GROUND REINFORCEMENT STRUCTURE, AND CONSTRUCTION METHOD THEREOF
PROBLEM TO BE SOLVED: To provide a highly efficient ground reinforcement structure that may be applied to even a narrow land lot.SOLUTION: A wall body 11 is formed on a rear surface side (a land side) of a steel sheet pile 3. The wall body 11 comprises a ground improvement body 13. The ground improv...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a highly efficient ground reinforcement structure that may be applied to even a narrow land lot.SOLUTION: A wall body 11 is formed on a rear surface side (a land side) of a steel sheet pile 3. The wall body 11 comprises a ground improvement body 13. The ground improvement body 13 is formed by a high-pressure injection and agitation method or the like. A core material 15 is provided in the wall body 11, inside the ground improvement body 13 or in contact with the ground improvement body 13. The core material 15 and the ground improvement body 13 are connected to each other. The core material 15 is installed at a deeper location than the wall body 11 (the ground improvement body 13). Specifically, the wall body 11 (the ground improvement body 13) is formed to a depth of a water bottom 7 while the core material 15 is installed to reach a bearing layer 17, for example. The bearing layer 17 is a non-liquefaction layer.SELECTED DRAWING: Figure 1
【課題】狭い用地でも適用することが可能な、効率の高い地盤補強構造等を提供する。【解決手段】鋼矢板3の背面側(陸側)には、壁体11が形成される。壁体11は、地盤改良体13で構成される。地盤改良体13は、高圧噴射撹拌工法等により形成される。壁体11には、地盤改良体13の内部または地盤改良体13と接するように、芯材15が設けられる。芯材15と地盤改良体13は互いに接合される。芯材15は、壁体11(地盤改良体13)よりも深くまで配置される。具体的には、壁体11(地盤改良体13)は、例えば水底7の深さまで形成され、芯材15は、支持層17に達するように配置される。支持層17は、非液状化層である。【選択図】図1 |
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