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Question 36962

posted 1 years ago

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

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Question 36960

posted 1 years ago

why may lowering groundwater table induce settlement

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Question 36959

posted 1 years ago

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

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Question 36961

posted 1 years ago

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

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Question 36963

posted 1 years ago

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.

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Question 33705

posted 1 years ago

2. A 500-g sample of sand in the SSD condition was placed in a jar, which was then filled with water.The combined weight was 1697 g. The weight of the jar filled with the water only was 1390 g.Calculate the bulk specific gravity (SSD) of the sand.

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Question 33704

posted 1 years ago

1. Two 500-g samples of different sands were found to have the following amounts retained on each sieve. Calculate the fineness modulus of each sand.
a. 4.75 mm (No. 4) = 15 g, 2.36 mm (No.8) = 60 g, 1.18 mm (No.16) = 100 g,
600 µm (No. 30) = 105 g, 300 µm (No. 50) = 130 g, 150 µm (No. 100) = 90 g

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Question 33706

posted 1 years ago

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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Question 33710

posted 1 years ago

\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.

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Question 33707

posted 1 years ago

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

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