soil mechanics

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Question 36963

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Soil Mechanics

e Consolidation test on a representative sample of the normally consolidated clay soil stratum, shown in the soil profile below, resulted in a compression index of0.28. A structure proposed at this site will produce a uniform surface load of 100kPa on a mat foundation (10 m by 15 m) at the ground surface. Estimate the maximum potential differential settlement throughout the foundation.

Question 36962

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Soil Mechanics

A 6m thick saturated compressible clay stratum has an average overburden effective stress of 120 kpa and a void ratio of 0.96 construction loads at this site will result in a stress increase of approximately 180kpa in the middle of the clay layer construction test on a representative sample of the clay soil resulted in the following compression data

Question 36961

Verified

Soil Mechanics

a consolidation test on a representative sample of soil obtained from the middle of the clay layer shown in the soil profile resulted in the following laboratory compression curve. reconstruct and plot the field compression curve show all the steps

Question 36960

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Soil Mechanics

why may lowering groundwater table induce settlement

Question 36959

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Soil Mechanics

what is an overconsolidated clay and what causes the overconsolidation give three possible causes.

Question 33710

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Soil Mechanics

\text { 7. Given } f_{c}^{\prime}=5,000 p s i \text { (Normal Weight Concrete, } 145 \text { lbs } \sqrt{f}^{3} \text { ). }

(a) Follow the ACI code to estimate f' (modulus of rupture) and E. (modulus of elasticity)for the concrete beam shown above.

Question 33709

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Soil Mechanics

6. A mixture of 1080 g of gravel with an effective absorption of 0.90% and 720 g of sand with a surface moisture of 2.51% was added to a concrete mix. Compute the adjustment that must be made to the added water to maintain a constant w/c ratio.

Question 33708

Verified

Soil Mechanics

5. A 1000-g sample of sand from the same stockpile as in Problem 3 weighted 972 g when dried at 105°C overnight. Calculate the surface moisture of the sand. (Compare your answer with the answer to Problem 3).

Question 33707

Verified

Soil Mechanics

4. The sample of sand in Problem 2 weighted 495 g after drying at 105 °C overnight. Calculate theabsorption capacity of the sand.

Question 33706

Verified

Soil Mechanics

3. A 500-g sample of the same sand as in Problem 2 from the stockpile weighted 1691gwhen placed in the jar and topped up with water. Calculate the moisture content of the sand in the stockpile.

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