A.02.17_ar170_Att#3 - ECP and Agadez Ops Agadez Geotech Report_BCOE.pdf

Soil Analysis Report

The tests included DCP readings as well as manual bore hole samples.

Terrain Characteristics One manual bore hole was done on site to extract samples for laboratory tests.

Bore Hole Details A hole of 1.70m was dug which showed a layer of sandy clay 50cm followed by a layer of compacted clay. Samples were collected from this excavation. The tests show that the Plasticity Index is 8.1 and that the percentage of material less than 80microns is 23.30%.

Dynamic Core Penetrometer tests A total of 4 DCP tests were conducted on site. The results show a homogeneous soil.

Therefore, we can see the following bearing capacity:

- 1.6 bars (1.6Kg/cm2) at a depth of 1m relative to the native ground level

- 2.5 bars (2.5Kg/cm2) at a depth of 1.50m relative to the native ground level

- 10.5 bars (10.5Kg/cm2) at a depth of 1.90m relative to the native ground level

Therefore a bearing capacity of 2.5 bars (2.5Kg/cm2) can be used for this site.

In addition we recommend proper grading to avoid water pooling around the foundations.

Niamey, 10/31/2016

Mr Mamadou Djibo