A vertical cut in a clay collapsed when the depth of excavation reached 4.5 m. Calculate the clay cohesion c if a vertical cutting in this clay, 8 m deep, is supported by a retaining wall. Also calculate the earth pressure force acting on the wall

Q: A 15 m x 20 m mat foundation shown in Figure (Q4), carries a building load of 4200 tonne and is…

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Q: Q2:Find the thickness of a capillary zone of a silty clay soil layer above water table where the…

A: GIVEN DATA:- PORE PRESSURE AT CAPILARY HIGHTY=100 KN/M2 TOTAL TENSION FORCE OF SOIL=0.001 KN…

Q: Given the following consolidation test, plot the e-log p relationship and determine if the clay…

A: The curve of the trend shows that it is an overconsolidated curve

Q: Q2 Calculate the settlement of the 3m-thick clay layer that will result from the load carried by a…

A: The given square footing is shown below;

Q: Calculate and plot the values of stresses (o ,U and o') with depth Layer No. Thickness (m) Unit…

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Q: excavation of a certain foundation pit, draining water causes upward seepage. The water head…

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Q: a) In an SPT test, the hammer entered the first 15 cm into a sandy soil with 10 blows. The next 15…

A: (a) The number of blows for that 300 mm becomes the SPT value or N-value. In the SPT test, the blows…

Q: embankment consists of clay fill for which c′ = 25 kN/m2 and φ = 27° (from consolidated undrained…

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Q: A borehole. A clay layer is discovered 7m below a sandy soil. The groundwater table of the area is…

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Q: tri-axial test was conducted on normally consolidated clay. The results were: the confining pressure…

A: We knowσ1=σ2tan245+ϕ'2+2c'tan45+ϕ2

Q: (Derive the Rankine active earth pressure of a soil at a depth of z using Mohr Circles, and failure…

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Q: emine the factor of safely against failure for the slope shown in Figun

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Q: Problem #1 The figure below shows a cantilever sheet-pile wall penetrating a granular soil. Here, L₁…

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Q: Details of soil retained behind a smooth retaining wall are given in (Figure Q1). Using Rankine's…

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Q: Circular foundation diameter B = 2m G.S. 1.0m Sand q = 150 kN/m² y = 17 kNhm² 0.5m W.T. Sand 0.5m 7…

A: Given data-

Q: In a drained triaxial compression test conducted on dry sand, failure occurred when the deviator…

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Q: 5 m Retaining wall 2 Sm XPomt H Sand Impervious stratum

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Q: ompute the cohesion of the clay. The results of a three consolidated undrained tri-axial tests on a…

A: solution consider first set σc=200Kpa ; σd=117Kpa and μ=110Kpa major stress σ11=200+117-110=207Kpa…

Q: Part of an on-site investigation for a geotechnical study where a reservoir will be built…

A: solid mechanics : The behaviour of soils is described by soil mechanics, a part of soil physics and…

Q: Circular foundation diameter B = 2m G.S. 1.0m Sand q = 150 kN/m² y = 17 kNhm² 0.5m W.T. Sand 0.5m…

A: Consolidation settlement: It is defined as the water is squeezed out of the soil and the soil…

Q: 2. During an excavation for a tunnel, 250 m below ground level, a highly fractured siltstone rock…

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Q: Question 1: You are designing a retaining wall at the construction site. The friction angle of sand…

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Q: A large sized excavation is made in a stiff clay whose saturated unit weight is 17.27 kN/m3. When…

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Q: The foundations supporting two columns of a building are shown in Figure E9.16. An extensive so…

A: WHEN COFFICIENT OF VOLUME COMPRESSIBILITY (mV) IS GIVEN:WE USE FORMULASC=HOmV∆σ¯SC= SETTLEMENT DUE…

Q: For a cohesive soil backfill, c = 20 kN/m, = 0, and y= 20 kN/m'. The depth of tension crack…

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Q: Q1) Data obtained from a drained triaxle test are cell pressure o3 = 50 kN/ m? and deviator stress o…

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Q: Question 7 Identify the rock quality for the rock recovery shown in the Figure. Poor Good Very poor…

A: As the recovery of rock pieces are more at bottom and less on top the rock is fair.

Q: An oedometer test is performed on a normally consolidated clay stratum that is 350 cm thick and it…

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