A Novel Bipolar Constant Resistance Large Deformation Anchor Member

Abstract

The invention provides a novel bipolar constant-resistance large-deformation anchor rod component, which includes an anchoring section, a bipolar constant-resistance component and a free section; thebipolar constant-resistance component comprises a sliding sleeve A, a constant-resistance sliding body A, an anchor cable, a constant-resistance sliding body B and a sliding sleeve B; the two ends ofthe anchor cable are connected with the constant-resistance sliding body A and the constant-resistance sliding body B respectively; and the constant-resistance sliding body A and the constant-resistance sliding body B slide along an inner cavity of the sliding sleeve A and an inner cavity of the sliding sleeve B respectively; the anchoring section is connected with the sliding sleeve A; the free section is connected with the sliding sleeve B. The bipolar constant-resistance component and the pre-stressed anchor cable are adopted; when the rock-soil body deforms, the anchor rod deforms, deformation energy of the rock-soil body is consumed to guarantee that anchoring force is stable and continuous. Due to the design of the double-constant-resistance sliding body, the elongation of the novelbipolar constant-resistance large-deformation anchor rod component is greatly increased, the novel bipolar constant-resistance large-deformation anchor rod component provides continuous tensile resistance for a rock-soil body, the energy absorption effect is remarkable, and the novel bipolar constant-resistance large-deformation anchor rod component has important significance for development of large-deformation anchor rods.

Description

technical field [0001] The invention belongs to the field of anchoring and supporting, and in particular relates to a novel bipolar constant-resistance large-deformation anchor member. Background technique [0002] In modern society, human production activities are increasing day by day, making disasters related to rock and soil mass more frequent and severe. For example, large-scale landslides, debris flows, chamber collapses, extreme deformations of roadways (rock bursts, roof collapses, floor drums), earthquakes, etc. Since the rock and soil mass is a heterogeneous and discontinuous medium, its strength and deformation are greatly affected by external conditions, and nonlinear large deformation problems easily occur under loads. The manifestation of the large deformation problem is that the rock and soil mass releases excess energy, and then makes it internally reach a new mechanical balance, but this process will cause huge disasters to human activities. [0003] Slope...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a new bipolar constant resistance and large deformation anchor member to at least solve the problems of insufficient elongation, insufficient strength and poor energy absorption effect of the current support anchor

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