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A platform for research: civil engineering, architecture and urbanism
EXCAVATING AND STIRRING DEVICE
To provide an excavating and stirring device capable of constructing a columnar improvement body and a core body integrally without pulling up from an excavated hole and replacing a component when constructing a core body comprising only a binder in a center portion of a columnar improvement body composed of a solidified mixture of an excavated soil and a binder.SOLUTION: In an excavating and stirring device, a main body cylinder portion 22 comprising excavating blades 24, stirring blades 26 and corotation preventing blades 25 and an inner cylinder 23 for constructing a core body accommodated inside the main body cylinder portion are connected via a connection shaft 28 penetrating them in a radial direction. When the main body cylinder portion 22 rotates around its shaft center, a handle 29 provided at one end of the connection shaft 28 interferes with the corotation preventing blades 25, thus the connection shaft 28 rotates, so that via an engagement mechanism of a pinion gear 281 provided in the connection shaft 28 and a rack gear 233 provided in a groove hole 232 of the inner cylinder 23 for constructing a core body, the inner cylinder 23 for constructing a core body moves forward/backward in a shaft center direction of the main body cylinder portion 22.SELECTED DRAWING: Figure 3
【課題】掘削土と結合剤との固化混合物からなる円柱状改良体の中心部分に結合材のみからなる芯体を築造するに際して、掘削孔からの引き上げや部材の付け替えを行わなくても、円柱状改良体と芯体とを一体的に築造することができる掘削攪拌装置を提供する。【解決手段】掘削攪拌装置は、掘削翼２４、攪拌翼２６および共回り防止翼２５を具備する本体筒部２２と、その内側に収容された芯体築造用内筒２３とが、それらを径方向に貫通する連結シャフト２８を介して連結され、本体筒部２２がその軸心周りに回転すると、連結シャフト２８の一端に設けられたハンドル２９が共回り防止翼２５に干渉することで連結シャフト２８が回転し、連結シャフト２８に設けられたピニオンギア２８１と芯体築造用内筒２３の溝孔２３２に設けられたラックギア２３３との噛合機構を介して芯体築造用内筒２３が本体筒部２２の軸心方向に進退するように構成される。【選択図】図３
EXCAVATING AND STIRRING DEVICE
To provide an excavating and stirring device capable of constructing a columnar improvement body and a core body integrally without pulling up from an excavated hole and replacing a component when constructing a core body comprising only a binder in a center portion of a columnar improvement body composed of a solidified mixture of an excavated soil and a binder.SOLUTION: In an excavating and stirring device, a main body cylinder portion 22 comprising excavating blades 24, stirring blades 26 and corotation preventing blades 25 and an inner cylinder 23 for constructing a core body accommodated inside the main body cylinder portion are connected via a connection shaft 28 penetrating them in a radial direction. When the main body cylinder portion 22 rotates around its shaft center, a handle 29 provided at one end of the connection shaft 28 interferes with the corotation preventing blades 25, thus the connection shaft 28 rotates, so that via an engagement mechanism of a pinion gear 281 provided in the connection shaft 28 and a rack gear 233 provided in a groove hole 232 of the inner cylinder 23 for constructing a core body, the inner cylinder 23 for constructing a core body moves forward/backward in a shaft center direction of the main body cylinder portion 22.SELECTED DRAWING: Figure 3
【課題】掘削土と結合剤との固化混合物からなる円柱状改良体の中心部分に結合材のみからなる芯体を築造するに際して、掘削孔からの引き上げや部材の付け替えを行わなくても、円柱状改良体と芯体とを一体的に築造することができる掘削攪拌装置を提供する。【解決手段】掘削攪拌装置は、掘削翼２４、攪拌翼２６および共回り防止翼２５を具備する本体筒部２２と、その内側に収容された芯体築造用内筒２３とが、それらを径方向に貫通する連結シャフト２８を介して連結され、本体筒部２２がその軸心周りに回転すると、連結シャフト２８の一端に設けられたハンドル２９が共回り防止翼２５に干渉することで連結シャフト２８が回転し、連結シャフト２８に設けられたピニオンギア２８１と芯体築造用内筒２３の溝孔２３２に設けられたラックギア２３３との噛合機構を介して芯体築造用内筒２３が本体筒部２２の軸心方向に進退するように構成される。【選択図】図３
EXCAVATING AND STIRRING DEVICE
掘削攪拌装置
HACHINOHE SHOTARO (author) / YAGI MASAO (author) / MATSUMOTO YASUSHI (author) / MATSUTANI YUJI (author) / HIRANO SEISHI (author) / TSUCHIYA ATSUO (author)
2021-04-30
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
| European Patent Office | 2024
Excavating and stirring integrated mechanism and construction method thereof
| European Patent Office | 2023