Three-dimensional Seismic Displacement Analysis of Rock Slopes based on Hoek-Brown Failure Criterion

2018 ◽  
Vol 22 (11) ◽  
pp. 4334-4344 ◽  
Author(s):  
Yongxin Li ◽  
Xiaoli Yang
Keyword(s):  
Failure Criterion ◽  
Three Dimensional ◽  
Rock Slopes ◽  
Displacement Analysis ◽  
Seismic Displacement

scholarly journals Estimation of the Critical Seismic Acceleration for Three-Dimensional Rock Slopes

2021 ◽  
Vol 11 (24) ◽  
pp. 11625
Author(s):  
Qingfeng Meng ◽  
Xuyue Hu ◽  
Guanghui Chen ◽  
Peng Li ◽  
Zhi Wang
Keyword(s):  
Failure Criterion ◽  
Three Dimensional ◽  
Rock Slopes ◽  
Failure Model ◽  
Seismic Acceleration ◽  
Design Charts ◽  
Simulation Results ◽  
Rotational Failure ◽  
First Time ◽  
Bound Theory

An analytical approach for the estimating of critical seismic acceleration of rock slopes was proposed in this study. Based on the 3D horn failure model, the critical seismic acceleration coefficient of rock slopes was conducted with the modified Hoek–Brown (MHB) failure criterion in the framework of upper-bound theory for the first time. The nonlinear Hoek–Brown failure criterion is incorporated into the three-dimensional rotational failure mechanism, and a generalized tangent technique is introduced and employed to convert the nonlinear Hoek–Brown failure criterion into a linear criterion. The critical seismic acceleration coefficients obtained from this study were validated by the numerical simulation results based on finite element limit analysis. The agreement showed that the proposed method is effective. Finally, design charts were provided for exceptional cases for practical use in rock engineering.

Stability of Rock Slopes, A Three-Dimensional Study

1969 ◽  
Vol 95 (1) ◽  
pp. 235-262
Author(s):  
Pierre Londe ◽  
Gaston Vigier ◽  
Raymond Vormeringer
Keyword(s):  
Three Dimensional ◽  
Rock Slopes

scholarly journals Network method for deformation analysis of three-dimensional point cloud with terrestrial laser scanning sensor

2018 ◽  
Vol 14 (11) ◽  
pp. 155014771881413 ◽  
Author(s):  
Xiangyang Xu ◽  
Hao Yang
Keyword(s):  
Point Cloud ◽  
Laser Scanning ◽  
Three Dimensional ◽  
Terrestrial Laser Scanning ◽  
Deformation Analysis ◽  
Transverse Displacement ◽  
Displacement Analysis ◽  
Accuracy Measurement ◽  
Network Method ◽  
Displacement Information

The complexity of structural materials is increasing the importance of the technology for high accuracy measurement. How to obtain the displacement information of structural feature points accurately and efficiently is the key issue of deformation analysis. In this article, displacement analysis of a composite arched structure is investigated based on the terrestrial laser scanning technique. A new method based on the measured point cloud is proposed to analyze the displacement of surficial points, resulting in not only the displacement size but also the displacement direction. The innovation lies in extracting the displacement information with a network and remapped point cloud, which is called the network method. The displacement map obtained demonstrates that the transverse displacement in the experiment plays an important role in the safety of the structure, which could not be observed and obtained by the surface approximation method. Therefore, the panorama- and pointwise displacement analysis technologies contribute to ensure the safety of increasingly complex constructions.

Seismic displacement along a log-spiral failure surface with crack using rock Hoek–Brown failure criterion

2017 ◽  
Vol 99 ◽  
pp. 74-85 ◽  
Author(s):  
Lian-heng Zhao ◽  
Xiao Cheng ◽  
Liang Li ◽  
Jia-qi Chen ◽  
Yingbin Zhang
Keyword(s):  
Failure Criterion ◽  
Failure Surface ◽  
Seismic Displacement
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