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Field and laboratory experimental studies on hard-rock tunnel excavation based on disc cutter coupled

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 9,   Pages 1370-1386 doi: 10.1007/s11709-023-0947-0

Abstract: The tunnel boring machine (TBM) is typically used in hard-rock tunnel excavation.Owing to the unsatisfactory adaptability of TBM to the surrounding rock, when crossing high-strengthnozzle diameter, and nozzle speed on cutting are investigated via laboratory experiments of cutting hardrock using high-pressure waterjets.during the operation of high-pressure waterjets, the ambient temperature and waterjet temperature in the tunnel

Keywords： tunnel boring machine     hard-rock cutting     free face     disc cutter     rock-cutting efficiency    

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Hard-rock tunnel lithology identification using multi-scale dilated convolutional attention network basedon tunnel face images

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 12,   Pages 1796-1812 doi: 10.1007/s11709-023-0002-1

Abstract: For real-time classification of rock-masses in hard-rock tunnels, quick determination of the rock lithologyon the tunnel face during construction is essential.lithology based on tunnel face images was developed., this study demonstrates the potential of using artificial intelligence methods for in situ rocklithology classification utilizing geological images of the tunnel face.

Keywords： hard-rock tunnel face     intelligent lithology identification     multi-scale dilated convolutional attention    

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Technical innovation in the “Beishan No. 1” hard rock tunnel boring machine for high-gradient spiral

Frontiers of Engineering Management 2024, Volume 11, Issue 1,   Pages 175-179 doi: 10.1007/s42524-023-0288-7

Abstract: Technical innovation in the “Beishan No. 1” hard rock tunnel boring machine for high-gradient spiral

Keywords： tunnel boring machine     extremely hard rock     continuous small-radius curves     high gradient     equipment    

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Real-time prediction of tunnel face conditions using XGBoost Random Forest algorithm

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 12,   Pages 1777-1795 doi: 10.1007/s11709-023-0044-4

Abstract: Real-time perception of rock conditions based on continuously collected data to meet the requirementsof continuous Tunnel Boring Machine (TBM) construction presents a critical challenge that warrants increasedTo achieve this goal, this paper establishes real-time prediction models for fractured and weak rockof the TBM loading phase is short, usually within a few minutes after the disc cutter contacts the tunnelface.

Keywords： Tunnel Boring Machine     fractured and weak rock mass     machine learning model     real-time early warming     tunnel face rock condition    

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Realtime prediction of hard rock TBM advance rate using temporal convolutional network (TCN) with tunnel

Zaobao LIU; Yongchen WANG; Long LI; Xingli FANG; Junze WANG

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 4,   Pages 401-413 doi: 10.1007/s11709-022-0823-3

Abstract: Real-time dynamic adjustment of the tunnel bore machine (TBM) advance rate according to the rock-machinedatabase, containing 235 data sets, established from the construction data from the Jilin Water-Diversion TunnelThe work provides a new concept of real-time prediction of the TBM performance for highly efficient tunnel

Keywords： hard rock tunnel     tunnel bore machine advance rate prediction     temporal convolutional networks     soft    

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Working Procedure of Developing a New Deep Hard-rock Burst-prone Deposit

Guo Ran,Yu Runcang

Strategic Study of CAE 2002, Volume 4, Issue 7,   Pages 51-55

Abstract: In this paper, the authors create a general working procedure to develop a new hard-rock burst-proneinto 6 steps： initial determination of burst tendency; study of the proneness to rockburst of typical rocksamples ;in-situ rock stress measurement; possibility of strain burst in the mine; principles in theThe above study results lays a theoretical foundation for applied research of deep hard-rock burst-prone

Keywords： rockburst     mining technique     working procedure    

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Frontiers in Personless Mining and Avenues of Their Advancement in China

Li Zhongxue,Li Cuiping,Liu Shuangyue

Strategic Study of CAE 2007, Volume 9, Issue 11,   Pages 16-20

Abstract:

With the rapid social and economic development in China,  technology innovations in the extraction and utilization of mineral resources are demanded to address the problems associated with larger mining depth and other adverse conditions confronted by the mining industries,  increase the efficiency of extracting mineral resources,  and safeguard the safety and health of mining workers.  To this end,  the Chinese Ministry of Science and Technology (MOST) has launched a series of research directions through the 863 Program aimed at frontiers in the subject of personless mining to enhance technology innovations in personless mining and provide the mining industries with a fresh perspective to personless mining.  In response to the MOST initiative,  this paper presents a brief review on the development of automated mining technologies in the industrialized nations such as Canada,  Australia,  Finland and Sweden,  outlines the major technological issues on the frontiers of automated mining,  and proposes some avenues of advancing technology innovations in automated mining in China.

Keywords： hard-rock mining     automated mining     personless mining     personless mine    

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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 atOwing to the high risk of face failure, the necessity of support pressure when cutterhead support isDisregarding 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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Crack evolution of soft–hard composite layered rock-like specimens with two fissures under uniaxial compression

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1372-1389 doi: 10.1007/s11709-021-0772-2

Abstract: correlation were used to study the spatiotemporal evolution characteristics of crack extension of soft and hardcomposite laminated rock masses (SHCLRM) containing double fissures under uniaxial compression.The effects of different rock combination methods and prefabricated fissures with different orientationsHard layers predominantly produce tensile cracks; soft layers produce shear cracks.The first crack always sprouts at the tip or middle of prefabricated fractures in hard layers.

