Results 31 to 40 of about 3,961,642 (152)
Case Studies in Construction MaterialsThe combination of nanocolloidal silica and aluminate cement is a potential technical approach to solve the problem of mudstone grouting, but there is a lack of high-performance admixtures to improve early strength and gel time.
Dongjiang Pan +3 more
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Study on the Creep and Fracture Evolution Mechanism of Rock Mass with Weak Interlayers
Advances in Materials Science and Engineering, 2022 To study the influence of weak interlayers on the creep failure characteristics of rock masses, based on the continuous-discontinuous method (CDEM), the uniaxial compression creep experiments of rock masses containing weak layers were numerically ...
Na Zhao +3 more
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, 2019 Flaws existing in rock mass are one of the main factors resulting in the instability of rock mass. Epoxy resin is often used to reinforce fractured rock mass. However, few researches focused on mechanical properties of the specimens with a resin-infilled
Le, Huilin +7 more
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Scientific Reports, 2023 A cataclastic rock mass is a poor type of engineering geological rock mass. The determination of the shear failure characteristics and shear strengths of cataclastic rock masses can provide key basis for the design and construction of infrastructure ...
Shan Dong, Zhichun Lu, Xi Hu
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Rock Mass Quality Evaluation Based on Unascertained Measure and Intuitionistic Fuzzy Sets
Complexity, 2020 Evaluation of rock mass quality is of great significance to the design and construction of geotechnical engineering. In order to evaluate the quality of engineering rock mass scientifically and deal with the fuzzy information in the rock mass quality ...
Shuliang Wu, Xidong Du, Shan Yang
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Applied Sciences, 2019 In extensively used empirical rock-mass classification systems, the rock-mass rating (RMR) and tunneling quality index (Q) system, rock-mass quality, and tunnel span are used for the selection of rock bolt length and spacing and shotcrete thickness.
Jonguk Kim +4 more
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BuildingsThis study investigates the influence of the wave impedance ratio on the accuracy of joint location predictions in soft–hard interbedded rock mass (SHIRM) using the reflected wave method.
Changsong Huang, Qihao Yang, Lifeng Fan
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Numerical Simulation of Long-Term Deterioration of Rock Mass Supported by Shotcrete Lining
Frontiers in Earth Science, 2022 The deterioration of rock mass and shotcrete lining has major consequences on the long-term performance of tunnels in the weak rock mass. In this study, the long-term behavior of rock mass and shotcrete in tunnels was simulated by using the three ...
Chao Kong +5 more
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Motion of rock masses on slopes
Geologija, 2006 This paper shows the different ways of how rock masses (stones, rocks, and blocks) move along slopes and for each different way of motion (free fall, bouncing, rolling, sliding, slowing down, lubrication, fluidization)adequatedynamicequationsaregiven.Knowingthe kinematics and dynamics of travelling rock masses is necessary for mathematical modeling of ...
Urška Petje +2 more
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Drill Monitoring for Rock Mass Grouting : Case Study at the Stockholm Bypass
, 2021 In tunneling, rock mass grouting is a method applied to reduce water ingress. Grouting is influenced by rock mass conditions, especially apertures, frequency, and continuation of fracturing.
Schunnesson, Håkan, +3 more
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