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摘要：
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为探讨特大型桩套箱桥墩基础的护底防冲工程问题,通过实验室试验,分别对墩基防冲护底的方案选择、防护工程结构分层和范围确定、防护材料的稳定及成型情况以及护底工程的防冲效果进行了试验研究。并将试验成果应用在苏通长江大桥护底防冲工程的设计、施工中。施工期为期4年的监测结果证明,实施的防护工程及时、有效,确保了桥墩基础的安全。可为相关大桥采取防护措施提供借鉴。
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In order to discuss the measures of guarding against scour and protecting river bed about large scale pile platform pier foundation,getting across experimentation,this paper studies on selecting scheme,disputing structure,determining the scope of the engineering,understanding the result of preventing scour measures,etc.The result was used in the design and the construction of guarding against scour and protecting river bed in The Su-Tong Bridge in Changjiang River Estuary.The moni-toring results of four years construction show that the protecting engineering is efficient and timely to ensure the security of pier foundation.This paper can provide references for using protective measures by other large-scale bridges.
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基金项目：
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作者简介：
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参考文献：
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[1]卢中一,高正荣.苏通大桥桥墩基础施工图设计阶段局部冲刷试验[R].南京水利科学研究院,2003.
[2]卢中一,高正荣.苏通大桥主桥墩冲刷防护试验研究[R].南京水利科学研究院.2004.
[3]高正荣,黄建维,卢中一.长江河口跨江大桥桥墩局部冲刷及防护研究[M].北京:海洋出版社,2005.
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