Transportation Method for High-Speed Construction of Large Concrete Dams

大型コンクリートダムの高速施工に対応する運搬方法

As the need for high-speed construction of large concrete dams has arisen in recent years, ways to increase the efficiency and speed of concrete production, transportation, placing, and compacting are being studied. The transportation of large amounts of dam concrete including coarse aggregate of large maximum size without material segregation has been considered difficult to achieve through facility size expansion alone and a tough challenge. This report provides an overview of various concrete transportation equipment for dam construction, and focusing on the SP-TOM method, which enables the transportation of large amounts of concrete, it reports the results of a study of its mechanism for suppressing material segregation.近年，大型コンクリートダムの高速施工が求められており，コンクリートの製造，運搬，打込み，締固めなどの合理化，高速化が検討されている。ここで，粗骨材の最大寸法の大きいダムコンクリートを分離させることなく大量に運搬することは，設備の大型化のみでは達成しにくく，難題であると考えられていた。本稿では，ダム建設における各種コンクリート運搬設備の概要を説明するとともに，コンクリートの大量運搬が可能なSP-TOMに着目して，その材料分離の抑制機構について考察した結果を報告する。

• Record URL:
  • https://doi.org/10.3151/coj.53.12_1051
• Summary URL:
  • http://scholar.google.com/scholar_lookup?title=Transportation%20Method%20for%20High-Speed%20Construction%20of%20Large%20Concrete%20Dams&author=T.%20Tashiro&author=H.%20Ouchi&author=N.%20Sakata&author=K.%20Watanabe&publication_year=2015
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03871061
• Authors:
  • Tashiro, T
  • Ouchi, H
  • Sakata, N
  • Watanabe, K
• Publication Date: 2015

Language

• English
• Japanese

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 1051-1057
• Serial:
  • Concrete Journal
  • Volume: 53
  • Issue Number: 12
  • Publisher: Japan Concrete Institute
  • ISSN: 0387-1061
  • EISSN: 2186-2753
  • Serial URL: https://www.jstage.jst.go.jp/browse/coj

Subject/Index Terms

• TRT Terms: Aggregate segregation; Coarse aggregates; Compaction; Concrete; Concrete dams; Construction; Transportation
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 01619311
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Dec 21 2016 11:31AM