摘要
为了研究轻型夯施工对桥台涵洞结构物的影响,在河北省张承高速公路某标段工程施工现场进行试验,分析了轻型液压夯实机补强夯实过程的冲击能量对涵洞安全性的影响。使用位移传感器测试涵背水平位移与夯击次数的关系、涵背水平位移与夯点水平距离的关系;并采用位移评价方法评定涵洞的安全性。试验结果表明:在轻型夯产生的冲击荷载作用下涵洞结构是安全的。
In order to study the effect of light tamping on the abutment and culvert, the impact of impact energy on the safety of culvert compacted with lightweight hydraulic tamper was analyzed and tested in the construction site of a section of Zhangjiakou-Chengde expressway in Hebei Province. The displacement sensor was used to test the relationship between the horizontal displacement of the culvert and the number of tamping and the relationship between the horizontal displacement of the culvert and the horizontal distance of the tamping spots. And the safety evaluation of the culvert was conducted using the displacement evaluation method. The results show that the culvert structure is safe under the impact load produced by lightweight tamper.
出处
《筑路机械与施工机械化》
北大核心
2017年第2期118-121,共4页
Road Machinery & Construction Mechanization
基金
河北省交通运输厅2015年科技计划项目(Y-2014052)
关键词
位移传感器
涵背
评价方法
位移变化
displacement sensor
culvert back
evaluation method
displacement change
