【判断题】【消耗次数:1】
当桩尖离地面1.0m~1.5m时,应停止振动拔桩,由起重机直接拔桩。
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错误
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相关题目
【单选题】 拔桩时, 桩锤应选用:( )
①  落锤
②  单动汽锤
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④  柴油锤
【单选题】 振动沉管灌注桩的拔管速度在一般土层中宜为( )m/min.
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【单选题】 在砂土地层中施工泥浆护壁成孔灌注桩,桩径1.8m,桩长52m,应优先考虑采用
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【判断题】 起重机司机作业前应检查起重机与其他设备或固定建筑物的距离,以保证起重机与其他设备或固定建筑物的最小距离在1.5m以上。
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【多选题】 某住宅工程,地上9层,桩基础采用人工挖孔灌注桩,桩径0.8和1.0m两种,桩孔开挖深度8-14m不等,基坑开挖深度5.7m,采用排桩和土层锚杆支护,地下水标高位于自然地面以下2m深处。该住宅工程需要编制专项施工方案,并组织专家论证、审查的分部分项工程是()。
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