24春国开电大春广州市广播电视大学建筑施工技术形考作业2形考作业2参考答案_1
来源:渝粤教育 时间:2024-06-10 08:47:19 
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形考作业2_形考作业20
形考作业2_形考作业20
试卷总分:12.5 得分:7.5
一、单项选择题
1．钢筋混凝土预制桩主筋的连接宜采用（?? ）。?
埋弧压力焊
电阻点焊
对焊
电弧焊
答案:
2.2．钢筋混凝土预制桩的混凝土强度达到设计强度的（?? ）时，才可以进行打桩作业。
70%
90%
50%
100%
答案:
3.3．钢筋混凝土预制桩的打桩方式宜采用（?? ）。
轻锤低击
轻锤高击国家开放大学作业答案
重锤低击
重锤高击渝粤搜题
答案:
4.4.? 当桩距小大于4倍桩径时，打桩宜采用（?? ）。国家开放大学作业答案
又一侧向另一侧打
自中间向四周打
自两边向中央打
自中间向两侧打
答案:
5.5．下列（?? ）不是泥浆护壁灌注桩成孔方法作用。
挖孔
冲孔
抓孔
钻孔
答案:
二、多项选择题
6.1．桩锤按照动力源和动作方式分为（?? ）。
单动汽锤
双动汽锤
动力锤
柴油锤
落锤
答案:
7.2．桩架的主要作用（?? ）。
保护桩身
引导方向
悬吊桩锤
吊桩就位
固定桩位
答案:
8.3．预制桩按照沉桩方法不同分为（?? ）。
水力冲桩
静力压桩
摩擦桩一网一平台答案
端承桩
振动桩
打入桩
答案:
9.4．泥浆护壁成孔灌注桩施工时常宜发生的工程事故有（?? ）。
流砂
断桩
斜孔
孔底隔层或夹砂
孔壁坍塌
答案:
10.5．套管成孔灌注桩施工时常宜发生的工程事故有（?? ）。
断桩
桩尖破坏
孔壁坍塌
缩径桩渝粤教育
吊脚桩
答案:
三、判断题
11.1．钢筋混凝土预制桩应在混凝土强度等级达到70%方可运输。（?? ）
答案:
12.2．打桩顺序应从中心向四周打。（?? ）
答案:
13.3．泥浆在泥浆护壁成孔灌注桩施工中的作用只是防止塌孔。（?? ）
答案:
14.4．泥浆在泥浆护壁成孔灌注桩施工中，清孔工作应安排在钢筋笼下放前进行。（?? ）
答案:
15.5．复打法施工经常在泥浆护壁成孔灌注桩施工中采用。（?? ）
答案:
四、简答题
16.1．打桩顺序如何确定，顺序安排不合理对工程质量有什么影响？
?
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<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium Grid 1 Accent 1" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium Grid 2 Accent 1" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium Grid 3 Accent 1" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Dark List Accent 1" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Colorful Shading Accent 1" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Colorful List Accent 1" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Colorful Grid Accent 1" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Light Shading Accent 2" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Light List Accent 2" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Light Grid Accent 2" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium Shading 1 Accent 2" ></w:LsdException>渝粤教育
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium Shading 2 Accent 2" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium List 1 Accent 2" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium List 2 Accent 2" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium Grid 1 Accent 2" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium Grid 2 Accent 2" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium Grid 3 Accent 2" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Dark List Accent 2" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Colorful Shading Accent 2" ></w:LsdException>国家开放大学作业答案
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Colorful List Accent 2" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Colorful Grid Accent 2" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Light Shading Accent 3" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Light List Accent 3" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Light Grid Accent 3" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium Shading 1 Accent 3" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium Shading 2 Accent 3" ></w:LsdException>国开形成性考核答案
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium List 1 Accent 3" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium List 2 Accent 3" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium Grid 1 Accent 3" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium Grid 2 Accent 3" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium Grid 3 Accent 3" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Dark List Accent 3" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Colorful Shading Accent 3" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Colorful List Accent 3" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Colorful Grid Accent 3" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Light Shading Accent 4" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Light List Accent 4" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Light Grid Accent 4" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium Shading 1 Accent 4" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium Shading 2 Accent 4" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium List 1 Accent 4" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium List 2 Accent 4" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium Grid 1 Accent 4" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium Grid 2 Accent 4" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium Grid 3 Accent 4" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Dark List Accent 4" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Colorful Shading Accent 4" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Colorful List Accent 4" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Colorful Grid Accent 4" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Light Shading Accent 5" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Light List Accent 5" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Light Grid Accent 5" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium Shading 1 Accent 5" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium Shading 2 Accent 5" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium List 1 Accent 5" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium List 2 Accent 5" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium Grid 1 Accent 5" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium Grid 2 Accent 5" ></w:LsdException>渝粤搜题
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium Grid 3 Accent 5" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Dark List Accent 5" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Colorful Shading Accent 5" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Colorful List Accent 5" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Colorful Grid Accent 5" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Light Shading Accent 6" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Light List Accent 6" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Light Grid Accent 6" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium Shading 1 Accent 6" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium Shading 2 Accent 6" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium List 1 Accent 6" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium List 2 Accent 6" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium Grid 1 Accent 6" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium Grid 2 Accent 6" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Medium Grid 3 Accent 6" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Dark List Accent 6" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Colorful Shading Accent 6" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Colorful List Accent 6" ></w:LsdException>
<w:LsdException Locked="false" Priority="99" SemiHidden="false" Name="Colorful Grid Accent 6" ></w:LsdException>
</w:LatentStyles></xml><![endif]--></p><p class="MsoNormal"><spanyes';font-family:arial;mso-fareast-font-family:微软雅黑; font-size:12.0000pt;"=""><font face="微软雅黑">答：（</font>1<font face="微软雅黑">）桩的密集程度，桩的规格、长短，以及桩架移动是否方便等因素来选择正确的打桩顺序。（</font><font face="Arial">2</font><font face="微软雅黑">）由于桩对土体的挤密作用，先打入的桩被后打入的桩水平挤推而造成偏移和变位或被垂直挤拔造成浮桩；而后打入的桩难以达到设计标高或入土深度，造成土体隆起和挤压，截桩过大。</font></spanyes';font-family:arial;mso-fareast-font-family:微软雅黑;></p>
17.2．护筒的埋设要求的作用？
答案:<p>（1）定位；<br>（2）保护孔口，以及防止地面石块掉入孔内；<br>（3）保持泥浆水位（压力），防止坍孔；<br>（4）桩顶标高控制依据之一；<br>（5）防止钻孔过程中的沉渣回流。</p>