Geoelectrical Survey for Engineering Investigation

作     者：A. H. A Teh Saufia Rosli Saad M. M. Nordiana I. N. Azwin Andy A. Bery Noer El Hidayah Ismail Nisa’ Ali Mark Jinmin Y. C. Kiu S. L. Ragu Ragava R. 

作者机构：Geophysics Section School of Physics Universiti Sains Malaysia Penang Malaysia 

出 版 物：《Open Journal of Geology》 (地质学期刊（英文）)

年 卷 期：2013年第3卷第2期

页      面：46-49页

学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学] 

主　　题：Geoelectrical 2D Resistivity Self Potential Engineering 

摘      要：Water seepage erosion has been and remains one of the major engineering problems. However, most engineers will much depend on borehole data and soil test for designing and problem detection. By considering of the cost and destructive method, selection of geoelectrical prospecting would be appropriate. Therefore, two electrical geophysical surveys were carried out in Sekolah Menengah Kebangsaan Dato’ Haji Mohd Nor, Gelugor, Pulau Pinang to map the presence of the unknown underground water sources (saturated zones) and its movement. With the total of seven resistivity lines parallel to each other and self potential (SP) with 5 m × 5 m gridding survey were successfully done. The resistivity result from line 1 (R1) to line 6 (R6) shows the subsurface consist of saturated zones with range between 3 m up to 10 m depth, before it reaches the R7 which is believed as the accumulation zone. Meanwhile, as for SP result it shows the water flow from higher value (north-east) towards the lower value which is mostly at the south area. In conclusion, geoelectrical survey could assist in detecting and solving engineering problems as it proven by the result from each method.