CPT: _CPTU1. GEOTEA S.R.L. Via della Tecnica 57/A San Lazzaro di Savena (BO)
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1 468 - San Lazzaro di Savena (BO) Project: CPeT-IT v CPTU data presentation & interpretation software - Report created on: 5/1/16, Project file: \\Server\server\GEOTEA\LAVORI\16\16.8_FA.TA. RICAMBI S.P.A\Prove in sito\cpt\16.8_cptu.cpt CPT: 16.8_CPTU1 Total depth: 15.6 m, Date: 4/11/16
2 468 - San Lazzaro di Savena (BO) Project: CPeT-IT v CPTU data presentation & interpretation software - Report created on: 5/1/16, Project file: \\Server\server\GEOTEA\LAVORI\16\16.8_FA.TA. RICAMBI S.P.A\Prove in sito\cpt\16.8_cptu.cpt CPT: 16.8_CPTU1 Total depth: 15.6 m, Date: 4/11/16
3 468 - San Lazzaro di Savena (BO) Project: CPeT-IT v CPTU data presentation & interpretation software - Report created on: 5/1/16, Project file: \\Server\server\GEOTEA\LAVORI\16\16.8_FA.TA. RICAMBI S.P.A\Prove in sito\cpt\16.8_cptu.cpt CPT: 16.8_CPTU1 Total depth: 15.6 m, Date: 4/11/16
4 Project: San Lazzaro di Savena (BO) CPT: 16.8_CPTU1 Total depth: 15.6 m, Date: 4/11/16 Dissipation Tests Results Dissipation tests Dissipation tests consists of stopping the piezocone penetration and observing porepressures (u) with elapsed time (t). The data are automatic recorded by the field computer and should take place until a minimum of 5% dissipation. The porepressures are plotted as a function of square root of (t). The graphical technique suggested by Robertson and Campanella (1989), yields a value for t 5, which corresponds to the time for 5% consolidation. The value of the coefficient of consolidation in the radial or horizontal direction c h was then calculated by Houlsby and Teh's (1988) theory using the following equation: c h T r I t 5.5 r where: T: time factor given by Houlsby and Teh's (1988) theory corresponding to the porepressure position r: piezocone radius I r : stiffness index, equal to shear modulus G divided by the undrained strength of clay (S u ). t 5 : time corresponding to 5% consolidation Permeability estimates based on dissipation test The dissipation of pore pressures during a CPTu dissipation test is controlled by the coefficient of consolidation in the horizontal direction (c h ) which is influenced by a combination of the soil permeability (k h ) and compressibility (M), as defined by the following: where: M is the 1-D constrained modulus and γ w is the unit weight of water, in compatible units. k h c h γ w /M Tabular results CPTU Borehole Depth (m) (t 5).5 t 5 (s) t 5 (years) G/S u c h (m /s) c h (m /year) M k h (m/s) 16.8_CPTU E E E-9
5 This software is licensed to: CPT name: 16.8_CPTU1 Porepressure u (kpa) Piezocone Dissipation Test: Test: 16.8_CPTU1 Depth: Depth: (m) (m) assumed initial pore pressure, ui u initial dissipation t^.5 (s^.5) 8 3 Depth (m) Pore Pore pressure pressure Pressure (kpa) Legend u penetration Initial dissipation End of dissipation (extrapolated) Initial estimated at t= u = (kpa)
