欧阳老师 发表于 2021-6-25 16:21:01

东大21春学期《公路勘测与设计原理》在线平时作业3参考

21春学期《公路勘测与设计原理》在线平时作业3
1.[单选题] <span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">二级双车道公路弯道处，已知超高横坡度为</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">5%</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">，采用绕路面内边线旋转方式，路拱横坡度为</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">1.5%</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">，超高缓和段长度为</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">100m</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">，加宽值为</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">0.6m</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">，采用比例<span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">加宽，<span style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">则当</span><span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><span style="POSITION: relative; TOP: 3pt; mso-text-raise: -3.0pt"><v:shapetype id="_x0000_t75" coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f"> <img height="19" width="57" alt="" src="http://file.open.com.cn/ItemDB/65641/786b66fa-d858-4764-a441-4386b6632419/201047202020284.gif" /><v:stroke joinstyle="miter"></v:stroke><v:formulas><v:f eqn="if lineDrawn pixelLineWidth 0"></v:f><v:f eqn="sum @0 1 0"></v:f><v:f eqn="sum 0 0 @1"></v:f><v:f eqn="prod @2 1 2"></v:f><v:f eqn="prod @3 21600 pixelWidth"></v:f><v:f eqn="prod @3 21600 pixelHeight"></v:f><v:f eqn="sum @0 0 1"></v:f><v:f eqn="prod @6 1 2"></v:f><v:f eqn="prod @7 21600 pixelWidth"></v:f><v:f eqn="sum @8 21600 0"></v:f><v:f eqn="prod @7 21600 pixelHeight"></v:f><v:f eqn="sum @10 21600 0"></v:f></v:formulas><v:path o:extrusionok="f" gradientshapeok="t" o:connecttype="rect"></v:path><o:lock v:ext="edit" aspectratio="t"></o:lock></v:shapetype></span></span><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">时，其加宽值为（</span><span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><span style="mso-spacerun: yes">   </span></span><span style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">）</span><span lang="EN-US" style="FONT-SIZE: 12pt; LINE-HEIGHT: 150%"><o:p></o:p></span></span></span>

