11/2/2022 0 Comments Bs 5930 Pdf![]() ![]() It also provides guidance on the spacing of investigation points for a variety of structures and the depths to which investigation are to be taken. NOTE 1 BS EN 1997-2:2007, Annex B outlines the geotechnical investigation process through to use of the structure as well as the selection of different investigation methods. The general character and variability of the ground should be established during the preliminary investigation before deciding on the basic principles of the design of the works undertaken for the design investigation the desk study of existing information might provide sufficient high quality data for a preliminary design to be started with confidence. The scope of the ground investigation should be determined by the character and variability of the ground and groundwater, the type of project (geotechnical category) and the amount and quality of existing information. Ground investigations and testing should be carried out in accordance with BS EN 1997-2 and BS EN 1997-1 and the related test standards cited therein. In general, the recommendations in 17.2 to 17.7 apply irrespective of the method adopted, and the term investigation point is used to describe a position where the ground is to be explored by any particular method. ![]() The factors determining the selection of which method or methods is to be used in a particular investigation are discussed in Clause 19 and Clause 20. ![]() 17 Scope of the ground investigation 17.1 GeneralĪ range of methods is available for use in ground investigations these include non-intrusive methods, such as geophysical surveying (see Section 5) and intrusive methods, such as excavations and boreholes (see Section 4 and BS EN ISO 22475-1) and probing (see Section 7). ![]()
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