摘要
结合银川绕城高速西北段非典型软弱土路基处治工程,利用现场监测的方法对非典型软弱土路基的处治措施及沉降规律进行了研究.结果表明:该软弱土压缩性较高、承载力低、渗透性差,路堤施工前必须对其进行预处理;换填砂砾垫层、袋装砂井等载预压、挤密碎石桩是处治该种软弱土路基的有效措施;该软弱路基处理设计合理、施工得当,其经验可供同类工程参考和借鉴.
Through a subgrade treatment engineering example,lacustrine soft soil treatment method and settlement rules of Yinchuan city ring road were studied on the basis of the field monitoring.The results showed that the compression coefficient of the lacustrine soft soil is big,its bearing capacity is low,and it has a poor permeability,the soft soil must be treated before the construction of subgrade.Sand-gravel cushion,bag sand well and broken stone compaction pile are some effective methods to treat this lacustrine soft soil subgrade,and design of the subgrade treatment is reasonable and economical,construction procedure is suitable,and the experience from this engineering is valuable for some other similar projects.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2011年第10期1499-1502,1516,共5页
Journal of Northeastern University(Natural Science)
基金
宁夏回族自治区交通科技项目
高等学校博士学科点专项科研基金资助项目(200801451107)
关键词
路基工程
软土
处治
监测
银川
subgrade engineering
soft soil
treatment
monitoring
Yinchuan
