Extrusion and expansion branch disc screw pile, construction method thereof and pile forming device used in construction
The invention discloses an extrusion-expansion branch plate screw pile, a construction method thereof and a pile forming device used in construction, the screw pile comprises a straight rod section, an expansion force bearing plate, a threaded section and an expansion bottom head which are fixedly c...
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| creator | CHU HONGMEI DONG JIANHUI ZHAO SHOUQUAN WU HONGGANG XIE FEIHONG WANG JIANYI MENG JINBAO LU BO YANG HE ZHU ZHAORONG ZHAO YONGHU WU SHUGAO JIANG YUHUA YU SHIJIANG WANG YU WANG WEIXING LIU KUN WU DAOYONG ZHANG TIANCI WANG JIANGDONG ZHANG YONGKANG ZHOU JIACHENG GUAN WEI HAN KAN HUANG JING |
| description | The invention discloses an extrusion-expansion branch plate screw pile, a construction method thereof and a pile forming device used in construction, the screw pile comprises a straight rod section, an expansion force bearing plate, a threaded section and an expansion bottom head which are fixedly connected in sequence, and a plurality of branch force bearing frames are uniformly distributed on a pile body. A screw pile is built, a drill rod descends by one screw pitch and clockwise rotates by more than two circles, and a straight rod section is drilled; after reaching a pile end bearing layer, a pile end expanded head is formed; the drill rod ascends by a screw pitch and anticlockwise rotates by a circle, and grouting is conducted; and constructing a support force frame and an expansion force bearing disc, grouting in the lifting process of the drill rod, placing a reinforcement cage, and solidifying, so as to complete the construction of the extrusion and expansion branch disc screw pile. The pile forming d |
| format | Patent |
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A screw pile is built, a drill rod descends by one screw pitch and clockwise rotates by more than two circles, and a straight rod section is drilled; after reaching a pile end bearing layer, a pile end expanded head is formed; the drill rod ascends by a screw pitch and anticlockwise rotates by a circle, and grouting is conducted; and constructing a support force frame and an expansion force bearing disc, grouting in the lifting process of the drill rod, placing a reinforcement cage, and solidifying, so as to complete the construction of the extrusion and expansion branch disc screw pile. 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A screw pile is built, a drill rod descends by one screw pitch and clockwise rotates by more than two circles, and a straight rod section is drilled; after reaching a pile end bearing layer, a pile end expanded head is formed; the drill rod ascends by a screw pitch and anticlockwise rotates by a circle, and grouting is conducted; and constructing a support force frame and an expansion force bearing disc, grouting in the lifting process of the drill rod, placing a reinforcement cage, and solidifying, so as to complete the construction of the extrusion and expansion branch disc screw pile. 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A screw pile is built, a drill rod descends by one screw pitch and clockwise rotates by more than two circles, and a straight rod section is drilled; after reaching a pile end bearing layer, a pile end expanded head is formed; the drill rod ascends by a screw pitch and anticlockwise rotates by a circle, and grouting is conducted; and constructing a support force frame and an expansion force bearing disc, grouting in the lifting process of the drill rod, placing a reinforcement cage, and solidifying, so as to complete the construction of the extrusion and expansion branch disc screw pile. The pile forming d</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING SOIL SHIFTING UNDERGROUND OR UNDERWATER STRUCTURES |
| title | Extrusion and expansion branch disc screw pile, construction method thereof and pile forming device used in construction |
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