Results 111 to 120 of about 6,394 (206)

Brittle Rock Failure in the Steg Lateral Adit of the Lötschberg Base Tunnel [PDF]

, 2018
Summary: During the crossing of brittle rock formations at the Lötschberg base tunnel, failure phenomena have been observed both at the tunnel face and at the walls. A detailed analysis has been undertaken to explain these behaviours, based on the recent
Descoeudres, F., Kaiser, P. K., Labiouse, V., Rojat, F.   +3 more
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New correlations for estimating uniaxial compressive strength of carbonates in the Egyptian Western Desert

Journal of Engineering and Applied Science
Proper uniaxial compressive strength (UCS) and other rock mechanical properties are essential parameters for planning and stimulating oil and gas wells, especially for unconventional resources.
Mohamed Salah Eid, Abdulaziz M. Abdulaziz, Abdel Sattar Dahab   +2 more
doaj   +1 more source

A mineral-strength conversion model based on LIBS technology and rapid batch testing and application of uniaxial compressive strength

Meitan xuebao
Due to the complexity and abruptness of deep engineering disasters, the mechanical parameters of rocks, particularly uniaxial compressive strength (UCS), play a critical role in stability analysis, risk assessment, support parameter optimization, and ...
Qinghe ZHANG, Xiaorui WANG, Chuanbing WANG, Weiguo LI, Fengqiang GONG, Xinsheng ZHANG, Jingguo LI   +6 more
doaj   +1 more source

An experimental study on strength behaviour of Jointed Rock Mass through modelling under uniaxial compression tests [PDF]

, 2008
Stability analysis of a rock mass is an important and complicated problem related to the safety of engineering buildings. One of the major tasks of engineering geomechanics is to evaluate the rock mass stability both qualitatively and quantitatively. The
Teja, P
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Effects of Different Ratios of Fly Ash and River Sand on Mechanical Properties of Cemented Paste Backfill Materials

Advances in Civil Engineering
The mechanical properties of cemented paste backfill (CPB) are crucial for stope safety. Some mining areas in the Yellow River basin face a shortage of coal gangue, and these areas have abundant river sand (RS) resources.
Jiang Li, Shenggen Cao, Yang Liu, Chiyuan Che, Changzheng Zhao, Shuyu Du, Kaifei Wang, Ruiting Ma   +7 more
doaj   +1 more source

Coupling effect of size and strain rate on uniaxial compressive properties of coral reef limestone

International Journal of Mining Science and Technology
As the main geomaterials for coral reefs oil or gas extraction and underground infrastructure construction, coral reef limestone demonstrates significantly distinct mechanical responses compared to terrigenous rocks.
Hongya Li, Linjian Ma, Mingyang Wang, Jiawen Wu, Jiajun Deng, Zeng Li   +5 more
doaj   +1 more source

Effects of Weathering on some Physical and Mechanical Properties of Ewekoro Limestone, South-western Nigeria [PDF]

, 2017
The study is on the investigation of the effects of weathering on physical and mechanical properties of Ewekoro limestone, south-western Nigeria with the aim to establish the strength of the rock samples for design and engineering purposes.
A, S. M. (Saliu), M, O. B. (Olaleye), O, O. N. (Ogunsola)   +2 more
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Experimental Study of Brittle Behavior of Clay Shale in Rapid Triaxial Compression [PDF]

, 2018
The brittle failure behavior of an over-consolidated clay shale (Opalinus Clay) in undrained rapid triaxial compression was studied. The confining stress levels were chosen to simulate the range of confining stresses relevant for underground excavations ...
Amann, Florian, Button, Edward, Kaiser, Peter   +2 more
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A Comparative Study of UCS Results Obtained from Triaxial Tests Under Multiple Failure State Conditions (Test Type II)

Applied Sciences
In any rock engineering project, the uniaxial compressive strength (UCS) is one of the most relevant parameters to be determined as it is used for a variety of purposes.
Nghia Quoc Trinh, Eivind Grøv, Gunnar Vistnes   +2 more
doaj   +1 more source

Geology of the seabed and shallow subsurface: the Irish Sea [PDF]

, 2015
The British Geological Survey was commissioned by the Crown Estate to assess geological conditions in the Irish Sea in relation to the possible constraints they may place on development of offshore infrastructure. The report describes the geology between
Carter, G., Long, D., Mellett, C.L.
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