A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
BASE-ENLARGED FOUNDATION STRUCTURE, COMPOSITE FOUNDATION STRUCTURE OF REINFORCED SOIL AND CONSTRUCTION METHOD THEREOF
To provide a foundation structure installed in soil improved in lifting resistance thereof.SOLUTION: A composite foundation structure comprises: a base-enlarged foundation structure having a columnar body 13 structured in an excavated hole 3 formed in soil 1 and a base-enlarged base plate 12 fixed to a lower end of the columnar body 13 with a larger cross sectional area than the columnar body 13 and provided at a bottom part of the excavated hole 3; earth retaining timbering 11 installed on a wall face of the excavated hole 3; back-filling sediment 4 back-filled into the excavated hole 3 after installing the base-enlarged foundation structure and compacted; multiple outside lock bolts 20 provided in a depth direction of the excavated hole 3 with intervals to each other and radially extended outward from the earth-retaining timber 11 and buried in the outside soil 1 around the earth-retaining timber 11, respectively; and multiple inside lock bolts 20 jointed to each of the outside lock bolts 20 with couplers, extended inward from the earth-retaining timber 11 and buried in the inside soil of the earth-retaining timber 11.SELECTED DRAWING: Figure 1
【課題】地盤中に設置される基礎構造物の引揚抵抗を向上する。【解決手段】複合基礎構造物は、地盤１に形成される掘削孔３内に構築される柱状体13、および柱状体13の下端部に固定され、柱状体13よりも断面積が大きく、掘削孔３内の底部に設けられる拡底底版12を備える拡底基礎構造体、掘削孔３の壁面に設けられる土留支保工11、拡底基礎構造体が設けられた後の掘削孔４に埋め戻されて締め固められる埋め戻し土砂４、掘削孔３の深さ方向に互いに間隔をあけて複数設けられ、かつ土留支保工11から放射状に外向きにのび、それぞれが土留支保工11の周囲の外側地盤１に埋設される複数の外側ロックボルト20、ならびに外側ロックボルト20のそれぞれとカップラーを用いて接合され、土留支保工11から内向きにのび、土留支保工11の内側地盤に埋設される複数の内側ロックボルト20を備えている。【選択図】図１
BASE-ENLARGED FOUNDATION STRUCTURE, COMPOSITE FOUNDATION STRUCTURE OF REINFORCED SOIL AND CONSTRUCTION METHOD THEREOF
To provide a foundation structure installed in soil improved in lifting resistance thereof.SOLUTION: A composite foundation structure comprises: a base-enlarged foundation structure having a columnar body 13 structured in an excavated hole 3 formed in soil 1 and a base-enlarged base plate 12 fixed to a lower end of the columnar body 13 with a larger cross sectional area than the columnar body 13 and provided at a bottom part of the excavated hole 3; earth retaining timbering 11 installed on a wall face of the excavated hole 3; back-filling sediment 4 back-filled into the excavated hole 3 after installing the base-enlarged foundation structure and compacted; multiple outside lock bolts 20 provided in a depth direction of the excavated hole 3 with intervals to each other and radially extended outward from the earth-retaining timber 11 and buried in the outside soil 1 around the earth-retaining timber 11, respectively; and multiple inside lock bolts 20 jointed to each of the outside lock bolts 20 with couplers, extended inward from the earth-retaining timber 11 and buried in the inside soil of the earth-retaining timber 11.SELECTED DRAWING: Figure 1
【課題】地盤中に設置される基礎構造物の引揚抵抗を向上する。【解決手段】複合基礎構造物は、地盤１に形成される掘削孔３内に構築される柱状体13、および柱状体13の下端部に固定され、柱状体13よりも断面積が大きく、掘削孔３内の底部に設けられる拡底底版12を備える拡底基礎構造体、掘削孔３の壁面に設けられる土留支保工11、拡底基礎構造体が設けられた後の掘削孔４に埋め戻されて締め固められる埋め戻し土砂４、掘削孔３の深さ方向に互いに間隔をあけて複数設けられ、かつ土留支保工11から放射状に外向きにのび、それぞれが土留支保工11の周囲の外側地盤１に埋設される複数の外側ロックボルト20、ならびに外側ロックボルト20のそれぞれとカップラーを用いて接合され、土留支保工11から内向きにのび、土留支保工11の内側地盤に埋設される複数の内側ロックボルト20を備えている。【選択図】図１
BASE-ENLARGED FOUNDATION STRUCTURE, COMPOSITE FOUNDATION STRUCTURE OF REINFORCED SOIL AND CONSTRUCTION METHOD THEREOF
拡底基礎構造体および補強地盤の複合基礎構造物ならびにその施工方法
TANAKA YOSHIHIRO (author) / SUGIMOTO MASAKAZU (author) / KODA EIJI (author) / ONO MASAKI (author)
2022-04-15
Patent
Electronic Resource
Japanese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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