Geological survey results of construction works at the Hoa Phu INDUSTRIAL ZONE with 3 boreholes H1, H2, H3 and shows the soil in these areas have the following characteristics: -Soil Layers (1): Brown grey Yellow-spotted Clay, plastic status flows; the soil (2): mud and clay and fine sand, grey-brown to black, flowing status; land class (3a): Clay and less fine sand, dark brown-grey, malleable State flows. These are the weak soil layer, compressive properties of high development, are not conducive to construction. -Soil Layer (3b): Lightning and the little cat, gray brown black, soft plastic status to hard plasticity is the soil that have characterized the average physical weakness. -Soil Layer (4a): fine sand and flour, dark brown, grey, medium-firm status; ground (4b): fine sand and powder, dark brown, grey clay at least, the status of close to class are strictly land with characteristics favourable to the construction. As for the factory load used, medium pile solution, level the soil in pile tip title (4a): fine sand and powder, tight fit, State soil (4b): fine sand and powder, less lightning, the status of close to very tight.
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