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https://hdl.handle.net/11681/32272| Title: | Performance of Soils under Tire Loads. Report 5, Development and Evaluation of Mobility Numbers for Coarse-Grained Soils |
| Authors: | Green, A. J. (Andrew J.) Mobility and Environmental Systems Laboratory (U.S.) |
| Keywords: | Trafficability Tires Soils |
| Publisher: | U.S. Army Engineer Waterways Experiment Station |
| Series/Report no.: | Technical report (U.S. Army Engineer Waterways Experiment Station);no. 3-666 rept.5 |
| Abstract: | This study examined the effects of tire deflec:tion, tire geometry, wheel load, and soil strength on the performance of coarse-grained soils subjected to moving tire loads. Mathematical expressions were developed that combine the independent tire-soil and system parameters and relate them to the performance coefficients. A combination of independent parameters, was from single-wheel laboratory tests. This expression, ref erred to as the sand mobility number, is shown to account for the combined effects of soil strength ( G)' tire section width and diameter (b and d, respectively), wheel load ( w)' and tire deflection ( o/h) on wheel performance as measured by the performance coefficients. A multiple-pass analysis was conducted to illustrate that performance on the second and third passes relation was not fashion that theusing a relation also could be related to the sand mobility number, although the same as that for the first pass. It was shown in a similar performance of vehicles on coarse-c;rained soils could be predicted based on the sand mobility number. |
| Description: | Technical Report |
| Gov't Doc #: | Technical Report No. 3-666 Report 5 |
| Rights: | Approved for public release; distribution is unlimited |
| URI: | https://hdl.handle.net/11681/32272 |
| Size: | 107 pgs / 10.09Mb |
| Types of Materials: | PDF/A |
| Appears in Collections: | Technical Report |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Technical Report No 3-666 Rept 5.pdf | 10.33 MB | Adobe PDF |  View/Open |