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A platform for research: civil engineering, architecture and urbanism
DRIVE STOP MANAGEMENT METHOD FOR DRIVEN PILE AND DRIVE STOP MANAGEMENT SUPPORT SYSTEM FOR DRIVEN PILE
To quickly measure the insertion amount and rebound amount of a driven pile regardless of site conditions.SOLUTION: A drive stop management method for driven piles comprises: providing a first lattice part 14 in at least one location on the peripheral surface of a driven pile 12 that is exposed when driven; photographing the first lattice part 14 by at least one photographing means 18 when the driven pile 12 is driven after reaching a support layer; and calculating the insertion amount and rebound amount of the driven pile 12 with control calculation means 24 by using the sampling moire method based on the results of photographing the first lattice section 14. The sampling moire method can calculate displacement amounts even from images of lattices that slightly blur. Furthermore, because calibration is not required for the photographing means 18 and control calculation means 24, it is possible to quickly measure the insertion amount and rebound amount of the driven pile 12 according to various site conditions.SELECTED DRAWING: Figure 1
【課題】現場条件の如何に関わらず、打設杭の貫入量及びリバウンド量を迅速に計測する。【解決手段】打設杭の打ち止め管理方法は、打設時に露出する打設杭１２の外周面の少なくとも１箇所に第１の格子柄部１４を設け、打設杭１２が支持層に達した後で打設される際に、少なくとも１つの撮影手段１８によって第１の格子柄部１４を撮影する。そして、第１の格子柄部１４の撮影結果から、制御算出手段２４により、サンプリングモアレ法を利用して、打設杭１２の貫入量及びリバウンド量を算出する。サンプリングモアレ法は、ピントが多少ズレた格子柄の画像からも変位量を算出でき、更に、撮影手段１８や制御算出手段２４には、キャリブレーションが不要であるため、様々な現場条件に対応して、打設杭１２の貫入量及びリバウンド量を迅速に計測することができる。【選択図】図１
DRIVE STOP MANAGEMENT METHOD FOR DRIVEN PILE AND DRIVE STOP MANAGEMENT SUPPORT SYSTEM FOR DRIVEN PILE
To quickly measure the insertion amount and rebound amount of a driven pile regardless of site conditions.SOLUTION: A drive stop management method for driven piles comprises: providing a first lattice part 14 in at least one location on the peripheral surface of a driven pile 12 that is exposed when driven; photographing the first lattice part 14 by at least one photographing means 18 when the driven pile 12 is driven after reaching a support layer; and calculating the insertion amount and rebound amount of the driven pile 12 with control calculation means 24 by using the sampling moire method based on the results of photographing the first lattice section 14. The sampling moire method can calculate displacement amounts even from images of lattices that slightly blur. Furthermore, because calibration is not required for the photographing means 18 and control calculation means 24, it is possible to quickly measure the insertion amount and rebound amount of the driven pile 12 according to various site conditions.SELECTED DRAWING: Figure 1
【課題】現場条件の如何に関わらず、打設杭の貫入量及びリバウンド量を迅速に計測する。【解決手段】打設杭の打ち止め管理方法は、打設時に露出する打設杭１２の外周面の少なくとも１箇所に第１の格子柄部１４を設け、打設杭１２が支持層に達した後で打設される際に、少なくとも１つの撮影手段１８によって第１の格子柄部１４を撮影する。そして、第１の格子柄部１４の撮影結果から、制御算出手段２４により、サンプリングモアレ法を利用して、打設杭１２の貫入量及びリバウンド量を算出する。サンプリングモアレ法は、ピントが多少ズレた格子柄の画像からも変位量を算出でき、更に、撮影手段１８や制御算出手段２４には、キャリブレーションが不要であるため、様々な現場条件に対応して、打設杭１２の貫入量及びリバウンド量を迅速に計測することができる。【選択図】図１
DRIVE STOP MANAGEMENT METHOD FOR DRIVEN PILE AND DRIVE STOP MANAGEMENT SUPPORT SYSTEM FOR DRIVEN PILE
打設杭の打ち止め管理方法及び打設杭の打ち止め管理補助システム
UMEZU JUNICHI (author) / NAKAGAWA TETSUYA (author) / KUSAKARI SHIGENAO (author)
2020-01-30
Patent
Electronic Resource
Japanese
IPC:
E02D
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