摘要
通过室内试验试验模拟现场路基填土失水→吸水的循环过程,研究低液限粉土在经历干湿循环过程中强度随循环周数的变化规律,为预测和防治路基填料性能衰退现象提供参考依据。对素土、石灰改良土和水泥改良土三种土样进行了对比试验研究,结果表明水泥改良效果优于石灰改良。
Basing on the test simulation of water loss and absorption for the subgrade fill in the lab, strength development of the low liquid silt is studied to provide basis for forecasting and preventing sungrade property deterioration. Three kind sample including soil, lime soil and cement soil are contrasted in this test, , the results indicate that the cement soil is the best.
关键词
低液限粉土
干湿循环
稳定性
水泥改良
石灰改良
low liquid limit silt
wetting-drying cycle
stability
cement improvement
lime improvement
