Results 1 to 10 of about 48,270 (261)
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
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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
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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
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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
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, 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.
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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
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 Relation Between Strength of Ground Improvement and P-Wave Velocity when Using the Jumbo-Jet Special Grouting Method [PDF]
, 2006 Shield construction works are the most popular method employed at the Taiwan Mass Rapid Transit project and underground sewage projects. Joining of the shaft and the tunnel is generally high-risk work because of potential dangers, such as ground collapse
Ko. Wu-Te +2 more
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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
Soil conditioning for EPB shield tunnelling
KSCE Journal of Civil Engineering, 2014 The use of conditioning agents that change the mechanical and hydraulic behavior of a cohesionless soil into an impervious and plastic paste is the key point for the correct management of EPB (Earth Pressure Balance) shield tunneling. The design of soil conditioning sets and the choice of the best products to be used require special laboratory tests ...
openaire +3 more sources