高液限土用于路基填料时压实度标准降低的可行性分析
Application of High Liquid Limit Soil to Expressway Subgrade Filling to Reduce Compaction Degree
徐倩茹1
作者信息
- 1. 贵州科达公路工程咨询监理有限公司,贵州 贵阳 550001
- 折叠
摘要
文中结合高速公路应用实践,通过包盖法、互层法、包芯法和土工合成材料法等技术,将高液限土用于路基直接填筑的实际效果进行研究.通过室内试验、现场检测对比不同压实度下高液限土的CBR值、压缩系数、抗剪强度和回弹弯沉值.结果表明,适当降低压实度标准后(3%～5%),高液限土可直接填筑路堤,不影响路基强度,具有显著的经济效益,可为同类工程提供参考.
Abstract
In this paper,combined with the application practice of highway,the practical effect of cladding method,interlayer method,core-cladding method and geosynthetic material method for direct subgrade filling with high liquid limit soil was studied.The CBR value,compression coefficient,shear strength and rebound deflection value of high liquid limit soil under different compaction degree were compared by laboratory test and field test.The results show that the high liquid limit soil can fill the embankment directly without affecting the strength of the subgrade when the compaction degree standard is reduced appropriately(3%～5%),which has significant economic benefits.
关键词
高液限土/高速公路/压实度/路基填料Key words
High liquid limit soil/Highway/Compaction degree/Subgrade fill引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据