Laserfiche WebLink
I <br /> GEOMATRIX + <br /> TABLE 1 <br /> GUIDE FOR ESTIMATING RELATIVE DENSITY <br /> AND CONSISTENCY BASED ON BLOW-COUNT DATA <br /> Lewis Manor Well Pump Station <br /> Tracy, California <br /> Relative Density of Cohesionless Soils Consistency of Fine-Grained Soils <br /> Penetration Relative Penetration Resistance N <br /> Resistance N (blows/ft) Density (blows/ft) Consistency <br /> 0-4 Very <2 Very soft <br /> loose <br /> 4-10 Loose 2-4 Soft <br /> i <br /> 10-30 Medium 4-8 Firm <br /> dense <br /> �i <br /> . 30-50 Dense 8-15 Stiff <br /> X50 Very 15-30 Very-stiff <br /> dense <br /> X30 Hard <br /> Note: The blow counts indicated in this table apply to standard penetration test (SPT) <br /> samplers. The blowcounts obtained from modified California drive samplers are <br /> generally greater than those obtained by SPT samplers because of the differences in <br /> sampler diameter and surface area. The descriptions of relative densities and <br /> consistencies recorded in the borings logs where based on the estimated SPT blow <br /> count for the sampler used. <br /> i <br /> 11sf31deptdata\Project15000s153131LE WIS-TB I.DOC �I <br />