During a subsurface exploration, an undisturbed soil sample was collected in the field using a split-spoon sampler. collected in the field using a split-spoon sampler for laboratory evaluation. sampler) for laboratory evaluation. The sample has a diameter of 1.375 in. diameter, 18 in. length, and a wet weight of 1.85 lb. If the oven-dried weight was 1.5 lb and Gs = 2.74; calculate the following: (a) Wet unit weight. b) Moisture content. c) Dry unit weight. d) Void ratio. e) Degree of saturation. Translated with www.DeepL.com/Translator (free version)

During a subsurface exploration, an undisturbed soil sample was collected in the field using a split-spoon sampler. collected in the field using a split-spoon sampler for laboratory evaluation. sampler) for laboratory evaluation. The sample has a diameter of 1.375 in. diameter, 18 in. length, and a wet weight of 1.85 lb. If the oven-dried weight was 1.5 lb and Gs = 2.74; calculate the following: (a) Wet unit weight. b) Moisture content. c) Dry unit weight. d) Void ratio. e) Degree of saturation. Translated with www.DeepL.com/Translator (free version)

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter3: Weight–volume Relationships

Section: Chapter Questions

Problem 3.5P

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During a subsurface exploration, an undisturbed soil sample was collected in the field using a split-spoon sampler. for laboratory evaluation. The sample has a diameter of 1.375 in. diameter, 18 in. length, and a wet weight of 1.85 lb. If the oven-dried weight was 1.5 lb and Gs = 2.74; calculate the following:(a) Wet unit weight.b) Moisture content.c) Dry unit weight.d) Void ratio.e) Degree of saturation.
during a subsurface exploration, an undiscovered soil sample was collected from the field using a split spoon sampler for lab evaluation. the sample has a diameter of 34.9mm length of 457.2mm and a moist mass of 840g. if the oven dried mass was 680g and Gs= 2.74 calculate the ff. a.)moist unit weight b.)moisture content c.)dry unit weight d.)void ratio e.)degree of saturation
A 20-cm long soil sample is acquired with a cylindrical tub having a 5-cm diameter. On removal from the tube, a sample weighs 525 g. After it is oven dried at 105° C for a period of 48 hours, the weight has stabilized at 503.2 g. The sample is assumed to be stabilized at this point and soil water has been removed. Compute the bulk density, porosity, water content, and water saturation.
A falling head permeability test is to be performed on a soil sample whose permeability is estimated to be about 3x10-5 cm/s. What diameter of the standpipe in mm should be used if the head is to drop from 27.5cm to 20.0cm in 5 minutes and of the cross-sectional area and length of the sample are respectively 15cm2 and 8.5cm?
An undisturbed soil obtained from a test pit 0.063 m3 in volume in found to have a wet weight of 0.94 kN. The dry weight of the sample is 0.76 kN. 1- Use the basic relationships of phase diagram representation of soil bulk to determine the wet density, dry density, dry unit weight, moisture content, void ratio, porosity, and the degree of saturation for a wet soil sample, 2- What would be the effective unit weight, in kN/m3, approximately and accurately, of such soil if it were submerged below the groundwater table ? The specific gravity of the soil is determined to be Gs = 2.65.
2A sample of soil obtained from a borrow pit has a wet weight of 16 kg.The total volume occupied by the sample when in the ground was8490cm. A small portion of the sample is used to determine the watercontent. The wet sample weighs 150g. After drying, it weights 125g (a) What is the water content of the sample?(6) Determine the wet and the dry unit weights of the soil in the borrowpit.
A sample of soil obtained from a borrow pit has a wet weight of 42 lb. The total volume occupied by the sample when in the ground was 0.34 ft3. A small portion of the sample is used to determine the water content. When wet, the sample mass is 150 g; after drying, 125 g. (a) What is the water content of the sample? (b) Determine the wet and the dry unit weights of the soil in the borrow pit.
A constant head permeability test was performed on a 40 cm² (cross sectional area) soil sample. The length of the sample was 5 cm, and a 20 cm head difference was applied during testing. If 10 cm³ of water was collected over 60 sec, calculate the coefficient of permeability of the soil. (b) In a falling head permeability test, the head fell from 52 to 25 cm, in 3 minutes. The cross-sectional area of the soil sample is 80 cm²,and the length was 8 cm. If the area of the standpipe was 0.5 cm², compute the coefficient of permeability of the soil.
Determine the volume of water flowing through the sample shown in the figure per hour. There are 3 different soil layers and each is 200mm in length and diameter is 150mm. A constant head of 470mm is maintained across the soil sample. The porosity for Soil I is 0.5 and the value of k is 5*10^-3 cm/s. The porosity for Soil II is 0.55 and the value of k is 4.2*10^-2 cm/s. The porosity for Soil III is 0.35 and the value of k is 3.69*10^-4 cm/s. The hydraulic conductivities are measured in the direction of the flow.
The figure shows a layer of soil in a tube that is 100mm x 100mm in cross section. Water is supplied to maintain a constant head difference of 400mm across the sample. The height of each soil sample is 100mm. and the total length from point A to B is 288cm. Calculate the equivalent k in terms of 10^-6 cm/sec from point A to B if k1. k2, and k3 is equal to 1x10^-2 cm/sec, 32x10^-3 cm/sec, and 4.9x10^-4 cm/sec, respectively. Consider that the length of the first soil sample in the left is 40% of the total length, and the soil sample in the middle and right side were both having 30% of the total length. asap solution pls
The following are the data of a soil sample:Sample Size – 2-inch diameter, 4 inches high.Wet weight – 0.401 lbsOven-dry weight – 0.334 lbsSpecific Gravity – 2.68Calculate the following:a. Void Ratiob. Water contentc. Degree of Saturation
In a falling head permeameter, tge sample used is 18cm long havibg a cross sectional area of 22cm^2. The sample of soil is mqde of three layers. The thickness of the first layer from the top is 8cm and has a value of k1=4x10^-4 cm/sec, the second layer of thickness 8cm has k2=5.5x10^-4 cm/sec and the bottom later of thickness 4 cm has k3=7x10^-4 cm/sec. Assume that the flow is taking place perpendicular to the layers. The cross sectional area of the stand pipe is 3cm^2. A.Calculate the equivalent coefficient permeability in cm/sec of the soils ib tye direction of the flow Choices: 4.44 x10^-4 cm/s 4.97x10^-4 cm/s 3.24x10^-4 cm/s 3 53x10^-4 cm/s B.Calculate the flow rate in cm^3/hr when the head drops from 25cm to 12cm Choices: 18.20,24.58,28.42,20.65 C.Calculate the time recquired for a drop of head from 25 cm to 12 cm Choices: 58.22,62.91,97.05,60.44