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<br />ELEV SYMBOL DEPTH ROCK FORMATION DESCRIPTION
<br />UNIT
<br />FORMATION 1 - INTERBEDDED SANDSTONE, SILTSTONE
<br />- -_- - -_- AND SHALE''
<br />7800' TYPICAL STRENGTH PARAMETERS, 16=36, C =90 psi;
<br />CONSERVATIVE STRENGTH PARAMETERS, b =32, C =90 psi;
<br />UNIT WEIGHT =150 pcf
<br />•:::: ? ? ??E ?ii ?E??� i ? ?iiE
<br />i..
<br />?i ?aiiti:P?Fetr::
<br />....
<br />.. too
<br />...ic3i°
<br />'•i�ev a W
<br />7700 - -__ -- I
<br />— — — — 200
<br />7600' I•l.t.
<br />1j, .11
<br />h'
<br />.....i
<br />::r..— .::s:r
<br />' !• •i ??Si?i: ` FORMATION 2 - SANDSTONE
<br />7iat BEET HHg O
<br />• ?3�rt.t.;;;;..Y =; TYPICAL STRENGTH PARAMETERS, 0=42, C =86 psi;
<br />:�a•r:::i:: ^• CONSERVATIVE STRENGTH PARAMETERS, 0=40, C =66 psi;
<br />:i..1. F
<br />r�,?•,n....." 300 2 UNIT WEIGHT =147 pcf
<br />.............. S
<br />7500' FORMATION 3 - INTERBEDDED SANDSTONE, SILTSTONE
<br />AND SHALE
<br />TYPICAL STRENGTH PARAMETERS, 0 =36, C -90 psi;
<br />CONSERVATIVE STRENGTH PARAMETERS, 0 =32, C =90 psi;
<br />----- UNIT UNIT WEIGHT =150 pcf; C. =9460 psi;
<br />E-.5 x 10 Psi; V =.19; T.=131 psi
<br />3
<br />... _ _ a0o
<br />7400'
<br />FORMATION 4 — SANDSTONE
<br />iEiii li ri?E ?i TYPICAL STRENGTH PARAMETERS
<br />0=42, C =88 psi;
<br />i .7r CONSERVATIVE STRENGTH PARAMETERS, 0 =40, C -66 psi ;
<br />:r:?r.'ni: ? ?i ?E
<br />UNIT WEIGHT =147 p cf • C. =11270 p si ,
<br />E =1 x 10 psi; v =.3; T.-711 psi;
<br />500 MODULUS OF RUPTURE =1369 psi
<br />7300' _ - - - --
<br />-_ _ -- FORMATION 5 - SHALE
<br />5 TYPICAL STRENGTH PARAMETERS, 0 =34, C =84 psi;
<br />CONSERVATIVE STR21JGT6 PARAMETERS, 6 =27, C =40 psi;
<br />UNIT WEIGHT =156 pcf
<br />600
<br />7200' i3f:i ? ?';r. ?• FORMATION 6 - SANDSTONE
<br />7... TYPICAL STRENGTH PARAMETERS 0 =41 C =83 psi;
<br />a::i? ?� CONSERVATIVE STRENGTH PARAMETERS, 0 =36, C =52 psi;
<br />.»t ?:t.:i?'ii? UNIT WEIGHT =147 pcf; =10518 si-
<br />_tEei?F'jFit73: E =1 x 10 psi; v =.22; T.-545 psi;
<br />MODULUS OF RUPTURE =894 psi
<br />rn•. «:an
<br />••iHrm_
<br />viii'« i ii ? ?ii?i:n:• 700
<br />..................
<br />Sr•••Si: �i«iiii:i:7i:
<br />........................
<br />L7106 M.
<br />ii:t:Yii:i::.�
<br />::a.:�xs.•s::: 90
<br />: ?:S:
<br />eii:iir.:::::: »: w:.•di
<br />7000'
<br />i:.
<br />i«
<br />............
<br />900 FORMATION 7 — INTERBEDDED SANDSTONE, SILTSTONE
<br />_____ AND SHALE
<br />TYPICAL STRENGTH PARAMETERS, 0 =36, C =88 psi;
<br />-.�_ - - -:- CONSERVATIVE STRENGTH PARAMETERS, 0 =32, C =68 psi;
<br />6900" i ?iii :......::: UNIT WEIGHT =150 pcf; C.=9250 psi;
<br />E =.84 x 10 psi; v =.23; T. =634 psi;
<br />i'E'': ........
<br />Siii'? MODULUS OF RUPTURE =688 psi
<br />..I.i I.I•I.I•I•I (•I •I
<br />_i.__ -_
<br />? ??
