岩溶地区钻孔桩施工方案选择与质量控制

岩溶地质区域在外动力或人为因素下极易发生塌陷,当桥梁桩基础位于岩溶地区时,如何在降低成本的情况下,选择最优的方案并保证施工和结构安全尤为重要,就九江长江公路大桥北引道工程分路互通E匝道桥溶洞区处的桩基施工方案的选择及施工质量控制做简要介绍。

Construction Scheme Selection and Quality Control of Bored Pile in Karst Region

Collapse is prone to take place in karst region by external force or human factors.When the pile foundation for bridge is located in karst region,it is particularly vital as to how to select optimal scheme and ensure construction and structure safety under the condition of lowering cost.The construction scheme selection of pile foundation in karst area of shunt interchange E Ramp Bridge of north approach engineering of Jiujiang Yangtze River Expressway Bridge and construction quality control are introduced briefly.