双向水泥搅拌法在高填路堤泥炭质土地基中的应用  

Application of bi-directional cement mixing method in high-filled embankment in peaty soil foundation

作　　者：曾田胜 许发明 谭祥韶 刘吉福 罗吉庆 ZENG Tian-sheng;XU Fa-ming;TAN Xiang-shao;LIU Ji-fu;LUO Ji-qing(Guangdong Highway Construction Co.,Ltd,Guangzhou 510600,China;CRCC Harbour&Channel Engineering Burreau Group Survey&Design Institute Co.,Ltd,Guangzhou 511442,China;Guangdong Communication Planning&Design Institute Co.,Ltd,Guangzhou 510507,China)

机构地区：[1]广东省公路建设有限公司,广东广州510600 [2]中铁建港航局集团勘察设计院有限公司,广东广州511442 [3]广东省交通规划设计研究院股份有限公司,广东广州510507

出　　处：《地基处理》2020年第2期105-110,共6页Journal of Ground Improvement

基　　金：广东省交通运输厅科技项目(科技-2016-01-011)。

摘　　要：采用双向水泥搅拌法加固泥炭土地基中的某高填路堤,通过增加搅拌次数和掺灰量保证了泥炭土地基搅拌桩的成桩质量,通过施工监测和动态设计保证了路堤的稳定性,监测数据表明工后沉降也可满足规范要求,并对双向搅拌桩复合地基联合反压护道方案进行经济效益分析。The bi-directional cement mixing method was used to reinforce a high-filled embankment in peaty soil foundation.The improved quality was ensured by increasing the number of mixing times and the ash content,and the stability of the embankment was guaranteed by construction monitoring and dynamic design.The monitoring results show that the post-construction settlements can meet the requirements of specifications.The economic benefit of the composite foundation of bi-directional cement mixing piles combined with loading berm are analysed.

关 键 词：双向水泥搅拌桩 高填路堤 泥炭质土地基 

分 类 号：TU44[建筑科学—岩土工程]