Standard Proctor compaction curve can be drawn based on Dry density at Moisture content or Dry unit weight at Moisture content True False Uniformly graded sands, high plastic clays, and organic silts and clays typically do not compact well True False A soil with coefficient of permeability of around 0.1 cm/s can be categorized as: Clean sand and gravel mixture with a good drainage property Clean sand and gravel mixture with a p0or drainage property Clean gravel with a good drainage property O very fine sands with a good drainage property

Standard Proctor compaction curve can be drawn based on Dry density at Moisture content or Dry unit weight at Moisture content True False Uniformly graded sands, high plastic clays, and organic silts and clays typically do not compact well True False A soil with coefficient of permeability of around 0.1 cm/s can be categorized as: Clean sand and gravel mixture with a good drainage property Clean sand and gravel mixture with a p0or drainage property Clean gravel with a good drainage property O very fine sands with a good drainage property

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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A. Answer in True or False 1. A soil has a Cu =1, then it is considered as a poorly graded soll. 2. A soll has L.L-60% and P.L-35%, then it plots a point below the A-line in the plasticity chat 3. A soil described with a symbol (SP) has % passing No. 200 sievs more than 50% 4. Decreasing water content below shrinkage limit is accompanied with a decreasing in void r 5. Water molecules are considered polar and known as dipoles. 6. Dry Density is the smallest density. 7. Capillary rise is directly proportional to the pore channel diameter. 8. The unconfined compressive strength is twice the undrained cohesion. 9. Piping or boiling occurs when effective stress equals to zero. 10. It is assumed that the secondary compression begins when the primary consolidation endis
Using the Unified Soil Classification System classify the following three soils: Sieve size Soil 1 Soil 2 Soil 3 % finer % finer % finer No.4 99 97 81 No.10 92 90 70 No.40 86 40 49 No.100 78 35 No.200 60 4 32 LL (%) PL (%) 42 40 60 20 30 28 Cu 34 1.8 800 1.6 0.95 0.2 Note: gravel size is defined by particle size between 4.75mm (#4 sieve) and 75mm. Equation of A-line: Pl = 0.73 (LL - 20%).
The sieve analysis data for a granular soil are given below. % passing or finer 19 mm sieve = 100%% passing or finer 4.75 mm (4 sieve) = 61%% passing or finer 0.075mm (200 sieve) = 16% What are the percentages of gravels, sands and fines within this soil, based on the Unified Soil Classification System?
Answer Choices: A) Cl B) ML C) CH D) MH
GEOTECHNICAL
3:43 اليوم e 12:34 تحریر Problem 7 Illustrate which of the following sentences is true or false: ve 95% the following sente
Geotechnical Engineering Please help me answer this question, and please show your solutions write it properly. Problem 1 A soil sample has moist unit weight equal to 16.5 kN/m3), water content of 15%, and specific gravity of 2.70. Find the dry unit weight and the void ratio for this soll Problem 2 A soil sample has a total unit weight of 16.5 KN/m3 and a void ratio of 0.84 The specific gravity of solids is 2.70. Determine the degree of saturation and the moisture content of the soil.
Given the following soil properties of a road grading works. Moist unit weight = 19000 N/m³ Moisture Content = 12% Specific Gravity of soil solids = 2.66 Void ratio at its densest state = 0.44 Void ratio at its loosest state = 0.62 Determine the dry unit weight of the soil. Determine the in-situ void ratio of the soil. Determine the relative density of the soil
Geotechnical Engineering Please help me answer this question, and please show your solutions write it properly. Problem 4 For a given sandy soil, the maximum and minimum void ratios are 0.72 and 0.46, respectively. If Gs= 2.71 and w=11%, what is the moist unit weight of compaction in the field if the relative density equals 82%? Problem 5 A soil sample has a unit weight of 105.7 pcf and a degree of saturation of 50% When the saturation is increased to 75%, its unit weight raises to 112.7 pcf. Determine the void ratio e and the specific gravity Gs for this soil.
Please help solve this homework problem. I don’t understand show all work so i can understand please thank you!
Situation 4: A dry sand is placed in a container having a volume of 0.3 ft3 . The dry weight of the sample is 31 Ib. Water is carefully added to the container so as not to disturb the condition of the sand. When the container is filled, the combined weight of soil plus water is 38.2 Ib. From these data, a. Compute the void ratio of soil in the container b. Specific gravity of the soil particles c. A borrow material has a volume of 191,000 m3 and void ratio of 1.2. After compaction its new void ratio is 0.7, find the corresponding volume?
Using the unified soil classification system, classify the following soils.i) A 65% of the soil sample retained on No.4 sieve, 30% retained on No.200Sieve, Cu = 3 and Cc = 0.9. Also the LL = 28% and PL = 24.5%.ii) A 55% of soil sample retained on sieve No.4 and 89% retained on sieveNo.200. The soil has a liquid limit (LL) =28% and plastic limit (PL) =18%, Cu= 4.2, Cc = 1.4.