Laserfiche WebLink
3. ENGINEERING ANALYSES <br />• The engineering analyses focused on the assessment of channel <br />erodibility within the Eckman Park Mine. Hydraulic properties of <br />existing and approved drainage channels were determined and utilized <br />to evaluate the erosion potential of each channel. A comparison of <br />erosion parameters revealed the significance of difference in the <br />approved and existing channels. In addition, specific locations where <br />erosion is apparent or likely to occur were identified for the <br />existing drainage channels. Mitigation measures for the erodible <br />channels have also been recommended and discussed. <br />An analysis of the incipient motion criteria for the existing and <br />approved channels was also proposed as part of this study. This type <br />of analysis is restricted to noncohesive soils and due to the cohesive <br />nature of the reclaimed soils, is not applicable. Amore detailed <br />discussion of incipient motion criteria is provided in a subsequent <br />section. <br />3.1. Data Collection and Review <br />A complete data base was essential to the analyses of channel <br />erodibility. The information required for this study was obtained <br />from existing literature sources and data collected during the field <br />trip to the Eckman Park Mine. The CYCC Rill and Gully Plan and <br />approved permit document were reviewed. Pertinment information <br />obtained from these documents included locations for existing and <br />potential drainage channels and channel specifications for reclaimed <br />u <br />28 <br />