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• <br />• <br />Bishops method of stability analysis for toe failure circles. <br />These are shown schematically on Piyure 6. In our analysis <br />we assumed that the surface of the formational material was <br />much deeper than the anticipated failure surface. Basc~d on <br />telephone conversations with Mr. Steve Self we anticipate <br />that the formational material surface may be as deep a:• <br />forty (40) feet. Also, we assumed that the existing purtal <br />will be properly abanduile d. <br />The propo::cd mnt,_r i.,L to b., used as the fill matt r i..I <br />was tested duriny our work for the proposed spoil pil.•. The <br />anticipated foundation soils we rL. tested for thr. st re nyth <br />characteristics under assumed conditions of L'ho materiL,1L. <br />after construction. The post construction condition ansumrd <br />was a saturated fill with a dry dL:nnity of about ]00 prf for <br />calculations. Saturation is the condition when the :;u~ls <br />will be at. their weakest state anti the pore hrc:,surr•s •.+iI1 <br />be yreatest. Thecc ct,aracterist Lc~. were uscll in our ,.i~al}•sis <br />of the fill slopes. 1'he soil characteristic:, used in .,ur <br />analysis are presented below. <br />ANGLE OP <br />INTERNAL FRZC'I'ION COH~•:SZGN <br />(DEGREES) (PS h') <br />Anticipated <br />foundation soils 10 1000 <br />Anticipated <br />fill material 24 3G0 <br />-6- <br />M85021GF. <br />• <br />~am6ert ana ~~,~ociates' <br />GONSULPNG GEOiECNNICAL ENGINEERS AND <br />MATERIAL TESTING <br />