BSCU Appendix 14.1 Geotechnical Baseline Report

109 Pages·2014·6.59 MB·English

A14 – Land Contamination
A14.1 – Geotechnical Baseline Report (Hyder Consulting (UK) Limited)
A14.2 – Geotechnical Desk Study (Mott MacDonald)
A14.3 – Unexploded Ordnance Desk Study (MACC International)
A14.4 – Redevelopment of 81 King William Street (Wembley Laboratories Limited)
A14.5 – Redevelopment of 10 King William Street (Wimpey Laboratories Limited)
A14.6 – The Walbrook Development (Fugro Engineering Services Limited)
A14.7 – NM Rothschild Bank (Ground Investigations) (Norwest Holst Soil
Engineering Ltd)
A14.8 – The Walbrook Square Development (Soiltechnics)
A14.9 – Bank Station Capacity Upgrade – Abstraction and Historic Wells Current
Status (London Underground Limited)
A14.10 – Envirocheck Report (Landmark)

A14.1 – Geotechnical Baseline Report
(Hyder Consulting (UK) Limited)

Bank Station Capacity Upgrade
Geotechnical Baseline Report

Report No 0011-UA04557-UP31R-02
LU Document No LUSTN-0008798-RPT-002364 v0.2
Date 3 October 2012

Hyder Consulting (UK) Limited
2212959
10 Medawar Road
The Surrey Research Park HyderV
Guildford
Surrey GU2 7AR
United Kingdom
Tel: [phone]
Fax: [phone]
www.hyderconsulting.com
Bank Station Capacity Upgrade
Geotechnical Baseline Report
(cid:9) X
Author (cid:9) Keith Reeves
0
Checker(cid:9) Roger Barsby (cid:9)
(cid:9)
Approver (cid:9) Nigel Hayward Mo WIA
Report No (cid:9) 0011-UA04557-UP31R-02
Date (cid:9) 3 October 2012
This report has been prepared for in accordance with the
terms and conditions of appointment for the Bank Station
Capacity Upgrade Project. Hyder Consulting (UK) Limited
(2212959) cannot accept any responsibility for any use of or
reliance on the contents of this report by any third party.
Bank Station Capacity Upgrade(cid:151)Geotechnical Baseline Report
Hyder Consulting (UK) Limited-2212959
c:\documents and settings\keithreeves\Iocal settings\temporary internet files\content.outlook\bhs4dcxk\bScu gbr 02docx

CONTENTS

1 Introduction ....................................................................................... 1

2 Site Geological Characterisation........................................................ 3

2.1 Terminology ...................................................................................... 3

2.2 Geological Sequence ........................................................................ 3

2.3 Made Ground .................................................................................... 3

2.4 Alluvium ............................................................................................ 4

2.5 River Terrace Deposits ...................................................................... 4

2.6 London Clay Formation ..................................................................... 4

2.7 Lambeth Group, Thanet Sands Formation and Chalk Group ............... 4

2.8 Groundwater Conditions .................................................................... 4

3 Baseline Statements ......................................................................... 6

3.1 Man Made Features .......................................................................... 6

3.2 Geology .......................................................................................... 12

3.3 Strata Description ........................................................................... 12

3.4 Geological Features ........................................................................ 14

3.5 Groundwater ................................................................................... 15

References ............................................................................................... 18

Appendix 1 – Included Borehole Information ............................................. 19

Bank Station Capacity Upgrade—Geotechnical Baseline Report
Hyder Consulting (UK) Limited-2212959 Page i