Results 1 to 10 of about 128 (100)
Deep Underground Science and EngineeringOne of the significant challenges faced in shield tunnel construction is the risk of collapse resulting from abrupt changes in soil conditions in advance of the working face, particularly within the sandy cobble stratum.
Xiaoyan Zhang
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Frontiers in Earth Science, 2023 The sandy cobble stratum presents a high risk for underground tunnel construction due to its low cohesive properties and susceptibility to loosening and falling. The use of Advanced ductule for grouting reinforcement inevitably results in vibrations, and
Shengjun Shao
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Underground Space (China), 2023 This paper focuses on the prediction of ground surface settlement induced by shield tunnelling in sandy cobble stratum. Based on the stochastic medium theory, an analytical solution to predict the surface settlement is developed considering the ...
Fan Wang
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Prediction of subsurface settlement induced by shield tunnelling in sandy cobble stratum
Journal of Rock Mechanics and Geotechnical EngineeringThis study focuses on the analytical prediction of subsurface settlement induced by shield tunnelling in sandy cobble stratum considering the volumetric deformation modes of the soil above the tunnel crown.
Fan Wang
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Muck Problems in Subway Shield Tunneling in Sandy Cobble Stratum [PDF]
Polish Maritime Research, 2016 Experiments aiming at the muck improvement for Chengdu’s subway shield tunneling in water-rich sandy cobble ground initially finds out the kinds and ratio of muck improver suitable for the this strata, and through the field application determines the ...
Cui Kai, Lin Weikang
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Study on Mechanical Characteristics of Tunnel Support System in Sandy Cobble Stratum [PDF]
American Journal of Civil Engineering, 2017 Because the sand gravel stratum with loose structure, good gradation, easy disturbance, poor stability, deformation and other characteristics of long duration, large deformation and collapse failure phenomenon is extremely easy to cause in the tunnel construction, leading to a primary support structure for strong deformation or even destruction ...
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KSCE Journal of Civil Engineering, 2021 As a long-term urban transportation infrastructure, the stability of metro construction is very important. With the continuous expansion of urban metro network, metro adjacent construction is more and more frequently encountered. In this paper, taking the double-line adjacent construction problems encountered during excavation of Beijing New Airport ...
Xianjie Hao +2 more
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Advances in Civil Engineering, 2019 The Lanzhou Yellow River Tunnel is the first metro shield tunnel that undercrosses the Yellow River in China. It was completed after successfully overcoming several construction challenges, including strata with a high proportion of large-sized sandy ...
Fei Ye +5 more
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Study on Landslide Mechanism and Treatment Technology in Tunnel of Sandy Cobble Stratum [PDF]
American Journal of Civil Engineering, 2017 The steady ability of sandy pebble stratum is poor, during the tunnel construction, landslides occur frequently. In order to clarify the mechanism of landslide in sand gravel tunnel and put forward effective treatment technology, the paper takes the Gongboxia tunnel, which located in Qinghai Province, as the engineering background.
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Underground SpaceGround movements due to tunneling are becoming increasingly critical as buildings are located around construction sites. This study proposes a new combined reinforcement method using a foundation grouting oblique pipe roof.
Xue Li, Aopeng Geng
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