Electrochemical Experiment to Evaluate the Impact of Multistage Load and Osmotic Pressure on Anchor Bolt

Sun, Guanglin; Hu, Jiangchun; Wang, Hongfang; Li, Dewei

doi:10.1155/2022/9405262

Cited by 3 publications

(2 citation statements)

References 33 publications

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“…In the cable tendon reinforcement system, the grout in the borehole is paramount [35]. Specifically, the stress at the bolt/grout (B/G) and grout/rock (G/R) faces is responsible for the force-transferring mechanism [36].…”

Section: Force-transferring Processmentioning

confidence: 99%

A Review of the Force-Transferring Mechanism of Entirely Grouted Cable Tendons Performed with Experimental Pull Tests

Chen

Zhang

et al. 2022

Sustainability

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Entirely grouted cable tendons are commonly used in mining engineering. They have superior working ability in reinforcing the excavated rocks and soils. During the working process of cable tendons, the force-transferring ability and the corresponding mechanism are significant in guaranteeing the safety of underground openings. To further understand the force-transferring mechanism of entirely grouted cable tendons, this paper provided a literature review on the force transfer of cable tendons. First, the force-transferring concept of entirely grouted cable tendons was summarised. The force-transferring process and failure modes of cable tendons were illustrated. Then, the experimental test program used in testing the entirely grouted cable tendons was summarised. The advantages and disadvantages of various test programs were illustrated. After that, the working ability of entirely grouted cable tendons was reviewed. The effect of various parameters on the working ability of cable tendons was summarised and compared. These parameters include the rock stiffness, embedment length, cement grout property, resin grout property, modified geometry, borehole size, rotation and pre-tensioning. Last, a discussion was provided to elaborate the working ability and force-transferring mechanism of entirely grouted cable bolts. This literature review is beneficial for researchers and engineers, furthering their understanding of the working ability of cable tendons.

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Section: Force-transferring Processmentioning

confidence: 99%

A Review of the Force-Transferring Mechanism of Entirely Grouted Cable Tendons Performed with Experimental Pull Tests

Chen

Zhang

et al. 2022

Sustainability

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“…e results showed that the corrosion rate was dependent on temperature. e electrochemical analysis method was used in the experimental measurement of anchor under osmotic pressure [28]. Sohail et al [29] conducted electrochemical test research on different types of reinforcement under corrosion conditions.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Characterization of Anchor under Uniaxial Compression Loading Conditions

Sun

Wang

et al. 2022

Advances in Materials Science and Engineering

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Bolt reinforcement technology plays an important role in supporting the construction of many engineering fields, and the uniaxial loading characteristics and behavior tests of anchors have great significance to the research and application of anchors. Therefore, four anchor specimens GA ∼ GD were fabricated and tested to explore the macro and microbehavior characteristics of anchors under uniaxial compression. The stress-strain curves for GA ∼ GC specimens under uniaxial compression were analyzed. The stress-strain curve, elastic strain and creep strain, the failure results, and electrochemical impedance spectroscopy of specimen GD under multistage loading were investigated. The results showed a series of behavior characteristics of anchor under uniaxial compression. Under uniaxial compression, the shapes of stress-strain curves of three specimens GA ∼ GC were similar, and they had experienced four different stages from stage I to stage IV, respectively. After calculating the uniaxial compressive strength of the three specimens, the average uniaxial compressive strength of these specimens was σ c ¯ = 8.31 MPa. The stress-strain curve of the specimen GD was obtained by a multi-stage loading test. The total strain of the specimen consisted of elastic strain and creep strain. In the whole process of loading, the proportion of elastic strain was greater than that of creep strain, and the proportion range of elastic strain was 51.90% ∼ 55.82%. Seven electrochemical impedance spectrum curves of the specimen GD under multi-stage compression load were obtained. The dispersion and concentration of Nyquist curves were affected by different loading levels; the higher the loading level, the more dispersed the Nyquist curve is. In the measured Bode diagram, compared with the previous six measurements, the variation laws of impedance value and phase angle measured at the seventh time in the failure stage of the specimen were quite different. The above research and conclusions can provide some reference for the test theory and engineering application of anchors.

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Intelligent recognition of shale fracture network images based on transfer learning

Wang,

Hu,

Liu

et al. 2023

Earth Sci Inform

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Electrochemical Experiment to Evaluate the Impact of Multistage Load and Osmotic Pressure on Anchor Bolt

Cited by 3 publications

References 33 publications

A Review of the Force-Transferring Mechanism of Entirely Grouted Cable Tendons Performed with Experimental Pull Tests

A Review of the Force-Transferring Mechanism of Entirely Grouted Cable Tendons Performed with Experimental Pull Tests

Mechanical Characterization of Anchor under Uniaxial Compression Loading Conditions

Intelligent recognition of shale fracture network images based on transfer learning

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