摘要
介绍武汉天兴洲公铁两用长江大桥桥址区的概况及其地质构造与地层岩性,重点评价桥址所在的场地土、场地类别及桥址地基土地震液化和震陷等场地特征,讨论岩溶对大桥的影响,提出设计和施工中需要注意的问题和处理措施。
This paper introduces the general situations,geologic structure and stratum rock characteristics of the site area of Wuhan Tianxingzhou Changjiang River Rail-cum-Road Bridge,mainly evaluates the soil,category of the site where the Bridge is located and the characteristics of the foundation soil seismic liquefaction and seismic subsidence,discusses the influences of karst on the construction of the Bridge and also points out the problems to which attention should be paid and corresponding measures for resolving the problems in the design and construction.