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A platform for research: civil engineering, architecture and urbanism
Composite anchor rod post-grouting expanded-base cast-in-place pile
The invention discloses a composite anchor rod post-grouting expanded-base cast-in-place pile, and relates to the technical field of composite pile foundation design, and the cast-in-place pile is formed by the following steps: step 1, measuring and positioning, manual hole digging, retaining wall ventilation, expanded base and binding of a reinforcement cage with a grouting steel pipe; step 2, anchor rod drilling, anchor rod mounting, grouting and anchor sealing; and thirdly, the reinforcement cage is hoisted downwards, the exposed section of the anchor rod is connected with the reinforcement cage, concrete is poured, maintenance is conducted, and grouting is conducted. According to the post-grouting bottom-expanded cast-in-place pile with the composite anchor rods, under the condition of hills and low mountain landforms with limited mechanical hole forming, the post-grouting bottom-expanded cast-in-place pile with the composite anchor rods formed through the post-grouting process is particularly suitable for application scenes such as large up-pulling load of a multi-loop angle tower and the like, difficult hole forming of granite and the like, large up-pulling force and low hole forming work efficiency.
本发明公开了一种复合锚杆后注浆扩底灌注桩，涉及到复合桩基设计技术领域，所述灌注桩由以下步骤成型：步骤一、测量定位→人工挖孔→护壁通风→扩底→绑扎带注浆钢管的钢筋笼；步骤二、锚杆钻孔→安装锚杆→注浆封锚；步骤三、下吊钢筋笼→锚杆外露段与钢筋笼连接→浇筑混凝土→养护→注浆。本发明中，在机械成孔受限的丘陵低山地貌条件下，采用复合桩底锚杆、后注浆工艺成型的复合锚杆后注浆扩底灌注桩，尤为适用多回路转角塔等上拔荷载较大、花岗岩等成孔困难等上拔力大、成孔工效较低的应用场景。
Composite anchor rod post-grouting expanded-base cast-in-place pile
The invention discloses a composite anchor rod post-grouting expanded-base cast-in-place pile, and relates to the technical field of composite pile foundation design, and the cast-in-place pile is formed by the following steps: step 1, measuring and positioning, manual hole digging, retaining wall ventilation, expanded base and binding of a reinforcement cage with a grouting steel pipe; step 2, anchor rod drilling, anchor rod mounting, grouting and anchor sealing; and thirdly, the reinforcement cage is hoisted downwards, the exposed section of the anchor rod is connected with the reinforcement cage, concrete is poured, maintenance is conducted, and grouting is conducted. According to the post-grouting bottom-expanded cast-in-place pile with the composite anchor rods, under the condition of hills and low mountain landforms with limited mechanical hole forming, the post-grouting bottom-expanded cast-in-place pile with the composite anchor rods formed through the post-grouting process is particularly suitable for application scenes such as large up-pulling load of a multi-loop angle tower and the like, difficult hole forming of granite and the like, large up-pulling force and low hole forming work efficiency.
本发明公开了一种复合锚杆后注浆扩底灌注桩，涉及到复合桩基设计技术领域，所述灌注桩由以下步骤成型：步骤一、测量定位→人工挖孔→护壁通风→扩底→绑扎带注浆钢管的钢筋笼；步骤二、锚杆钻孔→安装锚杆→注浆封锚；步骤三、下吊钢筋笼→锚杆外露段与钢筋笼连接→浇筑混凝土→养护→注浆。本发明中，在机械成孔受限的丘陵低山地貌条件下，采用复合桩底锚杆、后注浆工艺成型的复合锚杆后注浆扩底灌注桩，尤为适用多回路转角塔等上拔荷载较大、花岗岩等成孔困难等上拔力大、成孔工效较低的应用场景。
Composite anchor rod post-grouting expanded-base cast-in-place pile
一种复合锚杆后注浆扩底灌注桩
HE FENGYI (author) / LU YANAN (author) / WANG MEI (author) / FENG DEQUAN (author) / YANG YUANPEI (author) / QU HONGSEN (author) / WANG YINGJIE (author)
2023-10-31
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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