广州地铁21号线建设
花岗岩入岩20米
350MM孔径微型桩施工

01、机型特点

机器型号
KS800多功能锚杆钻机短臂版
日本埃尔曼PDSK1050S
排气量29.7立方,排气压力25公斤
机型特点
短臂版KS800,适用于地铁、地下室、隧道等限高狭窄环境施工。
孔山专利,双马达动力头、大扭矩、带减震缓冲,更适合大孔径潜孔入岩。


02、施工现场

施工地点
广东省广州市地铁21号线




03、施工工艺

施工工艺
工艺:微型桩
地层:花岗岩
孔径:350MM
孔深:20M
钻头:350MM
冲击器:12寸
钻杆:89钻杆(1.5米)
04、施工效果

施工角度
施工角度:90°
施工效率
施工效率:30分钟/20米


施工效果图
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