Results 11 to 20 of about 328,347 (250)
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 ...
Kun Zhang +4 more
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Structural Dynamic Response of a Shield Tunnel under Aircraft Taxiing Load
Shock and Vibration, 2021 Dynamic load is an important factor affecting the safety and stability of subway tunnel structures. To obtain the variation law of shield tunnel structure dynamic response under aircraft taxiing load, a three-dimensional numerical simulation of such ...
Zhanyou Luo +4 more
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Journal of Asian Architecture and Building EngineeringUnder the condition of the shield tunnel intersecting the ground fissure section at a right angle, a physical model test was conducted at a geometric scale ratio of 1:30.
Tao Yin, Sanqing Su, Zhen Cao
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Advances in Civil Engineering, 2020 Due to the increasingly expanding of urban rail transit, shield tunnelling adjacent to existing tunnels has become more and more common in cities. Construction of new tunnels will pose great risks to the safety of existing tunnels.
Junru Zhang +5 more
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Additional Stress of Soil and Surface Settlement during Tunnel Shield Construction
Buildings, 2023 To study the influence of shield excavation on the surrounding soil, and to control the influence of the shield excavation of the subway tunnel on the surface settlement and the deformation of the surrounding buildings, it is necessary to study the ...
Ying Li +4 more
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Underground SpaceTo solve the problem that current attitude planning methods do not fully consider the interaction and constraints among the shield, segmental tunnel ring, and geology, and cannot adapt to the changes in the actual engineering environment, or provide ...
Min Hu +3 more
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Yantu gongcheng xuebao, 2023 In view of the inconsistency of efficiencies of transverse and longitudinal rigidities of shield tunnels, it is difficult to design a shield tunnel model with similar transverse and longitudinal rigidities in model tests.
HUANG Dawei 1, 2, 3, XU Changjie 1, 2, 3, LUO Wenjun 1, 2, 3, JIANG Hao 1, 2, 3, HU Guanjing 4, ZHAN Tao 5
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Repairing a shield tunnel damaged by secondary grouting. [PDF]
, 2018 This paper reports on a repair work which has recently been conducted for a metro tunnel in Hefei city, China. The tunnel has been originally constructed using shield method where synchronous grouting was used to fill the gaps between the tunnel segments
Jin-long, Liu +3 more
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Low-resistance spin-dependent tunnel junctions with HfAlOx barriers for high-density recording-head application [PDF]
, 2002 Spin-dependent tunnel junctions with the structure (Ta 70 /spl Aring//NiFe 70 /spl Aring//MnIr 80 /spl Aring//CoFe 35 /spl Aring//HfAlO/sub x//CoFe 35 /spl Aring//NiFe 40 /spl Aring//TiW(N) 150 /spl Aring/) were fabricated on top of 600-/spl Aring/-thick
Snoeck, E. +4 more
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Influence of the Tunnel Shape on Shotcrete Lining Stresses [PDF]
, 2011 Tunnel excavation is frequently carried out in rock masses by the drill and blast method and the final shape of the tunnel boundary can be irregular due to overbreaks.
Fabrizio Barpi +3 more
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