研究结论：根据鹦鹉洲长江大桥项目的地质条件，对支挡结构型式进行了研究，通过方案比较，证明 3 号墩采用“桩顶设胸墙单排桩”对大堤进行防护，是最经济、有效的结构型式。且经施工实践检验，证明了防护桩按 m 法，辅以电算，计算桩身截面的弯矩、剪力、变形，以及桩侧土压力的方法，是科学合理的，可以保证其安全性。
Abstract：Research purposes:The Pier 3 of Wuhan Yingwuzhou Yangtze River bridge is located in the toe of the river bank in Wuchang with big slope and big and deep foundation pit of cushion cap．The Yangtze River levee will be destroyed and endanger the safety if using the conventional method to conduct the construction of pile foundation and slope excavation． Based on this situation，it’s necessary to do the research on protect ion of the foundation of Pier 3 to find the most economic and effective protective way and calculation method．
Research conclusions:According to the geological condition of the Yingwuzhou Yangtze River bridge，the study was done on the retaining structure． The application of " single row pile in breastwork on the pile top " in protecting the levee for the Pier 3 was the most economic and effective structural pattern． The construction practice showed application of the m method along with the computing method to calculate the bending moment，shearing force，deformation of the section of the fender pile body and the soil pressure on the pile side was scientific and reasonable，and with this method，the safety of pile could be ensured．
田永强. 武汉鹦鹉洲长江大桥 3 号墩基础大堤防护施工技术[J]. 铁道工程学报, 2012, 29(11): 54-57.
TIAN Yong － qiang. Construction Technology for Levee Protection of Foundation of Pier 3 of Wuhan Yingwuzhou Yangtze River Bridge. 铁道工程学报, 2012, 29(11): 54-57.
Chang Juyou，Wang Zijiang． Issues for Caution on the Vertical Compressive Load Test to Single Pile［J］．Journal of Railway Engineering Society，2009( 8) : 15－17．
2012, Vol. 29 
版权所有 © 2014 《铁道工程学报》编辑部