本文所讨论矿床的特点是:上盘围岩一般为中等稳固,∫=6～10;矿体一般为中等稳固或不够稳固,f=4～8;倾角一般为10～45°;厚度一般为4～10米左右.在国内非金属矿和金属矿一般都有此类矿床;本文针对此类矿体的采矿方法,作如下的研究和探讨. 属此类型的国内某矿体共分上、中、下三层矿;分别产于灯影灰岩底部、中部和顶部.上层矿与中层矿相距150米,因其厚度 The characteristics of the deposit discussed in this article are as follows: the surrounding rock of the hanging wall is generally moderately stable, ∫ = 6 ~ 10; the orebody is generally moderately stable or not stable, f = 4 ~ 8; the dip angle is generally 10 ~ 45 °; 4 to 10 meters in the domestic non-metallic mineral and metal ore generally have such deposits; this article for the mining method of this orebody, for the following research and discussion .This type of a domestic ore body is divided, Middle and lower three mine; were produced at the bottom, middle and top of the light shadow limestone.The upper mine and the middle mine is 150 meters away, because of its thickness