    A. 0.32m
    B. 0.28m
    C. 0.21m
    D.0.43m
    答:——C——
2.[单选题]   下列哪项不属于公路平面线形（   ）
    A.直线
    B. 回旋线
    C. 抛物线
    D.圆曲线
    答:——C——
3.[单选题]    设计交通量是指（）
    A.起算年年平均日交通量
    B.设计年限内的各年年平均日交通量的平均值
    C. 设计年限末年平均日交通量
    D.设计年年平均日交通量
    答:——C——
4.[单选题] <span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">二级双车道公路弯道处，已知超高横坡度为</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">5%</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">，采用绕路面内边线旋转方式，路拱横坡度为</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">1.5%</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">，超高缓和段长度为</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">100m</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">，加宽值为</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">0.6m</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">，采用比例<span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">加宽，<span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">则当</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"><span style="POSITION: relative; TOP: 3pt; mso-text-raise: -3.0pt"><v:shapetype id="_x0000_t75" coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f"> <v:stroke joinstyle="miter"></v:stroke><v:formulas><v:f eqn="if lineDrawn pixelLineWidth 0"></v:f><v:f eqn="sum @0 1 0"></v:f><v:f eqn="sum 0 0 @1"></v:f><v:f eqn="prod @2 1 2"></v:f><v:f eqn="prod @3 21600 pixelWidth"></v:f><v:f eqn="prod @3 21600 pixelHeight"></v:f><v:f eqn="sum @0 0 1"></v:f><v:f eqn="prod @6 1 2"></v:f><v:f eqn="prod @7 21600 pixelWidth"></v:f><v:f eqn="sum @8 21600 0"></v:f><v:f eqn="prod @7 21600 pixelHeight"></v:f><v:f eqn="sum @10 21600 0"></v:f></v:formulas><v:path o:extrusionok="f" gradientshapeok="t" o:connecttype="rect"></v:path><o:lock v:ext="edit" aspectratio="t"></o:lock></v:shapetype><v:shape id="_x0000_i1025" style="WIDTH: 42.75pt; HEIGHT: 14.25pt" o:ole="" type="#_x0000_t75"><v:imagedata o:title="" src="file:///C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\msohtml1\01\clip_image001.wmz"><img height="19" width="57" alt="" src="http://file.open.com.cn/ItemDB/65641/0d5bbded-b1a4-4897-898a-2215d600ce2c/201047194516183.gif" /></v:imagedata></v:shape></span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">时，路中线的超高值计算采用下列那个公式（</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体"><span style="mso-spacerun: yes">   </span></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">）</span></span></span>
    A.<p><img height="41" width="108" alt="" src="http://file.open.com.cn/ItemDB/65641/0d5bbded-b1a4-4897-898a-2215d600ce2c/201047195729186.gif" /></p>
    B.<p><img height="41" width="108" alt="" src="http://file.open.com.cn/ItemDB/65641/0d5bbded-b1a4-4897-898a-2215d600ce2c/201047195759140.gif" /></p>
    C.<img height="41" width="105" alt="" src="http://file.open.com.cn/ItemDB/65641/0d5bbded-b1a4-4897-898a-2215d600ce2c/201047195832813.gif" />
    D.<p><img height="25" width="144" alt="" src="http://file.open.com.cn/ItemDB/65641/0d5bbded-b1a4-4897-898a-2215d600ce2c/20104720936861.gif" /></p>
    答:————
5.[单选题]超高过度段的纵向超高渐变率不得小于（   ）
    A. 1/200
    B. 1/175
    C. 1/300
    D.1/330
    答:————
6.[单选题]    公路弯道处最大超高为（）
    A.10%
    B.8%
    C. 6%
    D. 根据公路等级和是否积雪冰冻地区而定
    答:————
7.[单选题]   在路基设计表的“路基边缘及中桩与设计标高之高差”栏，若左、中、右数据依次为－0.08、0.19、0.40，表明此桩号处于（   ）路段。
    A.    左转
    B. 直行
    C. 右转
    D.不能判断左转还是右转
    答:————
8.[单选题]   在路基设计表的“路基宽度”栏，若左、右路基宽分别为4.25m、5.25m时，表明此桩号处于（   ）路段。
    A. 左转
    B.直行
    C. 右转
    D.不能判断左转还是右转   
    答:————
9.[单选题]   当平曲线转角小于（   ）时，易产生错觉。
    A. 7&deg;
    B. 5&deg;
    C. 10&deg;
    D. 2&deg;
    答:————
10.[单选题]   大、中桥上的纵坡不宜大于（   ）
    A. 5%
    B.4%
    C. 3%
    D. 2.5%
    答:————
11.[判断题]平曲线应与竖曲线重合，且平曲线应长于竖曲线。
    A.错误
    B.正确
    答:————
12.[判断题] 预测交通量为30000辆的干线公路宜采用一级公路
    A.错误
    B.正确
    答:————
13.[判断题] 进行汽车的纵向稳定性受力分析时，可忽略滚动阻力和空气阻力。
    A.错误
    B.正确
    答:————
14.[判断题]   考虑离心加速度变化率要求计算缓和曲线最小长度时，离心加速度变化率取值为0.6。
    A.错误
    B.正确
    答:————
15.[判断题] 高速公路、一级公路路基设计洪水频率为1/100。
    A.错误
    B.正确
    答:————
16.[判断题] 长直线与小半径凹形竖曲线组合较好。
    A.错误
    B.正确
    答:————
17.[判断题]公路纵坡较大时，其路拱坡度也应较大。
    A.错误
    B.正确
    答:————
18.[判断题]三、四级公路上行驶的拖拉机按路侧干扰因素计
    A.错误
    B.正确
    答:————
19.[判断题]    平曲线处加宽时，其加宽值由两部分构成，分别是几何加宽值和摆动加宽值。
    A.错误
    B.正确
    答:————
20.[判断题] 当公路平面线形转角很小时，可不敷设曲线而用折线代替。
    A.错误
    B.正确
    答:————


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