Results 1 to 10 of about 48,211 (144)
Background Measurements in the Gran Sasso Underground Laboratory [PDF]
, 2011 The gamma background flux below 3000 keV in the Laboratori Nazionali del Gran Sasso (LNGS), Italy, has been measured using a 3" diameter NaI(Tl) detector at different underground positions: In hall A, hall B, the interferometer tunnel, and inside the ...
Baudis, Laura +7 more
core +1 more source
Arguments for a "U.S. Kamioka": SNOLab and its Implications for North American Underground Science Planning [PDF]
, 2006 We argue for a cost-effective, long-term North American underground science strategy based on partnership with Canada and initial construction of a modest U.S. Stage I laboratory designed to complement SNOLab.
Aalseth +22 more
core +1 more source
Microclimate variations between semienclosed and open sections of a marathon route [PDF]
, 2013 The Hong Kong Standard Chartered Marathon, held annually, is one of the most popular international marathon events. Its primarily urban environmental setting characterized by high-density urban areas, semienclosed tunnels, and suspension bridges ...
HART, Melissa +2 more
core +3 more sources
TBM pressure models: calculation tools [PDF]
, 2015 Mechanized tunnel construction in soft ground has evolved significantly over the last 20 years, especially on the matter of settlement control. This was achieved by guiding the TBM operation to control the main factors that induce soil displacements ...
Bezuijen, Adam +1 more
core +1 more source
, 1982 An improved test section for a supersonic or hypersonic wind tunnel is disclosed wherein the model tested is shielded from the noise normally radiated by the turbulent tunnel wall boundary layer.
Beckwith, I. E., Creel, T. R., Jr.
core +1 more source
The Interaction Between Shield, Ground and Tunnel Support in TBM Tunnelling Through Squeezing Ground [PDF]
, 2018 When planning a TBM drive in squeezing ground, the tunnelling engineer faces a complex problem involving a number of conflicting factors. In this respect, numerical analyses represent a helpful decision aid as they provide a quantitative assessment of ...
Anagnostou, G., Ramoni, M.
core
Foam used during EPB tunnelling in saturated sand, parameters determining foam consumption [PDF]
, 2012 The amount of foam injected during drilling with an EPB-shield in saturated sand is quite often based on experience and/or empiric relations. A method is presented in to calculate the amount of foam needed to create a muck with limited or no grain stress.
Bezuijen, Adam
core +1 more source
The behaviour of a two-component backfilling grout used in a Tunnel-Boring Machine [PDF]
, 2011 The instantaneous filling of the annulus that is created behind the segment lining at the end of the tail during the TBM advance is an operation of paramount importance.
Borio, Luca +2 more
core
Ultra-sensitive in-beam gamma-ray spectroscopy for nuclear astrophysics at LUNA
, 2008 Ultra-sensitive in-beam gamma-ray spectroscopy studies for nuclear astrophysics are performed at the LUNA (Laboratory for Underground Nuclear Astrophysics) 400 kV accelerator, deep underground in Italy's Gran Sasso laboratory.
A. CACIOLLI +32 more
core +1 more source
Geofluids, 2023 To use urban underground space more efficiently is a research hotspot of urban underground development. Compared with conventional circular tunnels, quasirectangular tunnels have the characteristics of larger space utilization and higher economic benefits, gradually used in urban rail engineering in recent years.
Kun Zhang +4 more
openaire +2 more sources