水上承台钢板桩围堰在小榄水道特大桥中的运用

钢板桩在地基软弱基坑开挖支护时广泛使用,其具有施工速度快、成本低的特点。该文通过采用自身具备止水措施的FSP-Ⅳ型钢板桩围堰在广东中山市小榄水道特大桥中的运用实例,简要介绍了钢板桩围堰施工的注意事项、插打钢板桩的要点、钢板桩围堰的堵漏、导向架制作、钢板桩围堰的拆除等内容。

Application of Steel Sheet Pile Cofferdam as Water Bearing Sheet in Xiaolan Extra Large Bridge

Steel sheet pile is widely applied in excavation and support of foundation pit with weak foundation for its rapid construction speed and low cost. Based on the application of ESP-Ⅳsteel sheet pile cofferdam with water-proof measures in a large bridge in Zhongshan, Guangdong province, many aspects are introduced briefly, such as the tips of steel sheet pile cofferdam, the key points of steel sheet pile insertion, the leaking stoppage of the cofferdam, the fabrication of guide frame and the demolition of the cofferdam.