Q.10 A soil stratum is 10 m thick with pervious stratum on top and bottom. The time required for 50% consolidation is (b) 426 days (d) 680 days (a) 360 days (c) 570 days Coefficient of permeability = 10-7 cm/s Coefficient of compression = 0.0003 cm²/gm Void ratio = 2 Time factor = 0.197

Q: Explain what factors are employed when we seek to group soils into any particular Soil Order.

A: The process of soil classification is fundamental to understanding and characterizing the diverse…

Q: For a given soil, show that nyw Ysat-nyw W

A: Given, wsat=nγwγsat-nγw To prove wsat=nγwγsat-nγw

Q: What happens to the volume of a given amount of soil after it has been excavated?

A: Excavation, as well as restoration of topsoil, are essential components of infrastructural…

Q: Define some of the functions that soil serves?

A: The soils are the broken pieces of rocks lying on the surface of the earth, which are formed by…

Q: What are the factors influencing soil formation and composition in a specific region?

A: Soil formation  To determine: factor influencing soil formation and composition in specific region

Q: Why lack of soil management occur?

A:

Q: Please describe the process of earthwork backfill compaction and the elements that influence the…

A: Process of Earth Backfilling and Compaction 1. Whenver backfill process is running, we always go for…

Q: Define Compacted clay soils.

A: The compaction of soil is a method in which stress is applied to the soil, which causes…

Q: Explain the size limit of all type of soils such as gravel, sand, silt and clay.

A: The size of soil is defined by diameter of particles or grains or average size.

Q: Explain the grain arrangement for loose and dense granular soils.

A: The density of the soil is measured in terms of gram per centimeter cube.

Q: Define Rankine’s Theory for Cohesionless Soils

A: Rankine’s Theory says that failure will happen when the maximum principal stress is equal to…

Q: Define glaciofluvial deposits.

A: Glaciofluvial deposits are sediments laid down mainly by ice sheet and glacier producing waters.

Q: Explain why the new universal soil loss equation includes slope length and slope steepness as…

A: Introduction- The  Universal Soil Loss Equation (USLE) calculates average yearly soil loss from…

Q: Explain the characteristics of the soil strata ?

A: The soil strata is defined as the layer of sedimentary rock or igneous rock formed on the surface of…

Q: riefly outline the process of soil compaction in earthwork sites

A: In earthwork construction, soil compaction plays a crucial role in ensuring the stability and…

Q: Describe Effective soil pressures.

A: Effective soil pressure is defined as the pressure which is transferred from grain to grain to the…

Q: Provide your answer in terms of symbols (for example, sw or ce). If the soil is poorly-graded, there…

A: Given, Particle size distribution curve LL = 36% PL = 27%

Q: Define 'Soil Texture' and 'Soil structure'. What are the various terms used to describe the above…

A: SOIL TEXTURE The proportional amounts of sand, silt, or clay in a soil make up its texture. Based on…

Q: Describe about the Uniform Homogeneous Soils.

A: Soil consists of  of  air , water , organisms in a complex way. It forms the top layer of earth's…

Q: What are the effects of expansive soils on construction soil

A: Expenive soil- These are the soil which are swell and shrink and their shear strengthis low. These…

Q: Is their any difference between moist soil and simple soil?

A: Answer The difference between moist soil and simple soil is explained into the second step

Q: Describe the ways that capillary water and the effects of capillarity can be removed from a soil.

A: Capillarity:

Q: Homework:- Classify the following soil Using AASHTO System. Given: % passing No. 10 = 100; % passing…

A: Given:  % passing No. 10 = 100 % passing No. 40 = 80 % passing No. 200 = 58 Liquid Limit (LL) = 30,…

Q: a. Classify soil A using AASHTO method. b. Classify soil B using AASHTO method c. Classify soil C…

A: Soil A: Sieve No. 200 : 17 % Liquid limit =35 Plasticity index(PI) = LL - PL = 35 - 20  PI = 15…

Q: What is the effect of various physical properties on the coefficient of permeability for granular…

A: To determine the effect of various physical properties on the coefficient of permeability for…

Q: Why Silts and clays are considered fine-grained soil?

A: The particle of the soil which passes through the 75 microns or 0.075 mm size of the sieve is called…

Q: Define the properties of clay soil ?

A: The properties of clay soils are:

Q: What is the main cause of Seasonal swelling and shrinking of expansive soils ?

A: Solution: The main cause of the seasonal swelling and shrinkage of the expansive soil is that they…

Q: What is homogenous soil ?

A: Soil is a broken piece of rock formed due to weathering of rock or decomposition of organic matter.…

Q: What are the causes of lack of soil management?

A: Lack of Soil Management can leads to degradation of soil. Due to  these it can leads to certain…

Q: Q1. Draw phase diagram of soil and what is formula of water content?

A: Asked: To draw the phase diagram of soil and give the formula for water content.   The phase diagram…

Q: Discuss the main engineering considerations related to cohesionless soils and cohesive soils. Use…

A: A cohesionless soil is one in which soil grains don't seem to stick together because of its…

Q: Define Flow Nets for Nonisotropic Soils.

A: Flow-net construction is exacerbated by the fact that equipotential lines and flowlines are not…

Q: Write note on Granular soils.

A: Granular soil:- It means gravel, sand, or silt (coarse-grained soil ) with little or no clay…

Q: What are the different means through which Soil compaction or densification can be achieved?

A: Soil compaction is a process of compaction in which the soil particles are compressed so that the…

Consolidation parameters

Consolidation is the process of expulsion of pore water present in the voids of soil solids under the pressure of the applied load. This is a quick process in the case of coarse-grained soils since the permeability is high due to the presence of more voids, while it is a slow and gradual process in the case of clayey soil as the permeability of clay is less. An example of consolidation is the settlement of soil under a building due to the load coming from the building.