A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PILE FOUNDATION AND METHOD FOR EVALUATING PERIPHERAL FRICTIONAL FORCE OF PILE FOUNDATION
To provide a pile foundation having a large peripheral frictional force up to an upper end side of a pile hole, and a method for evaluating the peripheral frictional force of the pile foundation capable of accurately evaluating the peripheral frictional force of the pile peripheral portion of the pile foundation.SOLUTION: In a pile foundation comprising a prefabricated pile embedded in a pile hole having a first excavated portion on a lower end side and a second excavated portion above a first excavated portion, a foot protection portion composed of hardening material, and a pile peripheral surface composed of hardening material, a diameter of the first excavated portion is 1.1 times or more and 2.0 times or less than a first reference excavated diameter determined based on an outer diameter of a portion of a prefabricated pile placed in the first excavated portion, and a diameter of the second excavated portion is 1.1 times or more and 2.0 times or less than a second standard excavated diameter determined based on the outer diameter of the portion of the prefabricated pile placed in the second excavated portion, and smaller and constant than the diameter of the first excavated portion. The second excavated portion extends from the upper end of the first excavated portion to the pile head of the prefabricated pile.SELECTED DRAWING: Figure 1
【課題】杭穴の上端側まで周面摩擦力が大きい杭基礎、及び、当該杭基礎における杭周面部の周面摩擦力を正確に評価可能な杭基礎の周面摩擦力の評価方法を提供する。【解決手段】下端側に第１掘削部を有するとともに第１掘削部よりも上方に第２掘削部を有する杭穴に埋設された既製杭と、硬化性材料によって構成される根固め部と、硬化性材料によって構成される杭周面部と、を備える杭基礎において、第１掘削部の直径は、第１掘削部に配置される既製杭の部分の外径に基づいて定まる第１基準掘削径の１．１倍以上２．０倍以下であり、第２掘削部の直径は、第２掘削部に配置される既製杭の部分の外径に基づいて定まる第２基準掘削径の１．１倍以上２．０倍以下であって、第１掘削部の直径よりも小さく一定であり、第２掘削部は、第１掘削部の上端から既製杭の杭頭部まで延在している。【選択図】 図１
PILE FOUNDATION AND METHOD FOR EVALUATING PERIPHERAL FRICTIONAL FORCE OF PILE FOUNDATION
To provide a pile foundation having a large peripheral frictional force up to an upper end side of a pile hole, and a method for evaluating the peripheral frictional force of the pile foundation capable of accurately evaluating the peripheral frictional force of the pile peripheral portion of the pile foundation.SOLUTION: In a pile foundation comprising a prefabricated pile embedded in a pile hole having a first excavated portion on a lower end side and a second excavated portion above a first excavated portion, a foot protection portion composed of hardening material, and a pile peripheral surface composed of hardening material, a diameter of the first excavated portion is 1.1 times or more and 2.0 times or less than a first reference excavated diameter determined based on an outer diameter of a portion of a prefabricated pile placed in the first excavated portion, and a diameter of the second excavated portion is 1.1 times or more and 2.0 times or less than a second standard excavated diameter determined based on the outer diameter of the portion of the prefabricated pile placed in the second excavated portion, and smaller and constant than the diameter of the first excavated portion. The second excavated portion extends from the upper end of the first excavated portion to the pile head of the prefabricated pile.SELECTED DRAWING: Figure 1
【課題】杭穴の上端側まで周面摩擦力が大きい杭基礎、及び、当該杭基礎における杭周面部の周面摩擦力を正確に評価可能な杭基礎の周面摩擦力の評価方法を提供する。【解決手段】下端側に第１掘削部を有するとともに第１掘削部よりも上方に第２掘削部を有する杭穴に埋設された既製杭と、硬化性材料によって構成される根固め部と、硬化性材料によって構成される杭周面部と、を備える杭基礎において、第１掘削部の直径は、第１掘削部に配置される既製杭の部分の外径に基づいて定まる第１基準掘削径の１．１倍以上２．０倍以下であり、第２掘削部の直径は、第２掘削部に配置される既製杭の部分の外径に基づいて定まる第２基準掘削径の１．１倍以上２．０倍以下であって、第１掘削部の直径よりも小さく一定であり、第２掘削部は、第１掘削部の上端から既製杭の杭頭部まで延在している。【選択図】 図１
PILE FOUNDATION AND METHOD FOR EVALUATING PERIPHERAL FRICTIONAL FORCE OF PILE FOUNDATION
杭基礎及び杭基礎の周面摩擦力の評価方法
HOMMA YUSUKE (author) / KOUME SHIMPEI (author)
2022-12-15
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
| European Patent Office | 2015
PILE FOUNDATION REPAIR METHOD, PILE FOUNDATION REPAIR KIT, AND PILE FOUNDATION STRUCTURE
| European Patent Office | 2016