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Drive system design and error analysis of the 6 degrees of freedom segment erector of shield tunneling

Hu SHI, Guofang GONG, Huayong YANG

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 3,   Pages 369-376 doi: 10.1007/s11465-011-0223-1

Abstract:

Focusing on a segment erector of a shield-tunneling machine developed with 6 degrees of freedom (DOF) and controlled by electro-hydraulic proportional systems, the kinematics of the segment erection processFormulas for calculating the position and attitude error of the grip hand of the segment erector areerror analysis, providing a foundation for practical designing, manufacturing, and assembling of the segment

Keywords： shield tunneling machine     segment erector     kinematics     position and attitude precision    

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Overall process design of herringbone steel pylon

Ji Lin,Zhang Yongli

Strategic Study of CAE 2010, Volume 12, Issue 4,   Pages 43-47

Abstract: Through targeted analysis in the steel-concrete composite section, the integral segment, the lower linksegment and different structural forms of the steel tower, we propose different manufacturing programs

Keywords： plate element     block     segment     steel tower     technology design    

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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.little effect on the cracking load but significantly influenced the failure and ultimate loads of the segmentIt is suggested that in the reinforcement design of the subway segment, the reinforcement ratio and theto effectively use the reinforcement and exert the design strength, thereby improving the bearing capacityof the segment.

Keywords： shield tunnel     bearing capacity     failure mechanism     segment reinforcement    

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Systematic engineering method for FY-3 satellite ground segment engineering

Dong Chaohua,Yang Zhongdong,Shi Jinming,Zhang Peng

Strategic Study of CAE 2013, Volume 15, Issue 10,   Pages 24-32

Abstract:

For application purpose, this paper gave an introduction on designing FY-3 function, planning the FY-3 satellite and the ground engineering system requirement as a whole with the systematic engineering method, reasonably locating the receiving stations, and scientifically allocating the task for each functional unit of the ground system, so that the ground application system was built with realization of optimized overall function and effectiveness.

Keywords： FY-3 satellite     instrument capability     ground segment system     systematic engineering     over all design    

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Manufacturing technique and performance of functionally graded concrete segment in shield tunnel

Baoguo MA, Dinghua ZOU, Li XU

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 1,   Pages 101-104 doi: 10.1007/s11709-009-0011-8

Abstract: The quality of segment is very important to the service life of shield tunnel.Wuhan Yangtze River Shield Tunnel, the principle of functionally graded materials was introduced to designand produce the functionally graded concrete segment (FGCS).

Keywords： shield tunnel     functionally graded concrete segment (FGCS)     manufacturing technology     performance    

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Beijing underground diameter wire（The Third Railway Survey and Design Institute，Tianjin 300252,China）

Suo Xiaoming,Zhang Jiqing,Yang Yiqiu

Strategic Study of CAE 2010, Volume 12, Issue 12,   Pages 11-17

Abstract: article emphased on the selection of shield tunnel machine, the structural calculation of the lining, the segmentlining design and the water resistant technology, also demonstrated the designing requirements of the

Keywords： railway tunnel     shield of large diameter     segment design    

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A redundantly actuated PRPRP radial mechanism in the segment erector of a shield machine for synchronization

Wanghui BU, Zhenyu LIU, Jianrong TAN, Jin CHENG

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 4,   Pages 463-467 doi: 10.1007/s11465-011-0225-z

Abstract:

The shield machine is a heavy construction machine for tunnel excavation, and the segment erectorHence, this paper proposes a redundantly actuated PRPRP radial mechanism for the segment erector.

Keywords： redundant actuation     parallel mechanisms     five-bar mechanisms     segment erectors     shield machines    

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The influence of hand hole on the ultimate strength and crack pattern of shield tunnel segment joints

Shaochun WANG, Xi JIANG, Yun BAI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 5,   Pages 1200-1213 doi: 10.1007/s11709-019-0546-2

Abstract: The hand hole acts as a weak point and initial damage in the segment joint especially when the circumferentialMoreover, segment joints with MSSF are also tested to evaluate the effects of MSSF on the failure modeand structural performance of the segment joints.A \ /-type crack pattern is always observed before the final failure of the segment joints.The segment joint with MSSF shows higher ultimate bearing capacity and toughness compared to segment

Keywords： shield tunneling     structural synthetic fiber concrete     hand hole     segment joint     ultimate bearing capacity    

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Calculation of prestressed anchor segment by 3D infinite element

Yanfen WANG, Hongyang XIE, Yuanhan WANG

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 1,   Pages 63-66 doi: 10.1007/s11709-009-0006-5

Abstract: coupled with 8-node finite elements to compute the compressive deformation of the prestressed anchor segmentThe results indicate that when the prestressed force acts on the anchor segment, the stresses and displacementsin the rock around the anchor segment are concentrated in the zone center with the anchor axis and are

Keywords： infinite element     prestressed anchor     couple     finite element    

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Shield Driven Tunneling in the Complex Layer：Direction Control of Shield and Preventing Segment Crack

Tan Zhongsheng,Hong Kairong,Wan Jianglin,Wang Mengshu

Strategic Study of CAE 2006, Volume 8, Issue 12,   Pages 92-96

Abstract: Furthermore, it is also difficult to prevent segment crack and local failure and dislocation of segmentThe main cause of segment crack and local failure of segment, were also studied with numerical simulation, and methods to control segment crack were brought forward.

