【多选题】【消耗次数：1】
土层锚杆的组成（ ）;
①
锚头
②
拉杆
③
锚固体
④
管件
⑤
螺栓
参考答案：
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相关题目
【单选题】
土层锚杆的钢拉杆的作用是：( )
①
使挡土桩墙所受荷载可靠的传到拉杆上
②
保证钢索在张拉时能自由伸长
③
将锚杆头部的荷载传给锚固体
④
通过锚固体与土体之间的磨擦力作用，将力传至地层
【单选题】
由于拉杆与锚固体之间的极限握裹力远大于锚固体与土体之间的极限侧阻力，所以在拉杆选择适当的前提下，锚杆的承载能力主要取决于：( )
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锚杆的极限抗拔力
②
拉杆的极限抗拉强度
③
拉杆与锚固体之间的极限握裹力
④
锚固体与土体间的极限侧阻力
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