摘要
软土具有低强度、高压缩性、高孔隙比等特点,会造成填筑后的路基发生快速或不均匀沉降,需要对实际沉降进行监测和稳定性分析,预测后续的沉降变化趋势,对累计沉降或速率变化异常值进行预警。以湖北省某高速公路项目为实例,对自动化沉降监测数据分析,同时运用GM(1,1)模型进行动态预测分析研究。结果表明研究对高速公路软土路基的稳定性评估具有重要指导意义。
Soft soil features low strength,high compressibility,and high void ratio,and it would cause rapid and un-even settlement of the subgrade after filling.The actual settlement monitoring,the stability analysis,and predicting the subsequent settlement change trend are necessary to obtain the early warning on the abnormal value of cumula-tive settlement or speed change.An Expressway in Hubei Province is taken as the case to analyze the automatic set-tlement monitoring data,in which the GM(1,1)model is used to carry out the dynamic prediction analysis.It may provide reference for the stability evaluation of soft soil subgrade of expressways.
作者
杨木根
YANG Mugen(Jiangxi Kewei Structure Engineering Technology Co.,Ltd.,Nanchang 330000,China)
出处
《低温建筑技术》
2023年第5期89-92,共4页
Low Temperature Architecture Technology
关键词
高速公路
软土路基沉降
自动化监测
灰色理论
expressway
soft soil subgrade settlement
automatic monitoring
grey system theory
