BSI 23/30404074 DC 2023

$13.70

BS EN ISO 22476-16. Geotechnical investigation and testing. Field testing – Part 16. Borehole shear test

Published By	Publication Date	Number of Pages
BSI	2023	52

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PDF Catalog

PDF Pages	PDF Title
1	30404074-NC.pdf
3	ISO_DIS 22476-16 ed.1 – id.78943 Enquiry PDF (en).pdf
7	Foreword
9	1 Scope
11	2 Normative references 3 Terms, definitions and symbols 3.1 Terms and definitions
15	3.2 Symbols and abbreviations
16	4 Equipment 4.1 General 4.2 Phicometer probe
17	4.3 Connection tube line and pulling rods 4.3.1 Connection tube line 4.3.2 Pulling rods
19	4.4 Equipment at ground surface 4.4.1 Pulling device 4.4.2 Pressure-volume control unit (CU) 4.4.3 Regulation system of the traction speed of the probe 4.5 Means of measurement and control 4.5.1 Time
20	4.5.2 Pressure, volume and pulling force 4.5.3 Axial displacement 4.5.4 Display of readings 4.5.5 Dimensions of the shearing zone of the probe 5 Test procedure 5.1 Checks and measurements before insertion of the probe in the ground 5.2 Borehole drilling phase, probe placing phase and zero setting
21	5.3 Minimum spacing between tests
23	5.4 Teeth insertion phase
25	5.5 Shearing phase 5.5.1 Loading program – applied hold pressures in the probe 5.5.2 Successive shearing stages under pressure holds
26	5.5.3 End of the test
27	6 Back-filling of the phicometer borehole 7 Safety requirements 8 Test results 8.1 General 8.2 Shearing curve graph – shear strength parameters φi and ci
28	8.3 Associated graphs 8.4 Adjustment and determination of the in situ angle of friction φi and the in situ cohesion ci 8.5 Examples of adjustment and determination of the in situ angle of friction φi and cohesion ci
30	9 Reporting 9.1 General 9.2 Field report
32	9.3 Test report
33	9.4 Tests log
34	Annex€A (normative) Characteristics of the phicometer probe
35	Annex€B (normative) Calibration, checks and corrections
39	Annex€C (normative) Execution of the PBST borehole
41	Annex€D (normative) Determination of the parameters of shearing
43	Annex€E (informative) Correlations to estimate pLM from other soil resistance parameters qc and N
44	Annex€F (normative) Accuracy and uncertainties
46	Annex G (informative) Examples of adjustment and determination of the in situ angle of friction φi and cohesion ci
51	Annex€H (informative) Example of installation of the PBST equipment
52	Bibliography