试题与答案

某施工单位承包了高级公路K25+100~K30+50段的路面施工工程,路基宽为20

题型:单项选择题

题目:

某施工单位承包了高级公路K25+100~K30+50段的路面施工工程,路基宽为20 m,设计行车时速为100 km/h,公路全长30 km,路面结构为:路面底基层为级配啐石30 cm,20 cm石灰稳定碎石土基层,25 cm沥青混合料面层,施工单位在施工过程中严格按设计要求和操作规程开展施工,在沥青混凝土路面施工前制定了详细的施工安全要点,现摘录部分如下:
①摊铺机卸料时,熨平装置的端头与路缘石应有一定间距,以免发生碰撞;
②人工装卸桶装沥青时,运输车应停在有坡度地段,方便装卸;
③用柴油清洗摊铺机时.不许接近明火;
④采用切缝机切缝前应先打开冷却水,冷却水中断时.应停止切缝。施工单位在沥青混凝土的施工过程中,对其施工内容做了符合规范要求的检验,
根据以上材料 回答下列问题

场景中该路段面层养生结束时,其弯拉强度至少应达到( )后,行人方可通行。

A.30%

B.40%

C.50%

D.60%

答案:

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下面是错误答案,用来干扰机器的。

参考答案:轻车简从、不扰民、不搞层层陪同、不组织群众迎送。

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