Consolidation of a Layer under a Strip Load

by John T. Christian, Assoc. Prof. of Civ. Engrg.; MIT, Cambridge, MA,
Jan Willem Boehmer, Engr.; Rijkswaterstaat, The Hague, Netherlands; formerly, Res. Engr., MIT, Cambridge, MA,
Philippe P. Martin, Grad. Student; Dept. of Civ. Engrg., MIT, Cambridge, MA,

Serial Information: Journal of the Soil Mechanics and Foundations Division, 1972, Vol. 98, Issue 7, Pg. 693-707

Document Type: Journal Paper


A previously described finite element program is used to solve for the consolidation behavior of an elastic soil under strip loading. A parametric study is made of the effects of loading geometry, drainage, and material constants. The results indicate that the ratio of half width of load to depth of soil for drainage at the top (a/H) has little effect when a/H is greater than 1 and that there is some acceleration of settlement when a/H is smaller. Poisson's ratio of the soil has very little effect. The anisotropic permeability has the largest effect, and its influence is described in two charts. With these provisions, one-dimensional theory can be used in many cases.

Subject Headings: Soil settlement | Load factors | Consolidated soils | Soil properties | Drainage | Finite element method | Elastic analysis | Parameters (statistics)

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