Self-locking yielding tray capable of displaying axial force of anchor rod or anchor cable in real time and operation method of self-locking yielding tray

Abstract

The invention discloses a self-locking yielding tray capable of displaying axial force of an anchor rod or an anchor cable in real time and an operation method of the self-locking yielding tray. The self-locking yielding tray is of an integrally formed cylinder-shaped structure and comprises an outer end part I close to the outer end side of the anchor rod or the anchor cable and an inner end partII close to the surface side of a rock and soil body; the outer ring surface of the outer end part I is a columnar surface, and a conical groove and a locking piece are arranged on the inner ring part of the outer end part I; the outer wall of the inner end part II is axially arranged as a wave-like undulating structure, a distance measuring sensor is arranged at the beginning position of the wave-like undulating structure and can be used for measuring the length of the wave-like undulating structure, and the length of the wave-like undulating structure corresponds to the axial force of the anchor rod or the anchor cable; when the axial force of the anchor rod or the anchor cable exceeds a certain set pressure value of the self-locking yielding tray, the length of the wave-like undulatingstructure can be shortened to realize the yielding function; and a display screen is further arranged on the outer surface of the outer end part I and can display the yielding amount of the self-locking yielding tray and the axial force of the anchor rod or the anchor cable in real time.

Description

technical field [0001] The invention relates to the technical field of rock and soil bolts or cables, in particular to a self-locking yielding tray capable of displaying the axial force of the bolt or cable in real time and an operation method thereof. Background technique [0002] As an effective reinforcement technology, anchor rod or anchor cable can fully exert and improve the self-strength and self-stabilization ability of rock and soil, significantly reduce the volume of structures and reduce the self-weight of structures, and effectively control the deformation of rock and soil. Widely used in geotechnical engineering fields such as slopes, foundation pits, tunnels, roadways, and dams. However, as the scale of my country's infrastructure construction increases year by year, more and more geotechnical projects are built in high-risk and complex geological conditions, which also brings severe challenges to traditional anchoring technologies. For example, in the field o...

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Problems solved by technology

[0003] Aiming at the shortcomings of traditional bolts or anchor cables such as low elongation rate, difficulty in adapting to large deformation and damage of rock and soil, cumbersome installation process, difficulty in real-time testing and evaluation of stress state and safety, and low precision of prestress application, the present invention proposes a The self-locking pressure yielding tray and its operation method for real-time display of the axial force of the anchor rod or anchor cable can display the axial force of the anchor rod or anchor cable in real time, which improves the accuracy of prestressing and can safely stress the anchor rod or anchor cable. Real-time test and evaluation of the state of the anchor rod or anchor cable can also improve the elongation rate of the anchor rod or anchor cable to achieve the pressure support effect, and at the same time simplify the installation process of the anchor rod or anchor cable on site

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