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K1L D UFF RMR Aggregates, Inc. <br /> U N ❑ E R G R O U N ❑ Rock Failure Analyses and Stabilization Report <br /> E N G I N E E R I N G,I N C. Mid Continent Limestone Quarry <br /> Table 5a. Summary of Required Anchor Stabilization 1,3 <br /> Upper Vertical Horizontal Hole <br /> Limestone Anchorage Spacing Spacing Diameter <br /> Height (ft) (ft) (ft) (in) <br /> 10-15 7 strand 10 1 10 6 <br /> 5-10 7 strand - 15 6 <br /> 0-5 #8 G r. 75 - 30 4 <br /> Table 5b. Summary of Required Anchor Stabilization 1,3 <br /> Upper Bond Free Tail Total Lock off <br /> Limestone Length Length Length length Load <br /> Height (ft) (ft) (ft) 2 (ft) (ft) (kips) <br /> 10-15 1 28 1 15 1 2 1 45 1 235 <br /> 5-10 13 15 2 30 225 <br /> 0-5 3 15 2 20 30 <br /> Notes: <br /> 1.1-engths shown are the minimum lengths required. <br /> 2. Minimum free length per PTI is 15 feet. <br /> 3. Data presented is a preliminary design. Final design of the anchorage system <br /> will need to be performed if required on site. <br /> In order to achieve a higher factor of safety, WE recommends horizontal drains to be installed <br /> through the joint of the upper and lower limestone if active support is required onsite. <br /> 9. LIMITATIONS <br /> This report has been prepared for RMRA for specific application to the Mid Continent Limestone <br /> Quarry project as understood at this time, in accordance with generally accepted geotechnical <br /> engineering practices common to the local area. No other warranty, express or implied, is made. In <br /> the event that changes in the nature, design, or location of the planned construction are made, the <br /> conclusions and recommendations contained in this report should not be considered valid, unless the <br /> changes are reviewed by WE and the conclusions of this report are modified or verified in writing. <br /> Nothing contained in this report shall be construed to create, impose, or give rise to any duty owed <br /> by WE to any individual or entity other than RMRA.This report is for the sole use and benefit of <br /> RMRA and may not be used or relied upon by any other individual or entity without the express <br /> written approval of KUE. <br /> Page 15 <br /> 535 16th STREET,SUITE 620 1 DENVER,CO 80202 1 (303)732-3692 1 WWW.KILDUFFUNDERGROUND.COM <br />