Considering broad categories of soil types and commonly used soil sampling tools, please answer thefollowing questions.What type of sampler is used to sample granular soils forThin-walled or Shelby tube sampler →laboratory testing?What type of sampler is used to sample cohesive soils forChoose...laboratory testing?v Choose...Thin-walled or Shelbytube samplerSplit-barrel or split-Split-spoon samples are undisturbed and good for shear strerspoon samplerontesting.Electric conepenetrometer

The Cone penetrometer has a cone that is 40mm in diameter and inserted into the bed. This is used to…

Answered: Considering broad categories of soil…

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter17: Subsoil Exploration

Section: Chapter Questions

Problem 17.2P

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Since laboratory or field experiments are generally expensive and time consuming, geotechnical engineers often have to rely on empirical relationships to predict design parameters. Section 6.6 presents such relationships for predicting optimum moisture content and maximum dry unit weight. Let us use some of these equations and compare our results with known experimental data. The following table presents the results from laboratory compaction tests conducted on a wide range of fine-grained soils using various compactive efforts (E). Based on the soil data given in the table, determine the optimum moisture content and maximum dry unit weight using the empirical relationships presented in Section 6.6. a. Use the Osman et al. (2008) method [Eqs. (6.15) through (6.18)]. b. Use the Gurtug and Sridharan (2004) method [Eqs. (6.13) and (6.14)]. c. Use the Matteo et al. (2009) method [Eqs. (6.19) and (6.20)]. d. Plot the calculated wopt against the experimental wopt, and the calculated d(max) with the experimental d(max). Draw a 45 line of equality on each plot. e. Comment on the predictive capabilities of various methods. What can you say about the inherent nature of empirical models?
Select the correct answer(s) to the statement, "disturbed soil samples cannot be used for" Select one: a. classification b. stress history and soil compressibility c. grain-size analysis O d. specific gravity of soil solids Which of the folowing approaches to field investigation provides rapid, cost-effective site characterization with continuous soil profiling? Select one: a. Drilling soil borings and sampling soils using thin-walled (Shelby) tubes and standard penetration tests (SPTS). O b. Performing electric cone penetrometer test (CPT) soundings.
Help me answer the problem question and write it on paper with a complete solution and box the final answer with their unit. Thank you again. Take note: I attach a photo of AASHTO Classification System just an additional guide only to classify soil sample A and B. Thank you.
Geotechnical Engineering (UPVOTE WILL BE GIVEN. PLEASE ANSWER THE QUESTION CORRECLTY. NO LONG EXPLANATION NEEDED. FOLLOW THE INSTRUCTIONS CAREFULLY.) A moist soil weighed 895 g with a volume of 425 cm3. After drying, the sample weighed 775 g. Of the dried soil, 400 g was poured into a vessel loose state. Its volume subsequently determined to be 275 cm3. That same 400 g was then vibrated and tamped to a volume of 212 cm3 with Gs = 2.71. Determine the designation of the granular soil based on its relative density. (3 decimal places - Do not round off unless it's the final answer)
Please give the Group Symbol and Group Name of the given soil sample and provide proof or of the decision. explanation
Q2. (a) You are given the following results from Atterberg Limits testing on a soil sample (PL= 23%, LL = 55%) collected from a boring on a local project site. The soil sample had natural moisture content of 56.3% prior to Atterberg Limits testing. If the soil is fine grained, what is the USCS Group Symbol (refer to Figure 2a) on page 7 for this soil and what does the natural moisture content result tell you about the soil in-situ (i.e. “in place")?
Geotechnical Engineering (UPVOTE WILL BE GIVEN. PLEASE ANSWER THE QUESTION CORRECLTY. NO LONG EXPLANATION NEEDED. FOLLOW THE INSTRUCTIONS CAREFULLY.) A moist soil weighed 895 g with a volume of 425 cm3. After drying, the sample weighed 775 g. Of the dried soil, 400 g was poured into a vessel loose state. Its volume subsequently determined to be 275 cm3. That same 400 g was then vibrated and tamped to a volume of 212 cm3 with Gs = 2.71. a. Determine the relative density of soil in %. b. Determine the designation of the granular soil based on its relative density.
From your Atterberg limits tests on the -40 portion of these samples, you have obtained the following data Percentage finer by weight 100% 80% 60% 40% 20% 0% Soil Sample Identification 0.001 H I J L FINES Liquid Limit 60 H 0.010 46 37 Plastic Limit 26 nonplastic #200 34 18 Fine HOT SAND Medium 0.100 Particle size (mm) 1.000 GRAVEL Course Fine Coarse #4 10.000 Classify the soils H, I, J and L using 1) USCS Classification 2) AASHTO Classification 3" 100.000 I LLII. I
Given the following Sieve Analysis and Atterberg limits results. Answer the following questions: 1- What is the effective diameter of this soil? 2- Calculate the uniformity coefficient and coefficient of gradation 3- Determine the percentage of Gravel, Sand, Fine soils according to USCS. 4- Classify the soil using AASHTO (with GI) & USCS (with group name). Diameter Sieve # % Passing 100 (тm) 90 4 4.75 96 80 3.35 90 70 10 78.8 60 20 0.85 56.8 50 40 0.425 37.8 40 60 0.25 23.6 30 100 0.15 13 20 200 0.075 4.6 10 Рan LL 10 10 0.1 0.01 Diameter PL 5 Percent Passing (%) 2.
You are given the following results from Atterberg Limit testing on a soil sample (PL = 20%, LL = 58%) collected from a boring on a local project site. What is the USCS group symbol for this soil? (Refer Fig. B and USCS) e.g OL PLASTICITY INDEX (PI) 60 50 40 30 20 10 0 CASAGRANDE CHART For classification of fine-grained soils and fine-grained fraction of coarse grained soils. 10 CL or OL 20 "/wis. PLASS -LINE: POSLL-8) ML or OL 30 40 50 GO LIQUID LIMIT (LL) A-LINE PITALL-20) CH or OH Figure B: Atterberg chart MH or OH 70 80 Comple Sample 2 90 100
One of the most widely known and used soil samplers is the standard split spoon. How?
268 TNT 98 5:21 B/s SITUATION 2 In an experiment of determining the porosity and specific gravity of solids of a soil, a soil is dug out from the ground, weighed, then oven dried, and then saturated with water. The weight of the soil taken from the test hole is 1346 grams. It was then oven dried and weighed 1076 grams. After saturating it with water, it weighed 1462 grams. The volume of the test hole was then measured and found to be 792 сс. Determine the void ratio (in percentage) of the soil sample. Your answer SITUATION 3 A sample of clay soil of volume 1/1000 cubic meter and mass of 1.762 kg, after being dried out in an oven had a mass of 1.368 kg. The specific gravity of the particles was 2.69. Calculate the void ratio. Your answer Find the volume of air in the oriqinal sample. Your answer

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