solve it by given value of these questions. and also comments. by skempton(1957) method.

Brief assignment 2: (Total=20 marks) Based on the site investigation findings carried out by a third party contractor a natural slope is located at the site described in assignment 1. The slope is composed of a 5 m thick (measured vertically) clay soil cover over bedrock. To carry telecommunication cables. a trench is to be cut in the slope. Due to seasonal fluctuation of the water table. a preliminary analysis is deemed necessary on the stability of the slope against sliding. The assumed properties of the soil cover material and slope ratio are summarised in Table 1. Use the infinite slope model developed by Skempton (1951) under the following assumptions: (1) failure or slip surface is parallel to the slope's ground surface: (2) rigid- perfectly plastic constitutive law is adapted: (3) Mohr-Coulomb's failure criterion on the slip surface is implemented: (4) soil characteristics are homogeneous along the slope direction: (5) seepage doesn't take place: (6) theory of unsaturated soils is not taken into account:(1) slope extent is undefined or much larger than the depth of potential slip surface and (8) slope angle is constant. Note that in this scenario seismic (pseudo-static) forces are negligible. Key deliverables Compute the factor of safety when the soil cover is totally dry and comment on the stability of the slope. State any assumptions you make. (10 marks) Compute the factor of safety when the soil cover is totally saturated and comment on the stability of the slope. State any assumptions you make. (10 marks) No. 1 Table 1. Assumed properties of the clay material. Properties (unit of measurement) Assumed value Ya(kN/m3) if LDSID 6: Slope ratio = 2:1 LDSID = 9 Site described in assignment 1: Assume you are a competent geotechnical engineer working in a fictitious consultant corporation with a suitable and creative name of your preference. At the request of and in cooperation with Highways England at a site in the West Midlands, a team of geotechnical engineers conducted a series of investigation to determine the feasibility of a highway project development at the site including Triaxial tests at four confining pressures and direct shear tests at four normal stresses. For design purposes, the Highways England requires the shear strength properties of both fine-grained and coarse-grained soil samples extracted from the boreholes in various locations of the site. The Highways England management team heard about the very professional services your company offers to clients. Therefore, they decided to contact your company to analyse the results L of the tests carried out on the soil samples on their behalf in support of the project in relation to the preliminary slope analysis at the site. Brief assignment 2: (Total=20 marks) Based on the site investigation findings carried out by a third party contractor a natural slope is located at the site described in assignment I. The slope is composed of a 5 m thick (measured vertically) clay soil cover over bedrock. To carry telecommunication cables, a trench is to be cut in the slope. Due to seasonal fluctuation of the water table. a preliminary analysis is deemed necessary on the stability of the slope against sliding. The assumed properties of the soil cover material and slope ratio are summarised in Table ). Use the infinite slope model developed by Skempton (1951) under the following assumptions: (1) failure or slip surface is parallel to the slope's ground surface: (2) rigid- perfectlyplastic constitutive law is adapted:(3) Mohr-Coulomb's failure criterion on the slip surface is implemented: (4) soil characteristics are homogeneous along the slope direction: (5) seepage doesn't take place:(6) theory of unsaturated soils is not taken into account:(1) slope extent is undefined or much larger than the depth of potential slip surface and (8) slope angle is constant. Note that in this scenario seismic (pseudo-static) Key deliverables Compute the factor of safety when the soil cover is totally dry and comment on the stability of the slope. State any assumptions you make. (10 marks) Compute the factor of safety when the soil cover is totally saturated and comment on the stability of the slope. State any assumptions you make. (10 marks) No. 1 Table 1. Assumed properties of the clay material. Properties (unit of measurement) Assumed value Ya(kN/m3) if LDSID 6: Slope ratio = 2:1 LDSID = 9 Site described in assignment 1: Assume you are a competent geotechnical engineer working in a fictitious consultant corporation with a suitable and creative name of your preference. At the request of and in cooperation with Highways England at o site in the West Midlands, a team of geotechnical engineers conducted a series of investigation to determine the feasibility of a highway project development at the site including Triaxial tests at four confining pressures and direct shear tests at four normal stresses.for design purposes, the Highways England requires the shear strength properties of both fine-grained and coarse-grained soil samples extracted from the boreholes in various locations of the site. The Highways England management team heard about the very professional services your company offers to clients. Therefore, they decided to contact your company to analyse the results of the tests carried out on the soil samples on their behalf in support of the project in relation