EEMUA PUB NO 154-2017 Demolition of vertical cylindrical steel storage tanks and LPG spheres (Edition 3).pdf

1、 Demolition of vertical cylindrical steel storage tanks and LPG spheres PUBLICATION 154 Edition 3 Released by IHS. NOT FOR RESALE EEMUA Copyright 2016 The Engineering Equipment and Materials Users Association Demolition of Vertical Cylindrical Steel Storage Tanks and LPG Spheres Publication 154 Edit

2、ion 3 Copyright 2017 The Engineering Equipment and Materials Users Association A company limited by guarantee. Registered in England. Company number 477838. ISBN 978 0 85931 210 3 Imprint reference 02-2017 First published 02-2017 Registered and Trading Address: EEMUA, Second Floor, 16 Black Friars L

3、ane, London EC4V 6EB Telephone: +44 (0)20 7488 0801 Email: saleseemua.org Website: www.eemua.orgII Demolition of Vertical Cylindrical Steel Storage Tanks and LPG Spheres Publication 154 EEMUA Copyright 2017 The Engineering Equipment and Materials Users Association About EEMUA The Engineering Equipme

4、nt and Materials Users Association is usually known by its initials, EEMUA. EEMUA is an Association established by the owners and operators of industrial assets. Any organisation that is a substantial user or substantial purchaser of engineering products may apply to become a member of EEMUA. Member

5、ship is subject to the approval of Council. EEMUA aims EEMUA aims to improve the safety, environmental and operating performance of industrial facilities in the most cost-effective way, pursuing and promoting leadership in industrial asset management by sharing engineering experiences and expertise,

6、 and by the active, enlightened promotion of the distinct interests of users of engineering products. These aims are achieved by various means, including: Providing the organisation within which networking, information sharing and collaboration among users on non- competitive technical matters can t

7、ake place. Influencing the way written regulations are interpreted and applied in practice. Promoting and presenting members views, and encouraging the application of good sound engineering practices. Developing user guides, specifications, training and competency schemes. Facilitating members parti

8、cipation in national and international standards making. Influencing relevant national and European legislation and regulation. The income and resources of EEMUA are applied solely towards the promotion of the aims of the Association. No profit is transferred by way of dividend, bonus or otherwise t

9、o members. The work of the Association is mainly carried out by members representatives on EEMUA Technical Committees, Working Groups, and Forums, supported by EEMUA staff. Incorporation, membership and other information For the purposes of conducting its business, EEMUA is incorporated in England a

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12、molition of Vertical Cylindrical Steel Storage Tanks and LPG Spheres Publication 154 EEMUA Copyright 2016 The Engineering Equipment and Materials Users Association Legal aspects All rights, title and interest in this Publication belong to EEMUA. All rights are reserved. No part of this Publication m

13、ay be reproduced, stored in a retrieval system, or transmitted in any form or by any means: electronic, mechanical, photocopying, recording or other, without the express prior written agreement of the EEMUA Chief Executive. Infringement of copyright is illegal and also reduces the Associations incom

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15、arried out by appropriately qualified and competent persons for whose guidance this Publication has been prepared. EEMUA and the individual members of the Work Group that prepared this EEMUA Publication do not, and indeed cannot, make any representation or give any warranty or guarantee in connectio

16、n with material contained herein. EEMUA and the individual members of the Work Group that prepared this EEMUA Publication expressly disclaim any liability or responsibility for damage or loss resulting from the use or reliance on this Publication. Any recommendations contained herein are based on th

17、e most authoritative information available at the time of writing and on current good engineering practice, but it is essential for the user to take account of pertinent subsequent developments and/or legislation. Any person who encounters an inaccuracy or ambiguity when making use of this Publicati

18、on is asked to notify EEMUA without delay so that the matter may be investigated and appropriate action taken. Consultation and feedback EEMUA encourages constructive comments on this Publication from both Members of the Association and others. Comments should be sent on the standard feedback form,

