A Case History of Expansive Claystone Damage

by Richard L. Meehan, (M.ASCE), Part.; Earth Sciences Assocs., Palo Alto, Calif.,
Patrick O. Shires, Staff Engr.; Earth Sciences Assocs., Palo Alto, Calif.,
Michael T. Dukes, Staff Engr.; Earth Sciences Assocs., Palo Alto, Calif.,

Serial Information: Journal of the Geotechnical Engineering Division, 1975, Vol. 101, Issue 9, Pg. 933-948

Document Type: Journal Paper


Over the past 7 yr. nearly –1,000,000 damage has been attributed to expansive soil problems within a square mile tract of rolling hills in Menlo Park, Calif. This area is underlain by massively bedded sandstones and claystones of Eocene age. Residential streets, houses, and swimming pools have been damaged by volume changes or shear deformations of claystone bedrock or clay-rich soils derived from the claystone. Individual case histories of damage and specific characteristics of the expansive claystone are evaluated and preventive measures involving policy and regulation as well as engineering design criteria are suggested.

Subject Headings: Case studies | Clays | Expansive soils | Soil deformation | Parks | Sandstone | Residential location | Streets

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