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1、BS 8476:2007 Code of practice for the safe use of concrete pumps ICS 91.220 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BRITISH STANDARD Publishing and copyright information The BSI copyright notice displayed in this document indicates when the document was last issued. BS
2、I 2007 ISBN 978 0 580 50524 9 The following BSI references relate to the work on this standard: Committee reference B/513 Draft for comment 06/30137706 DC Publication history First published April 2007 Amendments issued since publication Amd. no.DateText affected BS 8476:2007 BSI 2007i BS 8476:2007
3、Contents Foreword iii 1Scope 1 2Terms and definitions 1 3Selection of personnel 3 4Training and certification 4 5Management of the concrete pumping operation 5 6Selection of concrete pumps 7 7Travelling to and from the site 8 8Arrival on site and setting up the machine 9 9During the pour 10 10Work w
4、ith delivery lines 12 11Pumping special concretes 14 12Cleaning out the machine and delivery lines 14 13Leaving the site (lorry-mounted concrete pumps) 15 14Personal protective equipment 15 15Concrete pump examination and testing 16 16Maintenance 17 Annexes Annex A (normative) Recommended signals 19
5、 Annex B (normative) Inspection of delivery lines 20 Annex C (informative) Pipeline wall thickness pressure Maintenance card 21 Bibliography 22 List of figures Figure 1 Example concrete pump hire check list 18 Summary of pages This document comprises a front cover, an inside front cover, pages i to
6、iv, pages 1 to 22, an inside back cover and a back cover. BS 8476:2007 ii BSI 2007This page deliberately left blank BSI 2007iii BS 8476:2007 Foreword Publishing information This British Standard was published by BSI and came into effect on 1 May 2007. It was prepared by Subcommittee B/513/-/8, Concr
7、ete plant, under the authority of Technical Committee B/513, Construction equipment and plant and siting. A list of organizations represented on this committee can be obtained on request to its secretary. Use of this document As a code of practice, this British Standard takes the form of guidance an
8、d recommendations. It should not be quoted as if it were a specification and particular care should be taken to ensure that claims of compliance are not misleading. It should be noted that this code of practice provides the minimum standards necessary for the operation of all types of concrete pumpi
9、ng equipment in addition to any other guidance and legislation that might be appropriate. Any user claiming compliance with this British Standard is expected to be able to justify any course of action that deviates from its recommendations. Presentational conventions The provisions of this standard
10、are presented in roman (i.e. upright) type. Its recommendations are expressed in sentences in which the principal auxiliary verb is “should”. Commentary, explanation and general informative material is presented in smaller italic type, and does not constitute a normative element. The word “should” i
11、s used to express recommendations of this standard. The word “may” is used in the text to express permissibility, e.g. as an alternative to the primary recommendation of the clause. The word “can” is used to express possibility, e.g. a consequence of an action or an event. Contractual and legal cons
12、iderations This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. BS 8476:2007 iv BSI 2007 In particular, attention is drawn to the f
13、ollowing statutory regulations: The Health and Safety at Work etc. Act 1974 1 The Control of Noise at Work Regulations 2005 2 The Control of Substances Hazardous to Health Regulations 2002 3 The Lifting Operations and Lifting Equipment Regulations 1998 4 The Provision and Use of Work Equipment Regul
14、ations 1998 5 The Road Traffic Act 1991 6 The Construction (Safety, Health and Welfare) Regulations 1996 7 The Management of Health and Safety Regulations 1999 8 The Manual Handling Operations Regulations 1992 9 The Control of Vibration at Work Regulations 2005 10 The Work at Height Regulations 2005
15、 11 The Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 1995 12 BSI 20071 BS 8476:2007 1 Scope 1.1 This British Standard gives recommendations for the safe use of concrete pumping and placing equipment. 1.2 This British Standard is not applicable to plaster and screed pumps. It
16、 is not applicable to the construction of the machinery, which is covered by BS EN 12001. 2 Terms and definitions For the purposes of this British Standard, the following definitions apply: 2.1admixture material which is added to concrete to change the properties of the mix 2.2ball-catcher device fi
17、tted to the delivery end of a delivery pipeline and designed to catch the sponge/rubber cleaning device used for cleaning the delivery line NOTE In the piling industry, this is commonly referred to as a “blowout basket”, “washout basket” and “catch basket”. 2.3banksman person with appropriate traini
