Thermography analysis of a roadway excavation experiment in 60° inclined stratified rocks

Gong, Weili; Wang, J.; Gong, Yuxin; Guo, Pingye

doi:10.1016/j.ijrmms.2012.12.047

Cited by 30 publications

(4 citation statements)

References 35 publications

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“…Apart from the AOM characteristics, the infrared radiation field characteristics were also investigated. 73 It has been documented that acoustic quiescence was registered as an important precursor, as well as the dramatic increase of AE energy rate, the variation in AE dominant frequency, and the mutation in infrared temperature.…”

Section: Introductionmentioning

confidence: 99%

Compression‐induced crack initiation and growth in flawed rocks: A review

Zhou

Zhang

Yang

et al. 2021

Fatigue Fract Eng Mat Struct

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Section: Introductionmentioning

confidence: 99%

Compression‐induced crack initiation and growth in flawed rocks: A review

Zhou

Zhang

Yang

et al. 2021

Fatigue Fract Eng Mat Struct

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“…Gaussian high pass filter (GHPF) was employed to remove the rest of the noises. The GHPF is a robust and efficient high-band filter [49,50] and can remove the noises at high band while preserve the main characteristics of the signal at low band. Broadly speaking, the AE signals can be analyzed using two methods: the parameter analysis and waveform analysis method.…”

Section: Analysis Of Ae Characteristicsmentioning

confidence: 99%

An experimental investigation on acoustic emission characteristics of sandstone rockburst with different moisture contents

Sun

Zheng

et al. 2016

Sci. China Technol. Sci.

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Rockburst occurred frequently during deep mining in China. The mechanism of rockburst is very complicated and related to many factors. In order to investigate the influence of moisture contents of rockmass on rockburst, we conducted a series of laboratory rockburst experiments of sandstone under three different moisture contents by the Modified True-Triaxial Apparatus (MTTA), in which the acoustic emission (AE) system was employed to monitor the internal damage of rock mass. A high-speed video camera was utilized to record the detail of rockburst. Based on the experimental results, the AE characteristics, such as AE count, AE energy, and AE frequency, were analyzed. The rockburst process, type, and indensity under different moisture contents were discussed. The research results show that with the increase of moisture contents, rock strength was soften, the elastic and the cumulative damage of the rock were reduced, resulting in a gradual decrease in AE cumulative counts and cumulative energy over the course of rockburst. This study provides an experimental basis and reference for better understanding to the rockburst mechanism and control.

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“…To sum up, it was found that most of the control and treatment of slope collapse were carried out in the order of pretreatment, emergence, and retreatment. At present, the main indoor research method was physical model test; it has the strong intuitive characteristics, and the qualitative or quantitative analysis that is applied to the rock slope stability analysis [22][23][24][25]. Friedmann et al studied the physical behavior of rock debris flow after collapse by model experiment [26].…”

Section: Introductionmentioning

confidence: 99%

Physical Modeling Test on Deformation and Failure of Rock Slope with New Support System

Tao

Zhang

Zhu

et al. 2020

Advances in Civil Engineering

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In order to explore the monitoring and control method of rock slope, indoor physical model testing of collapse control and monitoring were carried out with the example of a rock slope collapse area project in Jietai Temple in Beijing, China, as the prototype. Based on the similarity theory, in this study, a new structural support with Negative Poisson’s Ratio bolt and flexible anchored net was utilized to reinforce the rock slope. Following a graded loading sequence, the collapse failure characteristics and the overall control effect of energy absorption reinforcement measures were explored. The experimental results demonstrated that the entire process of slope collapse presented four distinct stages of failure: fracture generation, fracture propagation, partial collapse, and overall collapse. The full-field displacement nephogram and the displacement monitoring point of the collapse area indicated that the large deformation and failure of the collapsed surrounding rock were effectively controlled, while the Negative Poisson’s Ratio bolt and the flexible anchored net had good reinforcement effects. The experimental stress record presented that the change of pressure curve was an apparent regularity in the entire process of slope collapse, which reflects the change state of internal force of surrounding rock; it includes the function of monitoring of slope collapse. It was indicated that the Negative Poisson’s Ratio bolt along with the large-deformation flexible anchored net had good reinforcement monitoring effect on the rock slope collapse disaster.

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Thermography analysis of a roadway excavation experiment in 60° inclined stratified rocks

Cited by 30 publications

References 35 publications

Compression‐induced crack initiation and growth in flawed rocks: A review

Compression‐induced crack initiation and growth in flawed rocks: A review

An experimental investigation on acoustic emission characteristics of sandstone rockburst with different moisture contents

Physical Modeling Test on Deformation and Failure of Rock Slope with New Support System

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