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PROBLEM TO BE SOLVED: To provide a precast pile embedding method capable of increasing an end bearing capacity and a peripheral surface frictional force and improving an extraction resistance force of a precast pile by strongly integrating a drilled hole and embedded precast pile.SOLUTION: In a precast pile embedding method, soil cement 14 formed around a base part of a precast pile 15 in a drilled hole 11 is expanded by adding a bloating agent having expanding effect in a cement milk or mortar 13 in advance.SELECTED DRAWING: Figure 1
【課題】掘削孔と埋設した既製杭を強固に一体化して、既製杭の先端支持力や周面摩擦力の増大及び引抜抵抗力の向上を図った既製杭埋込み杭工法を提供すること。【解決手段】セメントミルク又はモルタル13には予め膨張作用を有する発泡剤を添加しておくことにより、掘削孔11中の既製杭15の基部周辺に形成したソイルセメント14を膨張させる既製杭埋込み工法。【選択図】図1
PROBLEM TO BE SOLVED: To provide a precast pile embedding method capable of increasing an end bearing capacity and a peripheral surface frictional force and improving an extraction resistance force of a precast pile by strongly integrating a drilled hole and embedded precast pile.SOLUTION: In a precast pile embedding method, soil cement 14 formed around a base part of a precast pile 15 in a drilled hole 11 is expanded by adding a bloating agent having expanding effect in a cement milk or mortar 13 in advance.SELECTED DRAWING: Figure 1
【課題】掘削孔と埋設した既製杭を強固に一体化して、既製杭の先端支持力や周面摩擦力の増大及び引抜抵抗力の向上を図った既製杭埋込み杭工法を提供すること。【解決手段】セメントミルク又はモルタル13には予め膨張作用を有する発泡剤を添加しておくことにより、掘削孔11中の既製杭15の基部周辺に形成したソイルセメント14を膨張させる既製杭埋込み工法。【選択図】図1
PRECAST PILE EMBEDDING METHOD
既製杭埋込み工法
NAKANO TAKAO (author)
2016-12-08
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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