19、a copy of which is provided towards the end of this Publication. An electronic version of the feedback form is available from EEMUA - e-mail your request for a copy to askeemua.org, telephone your request to +44 (0)20 7488 0801, or download the form from the EEMUA website at www.eemua.org. Submit co

20、mments by e-mail (preferred) or post. Comments are considered by the relevant EEMUA Technical Committees and may be incorporated in future editions of this Publication. New editions are publicised on the EEMUA website. About this PublicationIV Demolition of Vertical Cylindrical Steel Storage Tanks a

21、nd LPG Spheres Publication 154 EEMUA Copyright 2017 The Engineering Equipment and Materials Users Association Contents 1. Introduction and Scope .1 1.1 Introduction 1 1.2 Scope 1 1.2.1 General .1 1.2.2 Refrigerated Storage Tanks .1 2. Responsibilities of Owner and Contractor .2 2.1 Owners Responsibi

22、lities 2 2.2 Contractors Responsibilities .3 3. Types of Vessels 4 3.1 Storage Tanks (Non-Refrigerated) 4 3.1.1 Types of Storage Tank 4 3.1.2 Fixed Roof Tanks .4 3.1.3 Floating Roof Tanks .4 3.2 Refrigerated Liquefied Gas Storage Tanks . 4 3.3 Column Supported Spheres 5 4. Methods of Demolition 6 4.

23、1 Demolition Alternatives .6 4.2 Factors Affecting the Choice of Demolition Method 6 4.2.1 General .6 4.2.2 Tank Design .6 4.2.3 Condition of the Tank 9 4.2.4 Local and Environmental Conditions .9 4.2.4.1 Operating Sites .9 4.2.4.2 Decommissioned Sites .9 5. Essential Data to Develop the Demolition

24、Procedure 10 5.1 Tank Data and its Position in the Plant . 10 5.1.1 Drawings and Calculations 10 5.1.2 Modifications / Repairs. 10 5.1.3 Corrosion 10 5.1.4 Tank Service History . 10 5.2 Site Plan 10V Demolition of Vertical Cylindrical Steel Storage Tanks and LPG Spheres Publication 154 EEMUA Copyrig

25、ht 2017 The Engineering Equipment and Materials Users Association 5.3 Hazards . 10 5.3.1 General 10 5.3.2 Product Hazards . 11 5.3.3 Mechanical Hazards . 11 5.4 Tank Isolation 11 5.5 Tank Cleaning and Gas Freeing 11 5.6 Site Inspection and Pre-demolition Discussion . 12 5.7 Review of the Demolition

26、Procedure 12 5.8 Points of Note for the Demolition Contract . 12 6. Selection and Appointment of Contractor 13 6.1 General 13 6.2 Contractor Assessment . 13 6.3 The Contractors Method Statement . 13 7. Civil Engineering Aspects of Tank Demolition 14 7.1 Overview 14 7.2 Health it is therefore essenti

27、al, for the owner/user, from hereon referred to as “the owner*” and the contractor to carry out a detailed inspection prior to the start of demolition. The type and strength of the structure and site conditions may influence the preferred demolition method. Various alternatives are possible and each

28、 will have its advantages depending on the limitations imposed by the location, etc. This document describes the various phases of the work and highlights some of the pitfalls that may be encountered. 1.2 Scope 1.2.1 General In the last thirty years many vertical steel storage tanks have been demoli

29、shed worldwide. In some cases the owners of such tanks entered into contracts with demolition contractors without sufficient knowledge of the problems involved. As a consequence a number of serious and sometimes fatal accidents have occurred. The causes amongst others have included inadequate contra

30、ct specification, insufficient inspection and supervision, shortcomings in the site safety arrangements and unsafe demolition procedures. This document provides guidelines for the following types of structures: Vertical cylindrical, non-refrigerated, storage tanks built in accordance with BS 2654 (1

