Contribution of geoelectrical soundings and pedological wells to the estimation of the tonnage of lateritic gravels of the northern flank of Mount Bangou: implications for road construction

The increasing demands on lateritic gravels in road construction presently make it necessary to quantify the available resources that can be used construction. This study aims estimate tonnage and valorize of north flank Mount Bangou (west Cameroon) Interpretation 48 vertical electrical soundings coupled with 20 pedological wells from five gravel sites was carried out determine thickness level. level obtained geoelectrical is greatest (8.88–12.45 m) compared (1.23–1.98 m), thus shows inadequacy for determination gravels. Thus, resistivity method appropriate studied are characterized by curves type K, HK, Q, QH, KQ, HKH, H, KH. medium-thick (8–36 thick (13–44 zones areas high potential proven reserves at Chenye, Sekakouo, Bamendjou 1, 2, Bangam are, respectively, 3,479,003 t, 1,389,522 5,002,505 839,455 2,663,105 t build, 53,298 m; 226,167 131,574 778,314 m 401,068 road, either as a subgrade layer or sub-base layer.