Undisturbed soil obtained from a test pit 0.0283 m3 (1 ft3) in volume is found to have a wet weight of 0.459 kN (103.2 lb). The dry weight of the sample is 0.376 kN (84.5 lb). What would be the effective unit weight of such a soil if it were submerged below the groundwater table? The specific gravity of the soil is determined to be 2.70.

Undisturbed soil obtained from a test pit 0.0283 m3 (1 ft3) in volume is found to have a wet weight of 0.459 kN (103.2 lb). The dry weight of the sample is 0.376 kN (84.5 lb). What would be the effective unit weight of such a soil if it were submerged below the groundwater table? The specific gravity of the soil is determined to be 2.70.

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

See similar textbooks

Similar questions

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 165 cc sample of weight soil has a mass of 285 g when it is fully saturated. When it is oven dried, the mass 240 gram. Compute the dry unit weight and porosity.
If the soil sample has a specific gravity of 2.71 and a porosity of 0.345, determine the saturated unit weight and the bouyant unit weight.
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.
A granular soil located in a borrow pit is found to have an in-place dry density of 1,895 kg/m3. In the laboratory, values of dry maximum density and minimum density are determined as 2,100 kg/m3 and 1,440 kg/m3, respectively. From this information, calculate the relative density of the soil in the borrow pit.
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.
For a soil sample, the wet unit weight is 120 lb/ft3, and the moisture content is 20%. What is the dry unit weight of this soil sample?
The specific gravity of a saturated soil sample is 2.60, with a total unit mass of 2250 kg/m³. The dry unit mass is:
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.
A saturated soil sample has a volume of 25 cm^3 at the liquidlimit. If the soil has liquid limit and shrinkage limit of 42 % and20% respectively, determine the minimum volume which canbe attained by the soil specimen. Take G = 2.72
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.
An undisturbed sample of saturated clay has a volume of 16.5 cm3 and weighs 35.1 g. On oven drying, the weight of the sample reduces to 29.5 g. Determine the dry unit weight kN/m3.