杉木桩加固桥墩承台施工方法

规划人工河道需从上海青浦新城区同三国道高架桥下穿过,为确保桥墩基础的稳定安全和河道边坡的牢固,要对该部位的桥墩承台进行保护和加固。加固工程采用水杉原木作为潮湿土层中围护桩,介绍了其施工过程、质量要求、沉降观测及注意事项,加固效果较好。

CONSTRUCTION METHOD OF FIR PILE REINFORCED BRIDGE PIER CAP

The planned artificial channel will pass through the Tong-San （Tongjiang-Sanya） National Highway Viaduct of Qingpu New District of Shanghai. In order to guarantee the stability and safety of bridge pier base, as well as the strength of channel side slope, the bridge pier cap at these positions shall be protected and reinforced. In the reinforcement works, metasequoia log is used as maintenance pile in the wet soil stratum. The construction process, quality requirements, settlement observation and attentions are introduced and favorable reinforcement effects are realized.