中国金属学会地下采矿学术委员会和安徽省金属学会采矿学术委员会于1986年10月7日至11日在铜陵市联合召开了全国第四次崩落采矿法学术讨论会。出席这次会议的有冶金、有色、化工、建材等系统的53个单位98名代表。会议收到论文74篇,其中采矿方面的35篇,损失贫化方面的15篇,放矿理论和放矿管理方面的20篇,其它方面的有4篇。大会宣读了论文并进行了分组讨论。会议期间,部分代表还就铜陵有色金属公司狮子山 The Academic Committee of Underground Mining of China Metallurgical Society and the Academic Committee of Mining of Anhui Province Metallurgical Society jointly held the fourth national seminar on mining technology of caving in Tongling City from October 7 to October 11, 1986. There were 98 representatives from 53 units of metallurgical, non-ferrous, chemical and building materials systems attending this meeting. The conference received 74 papers, of which 35 were in mining, 15 in depletion, 20 in ore drawing and ore drawing and 4 in other areas. The conference read the papers and conducted group discussions. During the meeting, some delegates also Lion Rock on Tongling Nonferrous Metals Company