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Jutmir. y 15, 2008 <br />N <br />p <br />in <br />I ?i' <br />P(igr 9 <br />Arid Strain <br />Figure 4. Stress-Strain Curve for Q-Floor Mudstone Sample from 07-G17-CCR from <br />227 ft helo%N Collar <br />Strength estimates from these tests may vary from the in situ rock mass strengths for the <br />tollowim) reasons. <br />• "Pests are performed on small intact samples not containing natural lractures. <br />• Frail samples from disturbed rock are difficult to prepare and generally do not survive for <br />testing. <br />The laboratory test results must he adjusted to account for these two factors. <br />Characterization from the borehole logs are used to adjust these intact rock properties to those <br />expected in situ. Adjustments to strength and deformability properties account for the natural <br />fracturing and induced disturbance from the landslide. <br />Agapito Associates, Inc.