overburden mining
1.The study of mining-induced fracture distributions is closely related to some mining engineering problems such as mining under or above water bodies,relieved coalbed methane drainage, overburden bed separation grouting and mining subsidence control etc.
2.In order to systematically summarize research outcome of mining under buildings and further accelerate its development, by consulting a large number of literature and making synthetic analysis, this paper presents an overall summary of the latest research outcome of mining under buildings from the following three aspects: protecting measures of mining under ground, of buildings on the surface, and grouting of overburden, and analyzes the current research state of coordinating action of ground, foundation and structure of buildings in mining area.
3.Based on its special geological and mining conditions of Qidong Colliery, the cause of water bursting of loose aquifer in the 4th lineage in 7(subscript 1)14 full-mechanized mining face of the first mining area was analyzed and technology method of preventing the 4th loose aquifer was discussed according to the occurrence characteristics of loose aquifer and damage characteristics of overburden rock in 7(subscript 1) Coal Seam.
4.It is shown how control of the melting of the coating on aluminum particles in a mining explosive helps control the split of the total energy released into shock energy, that supports the detonating shock wave and heave energy, that heaves the overburden off the ore body.