Keywords： mixed ground     tunnel     attitude control     segment crack     segment dislocation    

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Sensory innervation of the anterior eye segment in rats: a retrograde tracing study

Haixia LIU MD , Zhiwang LI MD , Min YANG MD , Xiang TIAN MS , Chaoying LI PhD , Lei PEI PhD ,

Frontiers of Medicine 2009, Volume 3, Issue 3,   Pages 352-356 doi: 10.1007/s11684-009-0065-y

Abstract: This study aimed to investigate the sensory innervation of the anterior eye segment in rats by retrogradeIn our study, the sensory innervation of distinct elements of the anterior segment of the rat’s

Keywords： trigeminal ganglion     retrograde tracing    

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Assembling and defect treatment of large-diameter shield segment

Cheng Xuewu,Xu Weiqing,Yang Zhiyong

Strategic Study of CAE 2010, Volume 12, Issue 12,   Pages 89-93

Abstract:

In the paper, the segment assembling techniques of large-diameter shieldand the apparent damage reasons and repair technology of large-diameter shield reinforced concrete segmentbelow hance, respectively, assuring the good strength and surface quality of large-diameter shield segment

Keywords： large-diameter shield     segment     assembling     repair    

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Study on anti crack design method for laminating crack at bottom slab in closure segment

Lin Haifeng,Zhang Dongdong and Zhao Qilin

Strategic Study of CAE 2012, Volume 14, Issue 5,   Pages 106-112

Abstract: the phenomenon of laminating crack while tensioning the pre-stressed cables at bottom slab in closure segmentindicates from theory that the failure criteria under biaxial stress is more applicable to anti-crack designthan the maximum tensile stress criterion for closure segment of box girder bridges.established and the transverse and vertical stress between pre-stressed tendons at bottom slab in closure segmentThe conclusions can be regarded as reference for the anti-crack design of similar bridges.

Keywords： bridge engineering     bottom slab     finite element method     failure criterion     biaxial stress    

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Design scheme and implementation for HY-2 ground segment mission control

Lan Youguo,Lin Mingsen,Xie Chunhua

Strategic Study of CAE 2014, Volume 16, Issue 6,   Pages 13-20

Abstract:

Design scheme and implementation for HY-2 ground segment is introducedMission control subsystem is responsible for task scheduling，and system monitor，is nerve center of ground segment

Keywords： HY-2 ground segmentapplication system     architecture     layered scheduling system     operational model    

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dislocation of the North-Tehran fault: The effects of geologic layering and slip distribution for the segment

Pooya ZAKIAN; Hossein ASADI HAYEH

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 4,   Pages 533-549 doi: 10.1007/s11709-022-0802-8

Abstract: study uses the finite element method for simulating the crustal deformation due to the dislocation of a segmentIn this regard, a geological map of Karaj that includes the fault segment is utilized in order to createboth the capability and usefulness of the proposed models in the dislocation analysis for the Karaj segment

Keywords： finite element method     fault dislocation     slip distribution     the North-Tehran fault     heterogeneity     geological layering    

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Title Author Date Type Operation

Drive system design and error analysis of the 6 degrees of freedom segment erector of shield tunneling

Hu SHI, Guofang GONG, Huayong YANG

Journal Article

Overall process design of herringbone steel pylon

Ji Lin,Zhang Yongli

Journal Article

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

Journal Article

Systematic engineering method for FY-3 satellite ground segment engineering

Dong Chaohua,Yang Zhongdong,Shi Jinming,Zhang Peng

Journal Article

Manufacturing technique and performance of functionally graded concrete segment in shield tunnel

Baoguo MA, Dinghua ZOU, Li XU

Journal Article

Beijing underground diameter wire（The Third Railway Survey and Design Institute，Tianjin 300252,China）

Suo Xiaoming,Zhang Jiqing,Yang Yiqiu

Journal Article

A redundantly actuated PRPRP radial mechanism in the segment erector of a shield machine for synchronization

Wanghui BU, Zhenyu LIU, Jianrong TAN, Jin CHENG

Journal Article

The influence of hand hole on the ultimate strength and crack pattern of shield tunnel segment joints

Shaochun WANG, Xi JIANG, Yun BAI

Journal Article

Calculation of prestressed anchor segment by 3D infinite element

Yanfen WANG, Hongyang XIE, Yuanhan WANG

Journal Article

Shield Driven Tunneling in the Complex Layer：Direction Control of Shield and Preventing Segment Crack

Tan Zhongsheng,Hong Kairong,Wan Jianglin,Wang Mengshu

Journal Article

Sensory innervation of the anterior eye segment in rats: a retrograde tracing study

Haixia LIU MD , Zhiwang LI MD , Min YANG MD , Xiang TIAN MS , Chaoying LI PhD , Lei PEI PhD ,

Journal Article

Assembling and defect treatment of large-diameter shield segment

Cheng Xuewu,Xu Weiqing,Yang Zhiyong

Journal Article

Study on anti crack design method for laminating crack at bottom slab in closure segment

Lin Haifeng,Zhang Dongdong and Zhao Qilin

Journal Article

Design scheme and implementation for HY-2 ground segment mission control

Lan Youguo,Lin Mingsen,Xie Chunhua

Journal Article

dislocation of the North-Tehran fault: The effects of geologic layering and slip distribution for the segment

Pooya ZAKIAN; Hossein ASADI HAYEH

Journal Article