地质雷达在公路病害探测中的应用研究
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摘要
为探明某公路沥青路面出现开裂破损原因,在介绍地质雷达工作原理的基础上,采用地质雷达对某公路沥青路面病害进行了探测,并结合弯沉值、密实度与含水率等测试结果,验证了地质雷达探测结果的准确性和有效性。研究结果表明:公路下部存在不密实区、富水松散区以及不均匀沉降变形区,是导致沥青路面开裂破坏的重要原因。
In order to identify the causes for cracking breakage of bituminous pavement of a road,the disease of bituminous pavement of a road is detected by the GPR after description of the operating principle of the GPR,and the accuracy and validity is verified for the detection result obtained by the GPR by deflection value,compactness,moisture content and other testing result. The study results show that an uncompacted area,a water-rich loose area and an uneven settlement and deformation area exist under the road,which are major causes for cracking breakage of bituminous pavement.
In order to identify the causes for cracking breakage of bituminous pavement of a road,the disease of bituminous pavement of a road is detected by the GPR after description of the operating principle of the GPR,and the accuracy and validity is verified for the detection result obtained by the GPR by deflection value,compactness,moisture content and other testing result. The study results show that an uncompacted area,a water-rich loose area and an uneven settlement and deformation area exist under the road,which are major causes for cracking breakage of bituminous pavement.
引文
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[2]于景兰.国内探地雷达的应用与发展[J].地质与勘探,2003,39(S):80-84.
[3]何樵登.地震勘探原理和方法[M].北京:地质出版社,1986:45-50.
[4]敦力民.SIR-10A型探地雷达及应用[J].管道技术与设备,2001(4):45-46.Dun L M.SIR-10A ground penertrating radar[J].Pipeline Technique and Equipment,2001(4):45-46.
[5]周杨,冷元宝,赵圣立.路用探地雷达的应用技术研究进展[J].地球物理学进展,2003,18(3):105-106.Zhou Y,Leng Y B,Zhao S L.Research progress in GPR technology applied in pavement testing[J].Progress In Geophysics,2003,18(3):105-106.
[6]邓居智,方根显.地质雷达在公路路面检测中的应用[J].华东地质学院学报,1999,22(1):40-44.Deng J Z,Fang G X.The application of ground-pentrating radar to highway road surface inspection[J].Journal of East China Geological Institute,1999,22(1):40-44.
[7]孙军,应后强,王国群.探地雷达在公路检测中的应用[J].公路,2001,15(3):23-24.
[8]董鹏.地质雷达在既有线铁路路基陷穴病害工程物探中的应用[J].路基工程,2014(3):172-174.Dong P.Application of GPR in engineering geophysical prospecting for loess sinkhole disease in existing railway subgrade[J].Subgrade Engineering,2014(3):172-174.
[9]叶观宝,宋建.地质雷达在公路隧道短期地质超前预报中的应用[J].勘察科学技术,2010(1):49-51,53.Ye G B,Song J.Application of ground penetrating radar to short term advance geological forecast in highway tunnel[J].Site Investigation Science and Technology,2010(1):49-51,53.
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