Soil erodibility testing

Details Soil erodibility testing Soil erodibility testing

1990-04-11

1993-03-09

Raevis, Robert

Measuring and testing

Embrittlement or erosion

G01N 1700

Patent

active

051917874

ABSTRACT:
The present invention is drawn to soil erodibility testing utilizing: an outer backwater tank, which during testing is filled with water; an inner liner positioned at least partially within the outer backwater tank for minimizing return turbulence and providing a mount for either a feed tube or pin profiler means, and; a feed tube having a nozzle thereon, which is positioned within the interior of the inner liner. Water is forced through the feed tubed and nozzle, into contact with soil to be tested, so that at least a portion of the soil is removed by erosion. The volume of soil removed by erosion is determined based on the differences between an initial soil profile and an eroded soil profile, which may be measured with a pin profiler means.

REFERENCES:
Hollick, M., 1976, "Towards a Routine Test for the . . . " Trans ASAE, 19(6): pp. 1076-1081.
Hanson, Gregory J., 1988, "Large Scale Testing of Soil Erodibility", Southwest Reg Meeting, ASAE, Lubbock, TX, Apr. 14-15, Paper No. SWR-88-101, 12 pages.
Beltaos, S. et al, Oct. 1974, "Impinging Circular Turbulent . . . " Proc. ASCE, J. Hyd. Div., 101 (HY 10):1313-1328.
Moore, W. L. et al, "Experiments on the Scour . . . " J. of Geophysical Res., vol. 67, No. 4, Apr. 1962, pp. 1437-1446.
Dunn, Irving S., "Tractive Resistance of Cohesive Channels", Jun. 1959, Proc. ASCE, J. Soil Mech and Foundn. Div. 85 (SM3):1-24.
ASCE, 1968, Task Committee on Erosion of Cohesive Materials--Erosion of Cohesive Sediments, Proc. ASCE, J. Hyd. Dir., 94(HY4):1017-1049.

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