A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
DEMOLITION METHOD OF UNDERGROUND SKELETON, AND HOLDING STRUCTURE OF OUTER WALL
To demolish an underground skeleton while reducing a construction cost and while resisting soil pressure from a natural ground even when a natural ground in an outer periphery of an underground skeleton is weak.SOLUTION: An earth retaining wall 4 is disposed at an outer periphery of an outer wall 2 of an existing underground skeleton 1, and an oblique beam 5 is stretched between a pressure-resistant slab 3 connected to the outer wall 2 and the outer wall 2 at an inner peripheral side of the underground skeleton 1 and connected to both. An inner peripheral side part of a connection portion of the pressure-resistant slab 3 to a lower end of the oblique beam 5 is demolished and removed. The left ground of a part along an inner peripheral side of the pressure-resistant slab 3 is improved to construct an outside improvement body 6. The outside improvement body 6 is made to bear a reactive force of an axial force applied to the oblique beam 5.SELECTED DRAWING: Figure 1
【課題】施工コストを削減しつつ、地下躯体外周の地山が軟弱である場合にも地山からの土圧に抵抗しながら、地下躯体の解体を遂行可能にする。【解決手段】既存の地下躯体１の外壁２の外周に山留め壁４を配置すると共に、地下躯体１の内周側の、外壁２に接続した耐圧版３と外壁２との間に斜め梁５を架設して双方に接続し、耐圧版３の、斜め梁５の下端部との接続部分の内周側の部分を解体・撤去し、残された耐圧版３の内周側に沿った部分の地盤を地盤改良して外側改良体６を構築し、斜め梁５に作用する軸力の反力を外側改良体６に負担させる。【選択図】図１
DEMOLITION METHOD OF UNDERGROUND SKELETON, AND HOLDING STRUCTURE OF OUTER WALL
To demolish an underground skeleton while reducing a construction cost and while resisting soil pressure from a natural ground even when a natural ground in an outer periphery of an underground skeleton is weak.SOLUTION: An earth retaining wall 4 is disposed at an outer periphery of an outer wall 2 of an existing underground skeleton 1, and an oblique beam 5 is stretched between a pressure-resistant slab 3 connected to the outer wall 2 and the outer wall 2 at an inner peripheral side of the underground skeleton 1 and connected to both. An inner peripheral side part of a connection portion of the pressure-resistant slab 3 to a lower end of the oblique beam 5 is demolished and removed. The left ground of a part along an inner peripheral side of the pressure-resistant slab 3 is improved to construct an outside improvement body 6. The outside improvement body 6 is made to bear a reactive force of an axial force applied to the oblique beam 5.SELECTED DRAWING: Figure 1
【課題】施工コストを削減しつつ、地下躯体外周の地山が軟弱である場合にも地山からの土圧に抵抗しながら、地下躯体の解体を遂行可能にする。【解決手段】既存の地下躯体１の外壁２の外周に山留め壁４を配置すると共に、地下躯体１の内周側の、外壁２に接続した耐圧版３と外壁２との間に斜め梁５を架設して双方に接続し、耐圧版３の、斜め梁５の下端部との接続部分の内周側の部分を解体・撤去し、残された耐圧版３の内周側に沿った部分の地盤を地盤改良して外側改良体６を構築し、斜め梁５に作用する軸力の反力を外側改良体６に負担させる。【選択図】図１
DEMOLITION METHOD OF UNDERGROUND SKELETON, AND HOLDING STRUCTURE OF OUTER WALL
地下躯体の解体方法及び外壁の保持構造
NAGATA TETSUYA (author)
2022-10-18
Patent
Electronic Resource
Japanese
| European Patent Office | 2015
Energy reduction underground retaining wall demolition method
| European Patent Office | 2023
UNDERGROUND STRUCTURE DEMOLITION METHOD USING EXISTING UNDERGROUND STRUCUTRES
| European Patent Office | 2024