Figure A Example Of A Flow Chart For The Selection Of Ground Investigaton Methods In Different Phases

(1) Table B.1 is an example of derived values, from the value of qc, of the angle of shearing resistance Nl and drained (long term) Young's modulus Em for quartz and feldspar sands, for calculations of the bearing capacity and settlement of spread foundations. (2) This example correlates the mean value of qc in a layer to the mean values of Nl and Em (see subclause 1.3.2). Table B.1 Derived values for the angle of shearing resistance N' and drained Young's modulus Em for quartz and feldspar...

Info

Figure 1.1 Depth factor as function of plate diameter b and depth zfor PLT results obtained with a uniform circular load at the base of an unlined shaft (after Burland 1969) For additional information and examples, see Annex M. (1) This is an example of deriving the coefficient of subgrade reaction ks ks may be calculated from the equation Ap is the selected range of applied contact pressure considered As is the change in settlement for the corresponding change in applied contact pressure )p...

Mh

Figure 3.2 Definitions for a piezocone test (CPTU) (1)P The apparatus shall comprise measuring recording equipment. (2)P The thrust machine shall push the rods into the soil at a constant rate of penetration. It shall be stabilised in such a way that it does not move significantly during the pushing action. (3)P The push rods shall be assembled tightly in order to form a rigid-jointed series with a continuous straight axis. (4) In order to prevent buckling, guides and or casings should be...

Vi

All rock material is converted to soil. The mass structure and material fabric are destroyed. There is a large change in volume, but the soil has not been significantly transported. For additional information and examples, see Annex M For additional information and examples, see Annex M Sample guidelines for groundwater measurements (1) The groundwater level and the pore water pressure in soil and rock have a great influence on many geotechnical questions slope stability, bearing capacity,...

Zzzzzzzzz tzzs

Figure 5.1 Longitudinal cross section of an SPT sampler (dimensions in mm) (1)P The drive rods shall have a stiffness that prevents buckling during driving. Rods with a mass of more than 10,0 kg m mass shall not be used. (1)P The drive weight assembly, of an overall mass not exceeding 115 kg, shall comprise a steel hammer of 63,5 kg 0,5 kg conveniently guided to ensure minimal resistance during the drop an automatic release mechanism which will ensure a constant free fall of (760 10) mm, a...

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...

Field Vane Test FVT

1 Examples of correction factors to obtain the undrained shear strength from the measured value are shown in figures G.1 and G.2, based on local experience and back calculations of slope failures. 2 Correction factors based on figure G.1 may be used in soft normally consolidated clays. 3 Correction factors based on figure G.2 may be used in overconsolidated clays. 4 If more than one method correcting the measured value is used, the value of the correction factor which will give the lowest...

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...

Standard Penetration Test Soil Exploration

Baugrund-Sicherheitsnachweise im Erd- und Grundbau, Teil 100 Berechnung nach dem Konzept mit Teilsicherheitsbeiwerten Manuskript, Januar 1996 DIN 4094-100 Soil verification of earthworks and foundation, Part 100 Analysis in accordance with the partial safety factor concept . Baugrund-Erkundung durch Sondierungen Anwendungshilfen, Erkl rungen Dezember 1990 and supplement 1 Soil exploration by penetration testing aids to application, Bergdahl U., Ottosson E., Malmborg B.S. 1993 Plattgrundl ggning...

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...