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A platform for research: civil engineering, architecture and urbanism
Double-high-pressure jet grouting stirring drill bit and construction method thereof
The invention discloses a double-high-pressure jet grouting stirring drill bit and a construction method thereof. The stirring drill bit comprises a drill bit body and a drill rod provided with stirring blades, wherein a normal-pressure grouting pipe is arranged in the drill rod, a high-pressure grouting pipe and a high-pressure water injection pipe which are arranged in a delta shape with the normal-pressure grouting pipe are arranged in the drill rod, a high-pressure slurry spraying opening of the high-pressure grouting pipe and a high-pressure water spraying opening of the high-pressure water injection pipe are formed below the stirring blades close to the drill bit body, the high-pressure water spraying opening is formed above the high-pressure slurry spraying opening, a normal-pressure nozzle of the normal-pressure grouting pipe is arranged at the joint of the drill bit body and the drill rod, and the normal-pressure nozzle, the high-pressure slurry spraying opening and the high-pressure water spraying opening jointly conduct rotary spraying, stirring and cutting on a soil body. Compared with the prior art, the double-high-pressure jet grouting stirring drill bit has the advantages of simple structure, large pile forming diameter, good pile forming quality, high construction speed and the like.
本发明公开了一种双高压旋喷搅拌钻头及其施工方法，包括钻头和设有搅拌叶片的钻杆，所述的钻杆内设有常压注浆管，所述的钻杆内设有与常压注浆管为品字形设置的高压注浆管和高压注水管，所述的高压注浆管的高压喷浆口和高压注水管的高压喷水口设置在近钻头的搅拌叶片下，且高压喷水口在高压喷浆口之上；所述的常压注浆管的常压喷口设置在钻头与钻杆的结合部位，且与高压喷浆口、高压喷水口共同对土体进行旋喷搅拌切削。本发明与现有技术相比具有结构简单，成桩直径大，成桩质量好，施工速度快等优点。
Double-high-pressure jet grouting stirring drill bit and construction method thereof
The invention discloses a double-high-pressure jet grouting stirring drill bit and a construction method thereof. The stirring drill bit comprises a drill bit body and a drill rod provided with stirring blades, wherein a normal-pressure grouting pipe is arranged in the drill rod, a high-pressure grouting pipe and a high-pressure water injection pipe which are arranged in a delta shape with the normal-pressure grouting pipe are arranged in the drill rod, a high-pressure slurry spraying opening of the high-pressure grouting pipe and a high-pressure water spraying opening of the high-pressure water injection pipe are formed below the stirring blades close to the drill bit body, the high-pressure water spraying opening is formed above the high-pressure slurry spraying opening, a normal-pressure nozzle of the normal-pressure grouting pipe is arranged at the joint of the drill bit body and the drill rod, and the normal-pressure nozzle, the high-pressure slurry spraying opening and the high-pressure water spraying opening jointly conduct rotary spraying, stirring and cutting on a soil body. Compared with the prior art, the double-high-pressure jet grouting stirring drill bit has the advantages of simple structure, large pile forming diameter, good pile forming quality, high construction speed and the like.
本发明公开了一种双高压旋喷搅拌钻头及其施工方法，包括钻头和设有搅拌叶片的钻杆，所述的钻杆内设有常压注浆管，所述的钻杆内设有与常压注浆管为品字形设置的高压注浆管和高压注水管，所述的高压注浆管的高压喷浆口和高压注水管的高压喷水口设置在近钻头的搅拌叶片下，且高压喷水口在高压喷浆口之上；所述的常压注浆管的常压喷口设置在钻头与钻杆的结合部位，且与高压喷浆口、高压喷水口共同对土体进行旋喷搅拌切削。本发明与现有技术相比具有结构简单，成桩直径大，成桩质量好，施工速度快等优点。
Double-high-pressure jet grouting stirring drill bit and construction method thereof
一种双高压旋喷搅拌钻头及其施工方法
ZHOU YUSHI (author) / XIE XIAODONG (author) / LIU GUOFENG (author) / XIE SHUDONG (author) / BAO GUOQIANG (author) / ZHANG QUN (author) / GENG LIANGCAI (author)
2020-05-26
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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