移动荷载下基坑支护结构响应与监测分析

Monitoring and Effect of Moving Load to Foundation Excavation Support Configuration

武汉阅马场交通综合整治工程首义广场隧道地处交通繁忙区,受到汽车等移动荷载的影响比较明显,考虑基坑深度、地质条件、交通要求和基坑周边荷载的情况等因素分别采取了不同的支护形式,分别采取了相应的监测手段来监测支护结构的受力和变形规律,通过对排桩+钢支撑支护段施工过程中支护结构的监测与分析,研究了移动荷载对支护结构的响应规律。

Yuemachang Tunnel grade separation works of Wuhan city receives dense traffic, which suffers from the effect of moving load obviously, for example from buses, cars etc, and surrounds with many buildings. Selection of supporting configuration, with the cousideration of change of excavation pit depth, geological environment, traffic demand and situations of the buildings around excavation pit at different area, take different supporting project. In this project, many support styles are used such as retaining wall, pile, bolt and so on. Through monitoring to the support configuration, analyzing the monitor result, evaluating the effect of moving load to the support configuration.