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A platform for research: civil engineering, architecture and urbanism
To suppress vibration, noise and powdery dust and to easily demolish a mat slab.SOLUTION: A cutting step comprises: a groove portion forming step of forming a groove portion 2 reaching an intermediate portion in a vertical direction of a mat slab 1 from an upper end portion along an outer periphery portion of a region 13 to be cut; a core hole forming step of forming first core holes 41 so as to reach a bottom portion 2a of the groove portion 2 in two different positions in the groove portion 2; a wire saw device installing step of installing a pulley 52 in each of two first core holes 41, installing an intermediate portion 51a in a longitudinal direction of a wire saw 51 so as to surround the region 13 to be cut, winding the wire saw 51 around the two pulleys 52, and pulling out both end portions 51b in the longitudinal direction of the wire saw 51 to an upper part of the mat slab 1 through the core hole; a bottom portion cutting step of pulling upward each of both end portions 51b of the wire saw 51, making the wire saw 51 move along a bottom portion 13a of the region 13 to be cut, and cutting the region 13 to be cut.SELECTED DRAWING: Figure 5
【課題】振動・騒音・粉じんを抑えることができるとともに、マットスラブを容易に解体することができる。【解決手段】切断工程では、切断領域１３の外周部に沿ってマットスラブ１の上端部から上下方向の中間部まで達する溝部２を形成する溝部形成工程と、溝部２における異なる２箇所において第１コア孔４１を溝部２の底部２ａに達するように形成するコア孔形成工程と、２つの第１コア孔４１それぞれにプーリ５２を設置し、ワイヤーソー５１の長さ方向の中間部分５１ａを切断領域１３を囲むように設置するとともに、前記ワイヤーソー５１を２つのプーリ５２に巻き掛けて、ワイヤーソー５１の長さ方向の両端部分５１ｂをコア孔を通してマットスラブ１の上方に引出すワイヤーソー装置設置工程と、ワイヤーソー５１を両端部分５１ｂそれぞれから上方に引き上げて切断領域１３の底部１３ａに沿って移動させ、切断領域１３を切断する底部切断工程と、を有する。【選択図】図５
To suppress vibration, noise and powdery dust and to easily demolish a mat slab.SOLUTION: A cutting step comprises: a groove portion forming step of forming a groove portion 2 reaching an intermediate portion in a vertical direction of a mat slab 1 from an upper end portion along an outer periphery portion of a region 13 to be cut; a core hole forming step of forming first core holes 41 so as to reach a bottom portion 2a of the groove portion 2 in two different positions in the groove portion 2; a wire saw device installing step of installing a pulley 52 in each of two first core holes 41, installing an intermediate portion 51a in a longitudinal direction of a wire saw 51 so as to surround the region 13 to be cut, winding the wire saw 51 around the two pulleys 52, and pulling out both end portions 51b in the longitudinal direction of the wire saw 51 to an upper part of the mat slab 1 through the core hole; a bottom portion cutting step of pulling upward each of both end portions 51b of the wire saw 51, making the wire saw 51 move along a bottom portion 13a of the region 13 to be cut, and cutting the region 13 to be cut.SELECTED DRAWING: Figure 5
【課題】振動・騒音・粉じんを抑えることができるとともに、マットスラブを容易に解体することができる。【解決手段】切断工程では、切断領域１３の外周部に沿ってマットスラブ１の上端部から上下方向の中間部まで達する溝部２を形成する溝部形成工程と、溝部２における異なる２箇所において第１コア孔４１を溝部２の底部２ａに達するように形成するコア孔形成工程と、２つの第１コア孔４１それぞれにプーリ５２を設置し、ワイヤーソー５１の長さ方向の中間部分５１ａを切断領域１３を囲むように設置するとともに、前記ワイヤーソー５１を２つのプーリ５２に巻き掛けて、ワイヤーソー５１の長さ方向の両端部分５１ｂをコア孔を通してマットスラブ１の上方に引出すワイヤーソー装置設置工程と、ワイヤーソー５１を両端部分５１ｂそれぞれから上方に引き上げて切断領域１３の底部１３ａに沿って移動させ、切断領域１３を切断する底部切断工程と、を有する。【選択図】図５
DEMOLISHING METHOD OF MAT SLAB
マットスラブの解体方法
OKUYAMA NOBUHIRO (author)
2019-07-04
Patent
Electronic Resource
Japanese
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