Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Oblique pile prestress exerting device and construction method thereof
The invention discloses an oblique pile prestress exerting device and a construction method thereof. The oblique pile prestress exerting device comprises a surrounding purline, a loading unit, a forcetransmitting unit and anti-pulling units and further comprises a connecting unit and a locking unit, wherein an oblique pile obliquely penetrates through the surrounding purline, the loading unit exerts axial force on the oblique pile, the force transmitting unit transmits the axial force exerted by the loading unit to the oblique pile, the anti-pulling units are symmetrically arranged on the twosides of the oblique pile, one end of each anti-pulling unit is fixed to the bottom of the surrounding purline, and the other end of each anti-pulling unit movably penetrates through the surroundingpurline and is then connected with the loading unit. The prestress of the oblique pile can be rapidly exerted before excavation of earthwork, the oblique pile enters a stressed state in advance, and therefore the aims of rapidly giving play to the bearing capacity of the oblique pile, reducing the deformation of a foundation pit and effectively protecting the surrounding environment are realized;and in addition, the oblique pile prestress exerting device can be located outside a ring beam and has the advantages that the application range is large, the oblique pile prestress exerting device can extend to the ground, and therefore it is avoided that since the ring beam falls to the bottom, the oblique pile prestress exerting device is affected by underground water, and the oblique pile prestress exerting device can be recovered.
本发明公开了一种斜桩预应力施加装置及其施工方法，该装置包括：围檩，斜桩倾斜地穿过所述围檩；加载单元，对斜桩施加轴向力；传力单元，将加载单元施加的轴向力传递至所述斜桩；抗拔单元，对称地设置在所述斜桩的两侧，所述抗拔单元的一端固定在所述围檩的底部，所述抗拔单元的另一端活动地穿过所述围檩后与所述加载单元相连接；还包括连接单元和锁定单元。本发明可在土方开挖前快速施加斜桩预应力，使斜桩提前进入受力状态，从而达到快速发挥斜桩承载力、降低基坑变形且有效保护周边环境的目的，另斜桩预应力施加装置可位于圈梁外侧，具有适用范围大、可延伸至地面，从而避免由于圈梁落底而遭受地下水影响、施加预应力装置可回收等优点。
Oblique pile prestress exerting device and construction method thereof
The invention discloses an oblique pile prestress exerting device and a construction method thereof. The oblique pile prestress exerting device comprises a surrounding purline, a loading unit, a forcetransmitting unit and anti-pulling units and further comprises a connecting unit and a locking unit, wherein an oblique pile obliquely penetrates through the surrounding purline, the loading unit exerts axial force on the oblique pile, the force transmitting unit transmits the axial force exerted by the loading unit to the oblique pile, the anti-pulling units are symmetrically arranged on the twosides of the oblique pile, one end of each anti-pulling unit is fixed to the bottom of the surrounding purline, and the other end of each anti-pulling unit movably penetrates through the surroundingpurline and is then connected with the loading unit. The prestress of the oblique pile can be rapidly exerted before excavation of earthwork, the oblique pile enters a stressed state in advance, and therefore the aims of rapidly giving play to the bearing capacity of the oblique pile, reducing the deformation of a foundation pit and effectively protecting the surrounding environment are realized;and in addition, the oblique pile prestress exerting device can be located outside a ring beam and has the advantages that the application range is large, the oblique pile prestress exerting device can extend to the ground, and therefore it is avoided that since the ring beam falls to the bottom, the oblique pile prestress exerting device is affected by underground water, and the oblique pile prestress exerting device can be recovered.
本发明公开了一种斜桩预应力施加装置及其施工方法，该装置包括：围檩，斜桩倾斜地穿过所述围檩；加载单元，对斜桩施加轴向力；传力单元，将加载单元施加的轴向力传递至所述斜桩；抗拔单元，对称地设置在所述斜桩的两侧，所述抗拔单元的一端固定在所述围檩的底部，所述抗拔单元的另一端活动地穿过所述围檩后与所述加载单元相连接；还包括连接单元和锁定单元。本发明可在土方开挖前快速施加斜桩预应力，使斜桩提前进入受力状态，从而达到快速发挥斜桩承载力、降低基坑变形且有效保护周边环境的目的，另斜桩预应力施加装置可位于圈梁外侧，具有适用范围大、可延伸至地面，从而避免由于圈梁落底而遭受地下水影响、施加预应力装置可回收等优点。
Oblique pile prestress exerting device and construction method thereof
一种斜桩预应力施加装置及其施工方法
WEI JIANHUA (Autor:in) / YIN JI (Autor:in) / HAI MINGLEI (Autor:in) / MA ZONGYU (Autor:in) / YU HAIZHOU (Autor:in) / SU LI (Autor:in) / XU SIHUI (Autor:in) / XU ZOU (Autor:in) / ZHANG CHUNFENG (Autor:in)
23.06.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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