Results 61 to 70 of about 33,876 (253)

Characterization of Asphalt Treated Base Course Material [PDF]

, 2010
INE/AUTC 11 ...
Li, Peng, Liu, Juanyu
core  

Use of elastic stability analysis to explain the stress-dependent nature of soil strength [PDF]

, 2015
The peak and critical state strengths of sands are linearly related to the stress level, just as the frictional resistance to sliding along an interface is related to the normal force. The analogy with frictional sliding has led to the use of a ‘friction
Hanley, KJ, Huang, X, O'Sullivan, C, Wadee, MA   +3 more
core   +3 more sources

Probability prediction of true‐triaxial compressive strength of intact rocks based on the improved PSO‐RVM model

Deep Underground Science and Engineering, EarlyView.
In this work, we propose an improved particle swarm optimization (PSO) algorithm and develop an improved PSO‐relevance vector machine (RVM) model as a substitute for traditional true‐triaxial testing. The model's high prediction accuracy was validated through comparisons with two other machine learning methods and five three‐dimensional Hoek–Brown type
Qi Zhang, Maohui Wang, Ning Wang, Yixin Shen, Xuzhen He   +4 more
wiley   +1 more source

True triaxial modeling test of high-sidewall underground caverns subjected to dynamic disturbances

Journal of Rock Mechanics and Geotechnical Engineering
Seismicity resulting from the near- or in-field fault activation significantly affects the stability of large-scale underground caverns that are operating under high-stress conditions.
Chuanqing Zhang, Jinping Ye, Ning Liu, Qiming Xie, Mingming Hu, Lingyu Li   +5 more
doaj   +1 more source

Resilient Modulus—Physical Parameters Relationship of Improved Red Clay by Dynamic Tri-Axial Test

Applied Sciences, 2019
As one of the important parameters used in the analysis and design of subgrade, resilient modulus is directly related to the safety, economic and life time of subgrade structure.
Haiping Yuan, Weiqiang Li, Yixian Wang, Hang Lin, Yan Liu   +4 more
doaj   +1 more source

Experimental Study of Strain Rockburst considering Temperature Effect: Status-of-the-Art and Prospect

Shock and Vibration, 2021
In deep mining and excavation of tunnels with high geothermal, the surrounding rock is not only subjected to high ground stress but also subjected to high temperature.
Lei Xu, Fengqiang Gong
doaj   +1 more source

Evaluation of a permeability-porosity relationship in a low permeability creeping material using a single transient test [PDF]

, 2009
A method is presented for the evaluation of the permeability-porosity relationship in a low-permeability porous material using the results of a single transient test. This method accounts for both elastic and non-elastic deformations of the sample during
Ai, Berge, Berge, Bernabé, Bernabé, Bernabé, Bernabé, Berryman, Biot, Brace, Breysse, Brown, Coussy, David, Detournay, Escoffier, Ghabezloo, Ghabezloo, Ghabezloo, Ghabezloo, Grasley, Hart, Hart, Jean Sulem, Jérémie Saint-Marc, Meziani, Rice, Scherer, Scherer, Scherer, Scherer, Siavash Ghabezloo, Sulem, Taylor, Vardoulakis, Walder, Wang, Zhu, Zimmerman, Zimmerman   +39 more
core   +5 more sources

Study on the failure mechanism of the shield excavation face in the sandy cobble stratum under different buried depths

Deep Underground Science and Engineering, EarlyView.
Abstract One of the significant challenges faced in shield tunnel construction is the risk of collapse resulting from abrupt changes in soil conditions in advance of the working face, particularly within the sandy cobble stratum. This study aims to effectively manage these sudden variations and to further investigate the failure mechanisms associated ...
Hua Jiang, Chongyang Liu, Ao Zhang, Xiaoyan Zhang, Yuhang Li   +4 more
wiley   +1 more source

Resilient Modulus Characterization of Alaskan Granular Base Materials [PDF]

, 2010
INE/AUC 11 ...
Li, Lin, Liu, Juanyu, Zhang, Xiong
core  

Modeling the gravitational potential of a cosmological dark matter halo with stellar streams [PDF]

, 2016
Stellar streams result from the tidal disruption of satellites and star clusters as they orbit a host galaxy, and can be very sensitive probes of the gravitational potential of the host system. We select and study narrow stellar streams formed in a Milky-
Hartke, Johanna, Helmi, Amina, Sanderson, Robyn E.   +2 more
core   +2 more sources