Following is the variation of the field standard penetration number (№60) in a sand deposit: Depth (m) N60 1.5 6 3 8 4.5 9 6 8 7.5 9 13 14 The groundwater table is located at a depth of 6 m. Given: the dry unit weight of sand from 0 to a depth of 6 m is 19 kN/m³, and the saturated unit weight of sand for depth 6 to 12 m is 21.2 kN/m³. Use the relationship given in the equation 0.5 1 CN = σ'o/Pa to calculate the corrected penetration numbers. (Round your answers to the nearest whole number.) Depth (m) N60 (N1) 60 1.5 6 3 8 4.5 9 6 8 7.5 13 9 14

Following is the variation of the field standard penetration number (№60) in a sand deposit: Depth (m) N60 1.5 6 3 8 4.5 9 6 8 7.5 9 13 14 The groundwater table is located at a depth of 6 m. Given: the dry unit weight of sand from 0 to a depth of 6 m is 19 kN/m³, and the saturated unit weight of sand for depth 6 to 12 m is 21.2 kN/m³. Use the relationship given in the equation 0.5 1 CN = σ'o/Pa to calculate the corrected penetration numbers. (Round your answers to the nearest whole number.) Depth (m) N60 (N1) 60 1.5 6 3 8 4.5 9 6 8 7.5 13 9 14

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter3: Natural Soil Deposits And Subsoil Exploration

Section: Chapter Questions

Problem 3.14P

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Following is the variation of the field standard penetration number in a sand deposit: The groundwater table is located at a depth of 6 . Given: the dry unit weight of sand from 0 to a depth of 6 is 18 , and the saturated unit weight of sand for depth 6 to 12 is 20.2 . Using the equation determine the average relative density of sand. (Enter your answer to three significant figures.) Average =
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Following is the variation of the field standard penetration number in a sand deposit: The groundwater table is located at a depth of 6 . Given: the dry unit weight of sand from 0 to a depth of 6 is 16 , and the saturated unit weight of sand for depth 6 to 12 is 22.2 . Estimate an average peak soil friction angle. Use the equation (Enter your answer to three significant figures.)
The following table gives the variation of the field standard penetration number in a sand deposit: The groundwater table is located at a depth of 12 . The dry unit weight of sand from 0 to a depth of 12 is 17.6 . Assume the mean grain size of the sand deposit to be about 0.8 . Estimate the variation of the relative density with depth for sand. Use the equation (Enter your answers to three significant figures.)
Refer to Problem 3.5. Using Eq. (3.22), determine the averagerelative density of the sand.
Repeat Problem 3.6 using Eq. (3.29).
The standard penetration test results of a sand deposit at a certain site are given below in tabular form. The groundwater table in located at a depth of 2 m below the ground surface. The dry and saturated unit weights of sand are 17 kN/m³ and 19.0 kN/m', respectively. For an expected 10.8 earthquake magnitude M = 6 and maximum acceleration amax = 0.1 g, will liquefaction occur? Depth (m) NF (blows/30 cm) 1.5 8 3.0 7 4.5 12 6.0 15 7.5 17 9.0 17
3. Following are the results of a standard penetration test in fine dry sand. N60 Depth (m) 1.5 7 13 3.0 18 4.5 22 6.0 7.5 24 For, the sand deposit, assume the mean grain size, D50, to be 0.26 mm and the unit weight of sand to be 15.5kN/m3. Estimate the variation of relative density with depth using the correlation developed by Cubrinovski and Ishihara. Assume pas100kN/m2. denined friction
A cone penetration test result of a deposit of normally consolidated dry sand are given below. Estimate the drained friction angle of the sand using Kulhawy and Mayne's equation. The unit weight of the sand is 100 pcf. Depth ft 5.0 10.0 15.0 20.0 25.0 30.0 45 38 42 40 Tip resistance of cone, qc psi 300 600 800 1200 1400 1800
Determine the relative density at each depth using attached equation. Assume moderately compressible sand and hence Qc = 1.
Determine the relative density at each depth using attached equation. Assume moderately compressible sand and hence Qc = 1.
P-1 A soil profile is shown in Figure along with the standard penetration numbers in the clay layer. Use provided equations to Dry sand y = 16.5 kN/m³ 1.5 m Groundwater table Sand 1.5 m N60 Ysat = 19 kN/m³ determine the variation of 1.5 m • 8 Cu and OCR and preconsolidation pressure o', with depth. What is the average value of c, and OCR? Clay 1.5 m Ysat = 16.8 kN/m³ * A•8 1.5 m • 9 1.5 m 10 Sand 0.689 0.29N0.72 Pa Си N60 OCR = 0.193 o = 0.47NPa %3D %3D Shahid Chamran University of Abvaz 1 ר ר ררפ