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Modulus of subsoil reaction according to Ménard
Based on the results from experimental measurements (presiometer) of soil response loaded by rigid plate Ménard derived the following expression:
| where: | EM | - | presiometric modulus, if necessary it can be substituted by oedometric modulus of soil |
| a | - | characteristic length depending on a depth of fixed-end structure, according to Ménard assumed at a depth of 2/3 of length of fixed-end structure below final depth of sheeted ditch | |
| α | - | rheological coefficient of soil |
Values of rheological coefficient of soil α:
| Clay | Silt | Sand | Gravel | |
| Overconsolidated | 1 | 2/3 | 1/2 | 1/3 |
| Normally consolidated | 2/3 | 1/2 | 1/3 | 1/4 |
| Non-consolidated | 1/2 | 1/2 | 1/3 | 1/4 |
Literature:
Menard L., 1975, "The Menard Pressuremeter: Interpretation and Application of the Pressuremeter Test Results to Foundations Design", Sols-Soils, No. 26, Paris, France.
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