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金属矿山 ›› 2013, Vol. 42 ›› Issue (05): 14-17+30.

• 采矿工程 • 上一篇    下一篇

探地雷达和超声波相结合的爆破损伤实验研究

徐莉丽1,2,蒲传金1,2,肖正学1,2,苏有文3   

  1. 1.西南科技大学环境与资源学院;2.非煤矿山安全技术四川省高等学校重点实验室;3.西南科技大学土木工程与建筑学院
  • 出版日期:2013-05-15 发布日期:2013-06-08
  • 基金资助:

    * 西南科技大学青年基金项目(编号:12zx3114)。

Experiment on Blasting Damage Combining Ground-penetrating Radar with Ultrasonic

Xu Lili1,2,Pu Chuanjin1,2,Xiao Zhengxue1,2,Su Youwen3   

  1. 1.School of Environment and Resource,Southwest University of Science and Technology;2.Non-Coal Mine Safety Technology Key Laboratory of Sichuan Province Colleges and Universities;3.School of Civil Engineering and Architecture,Southwest University of Science and Technology
  • Online:2013-05-15 Published:2013-06-08

摘要: 应用探地雷达和超声波相结合的方法,对混凝土模型不同装药结构进行爆破损伤检测。结果表明:探地雷达用于混凝土爆破损伤定位是可行的,与超声波技术相结合,还可实现爆破损伤的定量评价;混凝土的爆破损伤主要出现在混凝土初始损伤(缺陷)的位置,即混凝土爆破损伤主要是初始损伤(缺陷)“长大”的结果;探地雷达剖面图损伤面积与爆破前后声波速度降低量呈现良好的对应关系。

关键词: 探地雷达, 超声波, 混凝土爆破, 损伤评价

Abstract: The blasting damage tests with different charge structure of the concrete model is made by combining ground-penetrating radar with ultrasonic. The results show that it is feasible to use the ground-penetrating radar for damage location of concrete blast,and the quantitative evaluation of blasting damage can also be obtained together with ultrasound technology. Concrete blast damage mainly appears in the initial location of the damage (defects),and is the result of the initial damage “growing up”. The damage area in ground-penetrating radar cross-sectional view show good correlation with the reduction of the acoustic wave speed before and after blasting.

Key words: Ground-penetrating radar, Ultrasonic wave, Concrete blast, Evaluation of damage