A farmer collected a soil sample from his 4-hectare cornfield with root zone depth of 75 cm. The mass of the sample immediately after retrieval is 1010.5 grams and the mass after subsequent oven drying is 878.4 grams. Determine the (a) porosity of the soil, (b) available moisture for plant use when the sample was taken and (c) volume of water needed to irrigate the farm up to 30% by mass. Other data are the following:

A farmer collected a soil sample from his 4-hectare cornfield with root zone depth of 75 cm. The mass of the sample immediately after retrieval is 1010.5 grams and the mass after subsequent oven drying is 878.4 grams. Determine the (a) porosity of the soil, (b) available moisture for plant use when the sample was taken and (c) volume of water needed to irrigate the farm up to 30% by mass. Other data are the following:

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: The soil boring logs for a new development determined that the mean moisture content of the soil is…

A: Given data- The mean moisture content of the soil is 15.0% The standard deviation = 2.5% moisture…

Q: What are the gravimetric water contents just before and just after irrigation

Q: A 500g (assume no wastes) of dry soil was used for a soil mechanical analysis. The mass of soil…

Q: The results of a standard and a modified Proctor tests ate given in the table below. a) Generate a…

A: STANDARD PROCTOR TEST MODIFIED PROCTOR TEST VOLUME OF MOULD Mass of wet soil in the mould (kg)…

Q: An air-dry soil with a moisture content of 25%% by weight is to be used in a pot experiment. If each…

Q: Plot the Standard Proctor curve of dry unit weight versus water content (see below table) and; a)…

A: Plot the compaction curve by keeping water content along the horizontal axis and the dry unit weight…

Q: An undisturbed soil sample that is cylindrical in shape and measures 3 in (76.2 mm) in diameter by 6…

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

A: NOTE: AS PER the guidelines we are only supposed to answer first three sub parts. Respost the…

Q: In and adjoining field with grass vegetation, you carried out the same procedure as the tilled…

A: GIVEN:Wt of moist soil(Mm) = 135.6 gWt of dry soil (Md) = 118.5 gVolume (V) = 78ccTO…

Q: The lab moisture-density curve is given below, if we require a relative compaction of 94 percent in…

A: Given : graph between dry unit weight and moisture content. required: dry density to be compacted in…

Q: Mass of a dried soil sample is 250 grams (Ms). water, the soil particles displace 95 cm³ [giving us…

A: Given data:Mass of dried soil sample (Ms)= 250 gVolume of soil solids (Vs)=95cm3Density of water

Q: Dry unit weight observed in the lab Moisture Content 6.5 16.2045 7.5 17.4375 8.5 18.1305 9.5 18.2115…

A: Optimum moisture content also know as OMC it is the moisture content at which the maximum dry…

Q: A core sample has a cross sectional area of 1 cm2 and a length of 5 cm. Water with a viscosity of 1…

A: Given dataCross sectional Area=A=1 cm2Length(L)=5 cmViscosity=V=1 cp=1×10-7Ns/cm2Q1=20.4300=0.0680…

Q: The soil of an irrigation farm has field capacity and permanent wilting point water contents of 25.5…

Q: A farmer irrigates 2 has of wheat the first week in July when the average depth of rooting was 1.1…

Q: Determine the following: a.) The plasticity index of soil A. b.) The liquidity index of soil B if…

Q: A saturated sample of soil with a moisture content of 22.670% was tested in the laboratory. The data…

Q: The results from a compaction test are as follows: 130.0 128.0 126.0 124.0 122.0 120.0 118.0 116.0…

A: given compaction test result curve, X axis is water content and Y axis is dry unit weight.Water…

Q: Determine the moisture content, the moisture content by dry weight per trial based on the table…

A: The moisture content of a material indicates how much moisture is present. The percentage of the…

Q: 3.8 Following CT scanning, data are available for a chalk core plug from the North Sea area. The…

Q: Question: Natural water content of a borrow material is known to be 8%. Assuming 5,500 g of moist…

Q: 23) What is the maximum dry unit weight of compaction? a)115.25 Ibs/ft' b)117.90 Ibs/ft c)118.05…

