Development and Use of the Modpares Device: Report of the Research Council on Pipeline Crossing of Railroad & Highways, Pipeline Division

Research Council on Pipeline Crossings of Railroads and Highways of the Pipeline Division, ASCE

Serial Information: Journal of the Pipeline Division, 1964, Vol. 90, Issue 1, Pg. 155-180

Document Type: Journal Paper


This report develops the modpares device for measuring the modulus of passive resistance of soil. In an attempt to determine the moduli of passive resistance of a wide range of types of soil, it was found that the soil modulus was not constant. Because the soil modulus was found to be a function of the conduit deflection, a method of successive trials for predicting conduit deflection using modpares curves are outlined.

Subject Headings: Soil modulus | Pipeline crossing | Railroad grade crossings | Highways and roads | Load and resistance factor design | Conduits | Displacement (mechanics) | Soil classification

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