Results 1 to 10 of about 28,295 (164)
Key technologies of drilling process with raise boring method
Journal of Rock Mechanics and Geotechnical Engineering, 2015 This study presents the concept of shaft constructed by raise boring in underground mines, and the idea of inverse construction can be extended to other fields of underground engineering.
Yiping Meng
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Ichnogenus Trypanites in the Ordovician of Estonia (Baltica) [PDF]
Estonian Journal of Earth Sciences, 2023 Trypanites is a common boring in Ordovician hardgrounds of Estonia (Baltica). The depth of the sedimentary basin and sedimentation rates controlled the distribution of Trypanites. The trace-makersâ community was diverse and changing over time.
Ursula Toom, Jukka Kuva, Dirk Knaust
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Geofluids, 2023 The super-speed tube transport (SSTT) system is called the fifth traffic mode internationally. One of the critical technical problems for the design of SSTT system is the sealing reliability in vacuum tube structures. In this paper, an experimental study
Qianqian Lv +5 more
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Key Technology of TBM Excavation in Soft and Broken Surrounding Rock
Applied Sciences, 2023 Tunnel Boring Machine (TBM), as the most advanced construction equipment for rock tunnels, has been widely used in railway tunnel engineering, water conservancy tunnel engineering, urban rail engineering, coal mine roadway engineering, and other fields ...
Hailei Zhao +4 more
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Geofluids, 2023 The research is aimed at exploring the influences of microwave irradiation on the physicomechanical properties and Cerchar abrasivity index (CAI) of rocks.
Gaoming Lu +5 more
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Results in Engineering, 2021 Microwave energy has been demonstrated to be able to assist mechanical rock breaking in geotechnical and mining engineering. The aim of this research is to study the influences of the interaction between microwave energy and rocks on the performance of ...
Gaoming Lu +3 more
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Modeling of the frequency response function and its evaluation during boring
Mechanics and Advanced Technologies, 2021 Finite element method of simulating frequency response function (FRF) for boring tool in LS-Dyna solver is investigated in this work. Nowadays, computer numerical simulation allows to obtain FRF using different materials model with high precision ...
Максим Шихалєєв +1 more
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Model Test of TBM Tunnel Crossing Large Dip Angle Fault Zone under High In Situ Stress
Geofluids, 2022 In order to study the effect of fracture zone on tunnel stability under high ground stress and to reveal the disaster mechanism of fracture zone surrounding rock compressor, the TBM tunnel of Fragrant Furnace Mountain Tunnel in the F12 fracture zone in ...
Liming Wang +6 more
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Diversity, 2022 Bioerosion caused by boring mussels (Mytilidae: Lithophaginae) can negatively impact coral reef health. During biodiversity surveys of coral-associated fauna in Curaçao (southern Caribbean), morphological variation in mussel boreholes was studied ...
Bert W. Hoeksema +6 more
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Quantifying Bore‐Bore Capture on Natural Beaches [PDF]
Journal of Geophysical Research: Oceans, 2020 AbstractBore‐bore capture occurs when a faster moving bore captures a slower moving bore or the shoreline while both are propagating shoreward in the surf or swash zones and is quantified here for the first time using wave tracking methods applied to data collected at seven sandy Australian beaches. The results showed that, for the locations where bore‐
C. E. Stringari, H. E. Power
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