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' - 1 s - <br />' TABLE 2 PHYSICAL PROPERTIES FOR THE ANALYSES <br /> <br /> SOIL OR ROCK DENSITY FRICTION COHESION <br /> TYPE LBS/FT.3 ANGLE DEGREES LBS/FT.3 <br />' Landslide 115 30.5 300 <br /> Sandstone and <br />' Shale 150 30 500 <br /> Coal 90 30 500 <br /> Underclay 150 12 250 <br /> Waste pile 110 38 0 <br />1 <br />' <br /> The analyses were performed for two sets of hydrological <br />' conditions; as a basic case, it was assumed that the ground <br /> water is present in one of the coal seams with the piezometric <br /> head 40 feet above the coal bottom. Parallel analyses were <br />' performed where the ground water was removed. These dry con- <br />' ditions may represent a case where ground water is not present <br />i <br />hi <br />h <br />l <br />h <br />d <br />b <br /> w <br />t <br />n t <br />ope, or w <br />e s <br />en groun <br />water was removed <br />y the <br /> effects of mining or artifical dewatering. <br /> <br />' 4.2 RESULTS OF ANALYSES <br />' As it was mentioned earlier, the stability analyses have <br /> a very preliminary character. They have been performed in or- <br />' der to develop some better understanding of the stability con- <br /> ditions of the slope under the influence of the waste rock <br /> pile. Detailed results of individual analyses are not presen- <br />' ted within this report as they are of a limited importance <br /> <br />' <br /> GFONYDQO CONA/LTING.INC. <br />