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A platform for research: civil engineering, architecture and urbanism
Expanded hole precast pile suspension type rock-socketable composite pile structure and construction method thereof
The expanded guide hole precast pile suspension type rock-socketable composite pile structure comprises a precast pile and an external grouting material pile wrapping the periphery of the precast pile, a drilling machine rolls to break rock and expand a guide hole to penetrate through a rock-soil layer, grouting materials are implanted into the precast pile to fill and compact an annular gap between the precast pile and the guide hole, and the outer grouting material pile is arranged on the periphery of the guide hole. And the composite pile with the precast pile suspended in the filling grouting material is formed. A precast pile is matched with an implanting method for construction, and the problems that pile sinking is difficult due to the fact that a direct hammering method or a static pressure method is adopted for precast pile rock embedding, pile tip and pile body damage is accompanied by forced crossing, and the bad environment rock-soil effect is caused can be solved; according to the expanded hole precast pile suspension type rock-socketed composite pile structure and the construction process, the bearing capacity of the precast pile is fully exerted, the manufacturing cost is reduced, the material utilization rate and the construction efficiency are remarkably improved, and the advantages are obvious.
本发明公开了一种扩引孔预制桩悬浮式可嵌岩复合桩结构及其施工方法，包括预制桩和包裹在预制桩周围的外部灌浆材料桩，钻机滚压破岩扩径引孔穿越岩土层，预制桩植入灌浆材料充溢挤密预制桩与引孔间的环状间隙，形成预制桩悬浮于充盈灌浆材料中的复合桩。采用预制桩配合植入法施工，可解决预制桩嵌岩采取直接锤击法或静压法所造成的沉桩困难，强行穿越伴随的桩尖、桩身损伤，以及带来的不良环境岩土效应；此扩引孔预制桩悬浮式可嵌岩复合桩结构及施工工艺使得预制桩承载力得到充分发挥，造价降低，材料利用率和施工效率显著提升，优势明显。
Expanded hole precast pile suspension type rock-socketable composite pile structure and construction method thereof
The expanded guide hole precast pile suspension type rock-socketable composite pile structure comprises a precast pile and an external grouting material pile wrapping the periphery of the precast pile, a drilling machine rolls to break rock and expand a guide hole to penetrate through a rock-soil layer, grouting materials are implanted into the precast pile to fill and compact an annular gap between the precast pile and the guide hole, and the outer grouting material pile is arranged on the periphery of the guide hole. And the composite pile with the precast pile suspended in the filling grouting material is formed. A precast pile is matched with an implanting method for construction, and the problems that pile sinking is difficult due to the fact that a direct hammering method or a static pressure method is adopted for precast pile rock embedding, pile tip and pile body damage is accompanied by forced crossing, and the bad environment rock-soil effect is caused can be solved; according to the expanded hole precast pile suspension type rock-socketed composite pile structure and the construction process, the bearing capacity of the precast pile is fully exerted, the manufacturing cost is reduced, the material utilization rate and the construction efficiency are remarkably improved, and the advantages are obvious.
本发明公开了一种扩引孔预制桩悬浮式可嵌岩复合桩结构及其施工方法，包括预制桩和包裹在预制桩周围的外部灌浆材料桩，钻机滚压破岩扩径引孔穿越岩土层，预制桩植入灌浆材料充溢挤密预制桩与引孔间的环状间隙，形成预制桩悬浮于充盈灌浆材料中的复合桩。采用预制桩配合植入法施工，可解决预制桩嵌岩采取直接锤击法或静压法所造成的沉桩困难，强行穿越伴随的桩尖、桩身损伤，以及带来的不良环境岩土效应；此扩引孔预制桩悬浮式可嵌岩复合桩结构及施工工艺使得预制桩承载力得到充分发挥，造价降低，材料利用率和施工效率显著提升，优势明显。
Expanded hole precast pile suspension type rock-socketable composite pile structure and construction method thereof
一种扩引孔预制桩悬浮式可嵌岩复合桩结构及其施工方法
2022-05-13
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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