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IN-PIPE SOIL MEASURING METHOD, AND IN-PIPE SOIL MEASURING SYSTEM
To measure in a short period of time with a simple work, and to improve measuring accuracy.SOLUTION: An in-pipe soil measuring method for measuring height of an in-pipe soil 4 in an open end pile 2 includes: a step of winding-down or winding-up a crane wire 3 comprising a measuring weight 31 at a wire tip by a wire unwinding machine 32; a step of continuously capturing an outer peripheral face 3a of the crane wire 3 at a vicinity of the wire unwinding machine 32 using a capturing camera 6 with a predetermined capturing interval; a step of counting movement number of twist nodes of the crane wire 3 from an image data captured by the capturing camera 6; and a step of calculating wire displacement amount based on the calculated movement number of the twist nodes and obtaining height of the in-pipe soil based on the wire displacement amount.SELECTED DRAWING: Figure 1
【課題】簡単な作業により短時間で計測でき、かつ計測精度を向上させることができる。【解決手段】開端杭2の管内土4の高さを計測するための管内土計測方法であって、ワイヤ先端に計測用錘31を備えたクレーンワイヤ3をワイヤ巻出機32によって巻き下げ、又は巻き上げる工程と、ワイヤ巻出機32の近傍のクレーンワイヤ3の外周面3aを撮像カメラ6で所定の撮像間隔で連続的に撮影する工程と、撮像カメラ6で撮影した画像データよりクレーンワイヤ3の縒り目の移動個数をカウントする工程と、算出された縒り目の移動個数に基づいてワイヤ変位量を算出し、ワイヤ変位量に基づいて管内土の高さを求める工程と、を有する管内土計測方法を提供する。【選択図】図1
IN-PIPE SOIL MEASURING METHOD, AND IN-PIPE SOIL MEASURING SYSTEM
To measure in a short period of time with a simple work, and to improve measuring accuracy.SOLUTION: An in-pipe soil measuring method for measuring height of an in-pipe soil 4 in an open end pile 2 includes: a step of winding-down or winding-up a crane wire 3 comprising a measuring weight 31 at a wire tip by a wire unwinding machine 32; a step of continuously capturing an outer peripheral face 3a of the crane wire 3 at a vicinity of the wire unwinding machine 32 using a capturing camera 6 with a predetermined capturing interval; a step of counting movement number of twist nodes of the crane wire 3 from an image data captured by the capturing camera 6; and a step of calculating wire displacement amount based on the calculated movement number of the twist nodes and obtaining height of the in-pipe soil based on the wire displacement amount.SELECTED DRAWING: Figure 1
【課題】簡単な作業により短時間で計測でき、かつ計測精度を向上させることができる。【解決手段】開端杭2の管内土4の高さを計測するための管内土計測方法であって、ワイヤ先端に計測用錘31を備えたクレーンワイヤ3をワイヤ巻出機32によって巻き下げ、又は巻き上げる工程と、ワイヤ巻出機32の近傍のクレーンワイヤ3の外周面3aを撮像カメラ6で所定の撮像間隔で連続的に撮影する工程と、撮像カメラ6で撮影した画像データよりクレーンワイヤ3の縒り目の移動個数をカウントする工程と、算出された縒り目の移動個数に基づいてワイヤ変位量を算出し、ワイヤ変位量に基づいて管内土の高さを求める工程と、を有する管内土計測方法を提供する。【選択図】図1
IN-PIPE SOIL MEASURING METHOD, AND IN-PIPE SOIL MEASURING SYSTEM
管内土計測方法および管内土計測システム
ISHIHAMA YOSHIRO (Autor:in) / TODA KAZUHIDE (Autor:in) / MYONAKA SHINJI (Autor:in) / YANAGI ETSUTAKA (Autor:in) / KUSAKA HIROTAKA (Autor:in) / TANABE MASAKAZU (Autor:in) / SAWAISHI MASAMICHI (Autor:in) / SHOJI TOMOYUKI (Autor:in) / KOBAYASHI TAISUKE (Autor:in)
22.04.2021
Patent
Elektronische Ressource
Japanisch
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