. The Bell System technical journal . STRAIN MEASUREMENTS TAKENAT THE INSIDE SURFACE OFTHE CONDUIT STRAIN GAGE CONDUIT. X =1O r2 i =3• =4 STRAIN MEASUREMENTS VS. APPLIED LOAD CONDUIT OUTSIDE DIAMETERCONDUIT WALL THICKNESSHEIGHT OF COVERWIDTH OF TRENCHCONDUIT MATERIALBACKFILL MATERIAL j_ 2000 4000 6000 8000 10000 APPLIED LOAD [lBS] 12000 14000 Fig. 3 — Strain measurements versus applied load. 742 THE BELL SYSTEM TECHNICAL JOURNAL, MAY 1957 ill the laboratory, to various two-point loads (two edge bearing loads).Strain readings were taken during each test.
. The Bell System technical journal . STRAIN MEASUREMENTS TAKENAT THE INSIDE SURFACE OFTHE CONDUIT STRAIN GAGE CONDUIT. X =1O r2 i =3• =4 STRAIN MEASUREMENTS VS. APPLIED LOAD CONDUIT OUTSIDE DIAMETERCONDUIT WALL THICKNESSHEIGHT OF COVERWIDTH OF TRENCHCONDUIT MATERIALBACKFILL MATERIAL j_ 2000 4000 6000 8000 10000 APPLIED LOAD [lBS] 12000 14000 Fig. 3 — Strain measurements versus applied load. 742 THE BELL SYSTEM TECHNICAL JOURNAL, MAY 1957 ill the laboratory, to various two-point loads (two edge bearing loads).Strain readings were taken during each test. Table I lists the tests conducted and the test conditions investigated. TEST RESULTS Field and laboratory measurements obtained from each strain gagewere plotted as a function of the applied load. A typical example for afield measurement is shown in Fig. 3. For this example, as well as forseveral hundreds of similar measurements, a linear relationship betweenthe measured strains and the applied loads could be observed. For eachcase this linear relationship was derived from the data using the methodof least sq
Size: 1505px × 1661px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
