A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Device for reducing pile sinking and soil squeezing effect of tubular pile
The invention relates to the technical field of building tubular pile construction equipment, and discloses a device for reducing the pile sinking and soil squeezing effect of a tubular pile. The device comprises an outer sleeve and the tubular pile, wherein an inner sleeve is movably sleeved with the outer sleeve, and the inner sleeve and the outer sleeve are coaxially installed. Through the arrangement of the outer sleeve, the inner sleeve and an annular piston head, a combined body small in size and thickness is inserted into a soft soil layer, on one hand, the extrusion amount of soft soil towards the periphery is reduced, on the other hand, pile sinking of the pipe pile is restrained, when the pipe pile is sunk, the annular piston head is pulled to rise through a pull rod, negative pressure is formed in the outer sleeve and the inner sleeve to be matched with a sunk pile of the tubular pile, a part of soft soil in the inner sleeve is squeezed outwards from the position between the outer sleeve and the inner sleeve, meanwhile, due to protection of the outer sleeve and the inner sleeve on the side face of the tubular pile, the soil squeezed by the tubular pile is effectively prevented from being squeezed towards the side edge, and the influence of the soil squeezing effect of the pipe pile on nearby pile sinking is reduced.
本发明涉及建筑管桩施工设备技术领域，且公开了一种减少管桩沉桩挤土效应的装置，包括外套筒和管桩，所述外套筒的内部活动套接有内套筒，所述内套筒与外套筒同轴安装。通过外套筒、内套筒和环形活塞头的设置，使得利用体积和厚度较小的组合体插入软土层中，一方面减小软土向四周的排挤量，另一方面，对管桩的沉桩进行约束，并且当对管桩进行沉桩时，通过拉杆拉动环形活塞头上升，在外套筒与内套筒内形成负压，与管桩的沉桩相互配合，将内套筒中一部分软土从外套筒与内套筒之间向外排挤，同时，由于外套筒和内套筒对管桩侧面的防护，有效阻挡管桩排挤的泥土向侧边挤压，减小管桩的挤土效应对附近的沉桩带来影响。
Device for reducing pile sinking and soil squeezing effect of tubular pile
The invention relates to the technical field of building tubular pile construction equipment, and discloses a device for reducing the pile sinking and soil squeezing effect of a tubular pile. The device comprises an outer sleeve and the tubular pile, wherein an inner sleeve is movably sleeved with the outer sleeve, and the inner sleeve and the outer sleeve are coaxially installed. Through the arrangement of the outer sleeve, the inner sleeve and an annular piston head, a combined body small in size and thickness is inserted into a soft soil layer, on one hand, the extrusion amount of soft soil towards the periphery is reduced, on the other hand, pile sinking of the pipe pile is restrained, when the pipe pile is sunk, the annular piston head is pulled to rise through a pull rod, negative pressure is formed in the outer sleeve and the inner sleeve to be matched with a sunk pile of the tubular pile, a part of soft soil in the inner sleeve is squeezed outwards from the position between the outer sleeve and the inner sleeve, meanwhile, due to protection of the outer sleeve and the inner sleeve on the side face of the tubular pile, the soil squeezed by the tubular pile is effectively prevented from being squeezed towards the side edge, and the influence of the soil squeezing effect of the pipe pile on nearby pile sinking is reduced.
本发明涉及建筑管桩施工设备技术领域，且公开了一种减少管桩沉桩挤土效应的装置，包括外套筒和管桩，所述外套筒的内部活动套接有内套筒，所述内套筒与外套筒同轴安装。通过外套筒、内套筒和环形活塞头的设置，使得利用体积和厚度较小的组合体插入软土层中，一方面减小软土向四周的排挤量，另一方面，对管桩的沉桩进行约束，并且当对管桩进行沉桩时，通过拉杆拉动环形活塞头上升，在外套筒与内套筒内形成负压，与管桩的沉桩相互配合，将内套筒中一部分软土从外套筒与内套筒之间向外排挤，同时，由于外套筒和内套筒对管桩侧面的防护，有效阻挡管桩排挤的泥土向侧边挤压，减小管桩的挤土效应对附近的沉桩带来影响。
Device for reducing pile sinking and soil squeezing effect of tubular pile
一种减少管桩沉桩挤土效应的装置
LI LIANGHUI (author) / CAO XIAOPIN (author) / PENG FULIN (author) / WANG SONG (author) / FANG LIANG (author)
2021-11-16
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen