Friday, March 29, 2024
Friday, March 29, 2024
问题:问答题无底柱分段崩落法在覆岩下进行放矿,根据矿体赋存条件和岩石性质的不同,试简述崩落矿石上覆岩石层的几种形成方法。
Tuesday, May 7, 2024
Monday, March 18, 2024
Friday, February 16, 2024
Thursday, September 15, 2022
问题:填空题影响采煤方法选择的因素主要有:();();()和矿井经济效益。
Sunday, October 22, 2023
Tuesday, April 9, 2024
问题:填空题按照回采时地压管理方法的不同,采矿方法可分为();()和充填采矿法。
Sunday, April 21, 2024
Sunday, December 11, 2022
Wednesday, January 25, 2023
Tuesday, January 30, 2024
Saturday, April 8, 2023
问题:填空题金属矿山主溜井,按外形特征与转运设施可分为();();()三种形式。
Tuesday, April 9, 2024
问题:填空题采区下部车场绕道内线路布置方式按照绕道线路与大巷线路的相互位置关系可分为();()和()三种。
Tuesday, January 30, 2024
Tuesday, May 7, 2024
Saturday, January 27, 2024
Thursday, September 22, 2022
问题:填空题采煤工作面循环作业图表主要包括:();();()和工作面布置图。
Thursday, September 22, 2022