Results 111 to 120 of about 163,434 (247)

Surrounding rock control technology of gob-side entry retaining in deep high mining face

Meikuang Anquan
Under the influence of multiple mining influences, the mining pressure is more intense and the surrounding rock deformation is large, which is easy to cause the surrounding rock instability of gob-side entry retaining in fully mechanized mining face.
Junhu ZHANG, Zhenjiang CHEN, Xiancheng GAO, Lei ZHANG, Jianhua LI, Pengjiang DENG   +5 more
doaj   +1 more source

Intelligent Inversion Analysis of Surrounding Rock Parameters and Deformation Characteristics of a Water Diversion Surge Shaft

Designs
The water diversion surge shaft is vital for a hydropower station. However, the complex geological properties of the surrounding rock make it challenging to obtain its mechanical parameters.
Xing-Wei Zou, Tao Zhou, Gan Li, Yu Hu, Bo Deng, Tao Yang   +5 more
semanticscholar   +1 more source

Fault reactivation by fluid injection: Controls from stress state and injection rate [PDF]

, 2018
We studied the influence of stress state and fluid injection rate on the reactivation of faults. We conducted experiments on a saw-cut Westerly granite sample under triaxial stress conditions.
Brantut, Nicolas, Mitchell, Thomas M., Passelègue, François. X.   +2 more
core   +2 more sources

Residual rock deformation of lined caverns for underground energy storage after air deflation considering stress path

Journal of Rock Mechanics and Geotechnical Engineering
This study investigates the mechanical response of an underground cavern subjected to cyclic high gas pressure, aiming to establish a theoretical foundation for the design of lined rock caverns (LRCs) for energy storage with high internal pressure, e.g ...
Chen Xu, Caichu Xia, Gecheng Zhang, Sheng Wang, Hui Lu, Yingjun Xu   +5 more
doaj   +1 more source

Research on crack distribution characteristics and control technology of surrounding rock in soft rock roadway under different lateral pressure coefficients

Energy Science & Engineering
To solve the problem of controlling large deformation of surrounding rock in deep soft rock roadway, the distribution characteristics and deformation mechanism of surrounding rock cracks in soft rock roadway under different lateral pressure coefficients ...
Yujie Ma, Weijun Wang, Lei Fan, Chao Yuan, Xinyu Tian, Shihai Shu   +5 more
doaj   +1 more source

Deformation of surrounding rock in a shallow large-section tunnel passing through soft-plastic loess layer

Frontiers in Earth Science
In view of the problem of the plastic state of the surrounding rock of loess high-speed railway tunnels changing from hard plastic to soft-plastic, even in a flow-plastic state with increasing moisture content, and appearing collapse and large ...
Yuan Yang, Liu Liu, Liu Liu, Yang Liu, Haotian Zhang, Congnan Guo   +5 more
doaj   +1 more source

Numerical Simulation Study on the Deformation Patterns of Surrounding Rock in Deeply Buried Roadways under Seepage Action

Applied Sciences
To reveal the deformation patterns of the surrounding rock in deeply buried straight-wall arch-shaped roadways under seepage action, this study, based on an FLAC3D numerical simulation and classic elastoplastic theory, investigates the influences of ...
Xuebin Xie, Liang Li
doaj   +1 more source

Influence of vibrations on structures [PDF]

, 2018
One type of occasional structural load is a seismic load. Earthquakes and blasts are typical sources of vibrations, but vibration generated during urban tunnel construction can represent a significant problem.
Kaláb, Zdeněk
core  

Spatiotemporal evolution, mineralogical composition, and transport mechanisms of long-runout landslides in Valles Marineris, Mars [PDF]

, 2020
Long-runout landslides with transport distances of >50 km are ubiquitous in Valles Marineris (VM), yet the transport mechanisms remain poorly understood.
Ehlmann, Bethany L., Watkins, Jessica A., Yin, An   +2 more
core  

3D-Mesomechanical analysis of cracking and spalling of concrete subject to high temperatures [PDF]

, 2013
In this paper, an existing meso-structural model for concrete which had been applied to the study of the mechanical effects of high temperatures in 2D, is extended to 3D, and to more complex coupled thermo-mechanical analysis.
Carol, Ignacio, López Garello, Carlos María, Pérez Carreras, Adrià, Rodríguez, Mariana   +3 more
core