Study on the surface movement and deformation caused by mining and its influence to the dams under the reservoir on Yanghe coal
ZHANG Yanbin
HAN Yapeng
LI Dehai
ZHANG Jin
Abstract：Focusing on the problem of a Modongwang reservoir and its dam structure above the 31 district of Yanghe coal east wing on Zhengzhou coal group,the probability integral method parameters and angular parameters of surface movement and deformation were obtained by means of the probability integral method for the curve fitting of the measured data of the 31071 working face above the surface observation station.The law of surface movement and deformation affected by the influence of mining was analyzed by using the surface movement deformation curve.The result show that,by the restrictive production measures in the area of reservoir and dam,it appeared a certain level of damage and reached the levelⅠin the end of the testing working face,then after the exploitation of all the mining face in the region,the dam will achieve the maximum extent of the damage with the levelⅡ,which does not exceed allowable deformation value of coal mining rules under baildings,railways and water bodies.
Keywords：mining subsidencesurface movement and deformationmining under reservoirprobability integral methodpredicting parameters
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 16-21 )