断裂带形成的暗河地段灌注桩施工技术研究  

Research on Filling Piles Foundation Construction Technology in the Underground River Section Formed by Fault Zone

作　　者：谢成器 XIE Chengqi(Yunji Smart Engineering Co.,Ltd.,Shenzhen,Guangdong Province,518000 China)

机构地区：[1]云基智慧工程股份有限公司,广东深圳518000

出　　处：《科技资讯》2024年第18期144-147,共4页Science & Technology Information

摘　　要：在断裂带形成的地下暗河地段施工灌注桩时,根据暗河与暗河周围的地质特征,可采取针对性的处置措施:全套管护壁成桩;采用掺入速凝剂的高标号水下混凝土;先采用低标号混凝土填充,再成孔、灌注桩体混凝土。以一项典型工程为例,对以上3种处置方案的应用进行了分析和研究。实践结果表明:处置措施针对性强,较好地节省了工程造价,缩短了工期,满足了“经济上合理、技术上可行”的基本要求。When conducting filling piles work in the underground river sestion formed by fault zones,correspond-ing disposal measures should be taken according to the geological characteristics of the underground river and its surroundings:Piles with full casing wall protection;High grade underwater concrete mixed with accelerating agent can be used;Low-grade concrete could be first filled,and then pile holes would be bored,pile concrete be filled.A typical project is cited as an example to discuss the application of the above three disposal schemes.The practical re-sults show that the disposal measures are highly targeted,effectively saving the project cost,shortening the construc-tion period,and meeting the basic requirements of"economically reasonable and technically feasible".

关 键 词：灌注桩 断裂带 地下暗河 地下空洞 

分 类 号：U445.551[建筑科学—桥梁与隧道工程]