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Research on Demarcating Method for Deep Tunnel and Shallow Tunnel in Soil

Zhao Zhanchang,Xie Yongli

Strategic Study of CAE 2005, Volume 7, Issue 10,   Pages 84-86

Abstract:

Directed against the demarcating problems of deep tunnel and shallow tunnel in exiting methods, thefeasible by two engineering cases, and is of importantce to lining design and construction of soil tunnel

Keywords： soil tunnel     deep tunnel and shallow tunnel     demarcating method    

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Fast detection algorithm for cracks on tunnel linings based on deep semantic segmentation

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 5,   Pages 732-744 doi: 10.1007/s11709-023-0965-y

Abstract: An algorithm based on deep semantic segmentation called LC-DeepLab is proposed for detecting the trendsand geometries of cracks on tunnel linings at the pixel level.The proposed method addresses the low accuracy of tunnel crack segmentation and the slow detection speedNext, an efficient shallow feature fusion module that extracts crack features across pixels is designedThe experimental results show that LC-DeepLab can accurately segment and highlight cracks from tunnel

Keywords： tunnel engineering     crack segmentation     fast detection     DeepLabv3+     feature fusion     attention mechanism    

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Centrifuge experiments for shallow tunnels at active reverse fault intersection

Mehdi SABAGH, Abbas GHALANDARZADEH

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 3,   Pages 731-745 doi: 10.1007/s11709-020-0614-7

Abstract: Assessing the interaction of soil and tunnel at an intersection with an active fault during an earthquakecan be a beneficial guideline for tunnel design engineers.tunnels are vulnerable to reverse fault rupture and but the functionality loss is not abrupt, and the tunnel

Keywords： reverse fault rupture     continuous tunnel     geotechnical centrifuge     ground surface deformations     fragility    

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Study on support mechanical behaviour and scheme for shallow buried tunnel in weak wall rock with rich

Wan Fei,Tan Zhongsheng,Yang Sensen,Ma Dong

Strategic Study of CAE 2014, Volume 16, Issue 8,   Pages 45-53

Abstract:

Shallow buried section under river valley of Guan Jiao tunnel has donea series of research on support mechanical behaviour and scheme for tunnel in weak wall rock with richThese research results can provide theoretical basis and underlying date for support scheme for Shallowburied tunnel under river valley, and have high referential value for design and construction decision-making

Keywords： Tunnel project     Shallow buried under river valley     Weak wall rock     Support scheme     Field monitoring    

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Analysis of mechanical behaviors of big pipe-roof for shallow buried large-span tunnel

Li Jian,Tan Zhongsheng,Yu Yu,Ni Lusu

Strategic Study of CAE 2011, Volume 13, Issue 9,   Pages 92-96

Abstract:

A series of research on mechanical behaviors of big pipe-roof in shallowlarge-span loess tunnel was made on Wenxiang Tunnel in Zhengzhou-Xi'an Special Passenger RailwayThe force-deformation law of big pipe roof in loess tunnel was obtained: in front of the excavating face

Keywords： shallow burying mining     undercrossing construction     loess tunnel     pipe-roof     deformation monitoring    

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Deep convolutional neural network for multi-level non-invasive tunnel lining assessment

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 2,   Pages 214-223 doi: 10.1007/s11709-021-0800-2

Abstract: and implemented on the basis of periodic structural monitoring oriented to a cost- and time-efficient tunnel

Keywords： concrete structure     GPR     damage classification     convolutional neural network     transfer learning    

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Key construction technology of shallow-buried large span highway tunnel through rich water soft soil

Zhao Licai

Strategic Study of CAE 2015, Volume 17, Issue 1,   Pages 81-87

Abstract:

This article takes Xia-Zhang highway (Xiamen section) Dongfu tunnel construction as an example.reinforcement technology+cross-located right next door after disassembly type excavation technology in shallow-buriedrich water soft soil stratum tunnel excavation process.processing， make the deformation of surrounding rock control， successfully passed the construction of shallow-buried

Keywords： shallow buried； rich water soft soil； tunnel； pipe； reinforcement； cross-located right next door after    

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Construction optimization of shallow-buried tunnel in gravel strata based on controlling settlement of

Yu Jun,Liu Songyu and Gong Xiaonan

Strategic Study of CAE 2013, Volume 15, Issue 10,   Pages 97-102

Abstract: stability of surrounding rock is closely connected with the settlement of the crown during construction of shallow-buriedroad tunnel in gravel strata.The result showed that the crown settlement easily took place during excavation of shallow tunnel andIt is found that CRD method is the most appropriate for gravel strata tunnel because the crown settlement

Keywords： gravel     surrounding rock of tunnel     numerical analysis     construction optimization     crown settlement    

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Asymmetric deformation mechanism in deep soft rock tunnel and controlling countermeasures in Datun Mine

Fu Qingguo and Zou Chaoyang

Strategic Study of CAE 2011, Volume 13, Issue 11,   Pages 102-106

Abstract:

According to the investigation and analysis of the engineering geology in Kongzhuang Mine and the laboratory experiments of rock mechanics, we use three-dimensional numerical simulation to study the distribution of ground displacement field in surrounding rocks when the roadway shows the asymmetric deformation characteristics of surrounding rock significantly, analysis stress distribution law when the roadway promotes to the inferior of the upper face. The results of theoretical study show that the asymmetric deformation is controlled by centralized stress from coal pillar in upper goaf. This research provides a preliminary theoretical basis for the controlling countermeasures of asymmetric deformation characteristics of surrounding rock in Kongzhuang Mine.

