摘要
通过模型试验与现场试验,论证了轻便触探检测桥涵台背中粗砂的相对密实度的可行性,并与静力触探进行了比较,验证了其合理性。在此基础上,通过简单统计建立了轻便触探锤击数N10与相对密实度Dr之间的经验关系,提出了用轻便触探检测公路桥涵台背回填中粗砂相对密实度的试验方法。
On the basis of lab and field tests, the feasibility of light penetration is proved to test coarse sand relative density at abutment back of bridge-culvert back sand filling. And its reasonability is testified through comparison with static penetration. In addition, the experiment relationship between the blow counts N10 and the relative density Dr is built by simple statistics. A light penetration test method is out forward to test the coarse - sand relative density at abutment back of bridge- culvert back sand filling.
出处
《公路交通科技》
CAS
CSCD
北大核心
2005年第12期67-70,74,共5页
Journal of Highway and Transportation Research and Development
基金
广东省交通厅资助项目(2002-013)
关键词
桥涵台背回填
轻便触探
锤击数
相对密实度
试验方法
Back idling at abutment back of Bridge or culvert
Light dynamic penetrating
Blow counts, Relative density
Test method
