Record Details
page 2
Digital Collections at BYU
| Field | Value |
|---|---|
| Title | page 2 Results of the Currant Creek Pipeline Impact Loading Study, Central Utah Project, page 2 |
| Coverage | Electronic reproduction; |
| Format | 2 text/PDF |
| Rights | Brigham Young University; http://lib.byu.edu/about/copyright/generic.php Public Domain Public |
| Language | English; eng; en |
| Relation | Central Utah Project; Western Waters Digital Library; IDAHO A ROCK SPRINGS flarrmig gorge gr e cit reservoir S celt OGDEN L alke aike WYOM ING UTAH SALT LAKE CITY red fleet dom dam tyzack dom dam x yampa VERNAL cy e r PROVO prevo 0 W 0 J 0 figure 1 red fleet dam locati location un map this study indicates that variations in the applied scraper load on the ground surface were the principal cause for the impact factors to deviate from magnitude 1 the variations occur as a result of rapid changes in ground surface elevation characteristic of rough road surfaces and vertical low frequency oscillations of the scraper associated with the scraper traveling at high speed on relatively smooth surfaces these conditions cause the scraper to bounce producing impacts on the ground surface which are directly proportional to the ratio of vertical acceleration or deceleration of the scraper and the acceleration of gravity rough surfaces cause the scrapers to accelerate and decelerate vertically ie bounce large elevation changes and a high frequency of elevation changes compounded with high scraper speeds resulted in large vertical scraper accelerations and decelerations this resulted in large impact factors the observed increase in impact factor with speed on smooth ground surfaces was principally the result of low frequency vertical oscillations of the scraper these oscillations were observed served oo during testing to be a function of speed and surface conditions TESTING PROGRAM test setup A 415 foot long 45 foot wide 2 foot thick reinforced concrete slab was constructed adjacent to the main haul road leading to red fleet dam the slab was constructed so its surface was horizontal and 5 feet below the surface of the nearby haul road figure 2 shows details of the concrete slab eight carlson soil soll stress meters were used to measure the viical ecal t mcal pressure applied to the buried concrete slab as it was traversed by a fully loaded scraper eight recesses were formed in the concrete at 45 foot intervals along the sab slab centerline and the 2 fi desi BEST fist oest ursi rusi ST COPY AVAILABLE |
| Identifier | http://cdm15999.contentdm.oclc.org/cdm/ref/collection/WesternWatersProject/id/13030 |
