Laserfiche WebLink
<br /> <br />s <br /> <br /> <br /> <br /> <br />1 <br />2. Spoil Placement Procedures: Based on our field <br />observations and our stability analyses, the current <br />procedure of end dumping will result in a stable dump. <br />'l'ha,re appears to be little advantage in placing the <br />remaining fill in 4-foot lifts. <br />3. Drainage: Based on our field observations and tl~e <br />proposed surface drainage design, we do not anticipate <br />any significant buildup of water within the mass of <br />the dump. <br />' 4. Validity of the Analysis: The key elements of tt~e <br />analyses are tl~e strength parameters employed and <br />' assumptions regarding buildup of water in the spoil <br />mass. The range of strength parameters used is based <br />1 <br />1 <br /> <br /> <br />1 <br /> <br />1 <br />1 <br /> <br />1 <br />on observations of the actual dumped spoil behavior at <br />the site. It is considered that this range of <br />possible strengths is valid and is unlikely to be <br />significantly narrowed or lowered by additional <br />studies. It is conceivable that with the passage of <br />time the strength parameters of a portion of the spoil <br />may decrease due to weathering, but given the climatic <br />conditions at the site it is considered that this <br />would be a surficial change and t}~e bulk of the spoil <br />mass would remain essentially unchanged. The most <br />important element, then, in the analyses is the <br />assumption regarding buildup of water within the mass <br />of the dump. We consider our assumption of no <br />appreciable buildup of water to be correct, but <br />reliable predictions of such a build-up by analytical <br />techniques are very difficult. Therefore, we <br />recommend that, as the final dump configuration is <br />reached, piezometers be installed at various levels <br />within the dump and underlying alluvium/colluvium and <br />Golder Associates <br />