Results 91 to 100 of about 99,446 (314)
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 +4 more
wiley +1 more source
Open Geosciences, 2020 The Daqingshan area is located in the Khondalite belt in the northern margin of the North China Craton. It has the best-preserved Mesozoic basin and is an ideal area for research on Jurassic strata.
Zhang Minjie +4 more
doaj +1 more source
Age constraints on the evolution of the Quetico belt, Superior Province, Ontario [PDF]
Much attention has been focused on the nature of Archean tectonic processes and the extent to which they were different from modern rigid-plate tectonics.
Percival, J. A., Sullivan, R. W.
core +1 more source
Accretionary Tectonics of the North American Cordillera [PDF]
, 1983 Continental geology stands on the threshold of a change that is likely to be as fundamental as plate-tectonic theory was for marine geology. Ongoing seismic-reflection investigations into the deep crustal structure of North America are verifying that ...
Saleeby, Jason B.
core +2 more sources
Temperature‐dependent shear behavior and constitutive model of the rock–concrete interface
Deep Underground Science and Engineering, EarlyView.Shear tests were conducted to investigate the temperature‐dependent shear behavior of the rock–concrete interface, highlighting the interaction between the surrounding rock and the lining during tunnel fires. Under experimental conditions, concrete exhibited greater temperature sensitivity than rock, with the shear fracture surface transitioning from ...
Hongbin Chen +6 more
wiley +1 more source
Open Geosciences, 2017 Petrography of the sandstones of Ecca Group, Karoo Supergroup in the Eastern Cape Province of South Africa have been investigated on composition, provenance and influence of weathering conditions.
Baiyegunhi Christopher +2 more
doaj +1 more source
Bulletin of the Mineral Research and Exploration, 2018 Bu çalışmada Yürekli volkanitinin (Biga Yarımadası, KB Türkiye) petrografisi, jeokimyası ve kökeninin ortaya konulması amaçlanmıştır. Tersiyer volkanizmasının yaygın olduğu Batı Anadolu (KB Türkiye), tektonik ve magmatik olayların berbaber gözlendiği ...
Ece Simay SAATCI, ZAFER ASLAN
doaj +1 more source
Geology of the Northern Simbruini Mts. (Abruzzo – Italy) [PDF]
, 2016 This paper presents the results of a geological mapping project across the northern portion of the Simbruini Mts. (Latium-Abruzzi Domain – Central Apennines), where a thick Cretaceous and Miocene carbonate succession, followed by a thick upper Miocene ...
Fabbi, Simone
core +1 more source
Deep Underground Science and Engineering, EarlyView.The effects of grout strength and thickness on the shear behavior of bolt–grout interfaces (BGI) under constant normal stiffness conditions are investigated. Shear strength, failure modes, and acoustic emission characteristics are examined. The findings reveal that grout strength exerts a significantly greater influence on BGI shear strength and ...
Sunhao Zhang +5 more
wiley +1 more source
Deep Underground Science and Engineering, EarlyView.A scientometric analysis of 2449 journal articles and a comprehensive review of 336 papers were conducted, discussing and identifying challenges and research gaps in rockburst prediction and prevention and proposing an ontology‐based framework for better decision‐making in underground excavations. Abstract With underground engineering projects becoming
Hongchuan Yan +6 more
wiley +1 more source