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[Construction Case] Ammann HDL-150D Top Drive Drill Rig in Slope Support Construction in Jiangmen, Guangdong

2020-07-01 886 0人评论

　　地层情况

地点（省）:广东
地点（市）:江门
钻机型号:HDL-150D型顶驱钻机
钻具配置:133套管＋73钻杆
工艺类型:边坡支护
施工工艺:普通锚索
地层情况:1-20米回填碎石层（单套管钻进不返水）；20-30米泥沙层；30-45米风化岩
施工角度（°）:25
孔径（mm):150
孔深（m):45
施工效率（min):140
纯钻进时间（min):90
纯拆卸钻具时间（min):40

　　顶驱钻机双管钻进锚索施工

钻具:133套管及套管钻头；73钻杆及102钻杆钻头
水排渣配置:5.5千瓦污水泵；15千瓦增压泵
1、对准孔位，调整施工角度，将支腿支撑到地面；
2、先把第一根套管打入地下；
3、下夹夹住套管，动力头反转拆开套管放入第一根钻杆，启动水泵清洗套管碎石渣。上夹夹住钻杆，动力头反转拆掉钻杆；
4、将钻杆提前放入套管，双管一起与动力头连接，启动水泵冲击回转钻进；
5、钻至设计孔深后，将钻杆拆掉；
6、将做好的锚索放入套管内进行第一次管内注浆。当孔口套管完全返出水泥浆，注浆完成；
7 、套管拆拔完后，再进行二次注浆。

——安曼钻机售服：王其龙

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[Construction Case] Ammann HDL-150D Top Drive Drill Rig in Slope Support Construction in Jiangmen, Guangdong

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[Construction Case] Ammann HDL-150D Top Drive Drill Rig in Slope Support Construction in Jiangmen, Guangdong

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