白垩系河口群膨胀性泥岩地区路基改良施工技术研究

Research on the Construction Technology of Subgrade Improvement in the Expansive Mudstone Area of the Cretaceous Hekou Group

白垩系河口群膨胀性泥岩是一种常见的路基工程地质问题,其膨胀性能给路基工程的设计和施工带来了很大的困难。在路基工程中,选择合适的路基改良技术是解决膨胀性泥岩问题的重要手段。文章通过分析白垩系河口群膨胀性泥岩的地质特征和工程特性,综述了常规和特殊的路基改良技术,结合工程案例进行了分析,并提出了适用于该区域的路基改良技术。

The expansive mudstone in the Cretaceous Hekou Group is a common geological problem in subgrade engineering,and its expansive properties have brought great difficulties to the design and construction of subgrade engineering.In subgrade engineering,selecting appropriate subgrade improvement techniques is an important means to solve the problem of expansive mudstone.Through the analysis of the geological characteristics and engineering characteristics of the expansive mudstone in the Cretaceous Hekou Group,this paper summarizes conventional and special subgrade improvement techniques,analyzes them in combination with engineering cases,and proposes the subgrade improvement technology suitable for this area.