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A platform for research: civil engineering, architecture and urbanism
Prestressed inclined pile support and construction method thereof
The invention relates to a prestressed inclined pile support. The prestressed inclined pile support comprises an inclined pile support body, a circuit purlin, an anti-pulling device and a loading device, wherein the inclined pile support body is driven into soil before a foundation pit is excavated; the anti-pulling device is movably connected with the inclined pile support body in the axial direction; the loading device applies axial prestress to the inclined pile support body by taking the anti-pulling device as an acting point; and the anti-pulling device is fixed in the circuit purlin in advance, and the loading device is arranged at the part, extending out of the circuit purlin, of the upper end of the anti-pulling device. According to the prestressed inclined pile support, a prestress applying device is applied before excavation, so that the bearing capacity of an inclined pile is quickly exerted; the prestress applying device is additionally arranged on an existing inclined pilesupport, reverse thrust can be provided for the inclined pile support through a force transmission device, the inclined pile deforms in advance, and therefore the bearing capacity of the inclined pile is quickly exerted; the prestress applying device can be recycled; and the prestress applying device of the inclined pile is located on the outer side of a ring beam and is wide in application rangeand capable of extending to the ground, so that the situation that the ring beam falls, so that the ring beam is influenced by underground water is avoided.
本发明涉及一种预应力斜桩支撑，包括斜桩支撑、围檩、抗拔装置、加载装置；斜桩支撑在基坑开挖之前打入土中；抗拔装置与斜桩支撑轴向方向活动连接；加载装置以抗拔装置作为着力点，对斜桩支撑施加轴向预应力；抗拔装置预先固定在围檩中，上端伸出围檩的部分安装加载装置。本发明开挖前施加预应力装置，快速发挥斜桩承载力；在既有斜桩支撑上增设了预应力施加装置，可通过传力设备向斜桩支撑提供反推力，让斜桩提前产生变形，从而快速发挥斜桩承载力；预应力加力装置可回收；斜桩预应力施加装置位于圈梁外侧，适用范围大，并可延伸至地面从而避免由于圈梁落底而遭受地下水影响。
Prestressed inclined pile support and construction method thereof
The invention relates to a prestressed inclined pile support. The prestressed inclined pile support comprises an inclined pile support body, a circuit purlin, an anti-pulling device and a loading device, wherein the inclined pile support body is driven into soil before a foundation pit is excavated; the anti-pulling device is movably connected with the inclined pile support body in the axial direction; the loading device applies axial prestress to the inclined pile support body by taking the anti-pulling device as an acting point; and the anti-pulling device is fixed in the circuit purlin in advance, and the loading device is arranged at the part, extending out of the circuit purlin, of the upper end of the anti-pulling device. According to the prestressed inclined pile support, a prestress applying device is applied before excavation, so that the bearing capacity of an inclined pile is quickly exerted; the prestress applying device is additionally arranged on an existing inclined pilesupport, reverse thrust can be provided for the inclined pile support through a force transmission device, the inclined pile deforms in advance, and therefore the bearing capacity of the inclined pile is quickly exerted; the prestress applying device can be recycled; and the prestress applying device of the inclined pile is located on the outer side of a ring beam and is wide in application rangeand capable of extending to the ground, so that the situation that the ring beam falls, so that the ring beam is influenced by underground water is avoided.
本发明涉及一种预应力斜桩支撑，包括斜桩支撑、围檩、抗拔装置、加载装置；斜桩支撑在基坑开挖之前打入土中；抗拔装置与斜桩支撑轴向方向活动连接；加载装置以抗拔装置作为着力点，对斜桩支撑施加轴向预应力；抗拔装置预先固定在围檩中，上端伸出围檩的部分安装加载装置。本发明开挖前施加预应力装置，快速发挥斜桩承载力；在既有斜桩支撑上增设了预应力施加装置，可通过传力设备向斜桩支撑提供反推力，让斜桩提前产生变形，从而快速发挥斜桩承载力；预应力加力装置可回收；斜桩预应力施加装置位于圈梁外侧，适用范围大，并可延伸至地面从而避免由于圈梁落底而遭受地下水影响。
Prestressed inclined pile support and construction method thereof
一种预应力斜桩支撑及其施工方法
WEI JIANHUA (author) / YIN JI (author) / YU HAIZHOU (author) / MA ZONGYU (author) / HAI MINGLEI (author) / LI XIANG (author) / WEI JIAQI (author) / XU SIHUI (author) / WANG YONG (author)
2020-07-03
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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