L

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Extension of layers Water content

Extension of layers Water content

tApplicability: H = high, M = medium, L = low tApplicability: H = high, M = medium, L = low

4.5.4 Minimum testing

The volume of testing to be carried out depends on the quality of data already available for the site and the extent of prior knowledge of the properties of materials on the site. Where there is extensive experience, minimal amounts of testing are recommended. The amount is also a function of the potential variability in the parameters to be assessed.

Figure 4.14 summarizes Eurocode 7's recommendations Figure 4.14. Number of samples to be tested for the minimum number of in each stratum samples that should be tested in each stratum. Here PSD = particle size distribution; Consistency = Atterberg tests; P/d = particle density determination; and BDD = bulk density determination.

Figure 4.14 summarizes Eurocode 7's recommendations Figure 4.14. Number of samples to be tested for the minimum number of in each stratum samples that should be tested in each stratum. Here PSD = particle size distribution; Consistency = Atterberg tests; P/d = particle density determination; and BDD = bulk density determination.

Figure 4.15 summarizes Eurocode 7's recommendations for the minimum number of tests that should be carried out on samples from each stratum. Here TXL 9 and TXL cu = triaxial tests to determine the effective angle of shearing resistance and undrained shear strength, respectively; DSS = direct shear tests; Eoed = incremental oedometer tests to determine soil modulus; k = permeability tests; and UCS = unconfined compressive strength tests on rock.

Number of tests

TXL (p

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