广东云浮高液限土路堤填料改良方案试验研究

对广梧高速公路高液限土进行室内试验研究,对比分析改良前后土体含水率、CBR值、压缩性和无侧限抗压强度物理力学性质,并结合改良方案的技术适用性和经济适用性,重点研究高液限土改良方案影响因素和改良方案的选择。结合理论分析和层次分析,得出最优改良方案为掺5%生石灰改良,研究结果对本地区高液限土改良具有参考意义,并可为类似工程提供借鉴。

Test and Study on Filling Improvement Programs for Guangdong Yunfu High Liquid Limit Soil Embankment

This paper performs indoor test and research on high liquid limit soil on Guangwu Expressway, compares and analyzes the physical and mechanical properties such as soil water content, CBR value, compressibility and no side limit compressive strength before and after improvement. In combination with technical and economic practicalities of improvement programs, the paper highlights the study on the in- fluencing factors and choice of high liquid limit soil improvement programs. Based on theoretical and hi- erarchical analysis the paper obtains the optimized improvement program by mixing into 5% quick lime. The study result in this paper exhibits the reference meaning for improvement of high liquid limit soil in local region, and can provide an example for similar projects.