上海交通大学学报(自然版) ›› 2013, Vol. 47 ›› Issue (09): 1395-1398.

• 建筑科学 • 上一篇    下一篇

凝固时间和水泥标号对反射波法检测锚杆质量的影响

陈俊栋1,2,葛修润1,刘继滨2,何发亮2   

  1. (1. 上海交通大学 船舶海洋与建筑工程学院, 上海 200240; 2. 中铁西南科学研究院有限公司, 成都 611731)
     
     
  • 收稿日期:2012-11-12 出版日期:2013-09-28 发布日期:2013-09-28
  • 基金资助:

    海洋工程国家重点实验室青年创新基金项目(GKZD01005925)资助

Influence of Hardening Time and Concrete Grade on Rock Bolt Testing with Reflected Wave

CHEN Jundong1,2,GE Xiurun1,LIU Jibin2,HE Faliang2
  

  1. (1. School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China; 2. China Southwest Research Institute Co. Ltd., Chengdu 611731, China)
  • Received:2012-11-12 Online:2013-09-28 Published:2013-09-28

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.
 
 

关键词: 反射波法, 锚杆质量, 检测, 凝固时间, 水泥标号

Abstract:

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.
 

Key words: reflected wave, rock bolt quality, testing, hardening time, concrete grade

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