Laserfiche WebLink
<br /> <br />Figure 5.--The cross section of Lawn Lake dam following failure. <br />Arrow indicates dark organic layer 4 to 5 ft below top of dam. <br /> <br />Table l.--Geotechnical characteristics of the Lawn Lake dam earthfill <br /> <br />[From the Office of the State Engineer, 1983J <br /> <br />Triaxial shear tests (remolded) <br /> <br />Measured <br />property <br /> <br />Sample <br />2L <br /> <br />Sample <br />5L <br /> <br />Sample <br />6L <br /> <br />Ground <br />moraine <br /> <br />Wet density, in pounds <br />per square inch----------- <br />Dry density, in pounds <br />per square inch----------- <br />Moisture, in percent-------- <br />Saturation, in percent------ <br />Voids ratio, in percent----- <br /> <br />Cohesion (effective <br />stress), in pounds <br />per square inch----------- <br />Friction angle (effective <br />stress), in degrees--~---- <br />Liquid limit, in percent---- <br />Plastic limit, in percent--- <br />Plastic index, in percent--- <br /> <br />102,1 115.4 99.5 135,0 <br />87.1 88.9 89.2 <br />17.15 29.8 11.6 <br />52.3 96.1 38.2 <br />.84 .79 .78 <br /> <br />L4 0 0 100 <br />18.4 39.2 32.1 45 <br />40 56 no value <br />34 43 nonplastic <br />6 13 nonplastic <br /> <br />11 <br />