Coal mine working face water gushing amount dynamic prediction method based on multi-order power system model

A dynamic system and dynamic prediction technology, applied in prediction, instrument, complex mathematical operation, etc., can solve problems such as difficulty in giving physical model and poor applicability, and achieve the effect of improving the accuracy of water inflow prediction

CN112036609APending Publication Date: 2020-12-04XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2020-12-04

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Abstract

The invention relates to a mine water gushing amount prediction method, belongs to the field of mine roof water disaster prevention and control and water resource protection, and particularly relatesto a coal mine working face water gushing amount dynamic prediction method based on a multi-order power system model. The method mainly comprises the steps of constructing a mathematical model of theactual drainage condition water gushing process of the mining area mined working face roof water head, solving the mathematical model of the drainage-free condition water gushing process of the miningarea mined working face roof water head, analyzing main control factors of the working face push-mining roof water gushing process, and researching and developing a multi-order power system model forpredicting the water gushing amount in the working face push-mining process. Based on working face water gushing amount prediction software development and prediction of a multi-order power system model, accurate and dynamic prediction of the coal mine working face water gushing amount is achieved, and the maximum water gushing amount, the normal water gushing amount and the occurrence position most concerned in the field of coal mine water disaster prevention and control are obtained.
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Description

technical field

[0001] The invention relates to a mine water inflow prediction method, which belongs to the field of mine roof water disaster prevention and water resource protection, and in particular relates to a coal mine working face water inflow dynamic prediction method based on a multi-stage dynamic system model. Background technique

[0002] The gradual westward shift of the coal production center is an important strategic layout for energy development in my country, and the Jurassic coal resources are mainly mined in the west. Coal seam mining causes water from the roof aquifer to enter the goaf. First, it brings water damage threats, and second, it causes the loss of groundwater resources. The prediction of water inflow from the roof of coal seam mining can not only provide basic data for the rational design of mine waterproof and drainage systems and the fine formulation of water disaster prevention and control technical schemes, but also provide reference for the...

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Embodiment

[0045] The content of the present invention is described in detail below in conjunction with specific embodiment: present embodiment implements under the premise of the technical solution of the present invention, provides detailed implementation and steps, but protection scope of the present invention is not limited to following embodiment.

[0046] This embodiment is mainly aimed at the prediction of water inflow in coal mine working face. By systematically analyzing the dynamic and static water inflow modes of groundwater moving to the large well in the goaf, a dynamic system model for the superposition and release of water inflow is constructed. The amount of water released, inversely calculate the power system model of water inflow in the working face without dredging, use multivariate statistical methods to analyze the main control factors of key parameters, establish the mathematical relationship between key parameters and main control factors, and combine the mathematica...