Multi-level scale geological modeling and analysis method of water inrush channel in coal mine floor
An analysis method and geological modeling technology, which is applied in the field of multi-level scale geological modeling analysis of water inrush channels in coal mine floor, can solve the problem of lack of advantages in modeling efficiency and model dynamic update, inability to express the complexity of coal mine geological conditions, stay and other issues
Inactive Publication Date: 2017-02-15
CHINA UNIV OF MINING & TECH (BEIJING)
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Problems solved by technology
[0005] 1. Stratum modeling based on drilling, this method has a high degree of automation, but cannot deal with complex problems such as fractures
[0006] 2. The profile-based geological body surface modeling method can handle more complex geological modeling problems, but due to the need to maintain a large number of geological profile data, etc., it does not have advantages in modeling efficiency and dynamic update of the model
[0008] Existing 3D geological modeling methods for coal mines still mainly describe layered geological structures and simple fractures, and cannot yet express the complexity of coal mine geological conditions, and it is even more difficult to meet modeling problems such as coal mine disaster prediction. Water Forecasting and Evaluation Provides More Accurate Geological Models
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[0048] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar extensions without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.
[0049] Combine below figure 1 Further, the process of the multi-level scale geological modeling and analysis method for the coal mine floor water inrush channel of the present invention is described in detail.
[0050] The multi-level scale geological modeling analysis method of the coal mine floor water inrush channel of the present invention comprises the following steps:
[0051] 1) Obtain original geological data;
[0052] 2) Process the original geological data through multi-level scale data analysis to form a three-dime...
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The invention relates to a multistage dimension geologic modeling analysis method of a coal seam floor water gushing passageway. The method comprises the following steps: processing original geological data to form a three-dimensional multistage dimension geologic model modeling database; using data in the three-dimensional multistage dimension geologic model modeling database to perform modeling on a primary dimension foundation geologic framework model, a secondary dimension rock mass detailed geologic model and a tertiary dimension rock mass fracture network module; analyzing the shape of a coal seam floor fault and the influence on water gushing of elements of attitude; searching a minimum shearing resistance path in a rock stratum according to the extension resistance variation of the fracture, and finding out a coal seam floor water gushing passageway; performing contrastive analysis on the coal seam floor water gushing passageway and a multistage dimension geologic model, and giving a coal seam floor water gushing risk evaluation. The method has the characteristics that the evaluation efficiency and accuracy are improved by describing geologic features related to water gushing taking 'stratum-lithology-fracture' three-stage dimension in three-dimensional space, and the guarantee is provided for safety production in coal mines.
Description
technical field [0001] The invention relates to the field of coal mine water inrush evaluation, in particular to a multi-level scale geological modeling analysis method for a coal mine floor water inrush channel. Background technique [0002] Water inrush from the coal seam floor, especially the Austrian ash water inrush is a major geological disaster in coalfields in my country. At present, it is believed that in the groundwater system related to mine water inrush, the water inrush source conditions are basically formed before water inrush occurs, and the process of water inrush channel formation and related factors have direct significance for the prediction and prevention of water inrush . The formation process of fractured water inrush channels under the action of mining stress and water pressure is the core content and key issue of water inrush analysis. Among them, the geological structure and physical properties of rock mass play a decisive role in the occurrence of...
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IPC IPC(8): G06T17/05
Inventor 王占刚
Owner CHINA UNIV OF MINING & TECH (BEIJING)