31、) , API 650 (2)or an equivalent code Vertical cylindrical, refrigerated storage tanks built in accordance with BS 7777 (13) , API 620 (3)or an equivalent code Column supported LPG or Ammonia spheres built in accordance with BS 5500 (4) , ASME Section VIII (5) , Division 1 or 2 or other national pres

32、sure vessel code These guidelines are written particularly for the owners of storage tanks and spheres and outline the steps necessary to achieve a satisfactory and safe demolition. Although some information is included on demolition procedures, this document does not provide a comprehensive list of

33、 all methods that may be proposed by demolition contractors. This guidance is intended to assist the owner in evaluating the acceptability of the methods proposed. This document assumes that the tank material will not be re used to construct a new tank. *Throughout this text the term owner is used f

34、or the party having the ultimate responsibility for the safe demolition of the tank. To avoid subsequent difficulties it is essential that should a party other than the owner be assigned this responsibility, this is clarified and understood prior to detailed contract discussions and the commencement

35、 of any site work. 1.2.2 Refrigerated Storage Tanks While at present there is no immediate industry need for recommendations on the demolition of refrigerated storage tanks, a section has been included covering this type of tank (Section 10). 1. Introduction and Scope2 Demolition of Vertical Cylindr

36、ical Steel Storage Tanks and LPG Spheres Publication 154 EEMUA Copyright 2017 The Engineering Equipment and Materials Users Association The responsibilities and obligations of Owner and Contractor should be clearly set out in the contract to ensure a clear understanding of the responsibilities and o

37、bligations by all parties involved. The contract must be consistent with legal requirements. For example, in the UK, the Construction (Design and Management) Regulations 2015 (9)will apply. These regulations require the Owner to appoint a Principal Designer and to appoint the Principal Contractor. T

38、he CDM Regulations specify the responsibilities of the Owner, the Principal Designer and the Principal Contractor. For example, the Principal Designer is to ensure that a “Pre-Tender Stage Health and Safety Plan” is prepared. The Principal Contractor is then required to develop the health and safety

39、 plan before works starts on site and to keep it up to date throughout the construction phase. Other regulations, which may be applicable, are The Management of Health and Safety at Work Regulations 1999 and the Environmental Protection Act 1990. The Contractor must take steps to ensure prevention o

40、f contamination of the ground, groundwater and sewers etc. both during preparatory works and the demolition works. 2.1 Owners Responsibilities The owner shall ensure that all required external permits are in place before the Contractor begins work. In may be necessary to operate within Planning and

41、Building Regulations and if the tank is adjacent to residential property, further conditions or Public Notices may be required. The owner shall also ensure any environmental permits that may be required are in place, particularly if contamination is present in the tank and/or foundations. The owner

42、has the responsibility to appoint the demolition contractor and he must satisfy himself that the contractor is capable of providing the supervision, labour and equipment consistent with the needs of the task. He must also be satisfied that the contractor will conduct his operations in accordance wit

43、h good demolition practice. Documents such as BS 6187:2011 (7)and the H&SE Guidance on GS29/4 (8)provide basic guidance in this regard. In addition the owner should take particular note of the following: The agreed demolition procedure should take account of all the requirements set out in this docu

44、ment as well as recognising the special requirements of the individual tank, its location and local conditions and constraints. This must include establishing the boundaries of the site within which the demolition contractor will work. All relevant site details as well as design and operating data f

45、or the tank to be demolished should be made available prior to the development of the demolition procedure. Appropriate supervision should be provided throughout the demolition period. A project engineer should have overall responsibility for all technical aspects and a safety inspector should provi

46、de the detailed day-to-day safety checks. These should include checking the contractors compliance with the agreed procedures, gas tests in and around the tank, scrutiny of hot work procedures and general safety measures. Arrangements should be made in advance for the safe disposal of all materials. Legislation concerning the removal of poisonous or contaminated materials from the site must be carefully followed. The importance of the correct removal and disposal of lead contaminated materials is 2. Responsibilities of Owner and Contractor