A: Bulk unit weight of sample, γt = weight of sample lbs130ft3 Dry density = γt1+w weight of soil…

Q: Given the following data, determine the soil's textural class of the soil (assume a 50 gram sample):…

Q: The results of a Standard Compaction test are shown in the table below: Moisture Content Soil Unit…

Q: Estimate the amount of water needed to be supplemented for 750 yd3 of contaminated soil that is…

Q: The natural moisture content of a soil sample is found to be 30%. It has been calculated that the…

Q: An undisturbed soil sample is brought to the lab for analysis. The sample is cylinder that is 6 cm…

A: According to given data An undisturbed soil sample is brought to the lab for analysis.The sample is…

Q: Section 3: Aeration and Gas Transport a) How would you explain air-filled porosity for clayey soils…

A: Aeration refers to the process of supplying air or oxygen to a soil or other medium to improve its…

Q: Figure 2 shows the dry density versus water content relationship for a fine-grained soil compacted…

Q: constant head test is performed on a certain sample. A total of 123 cc of water is collected after 2…

Q: A fully saturated soil has a water content of 12% as recorded during an experiment. The specific…

A: Given: Specific gravity of soil, G = 2.78 Moisture content, w = 12 % Degree of saturation, S = 100%…

Q: In order to determine the moisture ( water ) content , a piece of sample was placed in a 14 gram…

A: Given data: weight of container (w1)=14 gram. weight of container+ weight of sample before oven…

Q: ss = 643.9 kg gravity of soil solids = 2.68 ine: ure content. our answer to three significant…

Q: What is the water content after being in the rain, in percentage? b) What would be the mass of…

Q: A fresh soil sample with a mass of 460 g is collected from the field using a cylinder with diameter…

Q: Analyze each statement (A and B) whether they are true or false. Use the choices below in answering…

A: Brief concept introduction- Moisture content (w)- It is the amount of water present in the soil at…

Q: Properties of soils IV Calculate the degree of saturation of a sample of soil with mass (undried,…

Q: Ex 2-2: A cylinder of 232 cm² cross section area was used to take undisturbed soil sample of 30.5 cm…

A: A = 232 cm2 h = 30.5 cm Wwet = 114 NWd = 96 N

Concept explainers

Weight-Volume relationships

Weight is defined as the quantity of matter contained in a body. Weight can also be defined as the force acting on a body due to gravity. Mathematically, weight can be defined as-

Question

PROBLEM 1:
A farmer collected a soil sample from his 4-hectare cornfield with root zone depth of 75 cm.
The mass of the sample immediately after retrieval is 1010.5 grams and the mass after
subsequent oven drying is 878.4 grams. Determine the (a) porosity of the soil, (b) available
moisture for plant use when the sample was taken and (c) volume of water needed to irrigate
the farm up to 30% by mass. Other data are the following:
particle density
external diameter of the sampler
internal diameter of the sampler
height of the sampler:
MC at field capacity (by mass)
MC at permanent wilting point (by mass)
=
=
2600 kg/m³
8.5 cm
8.3 cm
10 cm
30%
10%

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 given data analysis

VIEW

Step 3 ###a-Determination of Porosity and b- Available moisture content for plant use

VIEW

Step 4 c - calculation of volume of water needed to irrigation of farm upto 30% field moisture

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 4 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

