摘要
该文介绍了孔内深层强夯法(DDC)的作用机理和技术特点,并针对高原山区机场工程复杂的地质条件,首次在武隆机场试验段项目中开展DDC桩工法实践研究。现场检测复合地基承载力和沉降变形模量等各项技术指标均满足设计要求,DDC桩的抗滑及抗变形能力、地基的承载力得到较大的提高,取得的施工经验和现场参数对完善项目后续设计指标和施工技术措施具有重要的指导意义。
The function mechanism and technical characteristics of the DDC technique were introduced. In view of the complex geological conditions of airport engineering in the plateau mountainous area, the practical study of DDC pile method was carried out for the first time in the test section project of Wulong airport. In the on-site testing, the bearing capacity and settlement deformation modulus of the composite foundation meet the design requirements, and the anti-sliding and anti-deformation capacity of DDC piles and the bearing capacity of the foundation were all enhanced dramatically. The construction experience and site parameters obtained have important guiding significance in improving the follow-up design index and construction technical measures of the project.
出处
《重庆建筑》
2019年第7期46-50,共5页
Chongqing Architecture
关键词
高原机场
孔内深层强夯
地基处理
施工技术
plateau airport
DDC
foundation treatment
construction technology
