A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
EXISTING PILE
To provide an existing pile which can surely reach a support layer according to a current state of a construction target ground.SOLUTION: An existing pile includes a pile body 11 having a length determined by design corresponding to a depth of a predicted support layer, an auxiliary pile 12 which is formed of a plurality of types having different lengths to adjust a length of the existing pile, and can be connected to the lower end of the pile body 11, and a connection part 13 provided between the pile body 11 and the auxiliary pile 12. A mechanism for facilitating rotary penetration and expressing a tip supporting force and the pile body 11 can be separated from each other in a portion where only an axial force acts on the pile body 11. When the support layer is lower than the predicted depth, the auxiliary pile 12 having a length whose lower end reaches the support layer by connection with the pile body 11 is selected, and the auxiliary pile 12 selected to the lower end of the pile body 11 is integrally connected in a state in which the mechanism and the pile body 11 are separated from one another.SELECTED DRAWING: Figure 1
【課題】 施工対象地盤の現状に合わせて、支持層に確実に到達させることが可能な既成杭を提供する。【解決手段】 予測した支持層の深さに対応するように設計で定めた長さを有する杭本体１１と、既成杭の長さを調整するために、長さがそれぞれ異なる複数種類からなり、杭本体１１の下端部に接続可能な補助杭１２と、杭本体１１と補助杭１２との間に設けた接続部１３とを備える。回転貫入を容易に行うとともに先端支持力を発現するための機構と杭本体１１とは、杭本体１１に軸力のみが作用する部分で分離可能である。支持層が予測した深さよりも下部であった場合に、杭本体１１と接続することにより下端部が支持層に達する長さの補助杭１２を選択して、機構と杭本体１１とを分離した状態で、杭本体１１の下端部に対して選択した補助杭１２を一体に接続する。【選択図】図１
EXISTING PILE
To provide an existing pile which can surely reach a support layer according to a current state of a construction target ground.SOLUTION: An existing pile includes a pile body 11 having a length determined by design corresponding to a depth of a predicted support layer, an auxiliary pile 12 which is formed of a plurality of types having different lengths to adjust a length of the existing pile, and can be connected to the lower end of the pile body 11, and a connection part 13 provided between the pile body 11 and the auxiliary pile 12. A mechanism for facilitating rotary penetration and expressing a tip supporting force and the pile body 11 can be separated from each other in a portion where only an axial force acts on the pile body 11. When the support layer is lower than the predicted depth, the auxiliary pile 12 having a length whose lower end reaches the support layer by connection with the pile body 11 is selected, and the auxiliary pile 12 selected to the lower end of the pile body 11 is integrally connected in a state in which the mechanism and the pile body 11 are separated from one another.SELECTED DRAWING: Figure 1
【課題】 施工対象地盤の現状に合わせて、支持層に確実に到達させることが可能な既成杭を提供する。【解決手段】 予測した支持層の深さに対応するように設計で定めた長さを有する杭本体１１と、既成杭の長さを調整するために、長さがそれぞれ異なる複数種類からなり、杭本体１１の下端部に接続可能な補助杭１２と、杭本体１１と補助杭１２との間に設けた接続部１３とを備える。回転貫入を容易に行うとともに先端支持力を発現するための機構と杭本体１１とは、杭本体１１に軸力のみが作用する部分で分離可能である。支持層が予測した深さよりも下部であった場合に、杭本体１１と接続することにより下端部が支持層に達する長さの補助杭１２を選択して、機構と杭本体１１とを分離した状態で、杭本体１１の下端部に対して選択した補助杭１２を一体に接続する。【選択図】図１
EXISTING PILE
既成杭
OKAWA NAOYA (author) / SHIMIZU HIDEKI (author)
2020-02-06
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
EXISTING PILE REMOVAL DEVICE AND EXISTING PILE REMOVAL METHOD
| European Patent Office | 2022
PILE HEAD STRUCTURE OF EXISTING PILE, AND PILE HEAD STRUCTURE OF EXISTING PILE AND NEW PILE
| European Patent Office | 2024
EXISTING PILE REMOVAL DEVICE AND EXISTING PILE REMOVAL METHOD
| European Patent Office | 2022
EXISTING PILE REMOVAL DEVICE AND EXISTING PILE REMOVAL METHOD
| European Patent Office | 2022