东大22年10月《土力学与地基基础(二)》在线平时作业3_100分满分

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土力学与地基基础(二)X《土力学与地基基础(二)》在线平时作业3
1.[单选题] <span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; 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">已知某种土的密度</span><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; 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: 5pt; mso-text-raise: -5.0pt"><v:shapetype id="_x0000_t75" stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" o:preferrelative="t" o:spt="75" coordsize="21600,21600"> <img height="30" width="90" alt="" src="http://file.open.com.cn/ItemDB/65688/6beb1d55-13d9-4a8d-9229-382bca78b2a9/201032113176251.jpg" /><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:connecttype="rect" gradientshapeok="t" o:extrusionok="f"></v:path><o:lock aspectratio="t" v:ext="edit"></o:lock></v:shapetype></span></span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; 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">，土粒相对密度</span><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; 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: 6pt; mso-text-raise: -6.0pt"><img height="27" width="66" alt="" src="http://file.open.com.cn/ItemDB/65688/6beb1d55-13d9-4a8d-9229-382bca78b2a9/2010321131718376.jpg" /></span></span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; 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">，土的含水量</span><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; 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"><img height="27" width="72" alt="" src="http://file.open.com.cn/ItemDB/65688/6beb1d55-13d9-4a8d-9229-382bca78b2a9/2010321131727251.jpg" /></span></span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; 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<span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; 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">每立方米土体中水的质量为</span></span>
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    A.275kg
    B.444kg
    C.225kg
    D.552kg
    答:——A——
2.[单选题] 土体总应力抗剪强度指标为c，&phi;，有效应力抗剪强度指标为c’，&phi;’，则其剪切破坏时实际破裂面与大主应力作用面的夹角为
    A.<img height="43" width="90" alt="" src="http://file.open.com.cn/ItemDB/65688/4140419e-906d-4237-adda-295b85d7414e/201032113512669.jpg" />
    B.<img height="46" width="93" alt="" src="http://file.open.com.cn/ItemDB/65688/4140419e-906d-4237-adda-295b85d7414e/2010321135135538.jpg" />
    C.<p><img height="51" width="96" alt="" src="http://file.open.com.cn/ItemDB/65688/4140419e-906d-4237-adda-295b85d7414e/2010321135235305.jpg" /></p>
    D.<img height="45" width="87" alt="" src="http://file.open.com.cn/ItemDB/65688/4140419e-906d-4237-adda-295b85d7414e/2010321135155976.jpg" />
    答:——C——
3.[单选题] 桩基承台发生冲切的原因是（    ）。
    A.底板配筋不足
    B.承台的有效高度不足
    C.钢筋保护层不足
    D.承台平面尺寸过大
    答:——B——
4.[单选题] 建立土的极限平衡条件依据的是
    A.极限应力圆与抗剪强度包线相切的几何关系
    B.极限应力圆与抗剪强度包线相割的几何关系
    C.整个莫尔圆位于抗剪强度包线的下方的几何关系
    D.静力平衡条件
    答:————
5.[单选题] 压缩系数&alpha;1-2的下标l—2的含义是
    A.l表示自重应力，2表示附加应力
    B.压应力从lMPa增加到2MFa
    C.压应力从100kPa增加到200kPa
    D.无特定含义，仅是个符号而已
    答:————
6.[单选题] 对饱和软弱粘土地基进行加固，下列方法最适宜的是（    ）。
    A.强夯法
    B.真空预压法
    C.振冲法
    D.碎石桩法
    答:————
7.[单选题] 对同一种饱和粘性土分别进行不固结不排水、固结不排水和固结排水试验，下列描述正确的是
    A.如果将三种不同排水条件下的剪切试验结果以总应力表示，将得出完全不同的破坏包线，若以有效应力表示，也得到完全不同的有效应力破坏包线
    B.如果将三种不同排水条件下的剪切试验结果以总应力表示，将得出近乎同一条破坏包线，若以有效应力表示，则得到完全不同的有效应力破坏包线
    C.如果将三种不同排水条件下的剪切试验结果以总应力表示，将得出近乎同一条破坏包线，若以有效应力表示，也得到近乎同一条有效应力破坏包线
    D.如果将三种不同排水条件下的剪切试验结果以总应力表示，将得出完全不同的破坏包线，若以有效应力表示，则得到近乎同一条有效应力破坏包线
    答:————
8.[单选题] 下列 （      ） 项不属于原位测试
    A.地基静载荷试验
    B.固结试验
    C.旁压试验
    D.触探试验
    答:————
9.[单选题] 饱和粘性土的不固结不排水抗剪强度主要取决于
    A.围压大小
    B.土的原有强度
    C.孔隙压力系数大小
    D.偏应力大小
    答:————
10.[单选题] 在相同条件下，主动土压力Ea与被动土压力Ep的大小关系是
    A.Ea&le;Ep
    B.Ea＜Ep
    C.Ea＞Ep
    D.Ea&ge;Ep
    答:————
11.[多选题] 下列描述正确的是
    A.墙后填土选用粘性土时，因粘性土的蠕变性质能使主动土压力向静止土压力状态发展，从而引起墙背侧压力随时间增加
    B.墙后填土选用砂性土时，墙后土体的主动土压力状态能够长时间保持
    C.对填土速度较快、高度较大的挡土墙，粘性填土的抗剪强度指标宜选用不排水剪指标
    D.在季节冻土地区，墙后填土应选用非冻胀性填料，如碎石、砾砂等
    答:————
12.[多选题] 下列属于地基土整体剪切破坏的特征的是
    A.基础四周的地面隆起
    B.多发生于坚硬粘土层及密实砂土层
    C.地基中形成连续的滑动面并贯穿至地面
    D.多发生于软土地基
    答:————
13.[多选题] 影响地基破坏模式的因素包括
    A.荷载大小
    B.基础埋深
    C.加荷速率
    D.地基土的压缩性高低
    答:————
14.[多选题] <span style="FONT-SIZE: 10.5pt; 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">关于基底压力计算公式</span><span lang="EN-US" style="FONT-SIZE: 10.5pt; 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-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体"><span style="POSITION: relative; TOP: 12pt; mso-text-raise: -12.0pt"><v:shapetype id="_x0000_t75" stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" o:preferrelative="t" o:spt="75" coordsize="21600,21600"> <img height="47" width="141" alt="" src="http://file.open.com.cn/ItemDB/65688/476741ac-75d4-4e73-a676-6cbb2bd6e12b/201032115374439.jpg" /><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:connecttype="rect" gradientshapeok="t" o:extrusionok="f"></v:path><o:lock aspectratio="t" v:ext="edit"></o:lock></v:shapetype></span></span><span style="FONT-SIZE: 10.5pt; 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; mso-bidi-font-size: 12.0pt">，正确的说法是</span>
