A Calculation Method for Analyzing the Damage Degree of Buildings Affected by Mining

Abstract

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. Select the horizontal deformation of the building deformation value after coal seam mining and the plane area that produces horizontal deformation, the oblique deformation and the plane area that produces oblique deformation, the curvature deformation and the plane area that produces curvature deformation, a total of six influencing factors are used as the buildings affected by mining Evaluation index for the degree of material damage. The analysis and calculation method of the damage degree of buildings affected by mining in the present invention evaluates the damage degree of buildings as a whole, can accurately analyze the impact and damage of buildings after coal seam mining, and determines whether the buildings can be used safely after coal seam mining It provides scientific basis and 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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