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From page 220... ... F-1 APPENDIX F ANALYSIS OF FALLING WEIGHT DEFLECTOMETER DATA TO CHARACTERIZE SLAB-BASE INTERACTION F.1. Procedure to infer friction coefficient from FWD data The project research included the development of a procedure to use backcalculated properties, in aggregate, to estimate coefficients of friction at each associated FWD test location. Read the entire page →
From page 221... ... F-2 Λ∗ = Λ 𝐸1ℎ1 + 𝐸2ℎ2 (7) The procedure, while straightforward, is iterative and can thus be computationally expensive if not investigated and revised carefully. Read the entire page →
From page 222... ... F-3 Table F-1. Summary of LTPP FWD data used for 1) Read the entire page →
From page 223... ... F-4 extent of the results and the number of sections, it is not feasible to present all the results in this appendix. However the full results for the sections in Table F-1 are available upon request. Read the entire page →
From page 224... ... F-5 4 221 54.3 1 36 5.02E+08 7.40E+08 8.1 4.2 15 6.897 4 221 54.3 3 36 6.78E+08 1.08E+09 8.1 4.2 15 5.366 4 222 5.5 1 72 3.92E+08 9.03E+08 8.6 3.9 15 1.634 4 222 5.5 3 100 3.59E+08 6.36E+08 8.6 3.9 15 3.166 26 222 124.1 1 36 3.93E+08 4.97E+08 8.3 4.2 15 12.306 26 222 124.4 3 36 2.66E+08 5.05E+08 8.3 4.2 15 3.162 26 222 147.5 1 36 3.38E+08 4.14E+08 8.3 4.2 15 14.601 26 222 147.5 3 36 2.18E+08 3.39E+08 8.3 4.2 15 5.548 37 3011 20.1 1 60 7.42E+08 1.32E+09 10.1 4 50 2.525 37 3011 20.1 3 60 5.00E+08 1.08E+09 10.1 4 50 1.536 49 3015 6.7 1 36 7.18E+08 1.80E+09 11.2 7.6 50 2.749 49 3015 6.7 3 36 1.09E+09 1.83E+09 11.2 7.6 50 7.398 49 3015 61.3 1 48 4.59E+08 1.05E+09 11.2 7.6 50 3.384 49 3015 61.3 3 48 7.53E+08 1.13E+09 11.2 7.6 50 10.356 In addition, it is also worthwhile to call into question the backcalculated modulus (Epcc) of different base types, particularly those values of Epcc for pavement sections within close proximity to each other (most notably the SPS-2 sections) Read the entire page →
From page 225... ... F-6  The analysis does not support the underlying hypothesis that slab-base friction decreases with time. Thus, the project research can state with confidence that the hypothesis that slab-base friction decreases with time cannot be supported using 1) Read the entire page →
From page 226... ... F-7 Figure F-1. Loss of slab-base friction over time, coefficients of friction inferred from backcalculated FWD edge load data for two sites along LTPP Section 8-3032 Read the entire page →
From page 227... ... F-8 Figure F-2. Changes in slab-base friction over time, coefficients of friction inferred from backcalculated FWD edge load data for two sites along LTPP Section 8-3032 Read the entire page →
From page 228... ... F-9 Figure F-3. Changes in slab-base friction over time, coefficients of friction inferred from backcalculated FWD center and edge load data at a single site (128.9) Read the entire page →
From page 229... ... F-10 F.5. Summary table of inferred friction analysis Table F-3. Read the entire page →
From page 230... ... F-11 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 231... ... F-12 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 232... ... F-13 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 233... ... F-14 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 234... ... F-15 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 235... ... F-16 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 236... ... F-17 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 237... ... F-18 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 238... ... F-19 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 239... ... F-20 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 240... ... F-21 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 241... ... F-22 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 242... ... F-23 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 243... ... F-24 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 244... ... F-25 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 245... ... F-26 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 246... ... F-27 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 247... ... F-28 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 248... ... F-29 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 249... ... F-30 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 250... ... F-31 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 251... ... F-32 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 252... ... F-33 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 253... ... F-34 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 254... ... F-35 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 255... ... F-36 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 256... ... F-37 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 257... ... F-38 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 258... ... F-39 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 259... ... F-40 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 260... ... F-41 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 261... ... F-42 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 262... ... F-43 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 263... ... F-44 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 264... ... F-45 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 265... ... F-46 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 266... ... F-47 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 267... ... F-48 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 268... ... F-49 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 269... ... F-50 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →
From page 270... ... F-51 State Code Section ID Date J1 or J3? Location Time Drop Height Slab Thick Base Thick K Value Radius of Relative Stiffness Mu Beta_0 D_eff Lambda Lambda* Read the entire page →

From page 220...

... F-1 APPENDIX F ANALYSIS OF FALLING WEIGHT DEFLECTOMETER DATA TO CHARACTERIZE SLAB-BASE INTERACTION F.1. Procedure to infer friction coefficient from FWD data The project research included the development of a procedure to use backcalculated properties, in aggregate, to estimate coefficients of friction at each associated FWD test location.