18、ng who directs vehicle movements on site 2.4boom tip safety device device fitted to the end of the concrete-placing boom which is attached to the placement hose and which is designed to retain the placement hose if the coupling attaching it to the boom delivery pipeline fails 2.5competent person per
19、son engaged by the owner who has responsibility for thorough examinations and who has had sufficient experience, instruction and training to enable them to carry out their duties 2.6concrete homogenous mix of cement, graded aggregate and water, to which additives might be added 2.7concrete-placing b
20、oom device to support and position the delivery pipeline NOTE 1 For the purposes of this standard, the term is applicable to rotary/circular distributors. NOTE 2 A concrete-placing boom is often an adjunct to the concrete pump, but is not essential in some applications. 2.8concrete pump item of plan
21、t that works by pistons or a rotary pump and is used for pumping or spraying concrete to the placing position through a delivery pipeline alone or through a delivery pipeline attached to a concrete-placing boom BS 8476:2007 2 BSI 2007 2.9delivery pipelines lines, whether steel or rubber, through whi
22、ch the concrete is conveyed NOTE These include pipelines, hoses, coupling connectors and any valves inserted in the line. Each element of the pipeline is capable of resisting the likely maximum pressure plus a safety margin exerted by the concrete pump. 2.10hirer company, firm, person, corporation o
23、r public authority taking the owners plant on hire, including their successors or personal representatives 2.11interlock mechanical, electrical or other type of device, the purpose of which is to prevent the operation of hazardous machine functions under specified conditions (generally as long as a
24、guard is not closed) BS EN 12100-1 2.12lorry-mounted concrete pump concrete pump that is mounted on a self-propelled lorry 2.13owner company, firm or person letting the concrete pump on hire, including their successors, assignees or personal representatives 2.14placement hose flexible hose to provid
25、e freedom of movement in the final placing of concrete 2.15receiving hopper hopper into which the mixed concrete is discharged NOTE The hopper contains the valve gear for transferring the concrete from the concrete pistons into the delivery line. It might also contain mixer paddles on a revolving sh
26、aft. Access doors and an interlocked protective grille are fitted to prevent persons from coming into contact with the moving machinery. 2.16remote control box portable control panel, which is connected to the concrete pump by a cable or radio system, allowing the concrete pump operator to operate t
27、he machine from a remote position NOTE The control levers/switches may operate the concrete placing- boom movements, the concrete pump and the vehicle engine. 2.17safety induction training instruction given by the principal contractor, owner or hirer/(sub)contractor to communicate the site safety ru
28、les, safe access on the site, the location of welfare facilities, etc. NOTE The provider of the training may determine that the delivery of induction training on the first visit to the site is sufficient but insist on further training if site conditions change significantly. 2.18signaller person wit
29、h appropriate training who gives directions to the concrete pump operator by a recognized code of signals or by verbal communication BSI 20073 BS 8476:2007 2.19sponge/rubber cleaning device piece of sponge rubber, usually in the shape of a ball, which is inserted into the delivery pipeline for the p
30、urpose of cleaning the inside of the pipelines and is propelled along the delivery pipeline either by the action of the pump (forward or reverse), compressed air or water pressure 2.20stabilizers structural members on the concrete pump unit that increase the stability of the concrete pump NOTE These
31、 may also be known as “out-riggers”. 2.21trailer-mounted concrete pump concrete pump that is mounted on a trailer that can be towed NOTE These may also be known as static concrete pumps, i.e. skid-mounted or fixed units. 2.22wash-out adapter short length of pipeline with one end blanked off and a co
32、nnection for a water/compressed air hose and pressure-relief valve for cleaning purposes NOTE In the piling industry, this is commonly referred to as a “blowout gun”, “blowout chamber”, “blowout cannon”, “washout gun”, “washout chamber” and “washout cannon”. 3 Selection of personnel NOTE The safe op
33、eration of a concrete pump relies heavily on the selection of suitable personnel who are competent to carry out the required duties. 3.1 Employers should have a drugs and alcohol policy. Employers should not select anyone whose efficiency is impaired by alcohol, drugs or other influences. 3.2 The co
