Quality Control of Compacted Earthwork

by Willard J. Turnbull,
J. R. Compton,
R. G. Ahlvin,

Serial Information: Journal of the Soil Mechanics and Foundations Division, 1966, Vol. 92, Issue 1, Pg. 93-104

Document Type: Journal Paper


Quality control of compacted earthwork is the complete process by which the satisfactory construction of an earth structure is gained. There is a growing awareness of the random variation of pertinent soil properties in earthwork construction, such as water content and density, and considerable interest is being shown in the statistical evaluation of these variables. Many earth structures have been constructed in a satisfactory manner without the use of statistical analyses, but because of uncontrolled random variation, there is an element of unrealism in past practice of setting absolute minimum and maximum limits or both, on measured soil properties. Although statistical methods can be a valuable tool in evaluating earthwork compaction quality, they do not provide a complete method for quality control. Typical variations of soil properties that have been experienced in successfully constructed earth fills are presented. These variations are greater than have been thought acceptable by many engineers for satisfactory behavior of structures.

Subject Headings: Structural behavior | Quality control | Earthwork | Statistics | Compacted soils | Soil structures | Soil analysis | Structural control

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