Laserfiche WebLink
' - 11 - <br />1 <br />wet spring of 1980, considerable flows of water were ob- <br /> served within the landslide area above the proposed mine <br /> entries. It is not clear whether these inflows were related <br />' to surface water only or whether they were related to some <br /> unknown aquifers which may lie above the F coal seam. The <br /> hydrological conditions are very important for the stability <br />' of the area, and they will have to be investigated in the <br />' future. <br /> 3.0 STABILITY CONDITIONS <br />t 3.1 LANDSLIDES AT THE SITE <br />' As previously mentioned, it is believed that both the <br /> upper and the lower benches are morphological features which <br /> do not have any relation to larger landslides or other stab- <br /> ility problems. Previous studies by the International Engin- <br /> Bering Company, Inc. and GEO-HYDRO Consulting, Inc. defined, <br />' however, an area of a landslide or several landslides be- <br /> tween both these benches. The extent of these landslide <br />' areas was defined in the GEO-HYDRO reports (1980). <br />' According to our interpretation, the landslide area is <br /> located between the upper and the lower bench. Its upper <br />' boundary coincides with the crest which forms the transition <br /> of this steep slope into the flat slope of the lower bench. On <br /> the west and east sides, the boundaries are not well devel- <br /> oped; their interpretation is only approximate. The land- <br />, slide area is located in a large bowl between two distinct <br />l <br />h <br />d <br />b <br />S <br />l <br />G <br />h <br />d <br />id <br />b <br /> ove <br />u <br />an <br />a <br />ove <br />y <br />vester <br />c <br />tren <br />ing r <br />ges a <br />north-sout <br /> the unnamed creek on the west side of the property. <br />' <br />' <br /> cEaNrw~o ca+w~mw, iNC. <br />