摘要
为了解决岩溶地区城市轨道交通桥梁桩基施工中的溶洞问题,本文通过分析工程地质和水文条件,介绍了岩溶地区城市轨道交通桥梁桩基施工中溶洞处理技术。在鉴于岩溶地区地质复杂、溶洞分布广泛等发展状况和由于溶洞对施工安全和工程质量的重要影响,本文提出了溶洞顶板处理技术、溶洞填充处理技术和溶洞处理效果分析技术。研究结果表明,合理选择溶洞处理技术能有效提高施工安全性和桥梁桩基稳定性。
In order to solve the karst cave problem in the pile foundation construction of urban rail transit bridge in karst area,this paper introduces the karst cave treatment technology in the pile foundation construction of urban rail transit bridge in karst area by analyzing the engineering geological and hydrological conditions.In view of the complicated geology and wide distribution of karst caves in karst areas and the important influence of karst caves on construction safety and engineering quality,this paper puts forward the treatment technology of karst cave roof,filling treatment technology of karst caves and analysis technology of karst cave treatment effect.The research results show that reasonable selection of karst cave treatment technology can effectively improve construction safety and stability of bridge pile foundation.
作者
张少波
胡长令
ZHANG Shaobo;HU Changling(Chengdu Hydropower Construction Engineering Co.,Ltd.of Sinohydro Bureau 7 Co.,Ltd.,Chengdu 611130,China)
关键词
岩溶地区
桥梁桩基
溶洞处理
karst areas
bridge pile foundation
karst cave treatment