Keywords： soft−hard composite layered rock mass     double cracks     crack evolution     acoustic emission     digital image    

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Experimental study of face passive failure features of a shallow shield tunnel in coastal backfill sand

Frontiers of Structural and Civil Engineering 2024, Volume 18, Issue 2,   Pages 252-271 doi: 10.1007/s11709-024-1059-1

Abstract: Face passive failure can severely damage existing structures and underground utilities during shallow

Keywords： tunnel face stability     passive failure     model test     support pressure     failure mode    

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The Practice of Forward Prospecting of Adverse Geology Applied to Hard Rock TBM Tunnel Construction: Article

Shucai Li, Lichao Nie, Bin Liu

Engineering 2018, Volume 4, Issue 1,   Pages 131-137 doi: 10.1016/j.eng.2017.12.010

Abstract:

An increasing number of tunnels are being constructed with tunnel-boring machines (TBMs) due to theHowever, when a TBM encounters adverse geological conditions in the course of tunnel construction (e.gTherefore, the advance detection of adverse geology and water-bearing conditions in front of the tunnelface is of great importance.face.

Keywords： Hard rock TBM tunnels     Comprehensive forward prospecting     Geological analysis     3D induced polarization     3D    

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Shaking table test on a tunnel-group metro station in rock site under harmonic excitation

Frontiers of Structural and Civil Engineering 2024, Volume 18, Issue 9,   Pages 1362-1377 doi: 10.1007/s11709-024-1089-8

Abstract: A tunnel-group metro station built in rock site is composed of a group of tunnels.This study investigates the dynamic responses of such a metro station in a rock site, by shaking tableThe lining structures of each tunnel and surrounding rock are modeled based on the similitude law; foam

Keywords： metro station     tunnel-group     shaking table test     harmonic excitation     dynamic response    

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Clogging of slurry-shield tunnel-boring machine drives in sedimentary soft rock: A case study

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 10,   Pages 1502-1516 doi: 10.1007/s11709-023-0984-8

Abstract: This paper presents a case study of the clogging of a slurry-shield tunnel-boring machine (TBM) experiencedduring tunnel operations in clay-rich argillaceous siltstones under the Ganjiang River, China.The potential for clogging during tunnel operations in argillaceous siltstone was estimated using anand slurry properties, mixed support integrating slurry, and compressed air to support the excavation face

Keywords： slurry-shield TBM     geological investigation     clogging     argillaceous siltstone     TBM performance     mitigation measures    

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A Closer Look at the Design of Cutterheads for Hard Rock Tunnel-Boring Machines

Jamal Rostami, Soo-Ho Chang

Engineering 2017, Volume 3, Issue 6,   Pages 892-904 doi: 10.1016/j.eng.2017.12.009

Abstract:

The success of a tunnel-boring machine (TBM) in a given project depends on the functionality of allmain bearing/gearbox, and the effectiveness of the mucking along with its effects on the wear of the faceproprietary algorithms by the manufacturers, and despite recent attention on the subject, the design of rock

Keywords： TBM cutterhead design     Cutterhead layout     Disk cutters     Cutting pattern     TBM efficiency    

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The shear strength of the interface between artificial rock and printed concrete at super-early ages

Frontiers of Structural and Civil Engineering 2024, Volume 18, Issue 1,   Pages 51-65 doi: 10.1007/s11709-024-1012-3

Abstract: concrete printing has the potential to replace shotcrete for construction of linings of tunnels in hardrock.The shear strength of the interface between rock and printed concrete is vital, especially at super-earlymatrix composition, the age of the printed matrices, and the interface roughness of the artificial rock

Keywords： rock tunnel     printed concrete     interface     fast bond shear test     shear strength    

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Title Author Date Type Operation

Field and laboratory experimental studies on hard-rock tunnel excavation based on disc cutter coupled

Journal Article

Hard-rock tunnel lithology identification using multi-scale dilated convolutional attention network basedon tunnel face images

Journal Article

Technical innovation in the “Beishan No. 1” hard rock tunnel boring machine for high-gradient spiral

Journal Article

Real-time prediction of tunnel face conditions using XGBoost Random Forest algorithm

Journal Article

Realtime prediction of hard rock TBM advance rate using temporal convolutional network (TCN) with tunnel

Zaobao LIU; Yongchen WANG; Long LI; Xingli FANG; Junze WANG

Journal Article

Working Procedure of Developing a New Deep Hard-rock Burst-prone Deposit

Guo Ran,Yu Runcang

Journal Article

Frontiers in Personless Mining and Avenues of Their Advancement in China

Li Zhongxue,Li Cuiping,Liu Shuangyue

Journal Article

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

Journal Article

Crack evolution of soft–hard composite layered rock-like specimens with two fissures under uniaxial compression

Journal Article

Experimental study of face passive failure features of a shallow shield tunnel in coastal backfill sand

Journal Article

The Practice of Forward Prospecting of Adverse Geology Applied to Hard Rock TBM Tunnel Construction:

Shucai Li, Lichao Nie, Bin Liu

Journal Article

Shaking table test on a tunnel-group metro station in rock site under harmonic excitation

Journal Article

Clogging of slurry-shield tunnel-boring machine drives in sedimentary soft rock: A case study

Journal Article

A Closer Look at the Design of Cutterheads for Hard Rock Tunnel-Boring Machines

Jamal Rostami, Soo-Ho Chang

Journal Article

The shear strength of the interface between artificial rock and printed concrete at super-early ages

Journal Article