A stockpile of soil (of unit weight = 18 kN/m3) is to be stored on a level site. The length of the stockpile is to be considered as infinite with the width and height equal to A = 7 m, B = 5 m and H = 7 m, as per the figure shown below. Calculate the increase in vertical stress (in kPa) due to the loading created by the stockpile at point A, which is located at depth Z = 5 m.
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A stockpile of soil (of unit weight = 18 kN/m3) is to be stored on a level site. The length of the stockpile is to be considered as infinite with the width and height equal to A = 7 m, B = 5 m and H =...
A 2-m thick of compacted soil of unit weight 20 kN/m3 will be placed on the top of the ground surface. Δσ y...
A 2-m thick of compacted soil of unit weight 20 kN/m3 will be placed on the top of the ground surface. Δσ y 14.0 kN/m3 3.0 m Sand Y 17.5 kN/m3 2.0 m 3.0m A Soft clay y= 13.5 kN/m3 6.0 m Medium clay y=15.0 kN/m3 B 4.0 m Bedrock a) Before placing the compacted soil, what are the overconsolidation ratios (OCR) for point A and B? b) When placing the compacted soil, what external load Ag would be? c)...
8. a. Moist sand having a unit weight of 18.60 kN/m' is to be excavated to a depth of 5 m to acco...
8. a. Moist sand having a unit weight of 18.60 kN/m' is to be excavated to a depth of 5 m to accommodate the basement of a rectangular building that is 58 m long by 38 m wide. Find the reduction in vertical stress under one corner of the building at a depth of 15 m below the original ground surface (10 m below the bottom of the excavation) that is caused by the excavation of the sand. Use Fig....
The bed of a lake consists of a deposit of silty sand with a wet unit weight of 19 (kN/m3) and a ...
The bed of a lake consists of a deposit of silty sand with a wet unit weight of 19 (kN/m3) and a coefficient of permeability of 103 (m/sec). The depth of water in the lake is 6 m. It is known that water is seeping vertically upwards through the silty sand from an underlying aquifer. a) At what rate, in per square meter of the lake bed, must water flow upwards to cause a quick condition in the silty sand?...
e3 shows the soil profile (sand-clay-sand) at the site of a warehouse that causes a surface...
e3 shows the soil profile (sand-clay-sand) at the site of a warehouse that causes a surface ding of 100 kPa. (pw= 1000 kg/m; g 9.81 m/s2) on 4 (25 marks) A clay sample was cored at 7 m depth (middle of the clay layer). Based on laboratory test data, it was found that the clay was over-consolidated with OCR = 2.5 (before applying surface loading), compression index Ce 0.44 and recompression index C. = 0.1. The consolidation coefficient of clay...
Problem 7 The soil profile at a site consists of a top 4 m layer of...
Problem 7 The soil profile at a site consists of a top 4 m layer of dense sand followed by 2 m of clay, which is underlain by a stiff stratum. The water table is at 2 m below the ground level. The following data was obtained from a consolidation test on an undisturbed sample obtained from the middle of the clay layer: water content 5 36%, specific gravity of the clay grains = 2.72, compression index = 0.72, recompression...
Variation of U, with T, and z/Hdr Proposed fill y 19.2 kN/m3 3,0 m 0 Compressibility of Soil teh 2.0 Y -18.5 kN/m3-; 1.5m-U Fine to medium sand (SP) 2.0 m 2 1.5 0.7 0.8 3.0 m 0.9 4.0m Soft clay (CL)...
Variation of U, with T, and z/Hdr Proposed fill y 19.2 kN/m3 3,0 m 0 Compressibility of Soil teh 2.0 Y -18.5 kN/m3-; 1.5m-U Fine to medium sand (SP) 2.0 m 2 1.5 0.7 0.8 3.0 m 0.9 4.0m Soft clay (CL) γ 16.0 kN/m3 0.5 10.0m (4 3 batto oLthe soil specin 0 0.1 023 04 03 06 7 08 09 10 Degree of eomsolidasion,U Example: Degree of consolidation Dense sand and gravel The proposed sand fill is 3...
Question 2 The soil profile at a level site consists of a 3-m thick layer of...
Question 2 The soil profile at a level site consists of a 3-m thick layer of sandy clay, overlaying an 8-m thick layer of loose sand, overlaying stiff gravelly clays that extend to depths greater than 20 m. The water table is at a depth of 2 m and the ground water is initially hydrostatic. The total unit weight of the upper sandy clay, above or below the water table, is 18 kN/m3. The total unit weight of the loose...
A new concrete water tank (unit weight= 24 kN/m3) with inner diameter of 13.8 m with...
A new concrete water tank (unit weight= 24 kN/m3) with inner
diameter of 13.8 m with 0.1 m wall thickness, and 9.0 m high is
proposed for construction to cover the water shortage of government
officers’ quarters that located near to an existing 6.0 m high
concrete water tank with similar diameter. The existing water tank
sits on a concrete foundation of diameter 15.0 m and thickness of
0.6 m which is below the finished surface level. The existing water...
A new concrete water tank (unit weight= 24 kN/m3) with inner diameter of 13.8 m with...
