Results 61 to 70 of about 1,591 (253)
Safety of engineered structures against blast vibrations: A case study
Journal of Rock Mechanics and Geotechnical Engineering, 2016 Blasting used for rock excavation is associated with ground vibrations having potential damage to surrounding structures. The extent of damage produced in a structure depends largely on ground motion characteristics, dynamic characteristics of structure ...
G.R. Tripathy, R.R. Shirke, M.D. Kudale
doaj +1 more source
Can DNA from wet, temperate soils be used for palaeoecological reconstruction?
Journal of Quaternary Science, EarlyView.ABSTRACT Sedimentary ancient DNA in well‐dated contexts (sedaDNA) has great potential as a palaeoecological proxy. A few studies have attempted palaeoecological reconstructions using sedaDNA from soil; these studies have been mainly restricted to cold and/or dry soils.
Nick A. Cutler +3 more
wiley +1 more source
Journal of Quaternary Science, EarlyView.ABSTRACT Upland farming in Europe is frequently assumed to have been limited and precarious, despite relict spade‐dug ridges providing firm evidence of past crop growing. Direct evidence for crop types in post‑Medieval to Modern (~since 1500 CE) uplands is rare; yet, in Ireland, relict spade‐dug ridges that date to this period are commonly interpreted ...
Helen Essell, Gill Plunkett
wiley +1 more source
Analysis of blasting damage in adjacent mining excavations
Journal of Rock Mechanics and Geotechnical Engineering, 2015 AbstractFollowing a small-scale wedge failure at Yukon Zinc's Wolverine Mine in Yukon, Canada, a vibration monitoring program was added to the existing rockbolt pull testing regime. The failure in the 1150 drift occurred after numerous successive blasts in an adjacent tunnel had loosened friction bolts passing through an unmapped fault.
Yugo, Nick, Shin, Woo
openaire +2 more sources
Integrating Grain to Ground Motion Data for Critical Rock Bridge and Slope Failure Analysis
International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.ABSTRACT Rock masses can fail catastrophically with little warning, yet their stability depends on hidden internal connections that channel forces and localise damage. Among these, rock bridges–a “known unknown” in slope mechanics–lock fractured rock and control how failure unfolds, but their concealed geometry and uncertain strength obscure where and ...
Antoinette Tordesillas +5 more
wiley +1 more source
Research on Micro-Vibration Blasting Tunneling Construction of Large-Span Metro Station in Hard Rock
Chengshi guidao jiaotong yanjiuObjectiveFor the tunnel construction of large-span metro stations in hard rock, it is necessary to investigate the applicability and vibration effect characteristics of micro-vibration blasting method in order to improve the conventional blasting ...
Jun XIE
doaj +1 more source
Safety Analysis of the Tunnel Excavation Blasting and the Supporting
DEStech Transactions on Environment, Energy and Earth Sciences, 2019 Wuhan east lake tunnel project is located in the national 5 a grade within the east lake scenic area, and it is a key project of Wuhan, which has a higher requirement on safety civilization construction. Using traditional unidirectional drivage CRD construction method in tunnel construction, significant impact on construction period, dismantling ...
Dong-jie WANG, Xian-guo WU, Lei WANG
openaire +2 more sources
How can children and young people have a voice in urban treescapes?
People and Nature, EarlyView.Abstract Scientific understanding of climate change has, to date, failed to result in sufficient action. This paper proposes that a deficit model of top‐down learning and dissemination in relation to public engagement with science may be part of the problem, particularly when considering the attitudes, values and empowerment of children and young ...
Simon Carr +10 more
wiley +1 more source
National Policy Coherence Counts for Reducing Inequality in Global Climate and Development Agendas
Sustainable Development, EarlyView.ABSTRACT International institutions promote policy coherence as crucial to the effective and fair implementation of global sustainability agendas, though the evidence for its benefits is slim. We present here the first systematic cross‐country dataset on the consequences of national government efforts to promote policy coherence for vulnerable groups ...
Katherine Browne +10 more
wiley +1 more source
Vibration velocity and frequency characteristics of surrounding rock of adjacent tunnel under blasting excavation. [PDF]
Sci Rep, 2022 Luo Y +5 more
europepmc +1 more source