Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
SOIL RETENTION STRUCTURE
To provide a soil retention structure allowing timbering installation for supporting an underground outer wall to be eliminated.SOLUTION: A soil retention structure 10 comprises: an underground outer wall 12 remained after demolishing an existing underground structure; a newly installed soil retention structure 14 provided with a plurality of core members 22 and installed on an inner wall surface side of the underground outer wall 12; a connecting part 24 connecting a lower end part of the underground outer wall 12 and an upper end part of the core member 22; and a plurality of timbering 32 supporting the inner wall surface of the newly installed soil retention structure 14, wherein timbering 32A at the uppermost stage of the plurality of the timbering 32 is installed at such a height where lower moment by the soil pressure of a rear ground 16 of the underground outer wall 12 acting on the underground outer wall 12 positioned at a lower part than that of the timbering 32A at the uppermost stage is equal to upper moment by the soil pressure of the rear ground 16 of the underground outer wall 12 acting on the underground outer wall 12 positioned at an upper part than that of the timbering 32A at the uppermost stage or more than the upper moment.SELECTED DRAWING: Figure 2
【課題】地下外壁を支持する支保工を省略することができる山留め構造を提供する。【解決手段】山留め構造１０は、既存地下構造物の解体時に残された地下外壁１２と、複数の芯材２２を備え、地下外壁１２の内壁面側に打設された新設山留め壁１４と、地下外壁１２の下端部と芯材２２の上端部とを接合する接合部２４と、新設山留め壁１４の内壁面を支持する複数の支保工３２と、を有し、複数の支保工３２のうち最上段目の支保工３２Ａは、地下外壁１２の背面地盤１６の土圧によって最上段目の支保工３２Ａより下部に位置する地下外壁１２に作用する下部モーメントが、地下外壁１２の背面地盤１６の土圧によって最上段目の支保工３２Ａより上部に位置する地下外壁１２に作用する上部モーメントと等しくなる、又は上部モーメントより大きくなる高さに設置されている。【選択図】図２
SOIL RETENTION STRUCTURE
To provide a soil retention structure allowing timbering installation for supporting an underground outer wall to be eliminated.SOLUTION: A soil retention structure 10 comprises: an underground outer wall 12 remained after demolishing an existing underground structure; a newly installed soil retention structure 14 provided with a plurality of core members 22 and installed on an inner wall surface side of the underground outer wall 12; a connecting part 24 connecting a lower end part of the underground outer wall 12 and an upper end part of the core member 22; and a plurality of timbering 32 supporting the inner wall surface of the newly installed soil retention structure 14, wherein timbering 32A at the uppermost stage of the plurality of the timbering 32 is installed at such a height where lower moment by the soil pressure of a rear ground 16 of the underground outer wall 12 acting on the underground outer wall 12 positioned at a lower part than that of the timbering 32A at the uppermost stage is equal to upper moment by the soil pressure of the rear ground 16 of the underground outer wall 12 acting on the underground outer wall 12 positioned at an upper part than that of the timbering 32A at the uppermost stage or more than the upper moment.SELECTED DRAWING: Figure 2
【課題】地下外壁を支持する支保工を省略することができる山留め構造を提供する。【解決手段】山留め構造１０は、既存地下構造物の解体時に残された地下外壁１２と、複数の芯材２２を備え、地下外壁１２の内壁面側に打設された新設山留め壁１４と、地下外壁１２の下端部と芯材２２の上端部とを接合する接合部２４と、新設山留め壁１４の内壁面を支持する複数の支保工３２と、を有し、複数の支保工３２のうち最上段目の支保工３２Ａは、地下外壁１２の背面地盤１６の土圧によって最上段目の支保工３２Ａより下部に位置する地下外壁１２に作用する下部モーメントが、地下外壁１２の背面地盤１６の土圧によって最上段目の支保工３２Ａより上部に位置する地下外壁１２に作用する上部モーメントと等しくなる、又は上部モーメントより大きくなる高さに設置されている。【選択図】図２
SOIL RETENTION STRUCTURE
山留め構造
KUMAGAI HIROTO (Autor:in) / SATO EIJI (Autor:in) / KONO TAKAO (Autor:in) / KANEKO KEITA (Autor:in) / SHINOHARA MASANORI (Autor:in) / SUNAI TAKAHIDE (Autor:in) / SHIDA TSUBASA (Autor:in) / MAE YASUHIRO (Autor:in)
17.12.2020
Patent
Elektronische Ressource
Japanisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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