6 468 - San Lazzaro di Savena (BO) Project: CPeT-IT v CPTU data presentation & interpretation software - Report created on: 5/1/16, Project file: \\Server\server\GEOTEA\LAVORI\16\16.8_FA.TA. RICAMBI S.P.A\Prove in sito\cpt\16.8_cptu.cpt CPT: 16.8_CPTU Total depth: m, Date: 4/11/16
7 468 - San Lazzaro di Savena (BO) Project: CPeT-IT v CPTU data presentation & interpretation software - Report created on: 5/1/16, Project file: \\Server\server\GEOTEA\LAVORI\16\16.8_FA.TA. RICAMBI S.P.A\Prove in sito\cpt\16.8_cptu.cpt CPT: 16.8_CPTU Total depth: m, Date: 4/11/16
8 468 - San Lazzaro di Savena (BO) Project: CPeT-IT v CPTU data presentation & interpretation software - Report created on: 5/1/16, Project file: \\Server\server\GEOTEA\LAVORI\16\16.8_FA.TA. RICAMBI S.P.A\Prove in sito\cpt\16.8_cptu.cpt CPT: 16.8_CPTU Total depth: m, Date: 4/11/16
9 468 - San Lazzaro di Savena (BO) Project: CPeT-IT v CPTU data presentation & interpretation software - Report created on: 5/1/16, Project file: \\Server\server\GEOTEA\LAVORI\16\16.8_FA.TA. RICAMBI S.P.A\Prove in sito\cpt\16.8_cptu.cpt CPT: 16.8_CPTU3 Total depth: 15. m, Date: 9/11/16 Cone Operator: Zanna - Cinti
10 468 - San Lazzaro di Savena (BO) Project: CPeT-IT v CPTU data presentation & interpretation software - Report created on: 5/1/16, Project file: \\Server\server\GEOTEA\LAVORI\16\16.8_FA.TA. RICAMBI S.P.A\Prove in sito\cpt\16.8_cptu.cpt CPT: 16.8_CPTU3 Total depth: 15. m, Date: 9/11/16 Cone Operator: Zanna - Cinti
11 468 - San Lazzaro di Savena (BO) Project: CPeT-IT v CPTU data presentation & interpretation software - Report created on: 5/1/16, Project file: \\Server\server\GEOTEA\LAVORI\16\16.8_FA.TA. RICAMBI S.P.A\Prove in sito\cpt\16.8_cptu.cpt CPT: 16.8_CPTU3 Total depth: 15. m, Date: 9/11/16 Cone Operator: Zanna - Cinti
12 Project: San Lazzaro di Savena (BO) CPT: 16.8_CPTU3 Total depth: 15. m, Date: 9/11/16 Cone Operator: Zanna - Cinti Dissipation Tests Results Dissipation tests Dissipation tests consists of stopping the piezocone penetration and observing porepressures (u) with elapsed time (t). The data are automatic recorded by the field computer and should take place until a minimum of 5% dissipation. The porepressures are plotted as a function of square root of (t). The graphical technique suggested by Robertson and Campanella (1989), yields a value for t 5, which corresponds to the time for 5% consolidation. The value of the coefficient of consolidation in the radial or horizontal direction c h was then calculated by Houlsby and Teh's (1988) theory using the following equation: c h T r I t 5.5 r where: T: time factor given by Houlsby and Teh's (1988) theory corresponding to the porepressure position r: piezocone radius I r : stiffness index, equal to shear modulus G divided by the undrained strength of clay (S u ). t 5 : time corresponding to 5% consolidation Permeability estimates based on dissipation test The dissipation of pore pressures during a CPTu dissipation test is controlled by the coefficient of consolidation in the horizontal direction (c h ) which is influenced by a combination of the soil permeability (k h ) and compressibility (M), as defined by the following: where: M is the 1-D constrained modulus and γ w is the unit weight of water, in compatible units. k h c h γ w /M Tabular results CPTU Borehole Depth (m) (t 5).5 t 5 (s) t 5 (years) G/S u c h (m /s) c h (m /year) M k h (m/s) 16.8_CPTU E E E-9
