摘要
针对地铁隧道衬砌脱空缺陷检测现状的不足,为了更好地对脱空段空洞的具体形态作出判断,通过试验室模拟,在试件表面制作了不同形状、大小和埋深的空洞缺陷,然后使用探地雷达对其进行检测。在对雷达反射波波形图分析的基础上,进一步进行了2D切片分析和3D透视成像处理,结果更清晰地查明了空洞的位置和尺寸,进一步提高了图像解释的准确度。
According to disadvantages of current detection methods of finding separation and pitting faults of subway tunnel lining, and to make more correct confirmation of specific shapes of cavities in separation and pitting zones, authors did some lab simulation tests, made some cavities and pitting having different shape, size and depth on surfaces of test pieces, and then detected them with a ground probing radar. Analyzing the oscillogram of radar reflection waves, authors made 2D slice analysis and 3D perspective imaging. Results clearly indicated place and size of cavities and improved correct degree of image explanation.
出处
《施工技术》
CAS
北大核心
2005年第6期12-14,共3页
Construction Technology
基金
广东省自然科学基金项目(32023)
关键词
隧道工程
探地雷达
衬砌脱空
tunnel engineering
ground probing radar
separation and pitting of lining