A new concrete water tank (unit weight= 24 kN/m3) with inner
diameter of 13.8 m with 0.1 m wall thickness, and 9.0 m high is
proposed for construction to cover the water shortage of government
officers’ quarters that located near to an existing 6.0 m high
concrete water tank with similar diameter. The existing water tank
sits on a concrete foundation of diameter 15.0 m and thickness of
0.6 m which is below the finished surface level. The existing water...
A new concrete water tank (unit weight= 24 kN/m3) with inner diameter of 13.8 m with...
A new concrete water tank (unit weight= 24 kN/m3) with inner
diameter of 13.8 m with 0.1 m wall thickness, and 9.0 m high is
proposed for construction to cover the water shortage of government
officers’ quarters that located near to an existing 6.0 m high
concrete water tank with similar diameter. The existing water tank
sits on a concrete foundation of diameter 15.0 m and thickness of
0.6 m which is below the finished surface level. The existing water...
A 2-m thick of compacted soil of unit weight 20 kN/m3 will be placed on the top of the ground surface. Δσ y 14.0 kN/m3 3.0 m Sand Y 17.5 kN/m3 2.0 m 3.0m A Soft clay y= 13.5 kN/m3 6.0 m Medium clay y=15.0 kN/m3 B 4.0 m Bedrock a) Before placing the compacted soil, what are the overconsolidation ratios (OCR) for point A and B? b) When placing the compacted soil, what external load Ag would be? c)...
8. a. Moist sand having a unit weight of 18.60 kN/m' is to be excavated to a depth of 5 m to accommodate the basement of a rectangular building that is 58 m long by 38 m wide. Find the reduction in vertical stress under one corner of the building at a depth of 15 m below the original ground surface (10 m below the bottom of the excavation) that is caused by the excavation of the sand. Use Fig....
The bed of a lake consists of a deposit of silty sand with a wet unit weight of 19 (kN/m3) and a coefficient of permeability of 103 (m/sec). The depth of water in the lake is 6 m. It is known that water is seeping vertically upwards through the silty sand from an underlying aquifer. a) At what rate, in per square meter of the lake bed, must water flow upwards to cause a quick condition in the silty sand?...
e3 shows the soil profile (sand-clay-sand) at the site of a warehouse that causes a surface ding of 100 kPa. (pw= 1000 kg/m; g 9.81 m/s2) on 4 (25 marks) A clay sample was cored at 7 m depth (middle of the clay layer). Based on laboratory test data, it was found that the clay was over-consolidated with OCR = 2.5 (before applying surface loading), compression index Ce 0.44 and recompression index C. = 0.1. The consolidation coefficient of clay...
Problem 7 The soil profile at a site consists of a top 4 m layer of dense sand followed by 2 m of clay, which is underlain by a stiff stratum. The water table is at 2 m below the ground level. The following data was obtained from a consolidation test on an undisturbed sample obtained from the middle of the clay layer: water content 5 36%, specific gravity of the clay grains = 2.72, compression index = 0.72, recompression...
Variation of U, with T, and z/Hdr Proposed fill y 19.2 kN/m3 3,0 m 0 Compressibility of Soil teh 2.0 Y -18.5 kN/m3-; 1.5m-U Fine to medium sand (SP) 2.0 m 2 1.5 0.7 0.8 3.0 m 0.9 4.0m Soft clay (CL) γ 16.0 kN/m3 0.5 10.0m (4 3 batto oLthe soil specin 0 0.1 023 04 03 06 7 08 09 10 Degree of eomsolidasion,U Example: Degree of consolidation Dense sand and gravel The proposed sand fill is 3...
Question 2 The soil profile at a level site consists of a 3-m thick layer of sandy clay, overlaying an 8-m thick layer of loose sand, overlaying stiff gravelly clays that extend to depths greater than 20 m. The water table is at a depth of 2 m and the ground water is initially hydrostatic. The total unit weight of the upper sandy clay, above or below the water table, is 18 kN/m3. The total unit weight of the loose...
A new concrete water tank (unit weight= 24 kN/m3) with inner
diameter of 13.8 m with 0.1 m wall thickness, and 9.0 m high is
proposed for construction to cover the water shortage of government
officers’ quarters that located near to an existing 6.0 m high
concrete water tank with similar diameter. The existing water tank
sits on a concrete foundation of diameter 15.0 m and thickness of
0.6 m which is below the finished surface level. The existing water...
A new concrete water tank (unit weight= 24 kN/m3) with inner
diameter of 13.8 m with 0.1 m wall thickness, and 9.0 m high is
proposed for construction to cover the water shortage of government
officers’ quarters that located near to an existing 6.0 m high
concrete water tank with similar diameter. The existing water tank
sits on a concrete foundation of diameter 15.0 m and thickness of
0.6 m which is below the finished surface level. The existing water...
A new concrete water tank (unit weight= 24 kN/m3) with inner
diameter of 13.8 m with 0.1 m wall thickness, and 9.0 m high is
proposed for construction to cover the water shortage of government
officers’ quarters that located near to an existing 6.0 m high
concrete water tank with similar diameter. The existing water tank
sits on a concrete foundation of diameter 15.0 m and thickness of
0.6 m which is below the finished surface level. The existing water...
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