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

5. A geotechnical engineering laboratory exercise was conducted to determine the suitability of a clay soil for use in a landfill liner. The exercise consisted of two parts: (a) determining the hydraulic conductivity of the clay soil using a falling head permeameter, and (b) predicting the expected time for leachate to break through a landfill liner made from the same clay soil. a) A sketch (not-to-scale) of the laboratory apparatus used in the falling head permeability test and associated information is shown below. Based on the test results, determine the hydraulic conductivity of the clay soil. Report your answer in cm/s. Diameter of standpipe = 1 mm Diameter of clay soil core = 50 mm Length of clay soil core = Area a h 100 mm Sample аrea A L. The following results were collected in the falling head test: Time (hours) Head (h, in mm) 0.0 0.5 1.0 2.0 4.0 Valve 1000 877 705 546 273 b) If a 36-in thick landfill liner is made with the clay soil tested above, how long would it take for…
the 100 cubic centimeter soil sample above starts to drain. calculate the volume of air at the following water contents: 70% 50% 30%
Problem 8.1. On a given day, the following meteorological and surface measurements were collected at noon from a bare soil field site in the Emerald Lake watershed: Air temperature 11.5°C Air relative humidity = 46.5 % : Surface air pressure 714 mb Wind speed at 2m height = 1.9 m s‐¹ Soil surface temperature 22.5°C - - The measurements are taken on the first sunny day after a rainstorm (you can assume the soil is saturated). The soil roughness elements have an average characteristic height of 5 cm. For simplicity, assume neutral atmospheric conditions. a) What additional information/input data would you need if the soil were not saturated? b) Use the appropriate model to compute the instantaneous latent and sensible heat fluxes. c) What is the equivalent evaporation rate (in mm/day) from the surface at noon?
and horfor fest ⇒ has yielded Q1A\ A standard proctor test has yielded the values shown in the table below, the volume is 1130 ft and the moisture range for 93% of maximum dry unite weight. Water Content (%) 8.24 10.20 12.30 Weight (lb) 3.26 4.15 4.67 Determine: 1. Maximum dry unit weight 2. Optimum water content 14.60 4.02 16.80 3.36
1%7. l. l, O A:09 Part one : 10 @ 1% = 10 % الحلاوي: متأكد Which one of the followings is not correct? In a dry soil sample,.. total mass ( M) = mass of solids ( Ms ). * total volume ( V) = volume of solids (Vs). mass of air ( Ma ) 0. total mass ( M) = mass of solids ( Ms ). volume of voids (Vv) = volume of air ( Va). mass of water ( Mw ) = 0. porosity (n) = air content ( A). Clay is a type of soil which is characterized by ..... high permeability. cohesion. dense relative density. high shear strength. round particles. low specific gravity. The ranae of the values of water content (w
7.19. Wastewater containing 2.01 g/m³ of pesticide percolates through a soil treatment system. Adsorption has been determined to follow a Langmuir isotherm with a = 1.01 and b=0.003 m³/g. Determine the mass of pesticide that will potentially accumulate in the soil if the cross-sectional area is 20 m² and the depth is 4 m. The dry density of the soil is approximately 2400 kg/m³.
You are working in a lab and are tasked with determining the percent plant available water for a particular soil sample. You take a field soil sample. The mass of your sample was 152g and it had 18.3% moisture by mass. Then, you place the soil sample in your pressure plate extractor and determine that the soil sample weighs 164.2g when the moisture potential is -33kPa and 130.7g at -1500kPa. What is the percent plant available moisture by mass of this soil sample? Please answer to one decimal place.
Can I get a step by step for this question? A sample of soil has a volume of 0.5 ft^3 and a weight of 50lb. After being dried in an oven, it has a weight of 44lb. The specific gravity of soil is 2.70. Determine the degree of saturation of soil before it was placed in the oven.
Question 11 The results of the particle-size analysis of a soil are as follows: Percent passing the No. 10 sieve = 80 • Percent passing the No. 40 sieve = 40 Percent passing the No. 200 sieve = 20 %3D The liquid limit and plasticity index of the minus No. 40 fraction of the soil are 30 and 5, respectively. Classify the soil by the AASHTO system. A A-2-4 B А-2-6 C) A-3 D A-2-5
You are studying the mineralogy of a soil and have made the following measurements in the lab: The soil is composed of 64% clay, with 3% organic matter. The soil pH is 6.5. The total soil CEC is 70 cmolc/kg. Using the assumption that the CEC of organic matter is 150 cmolc/kg at pH 6.5. please determine the most likely kind of clay mineral that is present in the soil sample. allophane gibbsite ilite O smectite Cation exchange occurs because cations are bound to soil colloids through O inner sphere complexes O cation bridging pH dependent complexes outer sphere complexes