摘要
利用物探方法探测地下隐伏活动断裂一直是地震安评工作中所研究的热点问题。该文基于隐伏活动断裂的地电特征,对电阻率测深法探测效果的必要条件和充分条件进行了深入分析,并给出了相应的技术措施。通过河北省冀东昌黎断层探测实践表明,在具备开展电阻率测深法的条件下,采用单一的方法是完全可以准确探明隐伏断裂分布的,既能发挥电阻率测深法成熟、高效、受地形影响较小的优势,又可明显降低探测成本。
The detection of underground buried active fault by using geophysical methods has always been the hot problem of earthquake safety evaluation. Based on the geoelectric characteristics of buried active faults, the necessary conditions and sufficient conditions of the effect by resistivity sounding method are deep analyzed, and the corresponding technical measures are given in this paper. The detection prac- tice of Hebei Changli fault shows that in the condition of applying resistivity sounding method, the single method can completely accurate detect the distribution of underground buried fault. It not only plays the advantages of maturation, high efficiency and little impaction from topography, but also can significantly reduce the detection cost.
出处
《勘察科学技术》
2013年第6期57-60,共4页
Site Investigation Science and Technology
关键词
电阻率测深
隐伏断裂
条件性
resistivity sounding
buried fault
conditionity
