Under The Condition Of Complex Karst Detection Research

Our country vast territory, carbonate rocks are widely distributed, the exposed surface area of about 120 x 104 km2, most of the regional geological structure is complex, climate condition is appropriate, karst development very much. At present, In the infrastructure construction to develop the contemporary China, the karst problem has become a problem can not be ignored; In the transformation of economy is speeding up the contemporary China, the improvement of karst detection precision has become an unavoidable problem. At present, the detection of karst mainly USES the seismic wave method, high density resistivity method, GPR, TEM and CSAMT, CT, etc. However, karst belong to take cover engineering, particularly difficult and complicated to detect. Karst detection exist two complex conditions:1) the complexity of the detection object, namely the complex terrain conditions, boundary conditions are complex. Karst along the crack surface geological structure development, development intensity and water and related supplies, loop, drainage condition, Karst development intensity and different lithology of the strata.2) the complexity of the detection conditions, especially the detection of urban environment, In various design and construction of underground infrastructure construction project, such as metro light rail, urban high-rise buildings, underground commercial street, large parking lot, etc., will inevitably encounter karst problem. Urban space narrow, ground detection environment barrier, most of the cement surface, urban road traffic and pedestrian flow, mechanical vibration and noise generated by these activities and electromagnetic fields can produce strong interference. Limited to detect objects and the complexity of the detection conditions, making the complex conditions of karst detection accuracy is not high, it is hard to meet production needs.This article is mainly aimed at the karst region of high density electrical prospecting, the introduction of K section method to deal with the data, Research K section method is used to deal with the high density electrical prospecting data, effect on karst detection under complicated conditions. This paper is divided into six chapters:First chapter set the basis of a subject, the status quo of karst detection technology as well as the paper research technical route; The second chapter is classifying complex karst detection problem under the condition of introduction; The third chapter is about the principle of high density electrical prospecting are expounded; The fourth chapter to the basic principle of K section method; The fifth chapter is the application instance, the K section method and treatment of high density electrical prospecting data, the effect on karst detection under complicated conditions; Sixth chapter is conclusion and suggestion, through the study affirmed the K section method for complex under the condition of high density electrical method in karst detection data processing effect, Also points out the deficiency, and Suggestions are put forward.