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针对山间盆地断裂复杂困难的特点,以张家口断裂为例,采用电阻率成像法、浅层地震勘探和小折射等综合地质-地球物理方法,结合钻孔资料和地质剖面,查明了张家口断裂的展布情况,同时对山间盆地等复杂地区的地球物理探测方法进行了探讨.研究结果表明张家口断裂呈北西西向展布,主要为逆断层,由西段、中段和东段等三段组成,各段多由北西向和近东西向2组多条次级断层组成;张家口断裂位于覆盖层发育的沟口不连续段上的、可分辨的上断点埋深在60 m以上(事实上更多地段出露地表).
Aiming at the complex and difficult faults in the mountain basin, taking the Zhangjiakou fault as an example, the comprehensive geophysical and geophysical methods such as resistivity imaging, shallow seismic exploration and small refraction are combined to determine the Zhangjiakou fault , And the geophysical exploration methods in complex areas such as the mountain basin are discussed.The results show that the Zhangjiakou fault is distributed in the NWW direction and mainly consists of reverse faults, which are composed of three sections, namely the west section, the middle section and the eastern section , Each of which consists of two subgroups of two sets of faults in the NW and NE direction. The Zhangjiakou fault is located on the discontinuity of the Mizoguchi section with a cover depth of 60 m or more (in fact More sections exposed surface).