Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for increasing bearing capacity of anti-floating anchor rod in soft stratum
The invention belongs to the technical field of anti-floating anchor rods, and discloses a method for increasing the bearing capacity of an anti-floating anchor rod in a soft stratum. The problem that an existing anti-floating anchor rod is poor in bearing capacity in the soft stratum is solved. According to the method for increasing the bearing capacity of the anti-floating anchor rod in the soft stratum, through double-rotation grouting construction, in the grouting process of a rotary spraying drilling machine, the diameter of an anchoring section is increased and the stratum is reinforced through grouting nozzles in the vertical direction and the horizontal direction, and therefore the bearing capacity of the soft stratum is improved; and meanwhile, after prestress is applied to the anti-floating anchor rod, the situation that the anchoring section cracks can be controlled, and the problem that in the prior art, cracks are prone to occurring when the anti-floating anchor rod is constructed in the soft stratum is solved.
本发明属于抗浮锚杆技术领域，公开了一种增加软弱地层抗浮锚杆承载力方法，为了解决现有抗浮锚杆在软弱地层上承载力差的问题。本发明通过双旋注浆施工，即旋喷钻机在注浆过程中，利用竖向和水平方向的注浆喷口来增加锚固段直径并加固地层，从而提高软弱地层承载力；同时抗浮锚杆施加预应力后，能够控制锚固段出现裂缝的情况，解决了现有技术在软弱地层施工抗浮锚杆容易出现裂缝的问题。
Method for increasing bearing capacity of anti-floating anchor rod in soft stratum
The invention belongs to the technical field of anti-floating anchor rods, and discloses a method for increasing the bearing capacity of an anti-floating anchor rod in a soft stratum. The problem that an existing anti-floating anchor rod is poor in bearing capacity in the soft stratum is solved. According to the method for increasing the bearing capacity of the anti-floating anchor rod in the soft stratum, through double-rotation grouting construction, in the grouting process of a rotary spraying drilling machine, the diameter of an anchoring section is increased and the stratum is reinforced through grouting nozzles in the vertical direction and the horizontal direction, and therefore the bearing capacity of the soft stratum is improved; and meanwhile, after prestress is applied to the anti-floating anchor rod, the situation that the anchoring section cracks can be controlled, and the problem that in the prior art, cracks are prone to occurring when the anti-floating anchor rod is constructed in the soft stratum is solved.
本发明属于抗浮锚杆技术领域，公开了一种增加软弱地层抗浮锚杆承载力方法，为了解决现有抗浮锚杆在软弱地层上承载力差的问题。本发明通过双旋注浆施工，即旋喷钻机在注浆过程中，利用竖向和水平方向的注浆喷口来增加锚固段直径并加固地层，从而提高软弱地层承载力；同时抗浮锚杆施加预应力后，能够控制锚固段出现裂缝的情况，解决了现有技术在软弱地层施工抗浮锚杆容易出现裂缝的问题。
Method for increasing bearing capacity of anti-floating anchor rod in soft stratum
一种增加软弱地层抗浮锚杆承载力方法
REN DONGXING (Autor:in) / XUE PENG (Autor:in) / DENG AN (Autor:in) / XU JIANXIAO (Autor:in)
15.06.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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