Results 51 to 60 of about 84,062 (265)
Data‐driven analysis of the spatial dependence of grouting efficiency during tunnel excavation
Deep Underground Science and Engineering, EarlyView.Prediction of grouting efficiency using machine learning is enhanced by adopting a training strategy that accounts for the grouting process across multiple rounds. Abstract Grouting with water–cement mixtures is the most widely used and cost‐effective method for managing excess water inflow during tunnel construction.
Huaxin Liu, Xunchang Fei, Wei Wu
wiley +1 more source
Experimental study on the performance of shield tunnel tail grout in ground
Underground SpaceShield tail grouting is an important measure to control tunnelling-induced ground deformation by injecting prepared grouting materials to fill the tail gap. The working performance of grout is usually invisible and hard to obtain in construction.
Jiaxin Liang +5 more
doaj +1 more source
Meitan kexue jishu, 2023 With the development of society, a large number of waste autoclaved blocks and gangue on the surrounding environment, in order to protect the environment and reuse resources, these solid wastes have been effectively utilized in the field of grouting ...
Lianwei REN +4 more
doaj +1 more source
Antenna grout replacement system [PDF]
, 1983 An epoxy grout suitable for use in mounting and positioning bearing runner plates used in hydrostatic bearing assemblies for rotatably mounting large radio telescope structures to stationary support pedestals is described.
Mcclung, C. E.
core +1 more source
The influence of process gas type on the enamel surface condition of a high power diode laser generated single-stage ceramic tile grout seal [PDF]
, 2002 Almost all laser materials processing operations require the simultaneous use of an process or assist gas. This paper examines the use of O2, Ar, N2 and He as process gasses during the firing of a vitreous enamel to form a single-stage ceramic tile grout
Edwards, Roger E. +3 more
core +1 more source
Deep Underground Science and Engineering, EarlyView.The Great Dyke of Zimbabwe is notable for its rich platinum group metal deposits but poses significant geological and geotechnical challenges due to its complex rock types and structural features. Traditional pillar design methods are insufficient for addressing these complexities; the study suggests incorporating advanced techniques such as machine ...
Tawanda Zvarivadza +3 more
wiley +1 more source
Measurement of sulfate ion concentration in segregated post-tension grout
CementCorrosion of steel strand embedded in deficient grout has been associated with elevated concentrations of sulfate ions stemming from grout segregation and the adverse influences of excess mix water and grout prehydration.
Samanbar Permeh +2 more
doaj +1 more source
Performance of shallow anchor in ice-rich silt [PDF]
, 2014 Thesis (M.S.) University of Alaska Fairbanks, 2014Shallow anchor systems have been widely used for decades due to their time and cost efficiency. Yet when it comes to cold regions like Alaska, new challenges caused by the harsh environment need to be ...
Lin, Chuang, 林闯
core
Self-Assembly of 4-sided Fractals in the Two-handed Tile Assembly Model
, 2018 We consider the self-assembly of fractals in one of the most well-studied models of tile based self-assembling systems known as the Two-handed Tile Assembly Model (2HAM).
D Doty +16 more
core +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 +4 more
wiley +1 more source