With the exploitation of underground coal resources,the problem of surface subsidence and damage caused by it is becoming increasingly serious.Taking the working face of A Coal Mine in western Henan as an example,a mobile observation station was set up to study the movement law of surface rock layers caused by mining in medium and deep mines,in order to improve the recovery rate of mineral resources,control surface subsidence,and provide scientific basis for rational mining and setting of protective coal pillars in the mining area.
关键词
中深井/岩移观测/地表沉降/观测方法
Key words
medium and deep mine/rock movement observation/ground surface settlement/observation method