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PAGE
挖孔桩施工方案
编制:
复核:
审核:
二〇一六年五月
目 录
一、工程概况······································································1
二、编制依据······································································1
三、施工方案·····································································2
1、挖孔桩工艺流程图···························································2
2、挖孔桩施工准备······························································3
3、挖孔········································································3
4、水磨钻······································································5
5、钢筋笼的制作和安装·························································7
6、桩基混凝土的浇筑·························································· 8
7、桩基质量检测····························································· 9
8、挖孔桩质量控制要点························································9
9、施工安全注意事项···························································10
四、保证措施·····································································11
1、工期保证措施································································11
2、质量保证措施·······························································12
3、安全、文明施工保证措施······················································14
4、环境保护、水土保持保证措施··················································17
附件一 主要机械设备一览表····················································18
附件二 劳动力计划表··························································19
PAGE
PAGE 20
合同段
挖孔桩施工方案
一、工程概况
本标段共计桩基210根,分别东庄大桥68根,东庄中桥30根,南沟中桥24根,窦王墓大桥48根,白土坡大桥38根。
桩基工程数量
类型
桥梁名称
桩径(m)
完成桩基
剩余桩基
圆桩
2
42
26
圆桩
1.4/1.5
21
9
圆桩
1.4/1.5
24
0
圆桩
1.5
38
10
圆桩
1.4/1.5
36
2
涉及人工挖孔的桩基为:
东庄大桥右幅:3-0#、3-1#(20米)、12-0#(17米)、左幅:3-1#(19米);东庄中桥右幅2-3#(20米);窦王墓大桥右幅4-1#(16米)。
东庄大桥、窦王墓大桥位于井陉县东东庄村西南处,地形起伏不平,地貌单元主要为侵蚀构造山地区,桥梁走向为西北-东南向;东庄中桥位于井陉县东庄村村南处,地貌单元主要为侵蚀构造山地区,地层主要为坡洪积,桥梁走向近东西向。
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