13 This software is licensed to: CPT name: 16.8_CPTU3 Porepressure u (kpa) Piezocone Dissipation Test: Test: 16.8_CPTU3 Depth: Depth: (m) (m) assumed initial pore pressure, ui u initial dissipation u = 36. (kpa) t^.5 (s^.5) Depth (m) Pore Pore pressure pressure Pressure (kpa) Legend u penetration Initial dissipation End of dissipation (extrapolated) Initial estimated at t=
14 Project: San Lazzaro di Savena (BO) CPT: 16.8_CPTU1 Total depth: 15.6 m, Date: 4/11/16 Depth (m) Elev ation:. (m) Description qt Ksbt (m/s) N6 Es Dr Phi ( ) M Go Su (kpa) Su ratio OCR Gamma (kn /m³) C lay & silty clay E C lay E C lay & silty clay E C lay E C lay & silty clay 1..4E C lay E C lay & silty clay E C lay E Tip resistance 1 Ic 3 4 CPeT-IT v CPTU data presentation & interpretation software - Report created on: 5/1/16, Project file: \\Server\server\GEOTEA\LAVORI\16\16.8_FA.TA. RICAMBI S.P.A\Prove in sito\cpt\16.8_cptu.cpt
15 Project: San Lazzaro di Savena (BO) CPT: 16.8_CPTU1 Total depth: 15.6 m, Date: 4/11/16 Summary table of mean values From depth To depth (m) Thickness (m) Permeability (m/s) SPT N6 (blows/3cm) E s D r Friction angle Constrained modulus, M Shear modulus, G O Undrained strength, S U (kpa) Undrained strength ratio OCR Unit weight (kn/m³) E (±5.3E-7) (±1.) (±3.8) (±.) (±.) (±.7) (±6.9) (±6.7) (±.) (±1.7) (±.7) 7.11E (±1.97E-8) (±.4) (±.4) (±.) (±.) (±1.4) (±1.9) (±6.5) (±.5) (±4.) (±.1) 1.9E (±1.44E-7) (±1.) (±6.7) (±.) (±.) (±4.5) (±7.9) (±.3) (±.7) (±4.8) (±.7).14E (±1.6E-8) (±.5) (±.) (±.) (±.) (±1.9) (±.8) (±11.4) (±.1) (±1.) (±.3).4E (±6.46E-9) (±.4) (±.) (±.) (±.) (±1.4) (±1.4) (±5.7) (±.1) (±.5) (±.) 9.4E (±4.97E-9) (±.6) (±.) (±.) (±.) (±3.) (±4.5) (±9.1) (±.1) (±.8) (±.5) 1.83E (±9.78E-9) (±.3) (±.) (±.) (±.) (±1.6) (±1.5) (±9.9) (±.1) (±.7) (±.) 5.79E (±3.73E-9) (±1.7) (±.) (±.) (±.) (±5.1) (±13.4) (±16.1) (±.1) (±.7) (±.8) Depth values presented in this table are measured from free ground surface CPeT-IT v CPTU data presentation & interpretation software - Report created on: 5/1/16, Project file: \\Server\server\GEOTEA\LAVORI\16\16.8_FA.TA. RICAMBI S.P.A\Prove in sito\cpt\16.8_cptu.cpt
16 Project: San Lazzaro di Savena (BO) CPT: 16.8_CPTU Total depth: m, Date: 4/11/16 Depth (m) Elev ation:. (m) Description qt Ksbt (m/s) N6 Es Dr Phi ( ) M Go Su (kpa) Su ratio OCR Gamma (kn /m³) C lay & silty clay E C lay E C lay & silty clay E C lay E C lay & silty clay E C lay E C lay & silty clay E C lay E C lay & silty clay E C lay 1..8E Tip resistance 1 Ic 3 4 CPeT-IT v CPTU data presentation & interpretation software - Report created on: 5/1/16, Project file: \\Server\server\GEOTEA\LAVORI\16\16.8_FA.TA. RICAMBI S.P.A\Prove in sito\cpt\16.8_cptu.cpt