    A.<span lang="EN-US" style="FONT-SIZE: 10.5pt; 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-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体"><span style="POSITION: relative; TOP: 6pt; mso-text-raise: -6.0pt"><v:shapetype id="_x0000_t75" stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" o:preferrelative="t" o:spt="75" coordsize="21600,21600"> <img height="27" width="70" alt="" src="http://file.open.com.cn/ItemDB/65688/476741ac-75d4-4e73-a676-6cbb2bd6e12b/2010321153745347.jpg" /><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:connecttype="rect" gradientshapeok="t" o:extrusionok="f"></v:path><o:lock aspectratio="t" v:ext="edit"></o:lock></v:shapetype></span></span><span style="FONT-SIZE: 10.5pt; 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; mso-bidi-font-size: 12.0pt">为基础及台阶上回填土的重量</span>
    B.d为从基础底面至室外地面的距离
    C.d为从基础底面至天然地面的距离
    D.<span lang="EN-US" style="FONT-SIZE: 10.5pt; 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-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体"><span style="POSITION: relative; TOP: 6pt; mso-text-raise: -6.0pt"><v:shapetype id="_x0000_t75" stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" o:preferrelative="t" o:spt="75" coordsize="21600,21600"> <img height="25" width="72" alt="" src="http://file.open.com.cn/ItemDB/65688/476741ac-75d4-4e73-a676-6cbb2bd6e12b/2010321153847301.jpg" /><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:connecttype="rect" gradientshapeok="t" o:extrusionok="f"></v:path><o:lock aspectratio="t" v:ext="edit"></o:lock></v:shapetype></span></span><span style="FONT-SIZE: 10.5pt; 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; mso-bidi-font-size: 12.0pt">中，</span><span lang="EN-US" style="FONT-SIZE: 10.5pt; 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-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体"><span style="POSITION: relative; TOP: 6pt; mso-text-raise: -6.0pt"><img height="23" width="22" alt="" src="http://file.open.com.cn/ItemDB/65688/476741ac-75d4-4e73-a676-6cbb2bd6e12b/2010321153905.jpg" /></span></span><span style="FONT-SIZE: 10.5pt; 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; mso-bidi-font-size: 12.0pt">一般取</span><span lang="EN-US" style="FONT-SIZE: 10.5pt; 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-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体">20KN/m</span>^{<span lang="EN-US" style="FONT-SIZE: 10.5pt; 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">3</span>}
    答:————
15.[多选题] <p><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; 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: EL; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">对基底压力公式</span><span lang="EN-US" style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; 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: 12pt; mso-text-raise: -12.0pt"><v:shapetype id="_x0000_t75" stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" o:preferrelative="t" o:spt="75" coordsize="21600,21600"><img height="38" width="98" alt="" src="http://file.open.com.cn/ItemDB/65688/809ce658-d4c2-4fee-b7e9-80134cb26736/201032112429119.jpg" /><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:connecttype="rect" gradientshapeok="t" o:extrusionok="f"></v:path><o:lock aspectratio="t" v:ext="edit"></o:lock></v:shapetype></span></span><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; 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: EL; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">参数的解释，正确的是</span></p><p><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; 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: EL; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"></span></p><p><span style="FONT-SIZE: 10.5pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 12.0pt; 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: EL; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"></span></p>
    A.&gamma;G为基础及回填土的平均重度
    B.d为基础埋深
    C.&gamma;G为基础的重度
    D.A为基础底面积
    答:————
16.[判断题] 在坡顶挖方（卸载）或在坡脚填方均可提高土坡的稳定性。
    A.错误
    B.正确
    答:————
17.[判断题] 地下水位上升有可能对一般的桩基础产生负摩阻力。
    A.错误
    B.正确
    答:————
18.[判断题] 局部剪切破坏是介于整体剪切破坏和冲剪破坏之间的一种破坏型式。
    A.错误
    B.正确
    答:————
19.[判断题] 桩距太小会给施工造成困难，但只要施工条件许可，桩距可不受规范最小桩距的限制。
    A.错误
    B.正确
    答:————
20.[判断题] 较硬的土一般是超固结土，较软的土一般是欠固结土。
    A.错误
    B.正确
    答:————
    南开大学答案  q7 6 1 2 9 6 0 2 1
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