Laserfiche WebLink
present beneath the sandy soil for our compr <br />The idealized embankment section is shown or <br />STRENGTH PARAMETERS <br />The main purpose of our laboratory testing <br />program was to obtain shearing strength parameters for <br />the various materials in the foundation and embankment. <br />A summary of the measured strength parameters is pro- <br />vided in the table on the following page. The test data <br />from which most of these parameters were derived is con- <br />tained in the Appendix to this report. <br />We did not perform laboratory tests on the up- <br />stream and downstream shell or the drain materials. For <br />[tic analysis, it was assumed that the strength parameters <br />of the upstream and downstream shell material would be <br />(^;!:entially the same as the silty and clayey sands en- <br />countered in the foundation. The materials are similar <br />in grain size and the assumption is believed conserva- <br />tive. The density of the shell. materials was assumed <br />hlghcr than the foundation soil due to compaction. For <br />the clean sand and gravel materials in the drain, we <br />nnsumed strength parameters based on field observations <br />and experience with similar materials. <br />"AMcs G MOORS <br />