A circular section anti-sliding pile with double sided haunch beams and its construction method

Abstract

The invention discloses a bilateral haunched beam circular anti-slide pile and a construction method thereof. The bilateral haunched beam circular anti-slide pile comprises a circular upright pile body, a back side circular horizontal haunched beam and a face side circular horizontal haunched beam and further comprises a back side inclined support and a face side installation support. The back side circular horizontal haunched beam is arranged on the back side of the circular upright pile body, and the face side circular horizontal haunched beam is arranged on the face side of the circular upright pile body. The bilateral haunched beam circular anti-slide pile and the construction method thereof have the advantages that dead weight pressure of rock bodies before and behind the pile, the anti-pressure capability of the standing ground and the load bearing and slide resisting functions of the horizontal haunced beams are given full play according to the stress mode of the anti-slide pile and the space distribution feature of the bending moment and shearing force of the pile body, the stress strength of the pile body is improved, and the bending resisting and shearing resisting capabilities of the anti-slide pile are improved. The anti-slide pile is simple in structural type, high in anti-slide performance, easy to construct, suitable for high and steep slope or foundation pit engineering and also suitable for large landslide control engineering. The construction method of forming holes through a dry method by adopting a rotary excavating machine is adopted, the construction effect is high, the maneuvering characteristics are high, and safety coefficients are high.

Description

technical field [0001] The invention relates to the technical field of large-scale landslide control, high and steep vertical slopes and foundation pit support, in particular to an anti-slide pile with double-sided armpit beams and a construction method thereof. Background technique [0002] At present, the measures to control landslides and slopes mainly include drainage, retaining, anchoring, weight reduction and back pressure. Among them, the anti-slide pile support measures are widely used in landslide control and slope protection projects because of their own advantages such as high rigidity, good self-stabilization performance, convenient construction, and obvious reinforcement effect. The working principle of the anti-slide pile is mainly to balance the landslide thrust or slope soil pressure of the rock-soil mass in the free section by means of the embedding effect and passive resistance of the rock-soil mass in the embedded section, and at the same time use the fric...

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Problems solved by technology

The measure of increasing the cross-sectional area of ​​anti-slide piles and the amount of reinforcement is not only a large amount of engineering, high treatment costs, and easy to cause project waste, but also when constrained by the red line of the land or the space of existing buildings, the on-site construction is difficult, which limits the traditional anti-slide The effective use of sliding piles; the measures of setting prestressed anchor cables on the pile body, due to the high cost of anchor cables, cumbersome construction procedures, and the prestress of anchor cables will easily cause relaxation loss with the increase of time, for permanent landslide or slope treatment Engineering its reliability is obviously insufficient

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