17 Project: San Lazzaro di Savena (BO) CPT: 16.8_CPTU Total depth: m, Date: 4/11/16 Summary table of mean values From depth To depth (m) Thickness (m) Permeability (m/s) SPT N6 (blows/3cm) E s D r Friction angle Constrained modulus, M Shear modulus, G O Undrained strength, S U (kpa) Undrained strength ratio OCR Unit weight (kn/m³) E (±1.36E-7) (±.8) (±.) (±.) (±.) (±1.9) (±6.6) (±4.6) (±.4) (±4.) (±.5) 5.9E (±5.35E-8) (±.6) (±.9) (±.) (±.) (±.) (±5.1) (±8.7) (±.3) (±1.8) (±.6) 7.68E (±6.43E-8) (±.5) (±1.7) (±.) (±.) (±1.7) (±4.7) (±1.4) (±.) (±1.8) (±.4) 4.8E (±.5E-8) (±.6) (±3.4) (±.) (±.) (±.) (±3.7) (±1.7) (±.) (±1.6) (±.) 4.78E (±1.6E-8) (±.4) (±.) (±.) (±.) (±.9) (±.3) (±6.) (±.1) (±.8) (±.1) 3.8E (±1.61E-8) (±.) (±.) (±.) (±.) (±1.1) (±.) (±9.6) (±.1) (±1.) (±.) 7.94E (±8.77E-8) (±.8) (±1.5) (±.) (±.) (±3.8) (±3.7) (±19.4) (±.) (±1.9) (±.4) 9.48E (±1.45E-8) (±.6) (±.6) (±.) (±.) (±3.7) (±4.) (±13.5) (±.) (±1.4) (±.5) 1.1E (±.4E-7) (±1.6) (±37.) (±.) (±.) (±1.6) (±6.) (±3.5) (±.) (±.) (±.4).8E (±4.36E-9) (±1.7) (±.) (±.) (±.) (±5.6) (±1.7) (±1.1) (±.) (±1.) (±.7) Depth values presented in this table are measured from free ground surface CPeT-IT v CPTU data presentation & interpretation software - Report created on: 5/1/16, Project file: \\Server\server\GEOTEA\LAVORI\16\16.8_FA.TA. RICAMBI S.P.A\Prove in sito\cpt\16.8_cptu.cpt
18 Project: San Lazzaro di Savena (BO) CPT: 16.8_CPTU3 Total depth: 15. m, Date: 9/11/16 Cone Operator: Zanna - Cinti Depth (m) Elev ation:. (m) Description qt Ksbt (m/s) N6 Es Dr Phi ( ) M Go Su (kpa) Su ratio OCR Gamma (kn /m³) C lay & silty clay E Silty sand & sandy silt E C lay & silty clay E C lay E Tip resistance 1 Ic 3 4 CPeT-IT v CPTU data presentation & interpretation software - Report created on: 5/1/16, Project file: \\Server\server\GEOTEA\LAVORI\16\16.8_FA.TA. RICAMBI S.P.A\Prove in sito\cpt\16.8_cptu.cpt
19 Project: San Lazzaro di Savena (BO) CPT: 16.8_CPTU3 Total depth: 15. m, Date: 9/11/16 Cone Operator: Zanna - Cinti Summary table of mean values From depth To depth (m) Thickness (m) Permeability (m/s) SPT N6 (blows/3cm) E s D r Friction angle Constrained modulus, M Shear modulus, G O Undrained strength, S U (kpa) Undrained strength ratio OCR Unit weight (kn/m³) E (±1.77E-7) (±1.) (±5.3) (±.) (±.) (±3.8) (±7.7) (±17.5) (±.7) (±3.4) (±.7) 4.4E (±1.34E-7) (±.4) (±1.) (±.8) (±.) (±1.) (±1.4) (±.) (±.) (±.) (±.) 1.3E (±1.8E-7) (±1.) (±3.7) (±.) (±.) (±5.5) (±5.3) (±3.5) (±.8) (±3.8) (±.6) 1.3E (±6.56E-9) (±1.) (±.) (±.) (±.) (±5.8) (±8.6) (±1.3) (±.) (±.8) (±.4) Depth values presented in this table are measured from free ground surface CPeT-IT v CPTU data presentation & interpretation software - Report created on: 5/1/16, Project file: \\Server\server\GEOTEA\LAVORI\16\16.8_FA.TA. RICAMBI S.P.A\Prove in sito\cpt\16.8_cptu.cpt
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