A hoop type circular section anchor anti-sliding pile and its construction method

Abstract

The invention discloses a hoop-type circular-section anchor-rod slide-resistant pile and a construction method thereof. The hoop-type circular-section anchor-rod slide-resistant pile comprises a circular-section slide-resistant pile body, a hoop-type steel belt, a steel nail, anchor rods, anchorage devices and a suspended-net concrete spraying layer. The hoop-type steel belt is hooped on the upper cambered surface of the circular-section slide-resistant pile body, the anchor rods penetrate reserved anchor rod holes on linear sections of the hoop-type steel belt to be connected and anchored. Inclined supports matched with incident angles of the anchor rods are arranged on outer sides of the linear sections of the steel belt. Steel base plates are arranged between the anchorage devices and the inclined supports. Concrete sealing anchors are arranged on the inclined supports. The suspended-net concrete spraying layer is suspended outside the hoop-type steel belt. The steel nail is inserted into reserved steel nail holes on the suspended-net concrete spraying layer, the hoop-type steel belt and the circular-section slide-resistant pile body. The hoop-type circular-section anchor-rod slide-resistant pile is simple in structure, low in cost and convenient to construct, materials of the pile body are saved, convenience in mechanical pile forming is realized, and the hoop-type circular-section anchor-rod slide-resistant pile is widely applicable to complex landslides, high-slope management and deep-foundation-pit supporting projects.

Description

technical field [0001] The invention relates to the technical fields of landslide, side slope prevention and foundation pit support, in particular to a hoop-type circular cross-section anchor anti-slide pile and a construction method thereof. Background technique [0002] Since the anti-slide pile body adopts reinforced concrete structure, the pile body has high rigidity, high self-stabilization performance, and can resist large landslide thrust. It has been widely used in landslide control projects since the 1960s. A part of the anti-slide pile body is embedded under the sliding surface, and the thrust of the sliding body is resisted by the reaction force provided by the stable strata below the sliding surface. This cantilever beam force mode with the lower end fixed and the upper end free makes the pile body of the anti-slide pile The cross-section is large, the pile body required to embed in a stable formation is long, and the construction materials are more expensive. T...

AI Technical Summary

Problems solved by technology

Traditional circular anchor-tension anti-slide piles generally adopt the construction method of reserving anchor holes or positioning drilling rigs to drill directly from the pile body. It is difficult to ensure that the anchor projection line is accurately set on the symmetrical axis of the circular section, resulting in actual The force on the pile body does not conform to the design, so that the bending resistance of the pile body cannot be fully utilized, and the pile body is subjected to torque, which cannot achieve the expected support effect of the circular anchor anti-slide pile, and there are certain safety hazards

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