Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Highway bridge pile foundation child-mother double-pile-casing device and inserting and driving construction method
The invention discloses a highway bridge pile foundation child-mother double-pile-casing device and an inserting and driving construction method, and relates to the technical field of highway bridge construction. The bottom end of a mother pile casing is in contact with a pebble layer, a child pile casing penetrates through the mother pile casing to be in contact with the pebble layer, the inner diameter of the child pile casing is smaller than the inner diameter of the mother pile casing, and the child pile casing is longer than the mother pile casing. The highway bridge pile foundation child-mother double-pile-casing device inserting and driving construction method comprises the steps that S1, steel pile casings are prefabricated according to the hole diameter of a pile foundation; and S2 a guide hole is drilled through rotary drilling, and the mother pile casing and the child pile casing are inserted and driven by using two driving and pulling machines. According to the highway bridge pile foundation child-mother double-pile-casing device and the inserting and driving construction method, the problems that in highway bridge construction, the pebble layer is hard, and a pile driver drill bit is pushed slowly are solved. The mother pile casing is used for bottoming, the child pile casing is used for pushing, the guide hole is drilled through rotary drilling, the pile casings are inserted and driven through the two driving and pulling machines, more manpower and material resources are avoided, time is saved, cost is reduced, implementation is easy, use is convenient, the structure is simple, operation is convenient, and construction progress is accelerated. Reference is provided for river (sea) bridge pile foundation construction of similar projects.
本发明一种公路桥梁桩基子母双护筒装置及插打施工方法，涉及公路桥梁施工技术领域，母护筒底端与卵石层接触，子护筒穿过母护筒与卵石层接触，子护筒内径较母护筒小，子护筒长度较母护筒长。公路桥梁桩基子母双护筒装置插打施工方法，包括步骤：①、根据桩基的孔径预制钢护筒；②、利用旋挖钻引孔，两台打拔机插打母、子护筒。本发明克服了公路桥梁施工中卵石层坚硬，桩机钻头推进缓慢问题，母护筒打底，子护筒推进，利用旋挖钻引孔，两台打拔机插打护筒，避免使用更多人力物力，节约时间，降低成本，易于实施，便于使用，且结构简单，操作方便，加快施工进度，为类似工程的江（海、河）桥梁桩基施工提供参考。
Highway bridge pile foundation child-mother double-pile-casing device and inserting and driving construction method
The invention discloses a highway bridge pile foundation child-mother double-pile-casing device and an inserting and driving construction method, and relates to the technical field of highway bridge construction. The bottom end of a mother pile casing is in contact with a pebble layer, a child pile casing penetrates through the mother pile casing to be in contact with the pebble layer, the inner diameter of the child pile casing is smaller than the inner diameter of the mother pile casing, and the child pile casing is longer than the mother pile casing. The highway bridge pile foundation child-mother double-pile-casing device inserting and driving construction method comprises the steps that S1, steel pile casings are prefabricated according to the hole diameter of a pile foundation; and S2 a guide hole is drilled through rotary drilling, and the mother pile casing and the child pile casing are inserted and driven by using two driving and pulling machines. According to the highway bridge pile foundation child-mother double-pile-casing device and the inserting and driving construction method, the problems that in highway bridge construction, the pebble layer is hard, and a pile driver drill bit is pushed slowly are solved. The mother pile casing is used for bottoming, the child pile casing is used for pushing, the guide hole is drilled through rotary drilling, the pile casings are inserted and driven through the two driving and pulling machines, more manpower and material resources are avoided, time is saved, cost is reduced, implementation is easy, use is convenient, the structure is simple, operation is convenient, and construction progress is accelerated. Reference is provided for river (sea) bridge pile foundation construction of similar projects.
本发明一种公路桥梁桩基子母双护筒装置及插打施工方法，涉及公路桥梁施工技术领域，母护筒底端与卵石层接触，子护筒穿过母护筒与卵石层接触，子护筒内径较母护筒小，子护筒长度较母护筒长。公路桥梁桩基子母双护筒装置插打施工方法，包括步骤：①、根据桩基的孔径预制钢护筒；②、利用旋挖钻引孔，两台打拔机插打母、子护筒。本发明克服了公路桥梁施工中卵石层坚硬，桩机钻头推进缓慢问题，母护筒打底，子护筒推进，利用旋挖钻引孔，两台打拔机插打护筒，避免使用更多人力物力，节约时间，降低成本，易于实施，便于使用，且结构简单，操作方便，加快施工进度，为类似工程的江（海、河）桥梁桩基施工提供参考。
Highway bridge pile foundation child-mother double-pile-casing device and inserting and driving construction method
一种公路桥梁桩基子母双护筒装置及插打施工方法
XIE PU (Autor:in) / GENG TIANQUN (Autor:in) / ZHANG LONG (Autor:in) / TANG JINWEI (Autor:in)
02.02.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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