Results 21 to 30 of about 1,442 (214)
Fractal and FractionalTo study the fractal characteristics and energy evolution of sandstones under true three-dimensional stress states, a true triaxial compression test and a cyclic loading and unloading test of sandstone specimens under different loads were carried out ...
Qihang Zhang +2 more
doaj +2 more sources
An Experimental Study on Deformation Fractures of Fissured Rock around Tunnels in True Triaxial Unloads [PDF]
Advances in Materials Science and Engineering, 2015 Joints and cracks are frequently encountered in underground rock mass. During the process of tunnel excavations or other underground construction, the rock will be exposed suddenly, and such sudden unloading process will cause crack expansion and ...
Meng Wang, Zheming Zhu, Jun Xie
doaj +2 more sources
Journal of Rock Mechanics and Geotechnical EngineeringDeep engineering disasters, such as rockbursts and collapses, are more related to the shear slip of rock joints. A novel multifunctional device was developed to study the shear failure mechanism in rocks. Using this device, the complete shear–deformation
Jun Zhao +4 more
doaj +2 more sources
Numerical behavior in clays normally consolidated considering true triaxial compression paths [PDF]
, 2022 En la mecánica de suelos la prueba triaxial, se considera como uno de los métodos más confiables debido a que simula las condiciones del suelo in situ, sin embargo, este tipo de ensayo presenta una gran limitación puesto que asume que los esfuerzos ...
Robles Toquica, Cindy Milena
core +1 more source
Simulation of thermal creep under true triaxial conditions based on TTS constitutive model
Shenzhen Daxue xuebao. Ligong ban, 2023 Monotonic and cyclic thermal loading significantly affect the axial and radial deformation, and lateral pressure coefficient of soil under true triaxial conditions, which poses new challenges to the crack resistance, settlement control and bearing ...
LIU Ziqi, CHENG Xiaohui
doaj +1 more source
Mechanical response of coal rock mass with different proportions under true triaxial load
Meikuang Anquan, 2021 In order to explore the mechanical response law of different coal rock proportion combinations under true triaxial load, the cube specimens with different combination methods were prepared.
DONG Hao
doaj +1 more source
Loading rate dependence of permeability evolution in porous aeolian sandstones [PDF]
, 2004 Mechanical properties of rocks are characterized by their notable dependence on the applied deformation rate. However, little is known about the strain rate dependence of fluid flow properties since most laboratory tests are conducted using a single ...
Ira O. Ojala +8 more
core +1 more source
Influence of principal stress effect on deformation and permeability of coal containing beddings under true triaxial stress conditions [PDF]
Royal Society Open Science, 2019 In situ stress is generally an anisotropic/true triaxial stress (σ1 > σ2 > σ3). Bedding weakens the continuity and integrity of coal. It is critical to understand the mechanical behaviour and gas migration of coal under true triaxial stress conditions ...
Jiahui Dai +3 more
doaj +1 more source
Softening Characteristics of Fractured Granite under True Triaxial Compression [PDF]
长江科学院院报[Objective] This study aims to investigate the mechanical softening behavior of cataclastic granite under different in-situ stress conditions through true triaxial compression tests, thereby providing an experimental basis and theoretical references for ...
LOU Yi-li, SHI Cheng-hua, ZHENG Ke-yue, JIA Chao-jun, ZHOU Hang, WANG Shen-xin
doaj +1 more source
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