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REP35645
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REP35645
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Entry Properties
Last modified
8/25/2016 12:12:58 AM
Creation date
11/27/2007 7:11:00 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981047
IBM Index Class Name
Report
Doc Name
APPENDIX 1-B TO BLUE RIBBON COAL COMPANY TR REQUEST MINE BENCH STABILIZATION
Permit Index Doc Type
STABILITY REPORT
Media Type
D
Archive
No
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density sandy clay and clayey sands were encountered. In Test <br />' Bozings No. 5 and No. 6, which were located on the slope, low <br />density colluvium sandy clays and clayey sands were encountered <br />' to approximately 27 feet. In each boring, a weathered claystone <br />- ~ material was encountered below the colluvium, below which <br />- interbedded sandstone and shale was encountered. In Test Borings <br />I No. 7 and No. 8, sandy clay colluvium was encountered at the <br />ground surface to depths of 19 and 29 feet respectively. Coal <br />I seams were observed in Test Borings No. 7 and No. 8. <br />I Piezometers were installed in all the borings except Test Boring <br />I No. 4, with two additional holes drilled without sampling for <br />installation of piezometers. The location of these additional <br />holes are shown on Figure 2. <br />I The location of each soil encountered in the test borings are <br />indicated on the Test Boring Logs presented in Appendix B. <br />I In all cases, drilling was performed without the use of cased <br />I ~ holes. The material remained open during the process of drilling <br />and installation of the piezometers, except in extreme low areas <br />where near surface groundwater was encountered. In these areas, <br />great difficulty was encountered in maintaining the holes during <br />I the installation of the piezometer and some caving occurred in <br />I the bottom portions of the drilled hole. A piezometer was <br />installed in each hole, with a tip at various depths. <br />Installation sheets for each of the piezometers indicating the <br />strata and the various data associated with the installation of <br />I 8 <br />
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