Results 31 to 40 of about 12,995 (225)

Analysis of plastic zones in surrounding rocks around a circular tunnel considering the effect of intermediate principal stress and heterogeneity [PDF]

MATEC Web of Conferences, 2019
Based on a modified Mohr-Coulomb criterion with a non-uniform coefficient, a calculation method of plastic zone boundary of surrounding rocks in a circular tunnel in non-uniform stress field is established.
Deng Shuxin, Zheng Yonglai, Feng Lipo, Tuan Le Van, Yue Cuizhou, Wu Zhuorui   +5 more
doaj   +1 more source

3D limit analysis of rock slopes based on equivalent linear failure criterion with tension cut-off

Journal of Rock Mechanics and Geotechnical Engineering, 2023
Hoek-Brown (HB) failure criterion is widely used to predict the strength of intact or heavily jointed rock mass. For stability analysis of rock slopes governed by the HB failure criterion, the equivalent linearity to Mohr-Coulomb (MC) criterion is often ...
Zhibin Sun, Bowen Wang, Yongxin Li, Jingshu Xu, Jian Ji   +4 more
doaj   +1 more source

The meshfree localized Petrov-Galerkin approach in slope stability analysis [PDF]

, 2019
The article focuses on the use of the meshfree numerical method in the field of slope stability computations. There are many meshfree implementations of numerical methods.
Bulko, Roman, Mužík, Juraj, Niemiec, Dominik   +2 more
core   +1 more source

Simulating spatial and temporal evolution of multiple wing cracks around faults in crystalline basement rocks [PDF]

, 2007
Fault zones are structurally highly spatially heterogeneous and hence extremely complex. Observations of fluid flow through fault zones over several scales show that this structural complexity is reflected in the hydrogeological properties of faults ...
Anderson, Aydin, Burgmann, Byerlee, Caine, COMSOL, Cruikshank, d'Alessio, d'Alessio, Dalguer, do Nascimento, Du, Du, Evans, Evans, Evans, Evans, Fairley, Galli, Jonathan P. Willson, Lim, Lockner, Losh, Losh, Martel, Martel, Martin, Morrow, Niemeijer, Pollard, Rebecca J. Lunn, Segall, Shen, Tang, Turcotte, Vermilye, Wibberley, Willson, Yamashita, Zoe K. Shipton   +39 more
core   +1 more source

New Interface for Assessing Wellbore Stability at Critical Mud Pressures and Various Failure Criteria: Including Stress Trajectories and Deviatoric Stress Distributions

Energies, 2019
This study presents a new interface for wellbore stability analysis, which visualizes and quantifies the stress condition around a wellbore at shear and tensile failure.
Jihoon Wang, Ruud Weijermars
doaj   +1 more source

Gravity-driven Dense Granular Flows [PDF]

, 2000
We report and analyze the results of numerical studies of dense granular flows in two and three dimensions, using both linear damped springs and Hertzian force laws between particles.
, Bagnold R. A., Bagnold R. A., Brown R. L., Coulomb C. A., Cundall P. A., Drake T., Fukushima E., Johnson K. L., Mindlin R. D., Nakagawa M., Nedderman R. M., Schäfer J., Silbert L. E.   +13 more
core   +1 more source

A new approach for the fracture grouting pressure in soil mass

Advances in Mechanical Engineering, 2018
This study focuses on analytical solutions of the fracture grouting pressure. Based on the cavity expansion and fracture grouting mechanism, the small deformation in the elastic zone, large deformation in the plastic zone, and non-associated flow rules ...
Zhi-bin Wang, Jin-feng Zou, Hai Yang
doaj   +1 more source

Mathematical modeling of materially nonlinear problems in structural analyses, Part I: Theoretical fundamentals [PDF]

Facta Universitatis. Series: Architecture and Civil Engineering, 2010
Material models describe the way they behave when loaded. The paper presents the development of the model beginning with the simplest linear-elastic and rigid-plastic ones.
Bonić Zoran, Prolović Verka, Mladenović Biljana   +2 more
doaj   +1 more source

Numerical experiments concerning long-term deformation of rock samples [PDF]

, 2019
Purpose is to develop modeling methods of long-term rock sample deformation and failure under various loading conditions with the help of finite-element method of failure rock modeling (DESTROCK-FE). Methods.
Chantsev, V, Olovyannyy, A
core   +1 more source

Theoretical Analysis of Damaged Width & Instability Mechanism of Rib Pillar in Open-Pit Highwall Mining

Advances in Civil Engineering, 2019
To improve the resources’ recovery ratio and the economic benefits of open-pit mines, the development of highwall mining is used to exploit residual coal.
Rui Wang, Shuai Yan, Jianbiao Bai, Zhiguo Chang, Tianhao Zhao   +4 more
doaj   +1 more source