随着我国社会基础设施建设要求的不断提高,道桥工程无论是规模、质量和效率均较以往有了巨大提升,其中,现代化施工技术应用作出了了巨大贡献.桩基施工技术作为道桥施工技术的重要部分,其在夯实道桥基础、增强道桥承重力方面发挥了重要作用.而在实际应用当中,如技术应用不当则可能造成沉降、倾斜及坍塌等病害后果.本文首先阐述了桩基施工技术的重要性,进而指出道桥施工中桩基施工技术的要点,分析实际施工中该技术应用的问题并提出了相应对策,以期促进我国道桥施工技术应用水平的提升.

The test on treating pollution water of Handan by using a two-grade series constructed wetland system.The results show that the constructed wetland has a purifying effect perennial,the removal rate of COD,TN and TP are 25%-65%,29%-94% and 30%-80%.Under the same hydraulic loading,the wetland with relatively better growing plants demonstrated higher pollutants removal efficiency than that with relatively worse growing plants.The removal effect and stability of subsurface flow wetland is better than surface constructed wetland's.The removal effect showed certain seasonal variation,the rate in summer better than in cold winter.