Jubilee Line Extension Interpretative Geotechnical Report

Description: 1.0 Introduction One of the key roles of an applied geologist is to process the data emanating from a site investigation and to produce an interpretative
report from the ground investigation and desk study data. The report will consist of a geological appreciation of the project area together with a
geotechnical characterisation of the strata encountered leading to engineering recommendations for design and construction. The report must be clear
and concise and unambiguous and not open to misinterpretation by another party using the report during the construction phase. If the report is
ambiguous then claims can arise with costly consequences. The interpretative report will provide an engineering assessment of the ground conditions in
relation to the proposed works. 2.0 Background Data has been provided from the Jubilee Line Extension ground investigation Package 2 undertaken by
Soil Mechanics Ltd. in 1990. The investigation was carried out for London Underground who were extending the Jubilee Line from Green Park to Canary
Wharf and beyond to Stratford in London’s Docklands development. All of the investigation works were carried out in accordance with the specifications
for ground investigation published by the Department of Transport. The site is located in central London with the proposed tunnel alignment running
approximately east-west. A considerable number of exploratory holes were put down along the alignment and an extensive soil sampling and testing
programme implemented, including both traditional and specialist testing. 3.0 The Report You have been given the brief to produce an interpretative
geotechnical report on the ground investigation data that you have been allocated. The report will consist of a series of plots, long-sections and
commentaries that you will compile and interpret from that data. You will need to download and print these files to work on. 4.0 Report Structure For the
purposes of this interpretation your report should be structured as follows: 1.0 Introduction 2.0 The Site 2.1 Topography 2.2 Geology 3.0 Ground
Investigation 3.1 General 3.2 Boreholes 3.3 Trial pits 3.4 Laboratory Tests 4.0 Ground Conditions 4.1 Stratigraphy 4.2 Groundwater 4.3 Made Ground 4.4
Alluvium 4.5 Flood Plain Gravel 4.6 London Clay 4.7 Lambeth Group 4.8 Thanet Sand 4.9 Chalk 5.0 Conclusions 6.0 References Figures 1. Site Location
Plan 2. Site Plan 3. Geology 4. Geological Section 5. Standard Penetration Test versus Level 6. Moisture Content versus Level 7. Plasticity Chart 8.
Undrained Shear Strength versus Level 5.0 Points to Remember and Note Reference should be made to the appropriate British Standards and to the
published geological memoirs and maps of the area. GEOREF should be used to identify references for the geological background of the project area. The
report should be succinct and precise, with all of the figures clearly labelled and indexed. Appropriate word-processing and graphing software should be
used to process and write-up the data. Note that the historical or geographic perspective to the Jubilee Line Extension is NOT required. You are urged not
to rely on Web based references as these are often of a dubious nature unless you can go back to the original source and it is from a reliable publication.
You must conform to the Harvard APA style of referencing and citation; you will loose marks if you fail to do this. Failure to reference your sources at all
could end in accusations of plagiarism which is a serious offence. It is suggested that you use the technical programme âGrapherâ to help you plot the
laboratory and in situ results â this programme allows you to scale the abscissas and the graphics are far superior than say âMicrsoft Excellâ. 6.0
Submission Deadline and Word Count Your report should have a minimum word count excluding graphs, tables and figures of 1,500 words.