Record Details
page 18
Digital Collections at BYU
| Field | Value |
|---|---|
| Title | page 18 Results of the Currant Creek Pipeline Impact Loading Study, Central Utah Project, page 18 |
| Coverage | Electronic reproduction; |
| Format | 18 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; 4 ff 0 0 3 1 u S 1 u 0 X 1 .1 2 impact factor profile pro flie file Q tlj W alj ground gr ound aund surface profile 2 FUJ FW P V S 1 ts y c stress tress fress meter locution locotion location Loco lion tion llon numbers 0 7 f i i i 2 3 5 6 7 6 8 concrete slab figure 19 estimated impact factor profile for test 7 run 7 front tire As previously indicated impact factor calculations deal only with the maximum pressures recorded on individual stress meters this method does not per mit mitthe matthe the direct numerical computation of large impacts that might have occurred between stress meters due to vertical tovertical covertical oscillations of the scraper it is obviousthat obvious that the impact factors computed for test 7 runs 7 and 9 as shown on table 1 do not represent the largest impacts that occurred undoubtedly the computed maximum impact factors for these runs would have been greater had a stress meter been located on the slab at the position where the highest pressure occurred this implies that the maximum computed impact factor for the study magnitude 3.0 30 30 is not necessarily the highest that may have occurred during the study A maximum impact factor of 5 was estimated from the approximate impact factor profiles figs 19 and 21 also the frequency at which large impacts occurred may have been greater than the study results imply effect of soil type surface roughness scraper speed soil density and depth of cover on impact factors theeffectof the effect of soiltypeonthe soil type on the impactfactorwas impact factor was investigated ti this involved comparing the maximum impact factors recorded for each run in tests 12 1213 13 and 14 with those for each run in tests 15 16 and 17 11 soil type A covered the slab during tests 12 13 and 14 while soil type B covered the slab during tests 1516 and a nd 17 tests 12 through 17 were all conducted with approximately 2.2 22 22 feet of cover over the slab tests 12 13 15 and 16 had a smooth ground surface while tests 14 and 17 had a rough ground surface table 1 shows the maximum impact factors for tests 12 through 17 impact factors obtained for tests conducted with soil type A covering the slab were not N scraper speed 9.3 93 93 mih 2 J scraper Horz honz horizontal horzontal ontai ontal acceleration 0 tt0 tta I 1 unit Z 4 STRESS SCALE W METER NO lbi0unit W 2 1 25 5 W 2 25 U W 3 25 M 4 50 5 50 6 25 7 25 8 25 0 1 2 3 4 5 TIME SECONDS figure 20 strip chart ohart of stress meter meten readings for test 7 run nun 9 front tire 18 list lisi kisi BEST iest lisi COPY AVAIIABL AVAILAL |
| Identifier | http://cdm15999.contentdm.oclc.org/cdm/ref/collection/WesternWatersProject/id/13001 |
