Results 51 to 60 of about 66,486 (308)
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
Deep Underground Science and Engineering, EarlyView.This paper investigates the high‐pressure water jet‐pick combined rock‐breaking mode (HPC), which employs high‐pressure water jets to precut grooves on both sides of the picks. The rock‐breaking patterns and performance of the HPC method are obtained, and the auxiliary rock‐breaking mechanism of water jet grooving is revealed.
Jingjing Lu +6 more
wiley +1 more source
Frontiers in Microbiology, 2018 The interaction of a single bacterial species (Burkholderia fungorum) with basaltic rocks from the ICDP HSDP2 drill core and synthetic basaltic glasses was investigated in batch laboratory experiments to better understand the role of microbial activity ...
Marius Stranghoener +3 more
doaj +1 more source
Effects of high temperatures on soil properties : lessons to share from smouldering remediation experience [PDF]
, 2015 Aggressive, high-temperature contaminant remediation processes such as smouldering remediation are growing in popularity as technical knowledge of their capabilities becomes more widespread.
Switzer, Christine +2 more
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Planetary Bioresources and Astroecology 1. Planetary Microcosm Bioassays of Martian and Carbonaceous Chondrite Materials: Nutrients, Electrolyte Solutions, and Algal and Plant Responses [PDF]
, 2002 The biological fertilities of planetary materials can be assessed using microcosms based on materials in martian and carbonaceous chondrite meteorites.
Mautner, Michael Noah
core +2 more sources
Deep Underground Science and Engineering, EarlyView.This study investigates ground subsidence during tunnel excavation in karst areas, highlighting the combined effects of karst cave proximity, cave size, and soil spatial variability. Findings suggest that shorter cave distances and larger cave sizes increase subsidence variability, and a modified Peck formula is proposed for more accurate subsidence ...
Zhenghong Su +4 more
wiley +1 more source
GeoHealth, 2022 We studied the dust fractions of the smelting slag, mine tailings, and soil from the former Ni‐Cu mining and processing district in Selebi‐Phikwe (eastern Botswana).
Vojtěch Ettler +10 more
doaj +1 more source
Perlaksanaan latihan industri dalam meningkatkan kebolehkerjaan : satu kajian kes pelajar-pelajar bidang perhotelan di Politeknik Johor Bahru [PDF]
, 2007 Kajian ini merupakan kajian penilaian perlaksanaan Latihan Industri dalam meningkatkan kebolehkeijaan pelajar-pelajar dalam kursus Pengurusan Hotel dan Katering. Kajian ini dilakukan untuk mengetahui sejauh mana pelajar dapat mengaplikasi ilmu teori dan
Mohd Jelani, Anida
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Critical expansion points: Mechanical signs of surrounding rock instability
Deep Underground Science and Engineering, EarlyView.This study proposes the Rock Bearing‐Expansion Model (RockBEM) with critical expansion points (CEPs) to quantify post‐peak damage stages in deep‐buried rock masses via plane strain compression test (PSCT). CEP hysteresis&interval ratios reveal bearing performance dynamics and failure severity, advancing mechanistic insights into deep underground rock ...
Jiaqi Wen +4 more
wiley +1 more source
Impact-induced mixing generated the stratified soils of the Lunar South Pole Aitken Basin
Communications Earth & EnvironmentThe Mg-pyroxene annulus in the South Pole–Aitken (SPA) basin holds crucial information about the lunar crustal evolution, yet its mineralogy and origin remain debate. Here we analyzed the mineralogy, exogenic ejecta, and soil evolution of the 2.8-billion-
Haijun Cao +10 more
doaj +1 more source