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1996 Fiscal Year Final Research Report Summary

DEVELOPMENT OF DESIGN PROCEDURES FOR SUBMERGED FLOATING TUNNELS

Research Project

Project/Area Number 06555128
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section試験
Research Field 構造工学・地震工学
Research InstitutionHOKKAIDO UNIVERSITY

Principal Investigator

KAKUTA Yoshio  Hokkaido Univ., Fac.of Eng., Prof., 工学部, 教授 (60001210)

Co-Investigator(Kenkyū-buntansha) YOSHIMURA Jin  Kushiro National College of Technology, President, 校長 (20001133)
MIKAMI Takashi  Hokkaido Univ., Fac.of Eng., Prof., 工学部, 教授 (00002303)
SAEKI Noboru  Hokkaido Univ., Fac.of Eng., Prof., 工学部, 教授 (80002004)
SAEKI Hiroshi  Hokkaido Univ., Fac.of Eng., Prof., 工学部, 教授 (30001209)
Project Period (FY) 1994 – 1996
Keywordssubmerged floating tunnel / tension leg / dynamic behavior / nonlinear analysis / hydrodynamic force
Research Abstract

A submerged floating tunnel (SFT) is a kind of submersible structures moored by tension legs anchored in the sea bed and tensioned by buoyancy of the tunnel. Although SFT has not been constructed, it is expected as one of the most attractive technology for crossing straits. The purpose of this study is to investigate the design procedures for SFT.
The important results obtained in this study are summarized as follows ;
1) Hydrodynamic force acting on SFT can be evaluated by potential theory as well as by a modified Morison's equation expanded to apply to such problems. The values of the added mass coefficient and the damping coefficient in the modified Morison's equation have been proposed for the design of SFT.
2) Analytical Models for 3-and 2-dimensional dynamic analyzes of SFT subjected to wave and seismic action have been proposed.
3) In the design of SFT selection of tension leg type and apparent specific gravity is important to prevent slack of tension legs which may cause impact force called snap.
4) Wave and seismic action are predominant loads in the design of SFT constructed in the coastal zone of Japan.
5) Mechanical and structural characteristics of SFTs with vertical legs, oblique legs and combined vertical and oblique legs are analyzed.
6) Fatigue of tension legs due to wave may be critical in the design of SFT.A practical method for checking safety for fatigue of tension legs has been proposed.
7) Rigidity of the joint between tunnel elements has large effects on the dynamic properties of SFT.

  • Research Products

    (36 results)

All Other

All Publications (36 results)

