STRUCTURE OF BACK FILL FOR EXISTING STRUCTURE

PROBLEM TO BE SOLVED: To provide back fill for an existing structure, which establishes compatibility between maintenance of an attitude of an abutment and prevention of a step in a boundary by improving earthquake resistance.SOLUTION: An embracing bag 30 comprises a U-shaped cross-section top sheet...

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Bibliographic Details
Main Authors TSUJI SHINICHIRO, YOKOTA YOSHIHIRO, TATSUTA NAOKI
Format Patent
LanguageEnglish
Japanese
Published 24.12.2015
Subjects
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
SOIL SHIFTING
UNDERGROUND OR UNDERWATER STRUCTURES
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Summary:PROBLEM TO BE SOLVED: To provide back fill for an existing structure, which establishes compatibility between maintenance of an attitude of an abutment and prevention of a step in a boundary by improving earthquake resistance.SOLUTION: An embracing bag 30 comprises a U-shaped cross-section top sheet 31, and a side sheet 32 for closing both end openings of the top sheet 31. Front surfaces and front side surfaces of a plurality of fill layers 21 are enclosed with the embracing bag 30 made of the sheet. An end of the embracing bag 30 is fixed between the fill layers 21. The front surfaces and front side surfaces of the plurality of fill layers 21 are embraced by the embracing bag 30. 【課題】耐震性を高めることにより、橋台の姿勢の保持と境界部の段差防止が両立した既設構造物の背面盛土を提供する。【解決手段】抱持袋３０は断面コの字形のトップシート３１と、トップシート３１の両端開口部を封鎖するサイドシート３２とを具備する。複数の盛土層２１の前面および前方側面を、シート製の抱持袋３０で包囲し、抱持袋３０の端部を盛土層２１の間に固定し、複数の盛土層２１の前面および前方側面を抱持袋３０で抱持する。【選択図】図１
Bibliography:Application Number: JP20140119581