Results 201 to 210 of about 11,226 (263)

Study on the composite fracture characteristics of filling and reinforcing cracked rock mass after high temperature damage

Deep Underground Science and Engineering, EarlyView.
Cement infill shares compressive and shear stresses during loading, while interfacial friction hinders crack propagation and reduces stress concentration, improving the rock's load‐bearing capacity. Failure modes vary with crack inclination. Unfilled specimens show four modes.
Shihao Yuan, Qiang Sun, Jianjun Hu, Liwei Zhang, Jishi Geng   +4 more
wiley   +1 more source

Numerical simulation study on the evolution of the temperature field and frozen wall in fractured rock mass

Deep Underground Science and Engineering, EarlyView.
The evolution of the temperature field and frozen wall under different fracture conditions was examined by an artificial ground freezing‐based thermal‐hydraulic coupled model. It was observed that fracture inclination affects the interaction extent of freezing pipes and fracture, while phase transition extent is the dominant factor for heat transfer in
Chenyi Zhang, Tingting Luo, Tao Zhang, Tao Han, Xiaodong Zhao, Haipeng Li, Yanfei Ma, Faxing Zhang, Madhusudhan Bangalore Narasimha Murthy, Weihao Yang   +9 more
wiley   +1 more source

Mechanical characteristics and partition control technology in whole life cycle of deep gob-side entry: A case study. [PDF]

Sci Rep
Bian H, Hao J, Lv J, Zhao L.
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 Instability of Shotcrete Reinforced Slope Based on Embedded Anchor Sensor. [PDF]

Sensors (Basel)
Ning H, Ou J, Jin J.
europepmc   +1 more source

The deformation characteristics and the prefabricated crack pressure relief stability control of a small coal pillar roadway under stress superposition. [PDF]

Sci Rep
Cheng S, Ma Z, Li Y, Zhang X.
europepmc   +1 more source

Bayesian deep reinforcement learning for uncertainty quantification and adaptive support optimization in deep foundation pit engineering. [PDF]

Sci Rep
Gu W.
europepmc   +1 more source

Performance assessment of compression ground anchors in urban deep excavations through numerical and field investigations. [PDF]

Sci Rep
Akbas M, Demirci G, Ozdemir BB, Iyisan R.   +3 more
europepmc   +1 more source

The mega-structure at Stăuceni-'Holm', Botoşani county, Romania and the debate about the governing of Cucuteni-Trypillia-settlements. [PDF]

PLoS One
Mischka D, Mischka C, Kovács A, Aparaschivei C, Marinova E.   +4 more
europepmc   +1 more source

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Observed Performance of a Deep Excavation in Clay

Journal of Geotechnical Engineering, 1989
A test section was established next to a 40-ft-deep, braced excavation made through soft to medium-stiff, saturated clays in Chicago. Surface and subsurface three-dimensional ground movements, pore water pressures, sheet pile deformations and strut loads were measured.
R.J. Finno, D.K. Atmatzidis, S.B. Perkins   +2 more
openaire   +1 more source