A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-pressure-injection-grouting pedestal pile, high-pressure-injection-grouting pedestal pile construction method and high-pressure-injection-grouting pedestal pile construction equipment
The invention relates to a high-pressure-jet-grouting pedestal pile and a high-pressure-jet-grouting pedestal pile construction method and equipment, and the high-pressure-jet-grouting pedestal pile comprises a pile body which is formed in a pile hole, and a pedestal pit with the diameter larger than that of the pile body is formed in an undisturbed soil body in the lower portion of the pile body; the expanding body is formed by solidifying the formed concrete which is fed into the expanded pit through post-pressure and is in a sphere-like shape; the lower surrounding body is formed in the mode that cement paste which is firstly pressed and fed into the expanded pit is extruded by the formed concrete which is later pressed and fed to the periphery and then solidified, and the solidified lower surrounding body wraps the peripheral side of the expanded body; the upper surrounding body is formed in the mode that cement paste which is firstly pressed into the expanded pit is solidified after being overflowed into a gap between the pile body and the pile hole by the forming concrete which is pressed later, and the upper surrounding body surrounds the peripheral side of the bottom end of the pile body. According to the anti-explosion pile, the surrounding soil body is basically not disturbed, the noise is low, the anti-explosion pile can be achieved, the upper surrounding body and the lower surrounding body which are integrally solidified and formed wrap and protect the joint part between the pile body and the expansion body, and the anti-shearing capacity of the joint part of the pile body and the expansion body can be greatly improved.
本申请涉及一种高喷压灌扩底桩、高喷压灌扩底桩施工方法及其施工设备，高喷压灌扩底桩包括：桩身，成型于桩孔中，桩身下部于原状土体中成型直径大于桩身直径的扩底坑；扩大体，由后压送至扩底坑中的成型混凝土固化形成，其呈类球体状；下包围体，由先压送至扩底坑中的水泥浆被后压送的成型混凝土向周围挤压后固化形成，固化的下包围体包裹于扩大体周侧；上包围体，由先压送至扩底坑中的水泥浆被后压送的成型混凝土向桩身与桩孔之间的间隙中上溢后固化形成，其环绕于桩身底端周侧。本申请对周围土体基本无扰动、噪音低，可防爆桩，一体固化成型的上包围体和下包围体对桩身和扩大体之间的结合部进行裹护，可以极大提高二者结合部处的抗剪切能力。
High-pressure-injection-grouting pedestal pile, high-pressure-injection-grouting pedestal pile construction method and high-pressure-injection-grouting pedestal pile construction equipment
The invention relates to a high-pressure-jet-grouting pedestal pile and a high-pressure-jet-grouting pedestal pile construction method and equipment, and the high-pressure-jet-grouting pedestal pile comprises a pile body which is formed in a pile hole, and a pedestal pit with the diameter larger than that of the pile body is formed in an undisturbed soil body in the lower portion of the pile body; the expanding body is formed by solidifying the formed concrete which is fed into the expanded pit through post-pressure and is in a sphere-like shape; the lower surrounding body is formed in the mode that cement paste which is firstly pressed and fed into the expanded pit is extruded by the formed concrete which is later pressed and fed to the periphery and then solidified, and the solidified lower surrounding body wraps the peripheral side of the expanded body; the upper surrounding body is formed in the mode that cement paste which is firstly pressed into the expanded pit is solidified after being overflowed into a gap between the pile body and the pile hole by the forming concrete which is pressed later, and the upper surrounding body surrounds the peripheral side of the bottom end of the pile body. According to the anti-explosion pile, the surrounding soil body is basically not disturbed, the noise is low, the anti-explosion pile can be achieved, the upper surrounding body and the lower surrounding body which are integrally solidified and formed wrap and protect the joint part between the pile body and the expansion body, and the anti-shearing capacity of the joint part of the pile body and the expansion body can be greatly improved.
本申请涉及一种高喷压灌扩底桩、高喷压灌扩底桩施工方法及其施工设备，高喷压灌扩底桩包括：桩身，成型于桩孔中，桩身下部于原状土体中成型直径大于桩身直径的扩底坑；扩大体，由后压送至扩底坑中的成型混凝土固化形成，其呈类球体状；下包围体，由先压送至扩底坑中的水泥浆被后压送的成型混凝土向周围挤压后固化形成，固化的下包围体包裹于扩大体周侧；上包围体，由先压送至扩底坑中的水泥浆被后压送的成型混凝土向桩身与桩孔之间的间隙中上溢后固化形成，其环绕于桩身底端周侧。本申请对周围土体基本无扰动、噪音低，可防爆桩，一体固化成型的上包围体和下包围体对桩身和扩大体之间的结合部进行裹护，可以极大提高二者结合部处的抗剪切能力。
High-pressure-injection-grouting pedestal pile, high-pressure-injection-grouting pedestal pile construction method and high-pressure-injection-grouting pedestal pile construction equipment
高喷压灌扩底桩、高喷压灌扩底桩施工方法及其施工设备
SHAO LIANGRONG (author) / YANG QI (author) / WANG MING (author) / JIANG DA (author) / FENG QIN (author)
2025-01-07
Patent
Electronic Resource
Chinese
Grouting equipment and grouting method for high-pressure jet grouting pile
| European Patent Office | 2024