20春学期《井巷掘进与施工Ⅰ》在线平时作业1

adminhan

<div>根据矿井正常涌水量和最大涌水量选择排水管的直径和敷设排水管趟数。一般情况下要设置（<span><span>&nbsp;&nbsp; </span>）趟，其中一趟作为备用。。</span></div><div>A&nbsp;<span><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B&nbsp;</span><span> C</span>&nbsp;<span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; D </span></span></div>
A:1～<span>2&nbsp;<span>&nbsp;</span></span>
B:2～3<span>&nbsp;&nbsp;&nbsp;</span>
C:3～4<span>&nbsp;</span>
D:2～5

<div>最坚固的岩石的坚固性系数<em><span>f</span></em>一般在（ ）左右。</div><div><span></span></div>
A:5<span>&nbsp;</span>
B:10&nbsp;
C:&nbsp;15&nbsp;
D:20

<div>煤巷掘进过程中，为了防止崩倒支架，多将掏槽眼布置在工作面的（<span>&nbsp;）。</span></div><div><span><span></span></span></div>
A:上部
B:中下部<span>&nbsp;</span>
C:下部
D:中间

<div>锚杆桁架是由在巷道肩窝处顶板上，沿（<span><span>&nbsp;&nbsp; </span>）方向安装钢丝绳、钢筋或钢铰线锚杆，并用拉紧装置将锚杆的外露部分连接起来，再背上木楔组成。</span></div>
A:20&deg;～<span>30&deg;</span>
B:&nbsp;30&deg;～<span>40&deg;</span>
C:&nbsp;45&deg;～<span>60&deg;</span>
D:50&deg;～<span>60&deg;</span>

<div>岩石破碎以后的体积将比整体状态下增大，这种性质称为岩石的（<span>&nbsp;）。</span></div><div><span><span></span></span></div>
A:膨胀性<span><span>&nbsp;</span></span>
B:碎胀性<span>&nbsp;&nbsp;&nbsp; </span>
C:崩解性<span>&nbsp;&nbsp; </span>
D:软化性

<div>《煤矿安全规程》规定，采用松动爆破时，超前于掘进工作面的距离不得小于（<span>&nbsp;）</span></div><div></div>
A:2m<span>&nbsp;</span>
B:3m<span>&nbsp;</span>
C:4m<span>&nbsp;</span>
D:5m<span>&nbsp;</span>

<div>《煤矿安全规程》规定，水力冲孔开始时，工作面前方应保持不小于（<span>&nbsp;）的安全岩柱。</span></div>
A:2m
B:3m<span>&nbsp;</span>
C:4m
D:5m

<div>链板输送机可用在上山倾角（<span>&nbsp;）以下。</span></div>
A:25&deg;
B:&nbsp;35&deg;<span>&nbsp;</span>
C:45&deg;
D:&nbsp;55&deg;

<div>掘进与永久支护平行作业过程中，掘进工作面与永久支护间的距离不应大于（<span><span>&nbsp;&nbsp; </span>）。</span></div>
A:20m<span>&nbsp;</span>
B:30m<span>&nbsp;</span>
C:40m
D:50m

<div>煤仓的支护根据岩性有多种形式。煤仓开在中硬岩层内时，倾斜煤仓用<span>C20素混凝土支护，厚度取（<span>&nbsp;&nbsp; </span>）。</span></div>
A:250～<span>350mm<span>&nbsp;&nbsp;&nbsp;&nbsp; </span></span>
B:150～250mm<span>&nbsp;&nbsp;&nbsp;&nbsp; </span>
C:200～300mm<span>&nbsp;&nbsp;&nbsp; </span>
D:350～400mm

<div>研究岩石性质时，常用到（<span>&nbsp;）三术语。</span></div><div><span><span></span></span></div>
A:岩石<span>&nbsp;</span>
B:岩块
C:岩体
D:矿物

<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>按硐室在井底车场中所处的位置和用途的不同，可分为（<span>&nbsp;）</span>。</div><div><span></span></div>
A:主井系统硐室
B:副井系统硐室
C:躲避硐室
D:其他硐室

<div>凿岩机以使用的动力不同，分为<span>（<span><span>&nbsp;&nbsp;&nbsp; </span>）</span>等。</span></div><div><span><span></span></span></div>
A:风动凿岩机
B:液压凿岩机&nbsp;<span>&nbsp;</span>
C:柴油凿岩机
D:电动凿机

<div>煤矿常用金属材料有（<span><span>&nbsp;&nbsp; </span>）</span>。</div>
A:工字钢
B:角钢
C:槽钢
D:轻便钢轨
E:矿用工字钢以及矿用特殊型钢

<div>目前国内岩巷掘进均采用直径（<span>&nbsp;），炮眼直径需比药卷直径大6~8mm左右</span>。</div>
A:27 mm
B:32 mm
C:&nbsp;35 mm
D:&nbsp;40 mm

<div>常用槽钢类型有<span>（<span><span>&nbsp;&nbsp; </span>）。</span></span></div><div><span><span></span></span></div>
A:12号
B:14号
C:16号<span>&nbsp;</span>
D:18号

<div>岩巷掘进中使用的&ldquo;三小&rdquo;技术，即（<span><span>&nbsp;&nbsp; </span>）钻爆新工艺，以提高掘进效率和维护好顶板。</span></div>
A:&nbsp;小直径钻孔
B:&nbsp;小直径药卷
C:小直径钻杆&nbsp;
D:小直径钻头

<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>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

<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">周边眼包括顶眼、帮眼和底眼，是爆落巷道周边岩石，最后形成设计断面轮廓的炮眼。</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">副井是用作升降人员、材料、设备和提升矸石的井筒。</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">水泥的水化过程是放热反应，其水化过程放出的热量称为水泥的水化热</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

<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">破岩与井巷维护则是井巷工程的主要问题。</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">铲斗后卸式装载机是我国最早使用的装载机械</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