BS 5930:1981 rightly noted that the properties of very coarse soils (i.e. boulders and cobbles) cannot be reliably estimated from boreholes-trial pits or exposures must be used.
The UK standard covering this area is BS 5930 1999 (Section 6) and it's been republished in December 2007 to remove any conflict with the above new standards.
... the soil becomes highly disturbed and can only be regarded as a Class 3 sample as defined by BS 5930: 1981. Therefore the samples obtained are only suitable for classification, ...
BS 5930 : 1999 Code of Practice for Site Investigations - clause 12.6 "Although no hard and fast rules can be laid down, a relatively close spacing between points of exploration, ...
The weathering classification adopted is a simplification of that included in BS 5930 as follows: Fresh - Unchanged from original state Slightly weathered- Discoloured and weakened only along discontinuities Moderately weathered- < 50% of rock mass is discoloured and weakened.
References : BS 5930 : 1999 : Code of practice for site investigations (Formerly CP 2001) (British Standards Institution) QJEG : 1972 : ...
BS 5930 (1999) correctly notes, may only be of interest to engineers under special circumstances. Geological discussion on the correct nomenclature can be extremely
... A Short Guide 6 Sampling Ground and Groundwater The BS 5930:1999 identifies four main types of sampling: a) taking disturbed samples from excavating equipment and the drill tool in the course of excavation or boring; b) ...
These are namely BS EN ISO 14688-1:2002, BS EN ISO 14688-2:2004 and BS EN ISO 14689-1:2003). ... Field identification and description of soils (Part of Table 13: BS 5930 :1999) ...
Foundations for reciprocating machines * BS 5930:1999 Code of practice for site investigations. Existing British Soil Testing Standards * BS 1377:1990 Methods of test for soils for civil engineering purposes * 9 Parts of BS 1377: ...
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