5. A sample of soil is 5 cm high and 8 cm in diameter. It was tested in a constant head permeameter.Water percolates through the soil under a constant head of 45 cm for 8 min. The water collected andweighed. Its weight was recorded as 500 gm. On oven drying the sample of soil, the weight wasrecorded as 450 gm. If G is 2.65 calculate,Coefficient of permeability.(ii) Seepage velocity of water when the water was under operation.

An evaluation index for ground permeability is the permeability coefficient. Pore size determines…

A sample of soil is 5 cm high and 8 cm in diameter. It was tested in a constant head permeam Water percolates through the soil under a constant head of 45 cm for 8 min. The water collected weighed. Its weight was recorded as 500 gm. On oven drying the sample of soil, the weight recorded as 450 gm. If G is 2.65 calculate, (i) Coefficient of permeability. (ii) Seepage velocity of water when the water was under operation.

A sample of soil is 5 cm high and 8 cm in diameter. It was tested in a constant head permeam Water percolates through the soil under a constant head of 45 cm for 8 min. The water collected weighed. Its weight was recorded as 500 gm. On oven drying the sample of soil, the weight recorded as 450 gm. If G is 2.65 calculate, (i) Coefficient of permeability. (ii) Seepage velocity of water when the water was under operation.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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5. The weight of a sample of partially saturated soil 600 g with a volume of 365 cm3 and after drying the weight became 543 g and the specific gravity of the solids 2.67 Calculate: 1- Water or moisture content 2- Void Ratio 3- degree of saturation 4- If the soil is saturated later without changing the volume, calculate the unit weight for it.
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4) a) A wet sol in a barrel has mass of 100 kg. The barrel mass is 10 kg. Lab tests showed the water content of the soil is 5%. What is the dry mass of the soil? b) How many liters of water will be required to be added to increase the water content to 79% for optimum compaction? c) If the liquid imit is 60 and the plastic limit is 20; what will be the liquidity index if the moisture content is increased to 40%?
A soil with a volume of 163cm^3 is sampled from a field. It weighs 221g. Then, the sample was saturated until the pores were filled and now weighs 273g. The sample was drained and weighed 236g. The sample then sat out for about 2 weeks until at equilibrium and weighed 206g. After oven drying the sample, it finally weighed 202g. What is the percent moisture content by volume (theta v) at saturation %?
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1. Calculate the 4-week soil moisture flux in cm/day between based on the following data. You can use the table below for your summary of answer. Week 1 2 3 4 z1 (m) z2 (m) A 0.9 2.1 Summary of Answer: Total Head Total Head h1 at z1 h2 at z2 K = 250(-y)- Suction Su Head 1 at z1 B 0.8 cm 2.0 2.11 Suction Head 2 at z2 cm C 0.7 1.9 Hydraulic Head Conductivi Difference ty (K) (h1 -h2) cm/day cm cm -145 -230 -165 -235 -130 -240 -140 -240 Compare and make conclusion for results of A, B and C. cm Moisture Flux (q) cm/day
A soil with a volume of 163cm^3 is sampled from a field. It weighs 221g. Then, the sample was saturated until the pores were filled and now weighs 273g. The sample was drained and weighed 236g. The sample then sat out for about 2 weeks until at equilibrium and weighed 206g. After oven drying the sample, it finally weighed 202g. What is the percent moisture content by mass (theta g) at field capacity %?
Q. Solve this seepage problem.
USE FOUR DECIMAL PLACES
Question 8A 200 g/l solution of common salt was discharged into a stream at a constant rate of 25l/s. The background concentration of the salt in the stream water was found to be 10 ppm. At a downstream section where the solution was believed to have been completely mixed, the salt concentration was found to reach an equilibrium value of 45 ppm. Estimate the discharge in the stream.