Determining the In-Place Density of Soils Using the Sleeve Methodby Vaughan D. Goldsmith, US Bureau of Reclamation, Denver, CO, USA,
Amster K. Howard, US Bureau of Reclamation, Denver, CO, USA,
Document Type: Proceeding Paper
Part of: Advances in Underground Pipeline Engineering
The sleeve method of determining the in-place density was developed by Bureau of Reclamation field personnel for cohesionless, fine, gravel soils used for pipe bedding when other methods could not be used. The density is determined by working a metal sleeve into the soil, removing the soil within the sleeve and determining the dry mass of soil removed per linear inch of the depth of the excavation within the sleeve. The mass of soil per inch is related to the dry density of the in-place material using a predetermined calibration equation. This equation is based on performing a number of sleeve density tests in a container of soil of known density. The calibration equation varies depending on the angularity of the soil particles and the gradation of the soil.
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