Results 231 to 240 of about 111,808 (361)

Mechanical performance of structural lightweight concrete with metallurgical coal aggregates. [PDF]

Sci Rep
Waleed T, Rady M, Mashhour IM, El-Attar M.   +3 more
europepmc   +1 more source

Review and prospects of shear test of bolted rock joints

Deep Underground Science and Engineering, EarlyView.
The laboratory shear test equipment, test method, and numerical simulation of bolted rock joints were summarized. The shortcomings and limitations of the current research were analyzed, and the research prospects were proposed. Abstract Rock bolting is a critical approach in geotechnical engineering for supporting weak rocks.
Shulin Ren, Fan Yang, Manchao He, Yong Yuan, Zhigang Tao   +4 more
wiley   +1 more source

Defect Analysis of Surface Cracks in Mn18Cr2 High-Manganese Wear-Resistant Steel Plate. [PDF]

Materials (Basel)
Yang D, Zhang N, Liu Z, Jiang B.
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

The Role of Current Density Distribution on Local Hardening of 20GL Steel During Electrolytic Plasma Processing. [PDF]

Materials (Basel)
Kurmangaliyev R, Rakhadilov B, Kadyrbolat N, Kussainov R, Maulit A, Mukhametov Y.   +5 more
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

Effects of different types of fibers and fiber mixes on fresh and hardened properties of ultra-high performance concrete. [PDF]

Mater Struct
Patiño J, Galli L, Suraneni P.
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

Recommendation of RILEM TC 281-CCC: RILEM CPC-18R1-guideline for measuring the carbonation depth of hardened concrete using a pH indicator solution. [PDF]

Mater Struct
Bernal SA, Angst UM, Provis JL, Thiel C, Gluth GJG, Villagran-Zaccardi Y, De Belie N.   +6 more
europepmc   +1 more source

Seismic analysis and design of tunnels within fault ground: A review

Deep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang, Yujing Jiang, Xuepeng Zhang, Yuyong Jiao, Ningbo Li, Xiao Wang, Bo Li   +6 more
wiley   +1 more source