<br />s i^ 000
<br />I1i�ll�ff��'li _
<br />6800' __ _ — - FORMATION 8 - SANDSTONE
<br />- - -- — TYPICAL STRENGTH PARAMETERS, 6 -41, C =110 psi;
<br />CONSERVATIVE STRENGTH PARAMETERS, 0 =38, C =62 psi;
<br />7 °. UNIT WEIGHT =155 pcf; C. =13998 psi;
<br />I�III E =3.91 x 10 psi; v =.18; T, -1209 psi
<br />I•III lll
<br />FORMATION 9 - F SEAM COAL
<br />__ - - -- TYPICAL STRENGTH PARAMETERS, 0 =28, C =25 psi;
<br />1100 CONSERVATIVE STRENGTH PARAMETERS, )6=24, C =18 psi;
<br />UNIT WEIGHT -80 pcf; C. =2697 psi;
<br />8 E =.35 x 10 psi; T, =137 psi
<br />6700' 9 FORMATION 10 - INTERBEDDED SANDSTONE, SILTSTONE,
<br />AND SHALE
<br />?i TYPICAL STRENGTH PARAMETERS, 0 =39, C =120 psi
<br />4111111111 CONSERVATIVE STRENGTH PARAMETERS, 0 -31, C =56 psi;
<br />UNIT WEIGHT =157 pcf; C, =12458 psi;
<br />E =2.8 x 10 psi; V =.08; T. =1507 psi
<br />FORMATION 11 - E SEAM COAL
<br />1200 TYPICAL STRENGTH PARAMETERS, 0 =28, C =30 psi;
<br />Cli ?l1 ?II_ ?lf ?f
<br />10 CONSERVATIVE STRENGTH PARAMETERS, =25, C =21 psi;
<br />UNIT WEIGHT -80 pcf; C. =3169 psi;
<br />E =.42 x 10 psi; T, =327 psi
<br />6600'
<br />FORMATION 12 - INTERBEDDED SANDSTONE, SILTSTONE,
<br />AND SHALE
<br />....................-c; TYPICAL STRENGTH PARAMETERS, 0 =42, C =145 psi
<br />CONSERVATIVE STRENGTH PARAMETERS, =40, C =143 psi;
<br />i� „jis ° ?. UNIT WEIGHT =161 pcf; Co =15270 psi;
<br />II E =2.92 x 10 psi; To =802 psi
<br />300 FORMATION 13 - D SEAM COAL
<br />12 TYPICAL STRENGTH PARAMETERS, 6-28, C =23 psi;
<br />CONSERVATIVE STRENGTH PARAMETERS, 0 =24, C -18 psi;
<br />UNIT WEIGHT =80 pcf; C, =2460 psi;
<br />6soo' - 13 E =.37 x 10 psi; 0 =210 psi
<br />14
<br />❑jo
<br />FORMATION 14 - SHAL
<br />mg :.
<br />$R H! TYPICAL STRENGTH PARAMETERS
<br />e� ° , =34, C =84 psi
<br />.Ei?.n. ..:.t;c..•tm CONSERVATIVE STRENGTH PARAMETERS, =27, C =40 psi;
<br />UNIT WEIGHT =156 pcf U U Jll'1V U4 IyaD
<br />°
<br />_ J! 15 FORMATI ON 15 - SAND STON E
<br />�i .�' 140
<br />TYPICAL STRENGTH PARAMETERS
<br />=41, C =88 psi
<br />c3,! °I CONSERVATIVE STRENGTH PARAMETERS, 0 =27, C =40 psi;
<br />UNIT WEIGHT =139 pcf; C, =11250 psi;
<br />❑;
<br />"! E =2.83 x 10 psi; T, =830 psi
<br />I 6400'
<br />R' FORMATION 16 - INTERBEDDED SANDSTONE, SILTSTONE,
<br />n
<br />�k AND SHALE
<br />TYPICAL STRENGTH PARAMETERS, 0 =31, C -79 psi
<br />CONSERVATIVE STRENGTH PARAMETERS, =31, C =56 psi; !�� ......•fit ST
<br />- - -_ UNIT WEIGHT =150 pcf; CO-8270 psi; 0
<br />F E ?i�^ina'ttli 16
<br />E=1.83 x 10 psi
<br />iF
<br />; P ; T n =255 psi 14
<br />i� 1500 FORMATION 17 - C SEAM COAL
<br />SS
<br />TYPICAL STRYNGTH PARAMETERS, 0 =28, C =23 psi; yt•.......;•P
<br />17 CONSERVATIVE STRENGTH PARAMETERS, 0 =20, C =11 psi; F�F
<br />UNIT WEIGHT =82 pcf; C. =2440 psi; O�OQ
<br />6300' - - - --
<br />E =.89 x 10 psi; T,=255 psi
<br />FORMATION 16 - INTERBEDDED SANDSTONE, SILTSTONE,
<br />18 AND SHALE
<br />TYPICAL STRENGTH PARAMETERS, 0 =36, C -115 psi
<br />CONSERVATIVE STRENGTH PARAMETERS, 0 =30, C =50 psi; SCANNED UNIT WEIGHT =147 pcf; C, =8548 psi; J
<br />E =1.76 x 10 Psi; =1055 psi S
<br />ROCKY MOUNTAIN
<br />GEOTECHNICAL, INC.
<br />4965 NORTH 30TH STREET • COLORADO SPRINGS, CO 80919 • 590 -SOIL (7645)
<br />Drawn
<br />Oats
<br />r'4
<br />Cl kad
<br />Onto
<br />BEAR MINE No.3
<br />BEAR COAL COMPANY
<br />*SIGN GEOLOGIC
<br />COLUMN
<br />r� u_
<br />Fig. No.
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