20春学期《井巷掘进与施工Ⅰ》在线平时作业2

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<div>《煤矿安全规程》规定：在双轨运输巷中，<span>2列列车最突出部分之间的距离，对开时不得小于（&nbsp;）</span>。</div>
A:0.2m
B:&nbsp;0.4m<span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>
C:&nbsp;0.6m<span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>
D:&nbsp;0.8m

<div>如顶板围岩不太稳定：可以爆破后立即喷射一层（<span>&nbsp;）厚的混凝土封顶护帮，然后再打锚杆，最后喷射混凝土和工作面掘进平行作业，直至喷射厚度达设计要求</span>。</div>
A:10mm～<span>20mm</span><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>
B:20mm～<span>30mm</span><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>
C:30mm～<span>40mm</span><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>
D:30mm～<span>50mm</span>

<div>风井马头门的拱顶坡度为<span>(<span>&nbsp;&nbsp; )</span></span>。</div>
A:10&deg;～<span>15&deg;</span>
B:15&deg;～20&deg;<span>&nbsp;</span>
C:&nbsp;20&deg;～25&deg;
D:16&deg;～18&deg;

<div>锚网支护是以（<span><span>&nbsp;&nbsp; </span>）为主要构件并辅以其他支护构件而组成的锚杆支护系统。</span></div><div><span><span></span></span></div>
A:锚杆
B:锚索
C:金属网<span><span>&nbsp;</span></span>
D:钢筋梯

<div>炸药按其用途可分为起爆药、（<span>&nbsp;）和火药（或发射药）</span></div><div><span><span></span></span></div>
A:铵油炸药
B:猛炸药
C:铵锑炸药
D:水胶炸药

<div>垂直煤仓可用锚喷支护或<span>C20素混凝土支护，素混凝土支护时可取（<span>&nbsp;&nbsp; </span>）。</span></div>
A:&nbsp;250～<span>350mm</span>
B:150～250mm<span>&nbsp;&nbsp;&nbsp;&nbsp; </span>
C:&nbsp;200～300mm<span>&nbsp;&nbsp;&nbsp; </span>
D:300～400mm

<div>岩石铵梯炸药有效使用期限为（<span>&nbsp;）个月。</span></div>
A:2
B:4
C:6
D:8

<div>半煤岩巷中岩石面积为巷道断面面积的（<span><span>&nbsp;&nbsp; </span>）</span></div><div></div>
A:大于<span>1／5、小于2／5</span><span>&nbsp;</span>
B:大于<span>1／5、小于3／5<span>&nbsp;&nbsp;</span></span>
C:大于1／5、小于4／5&nbsp;
D:大于<span>2／5、小于4／5</span>

<div>煤矿许用品种还必须加入适量的（<span><span>&nbsp;&nbsp; </span>）作为消焰剂，以吸收热量、降低爆温、防止引起瓦斯爆炸</span>。</div><span><span>D</span></span>
A:柴油<span><span>&nbsp;</span></span>
B:木粉
C:食盐<span>&nbsp;</span>
D:&nbsp;镁铝粉

<div>当煤、岩的强度都不高时，应选用（<span>&nbsp;）。</span></div>
A:煤电钻钻眼
B:岩石电钻<span>&nbsp;</span>
C:&nbsp;风镐
D:&nbsp;&nbsp;液压钻车

<div>按玻璃钢锚杆杆体表面形状可分为（<span><span>&nbsp;&nbsp; </span>）</span>。</div><div><span><span></span></span></div>
A:麻花式
B:&nbsp;螺纹式
C:粗糙表面式
D:其它

<div>斜井掘进工作面常用的潜水泵，有（<span>&nbsp;）三种</span>。</div><div><span></span></div>
A:&nbsp;风动潜水泵
B:手提电泵
C:密封式电泵
D:普通水泵

<div>按成因不同，岩石可分为（<span>&nbsp;）三大类。</span></div><div><span><span></span></span></div>
A:岩浆岩
B:沉积岩
C:变质岩
D:片麻岩

<div>树脂锚固剂长度可根据需要确定，一般在<span>300～900 mm之间，常用的长度有（<span>&nbsp;&nbsp; </span>）等几种。</span>。</div><div></div>
A:300 mm
B:350 mm
C:500 mm
D:600 mm

<div>罐梁按截面形式分，有（<span><span>&nbsp;&nbsp; </span>）。</span></div><div><span><span></span></span></div>
A:工字钢罐梁
B:型钢组合封闭形空心罐梁
C:整体轧制的封闭形空心罐道
D:异形罐梁

<div>钻锚注锚杆由（<span><span>&nbsp;&nbsp; </span>）组成。</span></div>
A:中空杆体
B:一次性钻头
C:连接套管
D:托板和螺母

<div>交岔点设计包括交岔点的（<span><span>&nbsp;&nbsp; </span>）等几部分。</span></div>
A:平面尺寸设计<span><span>&nbsp;&nbsp;</span></span>
B:断面形状及尺寸设计
C:工程量
D:&nbsp;材料消耗量计算

<div>根据爆破作用指数大小不同，爆破漏斗的形式有（<span>&nbsp;）。</span></div>
A:标准抛掷漏斗
B:&nbsp;加强抛掷漏斗
C:减弱抛掷漏斗
D:松动漏斗

<div>立井表土普通施工法主要可采用（<span><span>&nbsp;&nbsp; </span>）。</span></div>
A:井圈背板普通施工法<span><span>&nbsp;</span></span>
B:&nbsp;吊挂井壁施工法
C:板桩法
D:钻井法

<div>掘进工作面的炮眼，按其用途和位置可分为（<span><span>&nbsp;&nbsp; </span>）</span>。</div><div></div>
A:掏槽眼&nbsp;
B:辅助眼&nbsp;
C:周边眼
D:其它

<span style="FONT-SIZE: 10.5pt; COLOR: black; FONT-FAMILY: 仿宋_GB2312; mso-hansi-font-family: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">当其它条件相同时，岩石的密度在一定程度上与埋藏深度有关，靠近地表的岩石密度往往较小，而深部的致密的岩石一般具有较大的密度。</span>
A:错误
B:正确

<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 仿宋_GB2312; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt">为了保持巷道顶板的完整性，减少支护的工时和材料费用，煤一岩巷道以挑顶情况居多。</span>
A:错误
B:正确

<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 仿宋_GB2312; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt">掘进工作面的炮眼，其爆破顺序必须是延期起爆，即先掏槽眼，其次辅助眼，最后周边眼。</span>
A:错误
B:正确

<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 仿宋_GB2312; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt">为减少钻眼产生的煤尘，应推广采用湿式煤电钻。</span>
A:错误
B:正确

<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 仿宋_GB2312; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-size: 12.0pt; mso-font-kerning: 1.0pt">在有瓦斯的工作面起爆时，所有电雷管的总延期时间可以超过<span lang="EN-US">130 ms</span></span><span style="FONT-SIZE: 10.5pt; COLOR: black; FONT-FAMILY: 仿宋_GB2312; mso-hansi-font-family: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">。</span>
A:错误
B:正确