Method for analyzing and calculating building damage degrees caused by influence of mining moves

Abstract

The invention belongs to the technical field of mineral engineering, and relates to a method for analyzing and calculating building damage degrees caused by influence of mining moves. According to themethod, six influence factors such as horizontal deformations of building deformation values after coal mining, areas of planes generating the horizontal deformations, inclined deformations, areas ofplanes generating the inclined deformations, curvature deformations and areas of planes generating the curvature deformations are selected to serve as evaluation indexes for building damage degrees caused by mining influences. According to the method for analyzing and calculating building damage degrees caused by influence of mining moves, the building damage degree is evaluated on the whole, sothat the building damage conditions after coal mining can be correctly analyzed and scientific basis is provided for determining whether buildings after coal mining can be safely used or not; and themethod is suitable for wide popularization and application.

Description

technical field [0001] The invention belongs to the technical field of mining engineering and relates to an analysis and calculation method for the damage degree of buildings affected by mining. Background technique [0002] my country is particularly rich in coal resources, not only in plains and mountains, but also in many buildings. For a long time, my country has been using the method of strip mining or filling mining to extract a large amount of coal resources under buildings. After the coal resources under the building are mined, it will have an impact on the building, and in severe cases, it will cause damage to the building, and even cause the collapse of the building, endangering life safety. At present, after the mining of coal resources under buildings in my country, the impact and damage on buildings is mainly calculated by the probability integral method to calculate the deformation value of the building (including horizontal deformation ε, oblique deformation ...

AI Technical Summary

Problems solved by technology

After the coal resources under the building are mined, it will have an impact on the building, and in severe cases, it will cause damage to the building, and even cause the building to collapse, endangering life safety

At present, after the mining of coal resources under buildings in my country, the impact and damage on buildings is mainly calculated by the probability integral method to calculate the deformation value of the building (including horizontal deformation ε, oblique deformation i, and curvature deformation k), according to "Buildings, The building damage grade table in "Water Body, Railway and Main Shaft Coal Pillar Retention and Pressure Coal Mining Regulations" divides the damage degree of the building into grades I, II, III and IV, but only the deformation of the building is considered The single factor of value does not analyze and evaluate the damage degree of the building from the damage range, and cannot accurately reflect the damage degree of the building after the coal seam is mined under the building.

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