Keywords： deep     soft rock tunnel     asymmetric deformation     controlling countermeasures    

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Field measurement and analysis of asymmetric shallow buried twin tunnels with ultra small spacing

Wang Yunlong,Tan Zhongsheng,Chen Ying

Strategic Study of CAE 2012, Volume 14, Issue 11,   Pages 24-28

Abstract:

The ultra-small spacing tunnel of Jiaozhou Bay seabed tunnel in QingdaoResults show that the surrounding rock pressure and support force of the after-excavation tunnel arelarger than others of the tunnel.different from the theoretical predictions and experimental results of most of the small spacing symmetry tunnelThe monitoring results show that the stability of the after-construction tunnel has been effectively

Keywords： tunnel     ultra-small spacing     asymmetric     shallow-buried     field measurement    

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Three-dimensional finite difference analysis of shallow sprayed concrete tunnels crossing a reverse fault

Masoud RANJBARNIA, Milad ZAHERI, Daniel DIAS

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 4,   Pages 998-1011 doi: 10.1007/s11709-020-0621-8

Abstract: In this paper, the effects of a reverse and a normal fault movement on a transversely crossing shallowshotcreted tunnel are investigated by 3D finite difference analysis.various parameters such as the sprayed concrete thickness, the geo-mechanical properties of soil, the tunneldepth, and the fault plane dip angle are studied on the displacements of the ground surface and the tunnelstructure, and on the plastic strains of the soil mass around tunnel.

Keywords： urban tunnel     sprayed concrete     reverse fault     normal fault     finite difference analysis    

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Research on shallow tunneling construction method of large section tunnel under the water-rich sandy

Tang Guorong,Liu Zhaowei,Li Jianhua

Strategic Study of CAE 2010, Volume 12, Issue 12,   Pages 98-102

Abstract: text-align: justify;">The CRD(cross diaphragm) and hole pile method were adopted in the large section tunnel

Keywords： sandy gravel stratum     large section     CRD method     hole pile     tunnel construction    

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Effect of cutterhead configuration on tunnel face stability during shield machine maintenance outages

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 4,   Pages 522-532 doi: 10.1007/s11709-023-0930-9

Abstract: Engineering safety during maintenance outages is determined by the stability of the tunnel face.The tunnel face is supported by a medium at the bottom of the excavation chamber and compressed air atDisregarding the supporting effect of the cutterhead will result in a tunnel face with underestimated

Keywords： tunnel face stability     cutterhead configuration     aperture ratio     pressure gradient     support ratio    

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Bending failure performance of a shield tunnel segment based on full-scale test and numerical analysis

Frontiers of Structural and Civil Engineering   Pages 1033-1046 doi: 10.1007/s11709-023-0973-y

Abstract: This study focuses on the bending failure performance of a shield tunnel segment.

Keywords： shield tunnel     bearing capacity     failure mechanism     segment reinforcement    

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Discontinuous mechanical behaviors of existing shield tunnel with stiffness reduction at longitudinal

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 1,   Pages 37-52 doi: 10.1007/s11709-022-0920-3

Abstract: analytical model is proposed to estimate the discontinuous mechanical behavior of an existing shield tunnelabove a new tunnel.The existing shield tunnel is regarded as a Timoshenko beam with longitudinal joints.Timoshenko beam GA, and different additional pressure profiles on the responses of the shield tunnel

Keywords： tunnel–soil interaction     discontinuous analysis     longitudinal joints     existing shield tunnel     Timoshenko    

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Title Author Date Type Operation

Research on Demarcating Method for Deep Tunnel and Shallow Tunnel in Soil

Zhao Zhanchang,Xie Yongli

Journal Article

Fast detection algorithm for cracks on tunnel linings based on deep semantic segmentation

Journal Article

Centrifuge experiments for shallow tunnels at active reverse fault intersection

Mehdi SABAGH, Abbas GHALANDARZADEH

Journal Article

Study on support mechanical behaviour and scheme for shallow buried tunnel in weak wall rock with rich

Wan Fei,Tan Zhongsheng,Yang Sensen,Ma Dong

Journal Article

Analysis of mechanical behaviors of big pipe-roof for shallow buried large-span tunnel

Li Jian,Tan Zhongsheng,Yu Yu,Ni Lusu

Journal Article

Deep convolutional neural network for multi-level non-invasive tunnel lining assessment

Journal Article

Key construction technology of shallow-buried large span highway tunnel through rich water soft soil

Zhao Licai

Journal Article

Construction optimization of shallow-buried tunnel in gravel strata based on controlling settlement of

Yu Jun,Liu Songyu and Gong Xiaonan

Journal Article

Asymmetric deformation mechanism in deep soft rock tunnel and controlling countermeasures in Datun Mine

Fu Qingguo and Zou Chaoyang

Journal Article

Field measurement and analysis of asymmetric shallow buried twin tunnels with ultra small spacing

Wang Yunlong,Tan Zhongsheng,Chen Ying

Journal Article

Three-dimensional finite difference analysis of shallow sprayed concrete tunnels crossing a reverse fault

Masoud RANJBARNIA, Milad ZAHERI, Daniel DIAS

Journal Article

Research on shallow tunneling construction method of large section tunnel under the water-rich sandy

Tang Guorong,Liu Zhaowei,Li Jianhua

Journal Article

Effect of cutterhead configuration on tunnel face stability during shield machine maintenance outages

Journal Article

Bending failure performance of a shield tunnel segment based on full-scale test and numerical analysis

Journal Article

Discontinuous mechanical behaviors of existing shield tunnel with stiffness reduction at longitudinal

Journal Article