Pre-stressed anchor cable installation test system and method

Abstract

The invention discloses a pre-stressed anchor cable installation test system and method. The system comprises an anchor cable dynamometer, a signal collection instrument, an electric hydraulic pump, ahydraulic jack, and a PC terminal. The PC terminal is in communication connection with the electric hydraulic pump; the electric hydraulic pump is connected with the hydraulic jack; the PC terminal is used for receiving configured pressurization parameters to control the electric hydraulic pump to apply hydraulic pressure to the hydraulic jack, and the hydraulic jack is used for pressurizing thepre-stressed anchor cable; the anchor cable dynamometer is connected with the signal collection instrument; the signal collection instrument is in communication connection with the PC terminal; the anchor cable dynamometer is used for sensing the stress change of the pre-stressed anchor cable to generate a vibrating wire signal; the PC terminal is used for configuring the acquisition frequency ofthe signal collection instrument; the signal collection instrument is used for collecting and processing the vibrating wire signal according to the collection frequency configured by the PC terminal,and transmitting the processed vibrating wire signal to the PC terminal; and the PC terminal is also used for receiving the processed vibrating wire signal for storage, calculation and analysis to obtain and display stress data sensed by the anchor cable dynamometer.

Description

technical field [0001] The invention relates to the field of anchor cable stress testing, in particular to a prestressed anchor cable installation testing system and method. Background technique [0002] Prestressed anchor cable is a reinforcement device widely used in railway slope, rock formation reinforcement and tunnel deformation control. Applying prestress can improve the stress state of rock and soil, increase strength, enhance stability and restrain deformation. [0003] In the process of loading the prestressed anchor cable with a hydraulic jack, the reading of the hydraulic pressure gauge of the hydraulic jack is often used to judge whether the pressure has reached the design requirement. Among them, the hydraulic jack controls the hydraulic pressure of its oil cylinder through a solenoid valve to realize the lifting of the ejector rod in the oil cylinder. The jacking force of the hydraulic jack is the product of the gauge pressure of the oil pressure gauge and the...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiency in the prior art that judging whether the pressurization reaches the design requirement value by reading the oil pressure gauge cannot ensure the effectiveness of the prestressed anchor cable installation, and to provide a prestressed anchor cable installation test system and method

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