Deep shaft engineering water inrush disaster multi-source information evaluation method

A technology of multi-source information and evaluation method, which is applied in the field of multi-source information evaluation of water inrush disasters in deep shaft engineering, can solve the problem of few methods for predicting water inrush in shafts, and achieves the advantages of strong practicability, solving accidental errors and comprehensive and accurate analysis methods. Effect

Pending Publication Date: 2021-01-19
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

Most of the current water inrush predictions focus on the roof, floor and tunnel, and there are few water inrush prediction methods for shafts in the early stage of well construction

Method used

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  • Deep shaft engineering water inrush disaster multi-source information evaluation method
  • Deep shaft engineering water inrush disaster multi-source information evaluation method
  • Deep shaft engineering water inrush disaster multi-source information evaluation method

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Embodiment Construction

[0042] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0043] Aiming at the problem of insufficient prediction accuracy in the single index evaluation of current shaft water inrush evaluation, the present invention provides a multi-source information evaluation method for deep shaft engineering water inrush disasters.

[0044] like figure 1 As shown, the method includes the following steps:

[0045] (1) Establish a multiple information evaluation system:

[0046] Based on the factors affecting the risk of water inrush in deep shafts and the difficulty of data acquisition, six factors affecting structural fissures, fault fractures, water abundance, water inrush points, water conductivity, and geostress were selected as evaluation indicators to establish a multivariate information model. Evaluation System; ...

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Abstract

The invention provides a deep shaft engineering water inrush disaster multi-source information evaluation method, and belongs to the technical field of mine water inrush risk evaluation. The method comprises the following steps: firstly, establishing a multivariate information evaluation system, then carrying out dimensionless treatment on original indexes, then calculating the weight of influencefactors, and finally constructing a water inrush risk evaluation model. According to the method, a water inrush risk evaluation index system is established according to factors influencing the vertical shaft water inrush risk, test methods of different influence factors are provided, then an analytic hierarchy process is used for determining weights of different factors, and finally the verticalshaft water inrush risk is evaluated based on a multi-source information set model, wherein the tectonic fissure zone, the fault fracture zone, the water-rich property, the water inrush point, the water conductivity and the crustal stress are selected to establish a multivariate information evaluation system. According to the method, accidental errors in the single factor analysis process are solved, a more comprehensive and accurate analysis method is provided, a reliable basis is provided for construction decision making, and the practicability is higher.

Description

technical field [0001] The invention relates to the technical field of mine water inrush risk assessment, in particular to a multi-source information assessment method for deep shaft engineering water inrush disasters. Background technique [0002] With the depletion of shallow mineral resources, metal mines turn to deep mining. Deep shafts are the throat of deep well mining and the main passage connecting the surface and the underground. Shaft construction passes through different geological structures from top to bottom. When the construction encounters complex geological environments such as aquifers, fractured zones, and water-conducting faults, wellbore water inrush accidents are prone to occur, causing casualties, equipment damage, delays in construction, and even flooding. Wells and other serious consequences will bring huge economic and property losses. During the construction of the main shaft of Guotun Coal Mine, the air shaft of Hegang Niaoshan Coal Mine, the No....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/02
CPCG06Q10/0635G06Q10/06393G06Q50/02
Inventor 纪洪广张同钊张月征由爽向鹏刘力源王轶民
Owner UNIV OF SCI & TECH BEIJING
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