ESTIMATION METHOD OF TENSIONING FORCE OF TENDON IN GROUND ANCHOR

To provide a method which can estimate a tensioning force working to a tendon of a ground anchor more easily in a spot where the ground anchor is provided.SOLUTION: A method estimating a tensioning force working to a tendon of a ground anchor having the tendon fastened by a fixing member located on...

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Bibliographic Details
Main Authors FUJITOMO TARO, TAYAMA SATOSHI, TOKUDA NAOKI, MURAKAMI TOYOKAZU
Format Patent
LanguageEnglish
Japanese
Published 01.08.2019
Subjects
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
SOIL SHIFTING
TESTING
UNDERGROUND OR UNDERWATER STRUCTURES
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Summary:To provide a method which can estimate a tensioning force working to a tendon of a ground anchor more easily in a spot where the ground anchor is provided.SOLUTION: A method estimating a tensioning force working to a tendon of a ground anchor having the tendon fastened by a fixing member located on a compression plate arranged to a pressed body with a condition that the end is projected includes: (1) a step measuring residual stress of the fixing member fastening the tendon to the compression plate; and (2) a step calculating the tensioning force corresponding to the measured residual stress on the basis of a calibration curve obtained previously indicating a correlation relationship between the residual stress and the tensioning force.SELECTED DRAWING: Figure 2 【課題】グラウンドアンカーが設置された現場において、グラウンドアンカーの緊張材に作用する緊張力をより簡便に推定できる方法を提供する。【解決手段】受圧体に設けた支圧板上に位置する定着部材によって、端部が突出した状態で締結された緊張材を有して成るグラウンドアンカーにおいて、緊張材に作用する緊張力を推定する方法は、（１）緊張材を支圧板に締結する定着部材の残留応力を測定する工程、および（２）残留応力と緊張力との相関関係を示す、予め求めた検量線に基づいて、測定された残留応力に対応する緊張力を求める工程を含む。【選択図】図２
Bibliography:Application Number: JP20180010435