1. For a constant head laboratory permeability test on a fine sand, the following values aregiven:Length of specimen, L = 10 inchesDiameter of specimen = 2.5 inchesHead difference, h = 22 inchesWater collected in 2 minutes = 0.044 in%3DSoil specimenThe void ratio of the specimen is 0.34.Determine the conductivity, k, of the soil in in/min.b.Ps nea.Determine the discharge velocity through the soil inin/min.Determine the seepage velocity in in/min.MeasuringhurketC.

Answered: Image /qna-images/answer/1e5161ba-4611-4ad4-a1cb-ba36670014f8.jpg

1. For a constant head laboratory permeability test on a fine sand, the following values are given: Length of specimen, L = 10 inches Diameter of specimen = 2.5 inches Head difference, h = 22 inches Water collected in 2 minutes = 0.044 in3 %3D Soil specinen The void ratio of the specimen is 0.34. Determine the conductivity, k, of the soil in in/min. b. Purs e a. Determine the discharge velocity through the soil in in/min. Determine the seepage velocity in in/min. Measuring hurket C.

1. For a constant head laboratory permeability test on a fine sand, the following values are given: Length of specimen, L = 10 inches Diameter of specimen = 2.5 inches Head difference, h = 22 inches Water collected in 2 minutes = 0.044 in3 %3D Soil specinen The void ratio of the specimen is 0.34. Determine the conductivity, k, of the soil in in/min. b. Purs e a. Determine the discharge velocity through the soil in in/min. Determine the seepage velocity in in/min. Measuring hurket C.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: Constant head permeability tests were PENUI height of the two specimens (Ls1: Ls2) is 1.5, the ratio…

Q: A falling head permeability test on a specimen of fine sand (Area = 12.5 cm², Length = 10 cm)…

A: Let us first calculate the void ratio from the first test We have γd =γw*G1+e γd = dry unit weight…

Q: 2. A specimen (50 mm diameter and 100 mm height) of moist sand weights 3.31 N. Its dry weight is 3.0…

Q: constant head permeability test is performed on soil that is 2 cm x 2 cm square, and 2.5cm long. The…

Q: 1. A soil sample is collected at 20 °C and taken to the laboratory. The sample is in a stainless…

A: A soil sample in stainless steel cylinder is given with the weight of the cylinder and weight of…

Q: 2.28. A groundwater is being considered for use as a domestic supply. The water has a temperature…

Q: A sample of sand has the following properties: Moist sand Dry sand Absorption 605 grams 550 grams…

A: solution Given Moist sand Msat=605 gramsDry sand Mdry=550gramsAbsorption =2%so the amount of water…

Q: k₂ for 10 seconds and the water level is 20 cm, the water flowing measured as much as 50 cm3. What…

Q: The coefficient of permeability of fine sand is 0.12 cm/sec at a void ratio of 0.37. Estimate the…

A: Given data, k1 = 0.12 cm/sec e1 = 0.37 e2 = 0.45 (a) From Konzeny-carman formula:…

Concept explainers

Field applications of hydraulic conductivity

Hydraulic conductivity is one of the hydraulic properties of soil defined as a measurement of the ability of a porous medium to permit water movement or fluid flow through it. It is denoted by the letter K. It is influenced by the density and viscosity of the fluid. It is also called permeability. Hydraulic conductivity is defined as the ratio of velocity to the hydraulic gradient. The different methods used to determine the hydraulic conductivity are laboratory methods (constant head permeability tests and falling head tests), in-situ field methods (pumping in and pumping out tests), small scale field tests (infiltration tests and slug tests), and indirect methods such as estimation from grain size, consolidation test data, and horizontal capillary test. The pedotransfer function (PTF) method is a specific empirical estimating approach employed in the soil sciences is also used to determine the hydraulic conductivity of the soil.

Question

1. For a constant head laboratory permeability test on a fine sand, the following values are
given:
Length of specimen, L = 10 inches
Diameter of specimen = 2.5 inches
Head difference, h = 22 inches
Water collected in 2 minutes = 0.044 in
%3D
Soil specimen
The void ratio of the specimen is 0.34.
Determine the conductivity, k, of the soil in in/min.
b.
Ps ne
a.
Determine the discharge velocity through the soil in
in/min.
Determine the seepage velocity in in/min.
Measuring
hurket
C.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Field Applications of Hydraulic Conductivity

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

A certain saturated sand (S = 100%) has a moisture content of 27.9% and a specific gravity of solids of 2.61. It also has a maximum index void ratio of 0.90 and a minimum index void ratio of 0.33. Compute its relative density and classify its consistency. (Table on the right) Solution: Given the values of mmoisture content, specific gravity and degree of saturation, the void ratio can be estiamted as: e = Thus the relative density is found to be Dr = • According to the table, the soil is classified as %; soil. TABLE 3.3 CONSISTENCY OF COARSE-GRAINED SOILS AT VARIOUS RELATIVE DENSITIES (data from Lambe and Whitman, 1969) Relative Density, D,(%) 0-15 15-35 35-65 65-85 85-100 Classification Very loose Loose Medium denseª Dense Very dense "Lambe and Whitman used the term "medium," but "medium dense" is better because "medium" usually refers to the particle size distribution.
3-8 A 1-ft3 of undisturbed soil sample has a dry weight of 107 lbs. The specific gravity of the soil solids is 2.70. Need Vs VT = 1 To solve for Vs = use the following equation Ws=Vs*Gs*yw (solve for Vs) a) Calculate the void ratio of the sample. b) Calculate the porosity of the sample. DC
Problem Set 2: 4. A sample of gray silty clay has a mass of 126 kg. Laboratory tests results give a moist density (p) of 2.05 g/cm³, a specific gravity of solids (G,) of 2.71, and a moisture content (w) of 15.7%. First determine all entries in the phase diagram. Then determine the void ratio (e), the porosity (n), the degree of saturation (S), the dry density (Pa), the dry unit weight (ya), and the moist unit weight (y). Draw the Phase diagram.
a) A CU triaxial test was carried out on a silty sand soil sample. The cell pressure was equal to 200 kPa. At failure the deviator stress was equal to 410 kPa and the pore pressure was equal to 73 kPa. i) Assuming that the cohesion intercept is equal to 0, calculate the friction angle of the soil. ii) If the friction angle was equal to 35°, calculate the cohesion intercept of the soil. iii) Calculate the angle of the failure plane relative to the horizontal plane for the soil shear strength parameters in Question 4 a i and 4 a ii.