摘要
基于数值模拟及工程实例,针对钦州保税港区吹沙回填陆域路面塌陷,利用地质雷达探测方法对其进行研究,并就其病害成因机理进行分析。首先采用有限差分数值模拟法,利用地质雷达对吹沙回填陆域地区路基病害探测进行模拟试算,其次利用地质雷达对钦州保税港区路基病害情况进行探测,最后结合测区地质特征及施工工艺对塌陷进行成因分析。结果表明:利用地质雷达法对吹沙回填陆域地区路面病害进行调查的效果良好,这对类似地区应用地质雷达进行路面病害探测提供了理论与实践依据,同时,研究区道路坍塌成因具有沿海吹填陆域地区的特殊性,病害位置与地下管道分布有着显著的对应关系,这为管养单位进行病害处治提供了科学依据。
Based on the numerical simulation and engineering projects,this paper studied the pavement collapse of hydraulic reclamation land area in Qinzhou Free Trade Port Area and its formation mechanism by applying the detection method of ground penetrating radar（GPR）.By using finite difference numerical simulation method,the authors conducted simulation trial on subgrade defects of hydraulic reclamation land area by using GPR.Then they detected the subgrade defects of Qinzhou Free Trade Port Area by using GPR,and analyzed the cause of collapse while taking the geological characteristics of the surveying area and construction technology into account.The results indicated that GPR was useful in the survey of pavement defects in hydraulic reclamation land area,which provided theoretical and practical basis for the application of GPR on detection of pavement defects in similar area.Moreover,it indicated that the genesis of pavement collapse had the particularity of the coastal hydraulic reclamation land area,and the location of the defects were prominently correlated with the distribution of underground pipelines.This provided a scientific basis for management and maintenance organizations in defect control.
作者
姜洪亮
杨庭伟
卢超波
潘隆武
熊春发
JIANG Hongliang;YANG Tingwei;LU Chaobo;PAN Longwu;XIONG Chunfa(Guangxi Transportation Research＆ Consulting Co.,LTD.,Nanning 530007,Guangxi China;Guangxi Key Lab of Road Structure and Materials,Nanning 530007,Guangxi,China)
出处
《矿产与地质》
2018年第3期570-576,共7页
Mineral Resources and Geology
基金
广西自然科学基金项目"基于电阻率量测的膨胀土裂隙演化特征研究"(任务书编号:2015GXNSFBA139221)资助
关键词
路面塌陷
地质雷达
数值模拟
吹沙回填陆域
成因分析
钦州保税港区
pavement collapse
ground penetrating radar
numerical simulation
hydraulic reclamation landarea
cause analysis
Qinzhou Free Trade Port Area
