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Question 1 A trench was excavated in the soil at a site. The dimension of the trench was following, length equal to 2nd and 3rd digits of your student ID, width 0.5m and depth 800mm. An undisturbed cylindrical soil sample was collected before the excavation. The sample prepared had a length, 70mm and diameter of 35mm. The original mass of the sample was 101.5gm whereas after the oven drying become 67.3gm. Again, the sample was submerged in the water to make it fully saturated. After full- saturation the sample mass was measured to be 109.0 gm.The soil initial soil obtained from the trench was stockpiled and then used as a trench backfill. The soil is to now be compacted in to the trench in uniform layers at a density of 1800 kg/m3 and a moisture content of 14%. Find the following information for the soil, a. the initial water content of the soil after excavationb. in-situ void ratio of the soilc. the type of soil (i.e. clay or sand) based on initial void ratiod. dry density of in-situ soile. soil density of in-situ soilf. bulk density of in-situ soilg. specific gravity of the soilh. initial degree of saturationi. final dry density of the backfillj. final void ratio after backfill k. final degree of saturation of the backfill l. After all the excavated soil is compacted in to the trench what depth of the soil will still remain to be filled?Question 2 Using the information from the previous problem, find the shrinkage properties of the backfilled soil. Given, during the shrinkage test of the backfilled soil the soil patty had a moist mass of 44gm with initial volume 20.11ml. While the volume of the dry soil patty was 19.2 ml. Find the following,a. mass of the dry soil pattyb. shrinkage limit of the soilc. shrinkage ratio of the soild. specific gravity of the soil and explain if the specific gravity matches with theinitially excavated soil. e. volumetric shrinkagef. linear shrinkage.
Question 1
A trench was excavated in the soil at a site. The dimension of the trench was following, length equal to 2nd and 3rd digits of your student ID, width 0.5m and depth 800mm. An undisturbed cylindrical soil sample was collected before the excavation.
The sample prepared had a length, 70mm and diameter of 35mm. The original mass of the sample was 101.5gm whereas after the oven drying become 67.3gm. Again, the sample was submerged in the water to make it fully saturated. After full- saturation the sample mass was measured to be 109.0 gm.
The soil initial soil obtained from the trench was stockpiled and then used as a trench backfill. The soil is to now be compacted in to the trench in uniform layers at a density of 1800 kg/m3 and a moisture content of 14%. Find the following information for the soil,
a. the initial water content of the soil after excavation
b. in-situ void ratio of the soil
c. the type of soil (i.e. clay or sand) based on initial void ratio
d. dry density of in-situ soil
e. soil density of in-situ soil
f. bulk density of in-situ soil
g. specific gravity of the soil
h. initial degree of saturation
i. final dry density of the backfill
j. final void ratio after backfill
k. final degree of saturation of the backfill
l. After all the excavated soil is compacted in to the trench what depth of the soil
will still remain to be filled?
Question 2
Using the information from the previous problem, find the shrinkage properties of the backfilled soil. Given, during the shrinkage test of the backfilled soil the soil patty had a moist mass of 44gm with initial volume 20.11ml. While the volume of the dry
soil patty was 19.2 ml. Find the following,
a. mass of the dry soil patty
b. shrinkage limit of the soil
c. shrinkage ratio of the soil
d. specific gravity of the soil and explain if the specific gravity matches with the
initially excavated soil.
e. volumetric shrinkage
f. linear shrinkage.
A trench was excavated in the soil at a site. The dimension of the trench was following, length equal to 2ed and 3 digits of your student width 0.5m and depth 800mm. An undisturbed cylindrical soil sample was collected before the excavation The sample prepared had a length 70mm and diameter of 35mm. The original mass of the sample was 101.5gm whereas after the oven drying become 67.39m Again, the sample was submerged in the water to make it fully saturated. After full saturation the sample mass was measured to be 1090 gm The soil initial soll obtained from the trench was stockpiled and then used as a trench backfill. The soil is to now be compacted in to the trench in uniform layers at a density of 1800 kg/m and a moisture content of 14%. Find the following information for the soil. a the initial water content of the soil after excavation b. in-situ vold ratio of the soil c the type of soil (e. clay or sand) based on initial void ratio d dry density of in-situ sol soil density of in-situ soil 1 bulk density of in-situ soil 9 specific gravity of the soll h initial degree of saturation final dry density of the backfill 1 final void ratio after back k final degree of saturation of the backfill After all the excavated soil is compacted in to the trench what depth of the soil will still remain to be filled? Question 2 Using the information from the previous problem, find the shrinkage properties of the backfilled soil Given, during the shrinkage test of the backfilled so the soil patty had a moist mass of 44gm with initial volume 20.11ml. While the volume of the dry soil patty was 19.2 ml. Find the following a mass of the dry soil patty b. shrinkage limit of the soil cshrinkage ratio of the soil d specific gravity of the soil and explain if the specific gravity matches with the initially excavated soil volumetric shrinkage linear shrinkage e