成考院校在线答案
- 2022-09-12 [单选] <p class="MsoNormal">7、<span style="mso-bidi-font-size:10.5pt;font-family:黑体">当矿脉和山坡的倾斜方向（<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）时，则由下盘掘进平硐穿过矿脉开拓矿床，这种开拓方法叫做下盘平硐开拓法。</span><span lang="EN-US" style="font-family:黑体;color:red"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal">8、<span style="mso-bidi-font-size:10.5pt;font-family:黑体">分层空场法有一个独有的显著缺点是（<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）。</span><span lang="EN-US" style="font-family:黑体;color:red"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal">3、<span style="mso-bidi-font-size:10.5pt;font-family:黑体">上向分层充填采矿法要求矿石的稳固性为（<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）。</span><span lang="EN-US" style="font-family:黑体;color:red"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal">11、<span style="mso-bidi-font-size:10.5pt;font-family:黑体">矿岩的坚固性是矿岩在（ <span style="mso-spacerun:yes"> </span>）下发生破坏的难易程度。</span><span lang="EN-US" style="font-family:黑体;color:red"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal">15、<span style="mso-bidi-font-size:10.5pt;font-family:黑体">无底柱分段崩落采矿法阶段内的上下分段进路应严格按（<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）。</span><span lang="EN-US" style="font-family:黑体;color:red"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal">4、<span style="mso-bidi-font-size:10.5pt;font-family:黑体">无底柱分段崩落采矿法对围岩稳定性的要求是（<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）。</span><span lang="EN-US" style="font-family:黑体;color:red"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal">10、<span style="mso-bidi-font-size:10.5pt;font-family:黑体">当矿体<span class="GramE">赋存在</span>地平面以下，矿体倾角大于<span lang="EN-US">45</span>度，或小于<span lang="EN-US">15</span>度，而埋藏较深的矿体，常采用（<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）开拓法。</span><span lang="EN-US" style="font-family:黑体;color:red"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal">20、<span style="mso-bidi-font-size:10.5pt;font-family:黑体">以下（<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）不是副井的作用。</span><span lang="EN-US" style="font-family:黑体;color:red"> <o:p></o:p></span></p>
- 2022-09-12 [单选] <p class="MsoNormal">17、<span style="mso-bidi-font-size:10.5pt;font-family:黑体">在井田中，每隔一定的垂直距离，掘进与矿体走向（矿体延展方向）一致的主要（<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>），把井田在垂直方向上划分为若干矿段，这些矿段称为阶段（或中段）。<span lang="EN-US"> <o:p></o:p></span></span></p>
- 2022-09-12 [单选] <p class="MsoNormal">9、<span style="mso-bidi-font-size:10.5pt;font-family:黑体">用充填法处理采空区时，（<span lang="EN-US"><span style="mso-spacerun:yes"> </span></span>）充填采空区。<span lang="EN-US"> <o:p></o:p></span></span></p>