to the preliminary slope analysis at the site. Brief assignment 2: (Total=20 marks) Based on the site investigation findings carried out by a third party contractor a natural slope is located at the site described in assignment 1. The slope is composed of a 5 m thick (measured vertically) clay soil cover over bedrock. To carry telecommunication cables. a trench is to be cut in the slope. Due to seasonal fluctuation of the water table. a preliminary analysis is deemed necessary on the stability of the slope against sliding. The assumed properties of the soil cover material and slope ratio are summarised in Table 1. Use the infinite slope model developed by Skempton (1951) under the following assumptions: (1) failure or slip surface is parallel to the slope's ground surface: (2) rigid- perfectly plastic constitutive law is adapted: (3) Mohr-Coulomb's failure criterion on the slip surface is implemented: (4) soil characteristics are homogeneous along the slope direction: (5) seepage doesn't take place: (6) theory of unsaturated soils is not taken into account:(1) slope extent is undefined or much larger than the depth of potential slip surface and (8) slope angle is constant. Note that in this scenario seismic (pseudo-static) forces are negligible. Key deliverables Compute the factor of safety when the soil cover is totally dry and comment on the stability of the slope. State any assumptions you make. (10 marks) Compute the factor of safety when the soil cover is totally saturated and comment on the stability of the slope. State any assumptions you make. (10 marks) No. 1 Table 1. Assumed properties of the clay material. Properties (unit of measurement) Assumed value Ya(kN/m3) if LDSID 6: Slope ratio = 2:1 LDSID = 9 Site described in assignment 1: Assume you are a competent geotechnical engineer working in a fictitious consultant corporation with a suitable and creative name of your preference. At the request of and in cooperation with Highways England at a site in the West Midlands, a team of geotechnical engineers conducted a series of investigation to determine the feasibility of a highway project development at the site including Triaxial tests at four confining pressures and direct shear tests at four normal stresses. For design purposes, the Highways England requires the shear strength properties of both fine-grained and coarse-grained soil samples extracted from the boreholes in various locations of the site. The Highways England management team heard about the very professional services your company offers to clients. Therefore, they decided to contact your company to analyse the results L of the tests carried out on the soil samples on their behalf in support of the project in relation to the preliminary slope analysis at the site. Brief assignment 2: (Total=20 marks) Based on the site investigation findings carried out by a third party contractor a natural slope is located at the site described in assignment I. The slope is composed of a 5 m thick (measured vertically) clay soil cover over bedrock. To carry telecommunication cables, a trench is to be cut in the slope. Due to seasonal fluctuation of the water table. a preliminary analysis is deemed necessary on the stability of the slope against sliding. The assumed properties of the soil cover material and slope ratio are summarised in Table ). Use the infinite slope model developed by Skempton (1951) under the following assumptions: (1) failure or slip surface is parallel to the slope's ground surface: (2) rigid- perfectlyplastic constitutive law is adapted:(3) Mohr-Coulomb's failure criterion on the slip surface is implemented: (4) soil characteristics are homogeneous along the slope direction: (5) seepage doesn't take place:(6) theory of unsaturated soils is not taken into account:(1) slope extent is undefined or much larger than the depth of potential slip surface and (8) slope angle is constant. Note that in this scenario seismic (pseudo-static) Key deliverables Compute the factor of safety when the soil cover is totally dry and comment on the stability of the slope. State any assumptions you make. (10 marks) Compute the factor of safety when the soil cover is totally saturated and comment on the stability of the slope. State any assumptions you make. (10 marks) No. 1 Table 1. Assumed properties of the clay material. Properties (unit of measurement) Assumed value Ya(kN/m3) if LDSID 6: Slope ratio = 2:1 LDSID = 9 Site described in assignment 1: Assume you are a competent geotechnical engineer working in a fictitious consultant corporation with a suitable and creative name of your preference. At the request of and in cooperation with Highways England at o site in the West Midlands, a team of geotechnical engineers conducted a series of investigation to determine the feasibility of a highway project development at the site including Triaxial tests at four confining pressures and direct shear tests at four normal stresses.for design purposes, the Highways England requires the shear strength properties of both fine-grained and coarse-grained soil samples extracted from the boreholes in various locations of the site. The Highways England management team heard about the very professional services your company offers to clients. Therefore, they decided to contact your company to analyse the results of the tests carried out on the soil samples on their behalf in support of the project in relation to the preliminary slope analysis at the site