关于垂直深孔球状药包落矿阶段矿房法(VCR法)论述不正确的是 -题库考试答案搜索网

关于垂直深孔球状药包落矿阶段矿房法(VCR法)论述不正确的是

单选题

2021-07-18 18:52

A、该方法使用高密度、高爆速、高威力炸药, 因此爆破成本相对较高;
B、使用球状药包崩矿时,残留于炮孔中的爆后易燃气体及二次硫尘的爆炸及爆燃等问题是该方法应用时的安全隐患之一;
C、使用该方法时,需对爆破产生的地震波的震动速度进行测定,以及研究其传播规律;
D、由于采用深孔爆破,因此其大块产出率较高,且矿石爆破效果不理想。

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正确答案

D

试题解析

D

标签：地质学专升本结晶学及矿物学期末考试资源勘查工程

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