摘要
为了解决公路路基填料中膨胀土胀缩变形问题,该文采用生石灰对填料进行改良,通过对石灰改良土进行击实、胀缩总率及无侧限抗压强度等试验,结合《公路路基施工技术规范》要求确定石灰改良膨胀土的合理掺灰量。其成果为工程实际施工中石灰掺入量的问题提供了有力的证据。
In order to solve the expansion deformation problem of the expanding soil in the roadbed stuffing of highway,the article uses the quicklime to modify the stuffing.Through the experiments of compaction,mass expansion rate and unconfined compressive strength,and according to the requirements of Highway Roadbed Construction Technical Criterion,the reasonable admixture of the lime modified expanding soil is determined,which can provide the powerful evidence for the lime admixture in the engineering construction.
出处
《城市道桥与防洪》
2011年第5期184-186,247-248,共3页
Urban Roads Bridges & Flood Control
关键词
石灰改良
膨胀土
胀缩总率
无侧限抗压强度
lime modifying,expanding soil,mass expansion rate,unconfined compressive strength
