摘要
永武高速公路A11合同段采用高密度电法探测路基溶洞。该文通过高密度电法探测结果和钻探结果比较,发现两种方法得到的溶洞埋深较为接近,而高密度电法探测溶洞规模方面明显有放大现象。物探探测的溶洞高度和溶洞埋深与钻探结果有较好的线性相关性。根据线性公式修正物探结果后与钻探结果较为接近。该修正公式可以提高物探的预测精度。该文的结论对福建龙岩地区高速公路路基岩溶勘察有一定的参考价值和指导意义。
High density resistivity method is used to explore karst cave of roadbed in A11 contract section of Yong-Wu expressway. In the paper, through the results compared high density resistivity method with drilling method,the depths of karst cave obtained by two methods are rather close＇to each other, but the scale of karst cave has obviously enlarged by high density resistivity method. The depth and height of karst cave obtained by two methods present linear correlation. The geophysical prospecting results modified by linear formula are nearly close to that of drilling results, prediction accuracy has been improved. The analyzing conclusion has important reference value and guiding significance to karst exploration of expressway roadbed in Longyan region of Fujian.
出处
《勘察科学技术》
2008年第4期27-28,41,共3页
Site Investigation Science and Technology
关键词
路基
岩溶勘察
高密度电法
线性相关
roadbed
karst exploration
high density resistivity method
linear correlation
