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280 <br />240 — <br />200 — <br />0 <br />TEST SERIES NUMBER 1: INTERNAL STRENGTH OF <br />EAST CRESSON ORE UNDER WEIRD CONDITIONS <br />MEASURED SHEAR STRENGTHS <br />= 50.0 psi, T wak = 41.0 psi, r LD = 41.0 psi <br />Q = 100.0 psi, r P .,k = 80.7 psi, TLp = 80.7 psi <br />= 150.0 psi, r, = 120.7 psi, TLp = 120.7 psi <br />_ PEAK : ce = 39% T I = 160 psf; R = 1.000 <br />_ _ LD STRENGTH: = 39 c = 160 psf; R = 1.000 <br />/ <br />SHEAR RATE: 0.04 in. /min. / <br />80 — <br />40 — <br />0 <br />GOLDER ASSOCIATES, INC. <br />DIRECT SHEAR TESTING <br />1 1 i 1 1 I 1 1 I I I <br />- 40 80 120 160 200 <br />- NORMAL STRESS (psi) <br />fir. GEOSYNTEC CONSULTANTS <br />SOIL- GEOSYNTHETIC INTERACTION TESTING LABORATORY <br />FILE NO. <br />I I <br />240 280 <br />NOTES: (1) The reported total— stress shear strength parameters of friction <br />angle and cohesion were determined from a best —fit line drown through the <br />test data. Caution should be exercised in using these strength parameters <br />for applications involving normal stresses outside the range of <br />stresses covered by the test series. <br />(2) The large displacement shear strength (r was calculated <br />using the shear force measured at the end of the test. <br />DATE TESTED: 26 TO 27 JUNE 1998 <br />FIGURE NO. <br />PROJECT NO. <br />C -7 <br />_G I 10603 <br />SG198073 <br />DOCUMENT NO. <br />