Abstract： AS 8700:2011 pdf download.Execution of prefabricated vertical drains. (c) Fines may intrude through the filter into the core and cause blocking of the channel system. (d) Soil temperature has an influence on the compression resistance and c...

AS 8700:2011 pdf download.Execution of prefabricated vertical drains.

(c) Fines may intrude through the filter into the core and cause blocking of the channel system.

(d) Soil temperature has an influence on the compression resistance and creep of the drains and thus on the discharge capacity.

The required discharge capacity of the flat drain is largely dependent upon the purpose of ground improvement, the consolidation

parameters of the soil, the drain spacing and the depth of drain installation (see Note I).

The discharge capacity shall be high enough to satisfy the design requirements (see Note 2).

The discharge capacity test shall be carried out in accordance with the relevant Standards listed in Table 2.1 and with the

appropriate modifications (see Note 3).

For usual applications, the discharge capacity test shall be performed at the laboratory temperature and then the test report shall be referred to a temperature of 20°C. For applications in tropical environment, the discharge capacity test shall be performed

at a temperature corresponding to the soil temperature at the place of drain installation and then the test report shall be

referred to that specific temperature.

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