地 层 情 况
地点(省):吉林
地点(市):长春
钻机型号: SJW-60型旋喷钻机
钻具配置:89三重单高压旋喷钻杆
工艺类型:旋喷加固
施工工艺:三重旋喷
地层情况:土层,有少量石块
施工角度(°):90
孔径(mm): 800
孔深(m):18

施 工 工 艺
后台配置:
安曼SJW-60旋喷钻机;
XPB-90EX注浆泵;
XPB-10注浆泵;
螺杆式空压机SEF210EZ;
储气罐1立方米
长春地铁6号线地铁口加固项目
1、钻机移到放点的位置;
2、调整水平,支腿支撑稳定钻机;
3、下钻:气压0.6~0.8MPa,水压12MPa,浆压2MPa(带水),下钻到要求深度;
4、提钻:气压不变,水压25MPa,浆压3MPa,提升速度18cm/min,旋转速度19r/min;
5、钻头离孔端2米,大泵吸清水,1分钟左右提出钻杆;
6、移机到下一个孔位。
——安曼钻机售服:李小朋

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