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A platform for research: civil engineering, architecture and urbanism
High-penetrating-power double-pipe vibration immersed pipe pedestal pile construction technology and equipment
The invention discloses a high-penetrating power double-tube vibration immersed tube pedestal pile construction technology and equipment, and relates to the technical field of foundation treatment, the high-penetrating power double-tube vibration immersed tube pedestal pile construction technology comprises the following steps: 1) double-tube immersed tube equipment is in place; (2) the holes are led to the designed pile bottom elevation through the double pipes, specifically, a vibratory hammer is started, the vibratory hammer drives the inner pipe and the outer pipe to synchronously sink, and the inner pipe and the outer pipe are sequentially vibrated to sink into a block gravel filling layer, a soft soil layer and a supporting layer from top to bottom to form holes till the designed pile bottom elevation is reached; (3) the filler is vibrated and compacted to form an expanded head; (4) the step (3) is repeated until the design requirement for the diameter of the expanded head is met; and (5) the inner pipe is pulled out, and pile body construction is completed. And 6) vibrating and pulling the outer pipe by a vibratory hammer, and combining the inner pipe and the outer pipe. The construction equipment comprises a vibratory hammer, a pile gripper, an inner pipe and an outer pipe, the outer pipe is sleeved with the inner pipe to form an inner sleeve and an outer sleeve, the inner pipe and the outer pipe are fixed through the pile gripper, and the vibratory hammer is arranged at the top of the pile gripper. The method solves the problem that current conventional immersed tube pedestal pile and carrier pile construction is difficult to penetrate through a block gravel filling layer.
本发明公开了一种高穿透力双管振动沉管扩底桩施工工艺及设备，涉及地基处理技术领域，包括以下步骤：步骤1)双管沉管设备就位；步骤2)双管引孔至设计桩底标高：开启振动锤，振动锤带动内管和外管同步下沉，并自上而下依次振沉至块碎石填土层、软土层、持力层中成孔，直至达到设计桩底标高；步骤3)填料振冲密实形成扩大头；步骤4)重复步骤3)直到满足扩大头直径的设计要求；步骤5)拔出内管，完成桩身施工；步骤6)振动锤振拔外管，组合内外管。施工设备包括振动锤、夹桩器、内管和外管，内管套设于外管外形成内外双套管，内管与外管经夹桩器固定，夹桩器顶部设有振动锤。本发明解决了目前常规沉管扩底桩、载体桩施工难以穿透块碎石填土层的问题。
High-penetrating-power double-pipe vibration immersed pipe pedestal pile construction technology and equipment
The invention discloses a high-penetrating power double-tube vibration immersed tube pedestal pile construction technology and equipment, and relates to the technical field of foundation treatment, the high-penetrating power double-tube vibration immersed tube pedestal pile construction technology comprises the following steps: 1) double-tube immersed tube equipment is in place; (2) the holes are led to the designed pile bottom elevation through the double pipes, specifically, a vibratory hammer is started, the vibratory hammer drives the inner pipe and the outer pipe to synchronously sink, and the inner pipe and the outer pipe are sequentially vibrated to sink into a block gravel filling layer, a soft soil layer and a supporting layer from top to bottom to form holes till the designed pile bottom elevation is reached; (3) the filler is vibrated and compacted to form an expanded head; (4) the step (3) is repeated until the design requirement for the diameter of the expanded head is met; and (5) the inner pipe is pulled out, and pile body construction is completed. And 6) vibrating and pulling the outer pipe by a vibratory hammer, and combining the inner pipe and the outer pipe. The construction equipment comprises a vibratory hammer, a pile gripper, an inner pipe and an outer pipe, the outer pipe is sleeved with the inner pipe to form an inner sleeve and an outer sleeve, the inner pipe and the outer pipe are fixed through the pile gripper, and the vibratory hammer is arranged at the top of the pile gripper. The method solves the problem that current conventional immersed tube pedestal pile and carrier pile construction is difficult to penetrate through a block gravel filling layer.
本发明公开了一种高穿透力双管振动沉管扩底桩施工工艺及设备，涉及地基处理技术领域，包括以下步骤：步骤1)双管沉管设备就位；步骤2)双管引孔至设计桩底标高：开启振动锤，振动锤带动内管和外管同步下沉，并自上而下依次振沉至块碎石填土层、软土层、持力层中成孔，直至达到设计桩底标高；步骤3)填料振冲密实形成扩大头；步骤4)重复步骤3)直到满足扩大头直径的设计要求；步骤5)拔出内管，完成桩身施工；步骤6)振动锤振拔外管，组合内外管。施工设备包括振动锤、夹桩器、内管和外管，内管套设于外管外形成内外双套管，内管与外管经夹桩器固定，夹桩器顶部设有振动锤。本发明解决了目前常规沉管扩底桩、载体桩施工难以穿透块碎石填土层的问题。
High-penetrating-power double-pipe vibration immersed pipe pedestal pile construction technology and equipment
一种高穿透力双管振动沉管扩底桩施工工艺及设备
XU WANG (author) / LOU XIAOMING (author) / CAO XIAOJI (author) / CHENG YUE (author) / WANG JIAJIA (author)
2024-11-12
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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