Laserfiche WebLink
- 3 - <br /> <br />previous report), A-6, A-7,~and A-8. A11 six borings were. <br />' advanced by augering in soils and by coring in rock. Their <br />ail locations are indicated on Plate 1, Site Plan. Borings E-1 <br />ii to E-3 are located on the center lines of individual mine <br />entries; borings A-6 to A-8 are located along the alignment <br />of the access road. <br />i, <br />i Logs of the borings are presented in the Appendix A of <br />this report. <br />2. Installation of piezometers in all these holes; stand- <br />' pipe, open-type piezometers were used in all installations. <br />i <br />In addition, ten more piezometer (1-A, 1-B, 2-A, 2-B, 3-A, <br />' 3-C, '4-A, 4-B, 5-A, 5-B) were installed along the center <br />• line of five proposed mine entries, in the portal-adjoining <br />sections. The location of the piezometers is shown on Plate 1, <br />Site Plan; description of their installation, the depths and <br />~ ground water conditions are presented in the Appendix A. <br />3. Point load testing of selected rock types on cores ob- <br />tained from all rock borings drilled within this investigation <br />and on some selected cores from ARCO's exploration borings. The <br />.purpose of point load testing is to obtain approximate nu- <br />merical values of the unconfined compressive strength of the <br />~,~ rock. The results are presented in Appendix A. <br />~ 4. Laboratory testing of selected soil samples to classify <br />j the soils and to obtain suitable input parameters for the analy- <br />ses. The testing results are presented in Appendix A. <br />I <br />• I 5. Stability analyses of selected slopes and structure; <br />on«.e.c m,~an+n ec <br />