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 Pressuremeter Modulus

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...

E

Column Plate Calculation

Retaining Removable end nut cap washer Figure 10.1 The main components of a dilatometer apparatus in rocks 2 P probe cylindrical device consisting of an outer flexible membrane mounted on an inner steel core that can be filled with a pressurized fluid so that the membrane can be inflated from the inside and expanded against the wall of the borehole to apply a uniform radial pressure. 3 P membrane stiffness pressure that shall be applied inside the probe to inflate and expand the membrane in...

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...

X X X X X X

Group according to ENV 1997-1, Annex E, Table E.1. 27 The classification of core samples will normally comprise a geological description, the core recovery, the Rock Quality Designation RQD , the degrees of induration, weathering and fissuring. For weathering classification see annex L. In addition to the routine tests in table 2.3 for rocks other tests may be selected for different purposes, e.g. density of grains, wave velocity, Brazilian tests, shear strength of rock and joints, slake...

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...