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在城市区域大面积堆筑土方,形成人工山体,山体边坡及其地基的稳定是关注的重点。随着堆筑荷载的逐级施加,山体内剪应力及其地基内应力也随之改变,这种改变易造成边坡滑移、周边结构变形等危险。为此,在奥林匹克森林公园主山堆筑工程中,通过布设变形监测网,对山体施工过程进行实时的监测,根据反馈的变形信息调整堆筑荷载施加的速率及增量,以确保山体及地基的稳定,减小对五环路路基、周边湖体防水及护岸体系的影响。该工程的顺利实施证明通过监测网实时数据反馈以调整施工方案及进度的方法,能够有效保证堆筑工程的施工安全性。
It is the focus of attention that large-scale earthwork building in the urban areas, the formation of artificial mountains, the stability of mountain slopes and their foundations. With the successive application of pile load, the shear stress in the mountain and the stress in the foundation also change accordingly. Such change may easily lead to the danger of the slip of the slope and the deformation of the surrounding structure. Therefore, in the project of building the main mountain of the Olympic Forest Park, the deformation monitoring network is laid to monitor the mountain construction process in real time and adjust the rate and increment of the stacking load according to the feedback deformation information so as to ensure that the mountain and foundation Of the stability, reducing the Fifth Ring Road embankment, the surrounding lake body and the revetment system impact. The smooth implementation of the project proves that the real-time data feedback of the monitoring network can be used to adjust the construction scheme and schedule, which can effectively ensure the construction safety of the piling project.