Results 231 to 240 of about 19,983 (297)

Degradation Mechanism of Mechanical Properties of Concrete in a High Hydraulic Pressure Environment. [PDF]

Materials (Basel)
Du J, Zhang X, Xia Y, Ji Y.
europepmc   +1 more source

Modeling and experimental validation of bolt–grout bond–slip behavior for deep underground excavation support

Deep Underground Science and Engineering, EarlyView.
A novel shear‐lag model, validated by pull‐out tests, incorporates a constant bond stress stage to predict the complete load–displacement response of grouted rock bolts, providing a new tool for optimizing anchorage length and material toughness in deep underground engineering. Abstract The stability of rock masses in deep underground excavations, such
Wenhui Bian, Xiaohui He, Kexue Wang, Yufei Wu, Guoxin Wang, Shaochen Zhang, Jun Yang   +6 more
wiley   +1 more source

Experimental study on permeability of dry and wet high rank coal specimens related to stress and mechanical properties. [PDF]

Sci Rep
Zhao K, Meng Y, Wang X.
europepmc   +1 more source

Analytical stress solution framework for lined compressed air energy storage chambers and its application to safe burial depth determination and supporting effectiveness evaluation

Deep Underground Science and Engineering, EarlyView.
An analytical framework delivers a closed‐form stress solution for lined compressed air energy storage chambers, enabling the determination of the minimum safe burial depth. The solution quantitatively evaluates lining support effectiveness, offering a reliable tool for chamber design and optimization.
Zeyuan Sun, Cheng Zhao, Jinquan Xing, Qinyuan Luo   +3 more
wiley   +1 more source

Mechanical behavior of cemented paste backfill under the coupled effect of loading rate and moisture content. [PDF]

PLoS One
Wan C, Yang X, Bian J, Xu W, Shi H, Huang H.   +5 more
europepmc   +1 more source

Advancing mine pillar design: Evaluating traditional methods and integrating AI for enhanced stability of pillars in the Great Dyke, Zimbabwe

Deep Underground Science and Engineering, EarlyView.
B1 is bord width 1, B2 is bord width 2, L is the pillar length, W is the pillar width, red color and letter A represent the pillars, and white color and number 1 represent excavated areas. Pstress is the average pillar stress; σv is the vertical component of the virgin stress, MPa; and e is the areal extraction ratio. e = B o B o + B P ${\rm{e}}=\frac{{
Tawanda Zvarivadza, Hendrik Grobler, Peter Apata Olubambi, Moshood Onifade, Manoj Khandelwal   +4 more
wiley   +1 more source

Mechanical properties and energy evolution characteristics of fissure sandstone under the interaction between water and fissures. [PDF]

PLoS One
He Q, Deng J, Yuan G.
europepmc   +1 more source

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

Deep Underground Science and Engineering, EarlyView.
Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu, Wei Qiao, Xianggang Cheng, Xiangsheng Meng, Peichao Feng   +4 more
wiley   +1 more source

Nonlinear Characteristics of Tensile and Compressive Mechanical Parameters for Typical Pavement Materials. [PDF]

Materials (Basel)
Pan Q, Tan Y, Hu J, Zhang L, Lv S, Duan H, Tan P, Yuan J, Zhang T, Song X, Zha X.   +10 more
europepmc   +1 more source

Experimental study on grouting diffusion mechanism of fractured rock. [PDF]

Sci Rep
Zhang C, Li D, Zhang X, Cong Y, Huang Y, Zhang H, Huang Y, Liu Q, Gao X.   +8 more
europepmc   +1 more source