Influence of Corrosion on Anchoring Bond Behavior of Jointed Rock Mass

Ding, Wenqi; Wang, Zhongrong; Huang, Xin; Chen, Lei; Zheng, Yichen

doi:10.1007/s12205-022-0324-x

Cited by 9 publications

(4 citation statements)

References 22 publications

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“…Ding, W. and others analyzed the geometric mapping 3D matching method based on range and azimuth conditions according to the relationship model between slope radar system and SAR image and the relationship model between slope radar system and terrain data. This method achieved good results [7]. In a landslide monitoring operation, Zhang, D. and others fused high-precision laser scanning point cloud and slope radar results for data fusion.…”

Section: Literature Reviewmentioning

confidence: 97%

Slope Topography Monitoring Based on UAV Tilt Photography Technology and Sensor Technology

Cao

Dai

et al. 2022

Journal of Sensors

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In order to solve the problems of high risk and low efficiency of the traditional rock mass structure logging method of open-pit mine slope, this paper proposes a method to improve the geological logging of traditional open-pit mine slope by using UAV tilt photography technology. Taking the slope of an open-pit quarry as an example, this method expounds the application method and work flow of UAV photography technology in geological logging. The experimental results show that the maximum and minimum absolute errors in the X direction of UAV test are 5.1 cm and 1.1 cm, respectively; MAE value is 2.90 cm; and RMSE value is 3.17 cm. The maximum and minimum absolute errors in Y direction are 3.3 cm and 0.9CM, respectively; MAE value is 2.36 cm; and RMSE value is 2.498 cm. Vertical error refers to the error in elevation. The maximum and minimum absolute errors in Z direction are 9.6 cm and 5.7 cm, respectively; MAE value is 7.44 cm; and RMSE value is 7.54 cm. Conclusion. The reliability of this technology is verified by comparing the occurrence measured by compass and that calculated by point cloud. On this basis, the dominant occurrence of structural plane is divided, which provides basic data support for the analysis of mine slope stability.

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Section: Literature Reviewmentioning

confidence: 97%

Slope Topography Monitoring Based on UAV Tilt Photography Technology and Sensor Technology

Cao

Dai

et al. 2022

Journal of Sensors

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“…In recent years, numerical simulations have been increasingly widespread in geotechnical engineering. There are usually two methods for the numerical simulation of anchoring samples, namely, the finite element method [7,[17][18][19] and the discrete element method [20][21][22]. Using the finite element method, the internal monitoring value of the sample can easily be obtained [7,[17][18][19], as well as the deformation and stress of the anchor.…”

Section: Introductionmentioning

confidence: 99%

“…However, the internal microscopic changes in the rock mass are hard to capture. Most researchers use bonded particles to simulate the anchor and rock mass in the discrete element method [20][21][22]. Although micro-crack initiation and propagation in the sample can be better simulated using DEM, the elastic-plastic behaviour of a continuous medium such as an anchor cannot be reflected.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Behaviour of Anchored Rock Containing Weak Interlayer under Uniaxial Compression: Laboratory Test and Coupled DEM–FEM Simulation

et al. 2022

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The reason for instability in a rock mass with a weak interlayer is not only the sliding failure of the rock interlayer structural plane but also the tip crack propagation caused by the stress concentration at the tip of the interlayer. In this study, a uniaxial compression test of an anchored rock mass with a weak interlayer was carried out to determine the influence of the anchorage on the failure pattern and the strength of samples with different interlayer dip angles. In addition, the coupled DEM–FEM numerical simulation method was used to study the internal stress evolution of the sample and the stress distribution of the anchor under the anchorage effect. The results showed that the anchorage effect on reinforcement and strength enhancement was greatest for the sample with an interlayer dip angle of 30°. Under the anchorage effect, crack initiation was limited and there was more shear failure in the samples. The reinforcement range of the anchorage effect for anchors with restrained ends was larger than for anchors with free ends. When the rock–anchor interface was unbonded, the effect of the free-ends anchor reflected the residual friction, but the restrained-ends anchor still worked by limiting the lateral expansion of the rocks. The stress values and deformation of the anchors decreased gradually with an increase in dip angle.

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“…Geotechnical anchoring technology is an important tool for disaster prevention and mitigation. As a significant branch of geotechnical engineering, geotechnical anchoring techniques are widely applied to engineering construction due to their economy and efficiency (Ding et al, 2022). Anchor bolts play a crucial role in geotechnical anchoring (Shan et al, 2021), which could restrain the displacement of rock and soil mass (Nie et al, 2014b) so as to prevent disasters, such as landslides (Xu et al, 2014) and rock avalanches (Fan et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Progress and Perspectives of Geotechnical Anchor Bolts on Slope Engineering in China

Li²,

Chicas³

et al. 2022

Front. Environ. Sci.

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Geotechnical anchoring technology is an important tool for disaster prevention and mitigation in slope engineering. Anchor bolts which are commonly used in slope engineering can be divided into prestressed anchors and non-prestressed anchors. Due to the superiority of anchor support technology, research on various aspects of anchor bolts, such as mechanical mechanism, anchorage effect, and the development of new-type anchor bolts, has been a significant research topic for scholars. This mini-review sums up the diverse past and current literature on anchor support technology of slope engineering in China. It focuses on the characteristics, applications, research methods, and practical cases of anchor bolts and briefly describes the history of slope anchor bolt development in China in the past 3 decades. Nowadays, the demand for engineering construction processes is increasing, and engineering geological conditions are becoming more complex, which promotes the development of anchor support technology. At the international level, achieving carbon neutrality is both an international trend and a general objective. Against the background of global commitment to carbon neutrality, the potential future perspectives for the developments of anchor support technology have been prospected in light of actual engineering needs.

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Influence of Corrosion on Anchoring Bond Behavior of Jointed Rock Mass

Cited by 9 publications

References 22 publications

Slope Topography Monitoring Based on UAV Tilt Photography Technology and Sensor Technology

Slope Topography Monitoring Based on UAV Tilt Photography Technology and Sensor Technology

Mechanical Behaviour of Anchored Rock Containing Weak Interlayer under Uniaxial Compression: Laboratory Test and Coupled DEM–FEM Simulation

Progress and Perspectives of Geotechnical Anchor Bolts on Slope Engineering in China

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