Application of High Density Resistivity Method and Ground Penetrating Radar to Surveying Fault and Karst Caverns

Abstract: This article by surveying Daqiaotou and Yiwanshui point of WuDang Fault as an example.First, the using effect of high density electrical method and the geological radar in the fault and under the complex structural environment is confirmated. Second, two methods in the fault survey is contrasted.Third, the fault ' s characteristics of apparent resistivity section and the image of radar are analysised and summaryed.At last, according to the actual geological cross section, the natural parameter and the characteristics of different composition fault zone that lens belt, the structure breccia belt and the fault crushed zone are given, and the distribution of apparent resistivity of WuDang Fault are divided into three kinds, respectively be the symmetrical belt-shaped with low resistivity which contact surface obvious, big piece with low resistivity area which contact surface not obvious and symmetry belt-shaped with low resistivity which contact surface obvious.Regarding the application of Karst Caverns survey, this article by applying the massive material that have been confirmated in the process of construction highway of ZhenNing to ShengJingGuan,based on these material that the using effect of high density electrical method and the geological radar in surveying Karst Caverns is confirmated, the using effect of two methods in surveying Karst Caverns is contrasted, the characteristics of apparent resistivity section and the image of radar in surveying different type of Karst Caverns are analysised and summarized.simultaneously ,the karst area are divided into three belts, respectively be the scope of Karst Caverns, the corrosion crevasse scope and the complete adjacent formation, and the corresponding natural parameter and the characteristic are given…
Key words: High-density Resistivity Method; Ground Penetrating Radar ; Fault; Karst Caverns

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