吉林大学学报(地球科学版) ›› 2018, Vol. 48 ›› Issue (2): 491-500.doi: 10.13278/j.cnki.jjuese.20170125
王焱1, 鹿琪1,2, 刘财1, 佘松盛1, 刘四新1
Wang Yan1, Lu Qi1,2, Liu Cai1, She Songsheng1, Liu Sixin1
摘要: 轻非水相流体(LNAPL)泄漏后会对土壤和地下水造成严重污染,为了准确探测出LNAPL泄漏范围,本文将GPR天线-目标极化的瞬时属性分析方法应用于轻非水相流体污染土壤探测的研究中。采用注入柴油的石英砂砂箱在实验室建立污染土壤模型,利用探地雷达对该污染土壤分别进行天线方位为0°、90°的测量。LNAPL土壤污染物形状、大小、结构并不规则,因此可以通过0°和90°方位天线测量来分析天线-目标极化特征,了解目标物的走向、形状等地下介质信息。通过对预处理后的包含天线-目标极化特征的信息进行瞬时属性分析,LNAPL污染范围可以被清晰地识别,提高了GPR探测能力。
中图分类号:
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