National foreword

This Draft for Development is the official English language version of ENV 1997-3 1999. This publication is not to be regarded as a British Standard. It is being issued in the Draft for Development series of publications and is of a provisional nature. It should be applied on this provisional basis so that information and experience of its practical application may be obtained. This document does not have a parallel British Standard and, therefore, it has been published for use in the United...

BSI British Standards Institution

BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity...

Penetrometer Design

Dph Penetrometer

1 P Dimensions and masses of the components of the driving device are given in table 6.1. The following requirements shall be fulfilled - the steel hammer must be conveniently guided to ensure minimal resistance during the drop - the automatic release mechanism shall ensure a constant free fall, with a negligible speed of the hammer when released and no induced parasitic movements in the drive rods - the steel drive head or anvil shall be rigidly connected to the top of the drive rods. 1 P The...

Oed ax qc

Menard Test

A is a correlationfactor estimated on the basis of local experience An example of a correlation is given in annex B.3. 3.7.2 Pile foundations 1 P When the ultimate bearing resistance of piles is evaluated from CPT results according to 7.6.3.3 4 P of ENV 1997-1, calculation rules based on established correlations between the results of static load tests and CPT results shall be used. 2 In annex B.4 an example is given for the assessment of the bearing resistance of a single pile on the basis of...

Section Aa

Dilatometer Probe Rod

1 P The vane shall consist of four rectangular plates fixed at 90 angles to each other, see figure 8.1. The blades shall be parallel with the extension rods and no distortion is allowed. 2 P The relation between the height h and the diameter o of the vane shall be 2,0 for standard vanes. 3 A maximum vane size cfx h of 100 mm x 200 mm for very soft soils and a minimum vane size of 40 mm x 80 mm for dense soils are commonly used for standard vanes. 4 P The blade thickness shall not exceed 3,0 mm...

Aeo x A x Cn x N

X is the correction factor for energy losses due to the rod length in sand Cu is the correction factor for the effective overburden pressure in sand 1 P In addition to the requirements given in 2.6 the report shall include the following information penetration of the sampler under static weight, if significant number of blows required for each 150 mm increment of penetration including the seating drive if the drive is terminated before the full penetration in any of the 150 mm interval record...

Nni

P.O.Box 5059 NL-2600 GB Delft The Netherlands or to a national standards organisation. National application documents 14 In view of the responsibilities of authorities in member countries for the safety, health and other matters covered by the essential requirements of the CPD, certain safety elements in this ENV have been assigned indicative values which are identified by . The authorities in each member country are expected to assign definitive values to these safety elements. 15 Many of the...