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Invention Patent
JP2021185290A 真空圧密管理システム及び地盤改良工事の品質管理方法 审中-公开

真空圧密管理システム及び地盤改良工事の品質管理方法
Abstract:
【課題】真空圧密工法により、経済的かつ効率よく軟弱地盤の強度増加を図り、高品質な改良地盤を得ることの可能な、真空圧密管理システム、及び真空圧密管理システムを用いた地盤改良工事の品質管理方法を提供する。 【解決手段】真空圧密管理システム300において、地盤改良工事の品質管理に用いる計測項目の計測を行う計測装置200と、計測項目の計測結果に基づいて、軟弱地盤Gの沈下量を制御する真空圧密制御装置100と、を備え、計測項目は、少なくとも軟弱地盤Gの沈下量を含み、真空圧密制御装置100は、目標曲線作成部141と、圧密荷重調整部142とを有し、目標曲線作成部141は、軟弱地盤Gの沈下量を経時変化させて目標最終沈下量Sfに到達させるための指標となる、目標沈下曲線を作成し、圧密荷重調整部142は、目標沈下曲線と、適時の沈下量の計測結果とに基づいて、圧密荷重Pを適時調整する。 【選択図】図1
Abstract(English):

To provide a vacuum consolidation control system allowing to acquire improved soil of a high quality by increasing strength of soft soil economically and efficiently by a vacuum consolidation method, and a quality control method of the soil improvement work using the same.SOLUTION: A vacuum consolidation control system 300 has a measuring device 200 for measuring measurement items used for quality control of soil improvement work, and a vacuum consolidation control device 100 for controlling settlement of soft soil G on the basis of a measurement result of the measurement items. The measurement items include at least the settlement of the soft soil G. The vacuum consolidation control device 100 has a target curve forming part 141 and a consolidation load adjusting part 142. The target curve forming part 141 forms a target settlement curve serving as an index for secular changing the settlement of the soft soil G to lead to a target final settlement Sf, and the consolidation load adjusting part 142 timely adjusts the consolidation load P, on the basis of the target settlement curve and the measurement results of the timely settlement.SELECTED DRAWING: Figure 1

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