利用多源大功率充电法定位复杂岩溶含水通道的方法

doi:10.13278/j.cnki.jjuese.201605206

Abstract

Abstract:

Due to the non-uniformity of spatial distribution of underground karst system, the positions of the underground karst water channels are very difficult to determine by general geophysical investigation method. The general geophysical method is often restricted by terrain and geological conditions, multi-solution is always present during the detection of underground karst water channels, which need to be integrated judegment with several geophysical methods. This paper aims to locate the underground karst water channels quickly and accurately using a high power mise-a-la-masse method. Several charging points were set to verify the reliability of the anomalies of mise-a-la-masse method. Two kinds of line layouts including arc lines with charging point as the center and parallel straight lines were chosen to analyze its advantages and disadvantages. Before data analysis, the normal field correction and Fraser filtering processing were used to deal with the data. The detection of Luotan reservoir complex karst water channels showed that the multi-source high power mise-a-la-masse method could quickly and accurately locate the position and direction of karst water channels in survey zone. The arc lines with charging point as the center could better control the karst water channel direction in the whole survey zone. The parallel straight lines could also position the karst water channels well after the normal field correction and Fraser filtering processing of the data. The ‘multi-source’ method could better identify anomalies effectively. It had been verified by drilling and tracer method, the detecting results of multi-source high power mise-a-la-masse method was accurate and reliable.

Key words: multi-source, high power mise-a-la-masse method, karst water channel, normal field correction, Fraser filtering

CLC Number:

P631.3

Han Kai, Zheng Zhijie, Gan Fuping, Chen Yixiang, Chen Yuling. Determination of Complex Karst Water Channel Using Multi-Source High Power Mise-A-La-Masse Method[J].Journal of Jilin University(Earth Science Edition), 2016, 46(5): 1501-1510.

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Determination of Complex Karst Water Channel Using Multi-Source High Power Mise-A-La-Masse Method

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