Why Structures built in permafrost areas should have their foundations installed in the permanently frozen earth that exists below the active zone? What does these foundations designed to ensure?

Q: .A layer of saturated clay is 10 m thick, the lower boundary being impermeable; an embankment is to…

A:

Q: Example (6-3): For the site shown in Figure below (the same site as in Example 6-2), water table…

A: given unit weight of soils 1, soil 2 , soil 3, soil 4 are 18.2, 19, 18.5, 19.2 kN/m3 Water table is…

Q: What is the overburden pressure (po) at your location (in Ib/ft?)? What is the total stress being…

A:

Q: Relating to particles of clay and adsorbed water, what is the diffuse double layer?

A: The diffuse double layer is defined as an ionic structure that explains the change in electric…

Q: A traverse line AB is being measured by theodolite and subtense bar. At station A, the horizontal…

A: First we have to draw basic diagram denoting where instrument is placed and what we have to find…

Q: What is the total primary consolidation settlement? What is the settlement at 10 years? How much…

A: Answer Calculation of Total Primary Consolidation Settlement We know that the  Primary consolidation…

Q: A 25 ft thick layer of stiff, saturated clay is underlain by a layer of sand. The sand layer…

A:

Q: What are The three principal modes of soil failure established by the patterns of the shearing…

A: Shear failure occurs to failure of soil below the ground level. It fails in the soil and the failure…

Q: Identify the physical properties of the following mineral family, their formation, and uses in Civil…

A: Given Mineral Is : Hornblende Our aim is to identify it's physical properties, and where it will…

Q: What the List types of discontinuities that can be found in igneous rock mass?

A: Discontinuities that can be found in igneous rock mass. Generally the most geotechnical significant…

Q: Explain the difference between the drained condition and the undrained condition.

A: Drained condition is defined as a condition in which pore water can easily flow out or flow in from…

Q: 1. What is the impact of lateral earth pressures on engineering structures?

A: Note: Hi! Thank you for the question As per the honour code, We’ll answer the first question since…

Q: What are the major differences of earthquake loading and ocean wave loading in the offshore…

A: Solution: The major differences are:

Q: What are Stratified Drifts ? Explain the cause of Stratified Drifts ?

A: Its a predominantly sorted sediment laid down by or in meltwater from glaciers and includes sand,…

Q: If overburden material was of a highly compressible nature, what would be the best course of action…

A: Answer If Soil is highly compressible in nature it will affect the foundation of the dam due to…

Q: How does the problem of seepage beneath a structure such as a dam, the uplift force acting on the…

A: The water seepage beneath a structure exerts pore pressure on the structure and tries to emerge out…

Q: Why at-rest lateral soil pressure conditions and not active lateral pressures should be assumed for…

A: Lateral earth pressure is defined as the pressure which exerted by the soil in the horizontal…

Q: A half-closed clay layer is 8m thick and it can be assumed that the coefficients of consolidation in…

A: Given data coefficients of consolidation in both the vertical and horizontal directions are the same…

Q: When is it appropriate to use a constant head permeability test versus a falling head permeability…

A: The constant head permeability test is performed on coarse-grained soils like gravel, sand.  The…

Q: (A) For the given, diagrams which statement(s) are correct For the given mass diagrams which…

A: The earthowork infomation is given as follows

Q: In glacially affected areas, what types of glacial formation represent possible good sources of…

A: The glacial formations which represent the possible good sources of sands and gravels for the…

Q: For construction work in permafrost regions, what type of foundation construction and protection is…

A: Structures constructed in permafrost area should really have their foundations set up in the…

Q: Why are lightweight structures usually more susceptible to damage from expansive soils?

A: EXPANSIVE soil is a soil which expands when water is added and shrinks when water is not their. Due…

Q: Homework Chapter (5) A permeable soil layer is underlain by an impervious layer as shown in Figure.…

A: H=4.2m k=4.8 * 10-3 cm/sec

Q: How might samples of soil gas be obtained from a desired depth below the ground surface?

A: The naturally occurring minerals like methane, hydrocarbons are called as soil gas which forms due…

Q: b) Explain how the weathering process creates boulders in the granitic area.

A: Boulders are created by mechanical weathering of hills and mountains. Due to the freezing and…

Q: A structure is to be supported on a 15-m square mat foundation. The average contact pressure is 100…

A: Compressive stress is the force that deforms the material in a way that reduces the volume of the…

Q: What is the relation between downwind concentration at any location and the source strength?

A: Air pollution is the addition of harmful pollutants in the atmosphere which degrades the quality of…

Q: a building will have a sitting wall on the north side of the building to allow for seating during…

A: wall height = 1.5 meter Gamma dry= 18.3 kN/m^3gamma buoyant =11.5 Kn/m^3gamma water= 9.81 kN/m^3…

Q: Homeworks Backfil d 3.1 Four layers soil „for each 2.0 m 3.0m 7,- 14 kN/m stratum: z, =2m, y=14kN /…

A: Effective stress is the ratio of force at contact of particles of soil to the total area. It cannot…

Q: QUESTION 30 Significant lateral road embankment spreading occurs in seasonal frost areas due to…

A: This question are related to the Transportation engineering from Civil Engineering. This is multiple…

Q: n excavation for a retangular building 200 ft by 120 ft in plan is 20 ft deep. The excavated…

A: Calculating the reduction in vertical pressure at 20 ft below the ground level: Reduction in…

Q: Why Thawed soil in the active zone is usually weak and compressible

A: The thaw depth, in soil science, is the immediate point below to which the surface has warmed to…

Q: Assume a deep deposit of normally consolidated clay. Which of the following processes or actions…

A: Normally consolidated clay has experienced sufficient time and pressure to attain a stable state.…

Q: Small uniform settlement of a building throughout the floor area might be tolerable. true or false…

A: There are generally three types of soil settlementImmediate settlementIt takes place in unsaturated…

Q: Water is flowing vertically upward in a sand with a saturated unit weight of 20 kN/m3. At what…

A: Given-saturated unit weight=20 kN/m3

Q: How does upward seepage affect effective stress? Why? What about downward seepage? Explain…

A:

Q: Why is the failure envelope flat in a UU triaxial test or an unconfined compression test

A: It has been asked in the question why failure envelope is flat in UU triaxial test

Q: Would it be wise to use slab-on-grade floors for houses built on permafrost? Explain.

A: People's lives can be affected by permafrost. This could cause harm to structures and vehicles…

Q: Regarding geotextiles used in separation, what is the required burst pressure of a geotextile…

A: Given, Maximum size of the stone, Da= 75 mm Tire inflation pressure, Pt=1000 kPa Cumulative…