钻孔灌注桩在不稳定岸坡加固整治中的应用

Application of cast-in-place bored pile in the reinforcement of unstable bank slope

芜湖市中心城区青弋江入长江口段钢筋混凝土防洪墙建设工程由于受城市建成区已建城市建筑和城市道路等设施限制,造成该段防洪堤防部分堤段坡高岸陡,时常发生岸坡塌滑。为彻底解决高陡岸坡滑坡问题,通过岸坡失稳原因分析,方案及措施的比选,采用了钻孔灌注桩综合整治方案对该段防洪堤防实施加固。施工未对城市周边环境及城市河道水生态、水环境产生影响。岸坡加固后运行至今,未发现岸坡失稳现象。钻孔灌注桩对堤防和岸坡加固效果明显,具有广阔的应用前景。

The construction of the reinforced concrete flood wall at the section of Qingyi River River crossing into the mouth of the Yangtze River in the central district of Wuhu city has been restricted by facilities such as urban buildings and urban roads in the urban built-up areas,landslides occur from time to time.In order to solve the problem of high and steep bank slope landslide,through the analysis of the reasons of bank slope instability,the comparison of schemes and measures,the comprehensive regulation scheme of bored pile is adopted to reinforce the flood control dike in this section.The construction has not had the influence to the city periphery environment and the city river water ecology,the water environment.Since the bank slope has been strengthened and operated,no instability of bank slope has been found.Cast-in-place bored pile has obvious reinforcement effect on Levee and bank slope,and has broad application prospect.