t hr ci 12101 st - geotechnical problem management

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  • Geotechnical Problem Management

    T HR CI 12101 ST

    Standard

    Version 1.0 Issued Date: 07 August 2014

    Important Warning

    This document is one of a set of standards developed solely and specifically for use on the rail network owned or managed by the NSW Government and its agencies. It is not suitable for any other purpose. You must not use or adapt it or rely upon it in any way unless you are authorised in writing to do so by a relevant NSW Government agency.

    If this document forms part of a contract with, or is a condition of approval by, a NSW Government agency, use of the document is subject to the terms of the contract or approval.

    This document may not be current. Current standards are available for download from the Asset Standards Authority website at www.asa.transport.nsw.gov.au.

    State of NSW through Transport for NSW

    http://www.asa.transport.nsw.gov.au/

  • T HR CI 12101 ST Geotechnical Problem Management

    Version 1.0 Issued Date: 07 August 2014

    State of NSW through Transport for NSW

    Standard Approval Owner: Lead Civil Engineer, Asset Standards Authority Authoriser: Chief Engineer Rail, Asset Standards Authority Approver: Director Asset Standards Authority, on behalf of the ASA Configuration Control

    Board

    Document Control Version Summary of Change 1.0 First issue

    For queries regarding this document

    standards@asa.transport.nsw.gov.au

    www.asa.transport.nsw.gov.au

    mailto:standards@asa.transport.nsw.gov.au

  • T HR CI 12101 ST Geotechnical Problem Management

    Version 1.0 Issued Date: 07 August 2014

    State of NSW through Transport for NSW Page 3 of 59

    Preface The Asset Standards Authority (ASA) is an independent unit within Transport for NSW (TfNSW)

    and is the network design and standards authority for defined NSW transport assets.

    The ASA is responsible for developing engineering governance frameworks to support industry

    delivery in the assurance of design, safety, integrity, construction, and commissioning of

    transport assets for the whole asset life cycle. In order to achieve this, the ASA effectively

    discharges obligations as the authority for various technical, process, and planning matters

    across the asset life cycle.

    The ASA collaborates with industry using stakeholder engagement activities to assist in

    achieving its mission. These activities help align the ASA to broader government expectations

    of making it clearer, simpler, and more attractive to do business within the NSW transport

    industry, allowing the supply chain to deliver safe, efficient, and competent transport services.

    The ASA develops, maintains, controls, and publishes a suite of standards and other

    documentation for transport assets of TfNSW. Further, the ASA ensures that these standards

    are performance based to create opportunities for innovation and improve access to a broader

    competitive supply chain.

    The aim of this standard is to outline the requirements and guidelines to manage geotechnical

    problems in the rail corridor for the safety of rail operations and infrastructure.

    The content of this standard is derived from RailCorp engineering manuals TMC 402

    Geotechnical Problem Management Procedure and TMC 404 Recognising Geotechnical

    Problems and the requirements of the ASA's publishing framework. This document supersedes

    TMC 402 and TMC 404 in whole.

    The main text of this document is based on TMC 402 with amendments made to update legacy

    RailCorp organisational roles and reporting structures to the current ASA organisational context.

    Other changes have also been made in order to clarify and improve content.

  • T HR CI 12101 ST Geotechnical Problem Management

    Version 1.0 Issued Date: 07 August 2014

    State of NSW through Transport for NSW Page 4 of 59

    Table of contents

    1. Introduction .......................................................................................................................................5

    2. Purpose ..............................................................................................................................................5

    2.1 Scope ..................................................................................................................................................5 2.2 Application .........................................................................................................................................5 3. Reference documents.......................................................................................................................5

    4. Terms and definitions.......................................................................................................................6

    5. General requirements .......................................................................................................................7

    5.1 Safety ..................................................................................................................................................7 5.2 Environment and sustainability .......................................................................................................7 5.3 Heritage ..............................................................................................................................................7 6. Management responsibilities...........................................................................................................8

    7. Problem management procedures ..................................................................................................9

    7.1 Identification of new geotechnical problems .................................................................................9 7.2 Response to a new geotechnical problem ...................................................................................10 7.3 Site inspection report .....................................................................................................................10 7.4 Site specific surveillance guidelines .............................................................................................11 7.5 Survey monitoring ...........................................................................................................................11 7.6 Survey monitoring review ..............................................................................................................12 7.7 Surveillance .....................................................................................................................................12 7.8 Surveillance review .........................................................................................................................13 7.9 Early warning systems and rainfall monitoring systems ............................................................13 7.10 Geotechnical instrumentation and monitoring ............................................................................14 7.11 Safety measures ..............................................................................................................................15 7.12 Imposing speed restrictions during wet weather ........................................................................15 7.13 Remedial works ...............................................................................................................................16 7.14 Documents and records .................................................................................................................16 7.15 Audits ...............................................................................................................................................17 7.16 Management meeting and audit review ........................................................................................17 7.17 Training ............................................................................................................................................17 Appendix A Activity flow chart...................................................................................................................18 Appendix B - Site specific surveillance guidelines.....................................................................................19 B.1 Site specific surveillance guidelines .............................................................................................19 B.2 Site specific surveillance inspection form ...................................................................................20 Appendix C - Geotechnical risk site inspection forms...............................................................................21 Appendix D - Guidelines for recognising geotechnical problems ............................................................23 D.1 General .............................................................................................................................................23 D.2 Warning signs in embankments ....................................................................................................23 D.3 Warning signs in cuttings ..............................................................................................................41 D.4 Warning signs in track bed ............................................................................................................52 D.5 Warning signs in structures ...........................................................................................................57

  • T HR CI 12101 ST Geotechnical Problem Management

    Version 1.0 Issued Date: 07 August 2014

    State of NSW throu

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