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人工回填施工工艺标准

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人工回填施工工艺标准 ZJG/J/A 010102-2003 1定义及适用范围 土方回填,系用人力或机械对场地、基坑(槽)进行分层回填夯实,以保证达到要求的密实度。本 工艺标准适用于一般工业和民用建筑物中的基坑、基槽、室内地坪、管沟、室外散水等人工回填土。 2材料要求 2.1 土料:宜优先利用基槽中挖出的土,但不得含有有机杂质,使用前应过筛,其粒径不大于 50mm, 含水率应符合规定。 2.2 石屑:不含有机杂质,粒径不大于 50mm。 2.3 粘性土:含水量符合压实要求,可用作各层填料。 2.4 碎石类土,砂石和爆破石渣: 其最大块粒径不得超过每层铺垫厚度的 2/3 ,可用作表层以下填料。 2.5 碎块草皮和有机质含量不大于 8%的土:仅可用于无压实要求的填土。 2.6 淤泥和淤泥质土:一般不能用作土料。 3机具设备 人工回填主要机具设备有:铁锹、手推车、木夯、蛙式打夯机、筛子、喷壶等

级配砂石回填施工工艺标准

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仅供个人学习参考 目次 1适用范围 ··························································· 1 2引用标准 ··························································· 1 3术语 ··························································· 1 4材料要求 ··························································· 1 5施工准备 ·························································· 1 6操作工艺 ·········································

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