  • [Publications] Naohiro Maeda: "Study on Structural Characteristics of Support Systems for Submerged Floating Tunnel" Strait Crossings 94. Proc. of the Third Symp. on Strait Crossings, Alesund, Norway. 579-586 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Hiroshi Kunisu: "Numerical Analysis of Wave Force and Dynamic Response to the Submerged Floating Tunnels" Strait Crossings 94. Proc. of the Third Symp. on Strait Crossings, Alesund, Norway. 637-644 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Syunji Kanie: "Analytical Study on Dynamic Response of Submerged Floating Tunnels due to Wave Force" Strait Crossings 94. Proc. of the Third Symp. on Strait Crossings, Alesund, Norway. 659-666 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Susumu Mizuno: "Experimental Study on Characteristics of Submerged Floating Tunnels under Regular Waves" Strait Crossings 94. Proc. of the Third Symp. on Strait Crossings, Alesund, Norway. 667-674 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 田尻太郎: "FEMとBEMを用いた水中構造物の三次元自由振動解析" 構造工学における数値解析法シンポジウム論文集. 18. 45-50 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Shunji Kanie: "The Design and Analysis of Submerged Floating Tunnels Subject to Waves and Earthquakes" Proc. of International Workshop on Floating Structures in Coastal Zone, Hiroshima. 348-359 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Shunji Kanie: "Dynamic Response of Submerged Floating Tunnels to Waves and Earthquakes" Proc. of the Fifth East Asia-Pacific Conf. on Str. Eng. and Const., Gold Coast, Australia. 2. 1321-1326 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 渡部靖憲: "非線形波の内部流速算定法" 海岸工学論文集. 42-1. 106-109 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 前田直寛: "水中トンネルの係留策の構造信頼性評価" 構造工学論文集. 42A. 449-455 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 角田與史雄: "水中トンネル技術の開発" コンクリート工学. 34-4. 25-30 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Yasunori Watanabe: "Fluid Motion around Submerged Tunnel with Tension Legs under Severe Wave Conditions" Hydrodynamics, Theory and Applications. 477-482 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 蟹江俊仁: "水中浮遊式トンネルの波浪動揺特性について" 土木学会論文集. 556. 159-168 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Naohiro Maeda: "Fatigue Design Procedure of Taut Mooring Line for Submerged Floating Tunnels" Proc of International Workshop on Floating Structures in Coastal Zone, Hiroshima. 360-371 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 国栖広志: "高波浪下における水中トンネルの動揺および流体力特性" 海岸工学論文集. 41-2. 881-885 (1994)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 出雲健司: "海中に曝露された水中トンネル材料の性能特性について" 土木学会北海道支部論文報告集. 51. 416-421 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 田尻太郎: "水中線状構造物の三次元自由振動解析" 構造工学論文集. 41A. 35-48 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 前田直寛: "水中トンネルの係留形式とその構造特性" 構造工学論文集. 41A. 549-555 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 前田直寛: "水中トンネルの係留索の疲労設計法" 構造工学論文集. 41A. 557-565 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Naohiro Maeda et al.: "Study on Structural Characteristics of Support Systems for Submerged Floating Tunnel" Strait Crossings 94, Proceedings of the Third Symposium on Strait Crossings, Alesund, Norway. 579-586 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hiroshi Kunisu et al.: "Numerical Analysis of Wave Force and Dynamic Response to the Submerged Floating Tunnels" Strait Crossings 94, Proceedings of the Third Symposium on Strait Crossings, Alesund, Norway. 637-644 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Syunji Kanie et al.: "Analytical Study on Dynamic Response of Submerged Floating Tunnels due to Wave Force" Strait Crossings 94, Proceedings of the Third Symposium on Strait Crossings, Alesund, Norway.659-666 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Susumu Mizuno et al.: "Experimental Study on Characteristics of Submerged Floating Tunnels under Regular Waves" Strait Crossings 94, Proceedings of the Third Symposium on Strait Crossings, Alesund, Norway.667-674 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Taro Tajiri et al.: "Three Dimensional Free Vibration Analysis of Submerged Structures Using Finite Elements and Boundary Elements" Proc.of Symposium on Computational Methods in Structural Engineering and Related Fields. Vol.18. 45-50 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Shunji Kanie et al.: "The Design and Analysis of Submerged Floating Tunnels Subject to Waves and Earthquakes" Proc.of International Workshop on Floating Structures in Coastal Zone, Hiroshima. 348-359 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Naohiro Maeda et al.: "Fatigue Design Procedure of Taut Mooring Line for Submerged Floating Tunnels" Proc.of Int.Workshop on Floating Structures in Coastal Zone, Hiroshima, Japan. 360-371 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Hiroshi Kunisu et al.: "Displacement of Submerged Floating Tunnel and Fluid Force Acting on it under Severc Wave Conditions" Proceedings of Coastal Engineering, JSCE. Vol.41(2). 881-885 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kenji Izumo et al.: "The Characteristics of Exposed Materials in the Sea for the Tunnel in the Water" Proc.of Hokkaido Chapter. No.51A. 416-421 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Taro Tajiri et al.: "Three Dimensional Free Vibration Analysis of Submerged Floating Line Structures" Journal of Structural Engineering. Vol.41A. 35-48 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Naohiro Maeda: "Study on Structural Characteristics of Support Systems for Submerged Floating Tunnels" Journal of Structural Engineering. Vol.41A. 549-555 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Naohiro Maeda: "Fatigue Design Procedure of Taut Mooring Line for Submerged Floating Tunnels" Journal of Structural Engineering. Vol.41A. 557-565 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Shunji Kanie et al: "Dynamic Response of Submerged Floating Tunnels to Waves and Earthquakes" Proc.of the Fifth East Asia-Pacific Conf. on Structural Engineering and Construction, Gold Coast, Australia. Vol.2. 1321-1326 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yasunori Watanabe et al.: "Calculation Method of Inner Fluid Velocity under Nonlinear Waves" Proceedings of Coastal Engineering, JSCE. Vol.42(1). 106-109 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Naohiro Maeda et al.: "Structural Reliability Evaluation of Taut Mooring Line for Submerged Floating Tunnels" Journal of Structural Engineering. Vol.42A. 449-455 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yoshio Kakuta et al.: "Developments in Submerged Floating Tunnels" Concrete Journal. Vol.34, No.4. 25-30 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yasunori Watanabe et al.: "Fluid Motion around Submerged Tunnel with Tension Legs under Severe Wave Conditions" Hydrodynamics, Theory and Applications. 477-482 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Shunji Kanie et al.: "Dynamic Characteristics of Submerged Floating Tunnels due to Wave Force" Journal of Structural Mechanics and Earthquake Engineering, JSCE. 159-168 (1997)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-03-09  

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