Safety Analysis Of Constructing Speedway In Hongling Coal Mining Settlement Area

Deformation of mining subsidence has greater impact on the sugared bearing capacity and stability when construction speedway on the top of gob, the tilt caused by ground subsidence of gob will lead to the vehicles focus offset; horizontal deformation and moving making the road the tension cracking, compression uplift, pavement damage arising from partial abscission layer.Shen-Da, Shen-Shan, Shen-Dan expressway pass through Hung Ling coal mining area, in order to safe, economical way to build highways, the stability and harm of expressway needs analysism.According to highway alignment map, referring to the current coal mining and planning of Hung Ling coal mining, the paper analyses the safety of the north highway connecting line through the probability integral and ANSYS finite element numerical simulation, which can not guarantee that highway construction security. At the same time, on the highway connecting southern route through the strata structural characteristics of ANSYS finite element analysis and numerical simulation,the result shows that the deformation of the gob through the Southern lines is stability and can meet highway construction.