Use of Geophysical Methods in Old Coal Mine Site Investigations: Some Case Studies

1995 ◽  
Author(s):  
S. C. J. Dawson ◽  
K. R. Onions ◽  
P. J. Jackson
Keyword(s):  
Case Studies ◽  
Coal Mine ◽  
Geophysical Methods ◽  
Mine Site ◽  
Site Investigations

Evaluation of pollution levels at an abandoned coal mine site in Turkey with the aid of GIS

2011 ◽  
Vol 86 (1) ◽  
pp. 12-19 ◽  
Author(s):  
Firdes Yenilmez ◽  
Nazan Kuter ◽  
Mustafa Kemal Emil ◽  
Aysegul Aksoy
Keyword(s):  
Coal Mine ◽  
Mine Site ◽  
Pollution Levels ◽  
Abandoned Coal Mine

Use of geophysical methods for soil profile evaluation

2011 ◽  
Vol 48 (9) ◽  
pp. 1364-1377 ◽  
Author(s):  
Paul Groves ◽  
Giovanni Cascante ◽  
Dave Dundas ◽  
P.K. Chatterji
Keyword(s):  
Seismic Refraction ◽  
Geophysical Methods ◽  
Electrode Spacing ◽  
Geophysical Investigation ◽  
Multiple Channel ◽  
Site Investigations ◽  
Successful Approach ◽  
Channel Analysis ◽  
Environmentally Sensitive ◽  
Soil Units

A geophysical investigation was performed to evaluate the effectiveness of three geophysical methods (electrical resistivity imaging (ERI), seismic refraction (SR), and multiple-channel analysis of surface waves (MASW)) for geotechnical site characterization in swamps and environmentally sensitive wetland areas. The geophysical test results were verified against the results from borehole and cone penetrometer test logs. The ERI results were best for determining the depth to the glacial till. However, the resolution of the ERI survey was not sufficient to accurately predict the upper lithologies. The electrode spacing (4 m) was instead selected to reliably predict the depth to the till, which in this case varied between 4.6 and 10.7 m. The SR results overestimated the depth to the till because of the presence of a stiffness reversal. The MASW results predicted the depth to the refusal till layer less accurately than the ERI method. However, this method was able to detect the three distinct layers above the till, even though the layer thicknesses were consistently underestimated. The complementary use of geophysical techniques was a successful approach in determining the main soil units and the depth to the competent layer (till) at the site. These methods can be used as a basis for further development to optimize a procedure to reduce the number of boreholes required for conventional site investigations in areas that are environmentally sensitive or where access is restricted.

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