摘要
对反射波法检测砂浆锚杆的物理模型进行理论分析,得到了含阻尼系数的波动方程的解,并采用不同的水泥标号和凝固时间对阻尼的影响进行模拟试验.结果表明,在反射波法对锚杆质量检测的影响因素中,砂浆凝固强度对反射波的传播起主导作用,水泥标号的影响次之.
The physical model of rock bolt testing with reflected wave was analyzed and solution to the wave equation with damping coefficient was given. Besides, two analog experiments for different concrete grade and different hardening time were conducted. The experiments indicate that the hardening time has a greater influence while concrete grade has a minor influence on rock bolt testing.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2013年第9期1395-1398,1403,共5页
Journal of Shanghai Jiaotong University
基金
海洋工程国家重点实验室青年创新基金项目(GKZD010059-25)资助
关键词
反射波法
锚杆质量
检测
凝固时间
水泥标号
reflected wave
rock bolt quality
testing
hardening time
concrete grade
