what are at least 2 differences between a bedrock or sand and gravel aquifer?

Q: Briefly explain the method of vertical trocars (vertical sand banks) with an illustration?

A: Sand casting, also known as sand molded casting, is a metal casting process characterized by using…

Q: Define Drained and Undrained Conditions

A: The question asks to define the drained and undrained conditions. These are the terms related to the…

Q: When will you plan for stockpiling of excavation soil

A: The flow of fluid includes movement of an unbalanced fluid. As long as unequalled forces are in…

Q: Determine the classification of the soil using USCS method when LL=40 and PI=15

A: Sieve Analysis and Hydrometer Result: Liquid Limit = 40 Plasticity Index = 15 To determine = Type…

Q: Explain Drilling Techniques in Caving or Squeezing Soils

A: Drilling techniques are normally the final stages of exploration  Drilling cost vary widely…

Q: What is the difference between a soil stratum that is an aquifer and one that is an aquitard?

A:

Q: What is a saline aquifer ?

A: An aquifer can be defined as a layer of permeable rock body through which the groundwater flows.…

Q: Discuss Drilling Techniques in Competent Soils

A: Drilling is a cutting process that uses a drill bit to cut or enlarge a hole of circular cross…

Q: Describe about what is Conditions relating to the active lateral earth pressure case for…

A: Conditions relating to the active lateral earth pressure case for cohesionless soil are : 1- Due to…

Q: Define the Hunt (1986) Comparison of Allowable Soil Pressures ?

A: Answer:- Hunt comparison of allowable soil pressure:- Allowable soil pressure is the maximum…

Q: What type of transported soil deposit commonly is found at the location of filled-in ancient lakes…

A: Transported soils are the deposits of weathered soil which are transported from one place to another…

Q: Define the Soil Modulus from Cone Penetration Test (modified from Mitchell and Gardner 1975) ?

A: The term soil modulus is related to geotechnical engineering. These terms are used in the soil…

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: In the given soil profile determine the 6' of the points A,B,C and D. Show the variations in a…

A: Given question shows a soil profile it is required to calculate effective stress at point A,B,C and…

Q: What is the difference between steady aquifer test and non-equilibrium test? How do these conditions…

A: Steady Aquifer Test The aquifer test is done in order to find flow system boundaries, characterizing…

Q: Explain Conditions for submerged soil.

A: We know the bulk unit weight of soil: If the soil has achieved a degree of saturation 100%.

Q: Define the types of rock.

A: There are three types of rocks as follows: Igneous rocks Sedimentary rocks Metamorphic rocks

Q: What are the sloping requirements of a Type 3 soil? O Sec 226 (2) (3) O Sec 226 (2) (4) O Sec 234…

A: sec 234(2) (f) are the sloping requirements of a type 3 soil.

Q: a) What are the typical permeability values for clay and sand, respectively? Discuss how the pore…

A: The permeability or coefficient of permeability can be defined as the rate of flow of water through…

Q: Provide generalized comments on the hardness, soundness, and durability associated with the three…

A:

Q: A Site requires 250,000 m3 of soil having a void ratio of 0.45, determine the required volume of…

A: Please refer the attached image for complete solution. THANK YOU.

Q: What effect does the shape of a channel have on stream flow and the related carried or deposited…

A: The rivers and streams has a very high energy flow rate and they wash out everything that is on…

Q: Define how to improve erosion resistance of sand in stream bed/ river bed ?

A: The process where the soil particles or rock particles are moved with the forces which are natural…

Q: Define Mohan et al. (1971) Allowable Soil Pressure Chart?

A: Mohan et al. (1971):Gives a chart in which incorporating corrected SPT values along with the use of…

Q: What will be the factor of safety against seepage if cohesion is 19 kPa, angle of backfill is 32…

A: Given- A soil having cohesion 19kPa, retained at an angle of 32°  Required-to find factor of safety…

Q: Describe about the classification of the Aquifers?

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Q: Define Black clays.

A: Black clay soils or black cotton soils or tropical black earth are considered to be potentially…

Q: .a. Determine coefficient of uniformity and coefficient of gradation b. Determine the soil…

A: To Determine: (a): The coefficient of uniformity and coefficient of gradation. (b): The soil…

Q: 3. A soil with a water content of 32%, void ratio of 0.6 percent, and a total volume of 129 lbs is…

A:

Q: Why would we want to know the total head at any point in a soil mass where seepage is occurring?

A: Total head in soil is useful in determining the flow direction of seepage in following way .

Q: Define BEARING CAPACITY ON LAYERED SOILS

A:

Q: Outline practical reasons why the elevation (depth) of the groundwater table in an area may…

A: Reason behind the fluctuation of water table seasonally or annually:

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: Explain the Hydraulic Conductivity of Granular Soil ?

A: Granular soil is coarse-grained soil, such as gravel, sand, or silt, that contains little or no…

Q: A clay layer with two-way drainage reached 75% consolidationin t years. How long would it take for…

A: To find time required for the soil to consolidate 75%

Q: How do eskers differ from drumlins with regard to formation and soil types?

A: Eskers v/s Drumlins:

Q: Write a note on geology and different soil formations of kpk?

A: Geology is the branch of natural science which deals with Earth as a whole, regarding the history,…

Q: Describe Stress Path for Tests in Consolidated–Drained Conditions

A: A stress path is a curve which shows the changes in stresses as the load acting on the soil specimen…

Q: Define Cohesive Versus Cohesionless Soils

A: Cohesive Soils : It is a type of soil where there is a inter particular attraction, this adds to the…

Q: what is confined and unconfined aquifer? What are their differences?

A: A confined aquifer is condition where the ground water table of water mass is confined between two…

Q: What types of climates are most prone to cause problems with expansive clays?

A: Expansive soil-It is also known as Black cotton soil. Expansive soil is not suitable for moisture…

Q: 2: Determine the dry unit weight of soil Given bulk unit weight=23 KN/m3 Watercontent%3D20%

A: Given data : Bulk unit weight (γ)=23 KN/m3Water content (w%)=20%

Q: Explain the difference between a soil stratum that is an aquifer and one that is an aquitard.

A: An aquifer is an earth-saturated formation. Which not only retains the water, but also produces it…

Q: What is the confined aquifer?

A: To define: Confined aquifer.

Q: what is the difference between confined and unconfined aquifer?

A: Aquifer:- Aquifer is a water bearing formation of the earth. It holds the water as well as yields it…

Q: B- Calculate the average permeability of a formation that consists of four beds in series, assuming:…

A:

Groundwater Flow

The term groundwater refers to the water which is found beneath the earth's surface. Pores present in the soil and rocks with fractures make a passage for rainwater to enter the earth's surface and deposit as groundwater. The flow nature and direction of groundwater under the earth's surface directly impacts the strength and compressibility of the soil, which reflects its ability to support structural loads.