摘要
针对现有隧道衬砌表观病害自动检测结果难以直接使用的情况,提出了一种对自动检测结果再次快速处理的后处理算法。对于剥落、渗漏水等区域形病害,通过合并和删减将相近病害合并为一处,同时删除面积较小病害;对于线形病害,使用Zhang-Suen算法提取病害主干,通过八邻域端点定位算法快速寻找端点,在两条断裂端部分别取数个离散点,依据离散点的坐标拟合出两条裂缝中间缺失部分,从而实现两条断裂的平顺连接。经对5座隧道自动检测数据统计分析,经后处理算法处理后病害数量明显减小,且与实际病害数量相近。这样可大幅减少人工成本,提高处理效率。
In response to the difficulty in directly using the automatic detection results of surface diseases in existing tunnel lining,a post-processing algorithm for rapid reprocessing of automatic detection results had been proposed.For regional diseases such as peeling and water leakage,similar diseases could be merged and deleted into one place,while removing diseases with smaller areas.For line-shape diseases,the Zhang‐Suen algorithm was used to extract the disease trunk,and the Eight Neighborhood Endpoint Positioning algorithm was used to quickly find the endpoint.Several discrete points were taken at the ends of two fractures,and the missing part in the middle of the two fractures was fitted based on the coordinates of the discrete points,thus achieving a smooth connection between the two fractures.After statistical analysis of automatic detection data for 5 tunnels,it was found that the number of diseases significantly decreased after processing with post-processing algorithm,and was close to the actual number of diseases.This algorithm can significantly reduce labor costs and improve processing efficiency.
作者
马学志
张东亮
凌烈鹏
金花
李健超
MA Xuezhi;ZHANG Dongliang;LING Liepeng;JIN Hua;LI Jianchao(Railway Engineering Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China;Zhongtie Science and Technology Development Co.Ltd.,Beijing 100081,China;China Railway Qingzang Group Co.Ltd.,Xining 810000,China)
出处
《铁道建筑》
北大核心
2023年第4期77-80,共4页
Railway Engineering
基金
中国国家铁路集团有限公司科技研究开发计划(K2022G016)。
关键词
铁路隧道
快速后处理
现场试验
隧道衬砌表观病害
裂缝主干提取
多项式拟合
railway tunnel
fast post-processing
field test
surface disease of tunnel lining
extraction of crack trunk
polynomial fitting
