Results 11 to 20 of about 1,553 (109)

An Improved Nishihara Model Considering the Influence of Moisture Content on the Whole Shear Creep Process of Shale

Processes
The moisture content is closely related to the shear creep deformation behavior of soft rock, and the linear creep deformation behavior of soft rock can be described by the classical Nishihara model. However, its accuracy in describing accelerated nonlinear creep characteristics and the effects of moisture content still needs to be improved.
Ma, Liyao, Lei, Mingfeng, Wang, Lichuan, Hu, Bin, Zhao, Yaqian, Zhang, Jingjing   +5 more
openaire   +3 more sources

Redefining Carbon Electrodes as Hierarchically Designable Reaction Fields for Electrochemical Biosensing. [PDF]

Small
This Perspective proposes viewing carbon electrodes as hierarchically designable reaction fields for electrochemical biosensing. Crystallinity, heteroatom dopants, edge sites, and pore size are highlighted as key structural variables governing electron transfer, mass transport, biomolecule immobilization, and local concentration.
Yuzawa H, Itoh T, Laochai T, Rodthongkum N, Nishihara H.   +4 more
europepmc   +2 more sources

An improved nishihara model incorporating fractional derivatives for water-induced deterioration and its experimental validation on rock creep

Results in Engineering
Wenhua Zha, Bingwen Wang, Tao Xu, Xuejian Tan, YaoZong Li, Yuanxin Xu   +5 more
openaire   +3 more sources

Deformation Prediction of Tunnel-Surrounding Rock Considering the Time Effect of the Viscosity Coefficient: A Case of an NATM-Excavated Tunnel

Frontiers in Earth Science, 2022
Considering engineering problems such as complicated stress and the difficulty in controlling large deformation while a tunnel passes through a soft rock stratum, a theoretical prediction model of convergence deformation of tunnel-surrounding rock is ...
Da Hu, Da Hu, Xiaoqiang Liang, Yongsuo Li, Youping Wu, Lei Jiang   +5 more
doaj   +1 more source

Improved Nishihara model considering the effect of moisture content on the whole shear creep process of shale

, 2022
Abstract The moisture content is closely related to the shear creep deformation behavior of soft rock, and the linear creep deformation behavior of soft rock can be described by the classical Nishihara model. However, the classical Nishihara model cannot describe the deformation characteristics of the whole process of shear creep including ...
Bin Hu, Liyao Ma, Erjian Wei, Kai Cui, Zhen Zhang, Zeqi wang   +5 more
openaire   +1 more source

Research on Creep Model of Roadway Surrounding Rock Based on Variable Creep Parameters

Meikuang Anquan, 2020
In order to study the creep behavior of surrounding rock of Huaying Coal Mine in Sichuan under different confining pressure characteristics, the triaxial creep test of sandstone was carried out by TAW-2000 test system.
LIU Changming, ZHANG Hong
doaj   +1 more source

Determination of the parameters of rock viscoelastic creep model and analysis of parameter degradation

Scientific Reports, 2023
Different stress creep tests are conducted on the sandstone in this study to better describe the creep properties of rocks under different stress states. A model that describes the rock creep process is established.
Zhiming Zheng, Yu Yang, Cheng Pan
doaj   +1 more source

Nonlinear Viscoelastic–Plastic Creep Model Based on Coal Multistage Creep Tests and Experimental Validation

Energies, 2019
The development of fractures, which determine the complexity of coal creep characteristics, is the main physical property of coal relative to other rocks.
Junxiang Zhang, Bo Li, Conghui Zhang, Peng Li   +3 more
doaj   +1 more source

Creep characteristics and nonlinear creep damage model of Bocigou formation slate in Kangding-Xinduqiao section of West Sichuan

Shuiwen dizhi gongcheng dizhi, 2023
The creep characteristics of rock are closely related to the long-term stability of rock mass. With the excavation of deep buried tunnels in west China, in order to ensure the safety of engineering and the long-term stability of underground buildings, it
Xiao HE, Shengshan HOU, Xiansen MENG, Liang CHEN, Mingxue LIU, Zhen FENG, Ang LI, Feng JI, Changbao GUO   +8 more
doaj   +1 more source

Experimental investigation of the mechanical properties of mud shale under water-bearing conditions and its applications

Scientific Reports, 2022
Mud shale, used in drilling engineering, is prone to hydration and expansion, resulting in creep deformation that leads to wellbore shrinkage and pipe sticking incidents.
Xinxin Fang, Hong Feng, Fengling Li, Hao Wang   +3 more
doaj   +1 more source