of sluice gates and sluice walls is regulated in the "Coal Mine Safety Regulations" and "Coal Mine Water Prevention and Control Regulations", which are mainly based on the perspective of water prevention and control, without considering the long-term role of underground reservoir water storage; The construction of the dam body has been stipulated in more detail. Although there have been related studies on the construction of the retaining dam of the distributed underground reservoir in coal mines, the construction of the dam body of the surface reservoir and the construction of the retaining dam of the underground reservoir are obviously different. [0003] Comparing the dam body of the underground reservoir of the coal mi...

Claims

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Application Information

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IPC IPC(8): E21F17/103E21D11/08E21D21/00E21D20/02
CPCE21F17/103E21F17/16
Inventor 单仁亮张浩琛孔祥松
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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