July 2011
Subsoil investigation using integrated methods at Lagos, Nigeria
The application of geophysical and geotechnical methods in subsoil investigation at Magodo phase II Lagos, Nigeria has revealed the presence of five subsurface geo-electric layers. This consists of topsoil, sandy clay, sand, clay and sand. The sand ranges in thickness from 14.33 to 37.3 m while the depth to the sand body varies from 3.35 to over 70 m. The clay layer ranges in depth from 22.4 to 43.89 m while...
July 2011
Rainfall characteristics, runoff rate and traffic flow on gully morphometric parameter growth and soil loss in sand-mined peri-urban, Uyo, Nigeria
The number of rain days, rainfall amount, intensity and erosivity, runoff rates and traffic count influenced soil losses or degradation of gully morphometric parameters of length, width and depth, and semi-circular ratio (SCR) and contributed significantly (p<0.01) to gully initiation and growth in sand-mined peri-urban. 42 gullies in 42.80 m2 were studied, indicating that gully initiation and...
July 2011
A logistic regression analysis of the occurrence of mine accidents in the Burgersfort area in South Africa
In this paper a logistic regression model is developed and used to predict the probability of accidents occurring in mines and to estimate the occurrence of accidents due to machines and falling rocks. We designed a questionnaire and conducted interviews among workers in the mines of Burgersfort area in the Limpopo Province in South Africa. A total of 372 people responded of which 29% were accident victims....
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