34、ncrete pump operator should: a)be competent; b)in the case of a lorry-mounted concrete pump operator, be over 21 years of age if driving a concrete pump on the highway; c)be medically fit, with particular regard to eyesight, hearing and reflexes; NOTE This recommendation may be relaxed where an indi
35、vidual assessment shows that an operator is able to operate a concrete pump safely. d)be physically able to operate the concrete pump safely; e)be able to judge distances, heights and clearances; f)be adequately trained and certificated for the class of concrete pump which they operate (see Clause 4
36、); g)have suitable and sufficient knowledge of the concrete pump and its safety devices; h)be fully conversant with the duties of the signaller and understand the signals in Annex A; BS 8476:2007 4 BSI 2007 i)be authorized to operate the concrete pump; and j)in the case of a lorry-mounted concrete p
37、ump operator, be licensed to drive the appropriate class of vehicle. 3.3 Evidence that the operator is medically fit to operate the concrete pump should be obtained at regular intervals not exceeding 5 years. 3.4 If a risk assessment or method statement indicates the need for a signaller, any signal
38、ler selected should be competent to: a)relay signals from the concrete-placing gang to the pump operator; b)direct safe movement of the concrete-placing boom, if applicable; and c)give clear and precise verbal instructions using audio equipment, e.g. a two-way radio. 4 Training and certification NOT
39、E The Health and Safety at Work etc. Act 1974 1 requires the employer to ensure, so far as is reasonably practicable, that employees receive “such information, instruction, training and supervision as is necessary to ensure” their health and safety at work. 4.1 Training of the concrete pump operator
40、 should include: a)safety awareness; b)knowledge of the employers risk assessment; c)knowledge and use of any personal protective equipment (PPE) provided; d)safe siting, rigging and de-rigging of the concrete pump in site conditions; e)operating the concrete-placing boom safely, if applicable; f)op
41、erating the concrete pump; g)cleaning the concrete pump out; h)working with delivery lines; i)basic knowledge of concrete composition; j)awareness of the dangers of compressed air; k)working adjacent to overhead power lines; l)dealing with emergency situations; m) working with blockages; n)personal
42、health and safety considerations; o)pre-driving checks, if applicable; p)driving the lorry, if applicable; q)necessary daily and weekly checks and maintenance of the concrete pump; and r)documentation in relation to the job. BSI 20075 BS 8476:2007 4.2 The training should be to a national recognized
43、standard that is measurable, e.g. the Construction Plant Competency Scheme. The completion of training should be followed by the issue of a certificate of training. 4.3 Concrete pump operator competence can be assessed further by the attainment of a Level 2 National Vocational Qualification for Spec
44、ialist Plant and Machinery Operations Concrete Pumping. 4.4 Periodic assessments of each concrete pump operator should be carried out by a competent person to verify the maintenance of safe standards and to assess any further training needs. 4.5 Specific training and assessment should be carried out
45、 whenever an operator is transferred to a different machine. 4.6 Personnel undergoing training should be adequately supervised. 4.7 The concrete pump operator should always be able to show the owner or site management proof of training. 4.8 The appointed signaller and operator should be instructed o
46、n: a)the use of the code of signals in Annex A; b)the use of any communications device supplied; and c)any special risks on the site, e.g. overhead obstructions. 5 Management of the concrete pumping operation 5.1 All concrete pumping pours should be planned to ensure that they are completed safely a
47、nd that all foreseeable risks have been taken into account. Planning should be carried out by the concrete pour supervisor who has the appropriate experience and knowledge. In cases of repetitive concrete pours, this planning might only be necessary in the first instance, with periodic reviews to en
48、sure that no factors have changed. 5.2 The concrete pump owner should be able to supply a risk assessment to the hirer/(sub)contractor, detailing the generic risks in concrete pumping. 5.3 The risk assessment prepared by the concrete pump owner should include risks from working at heights. Wherever
49、possible, the system of work adopted by the concrete pump owner should avoid the need for climbing on to the bed of the vehicle or static pump (for example, for cleaning or maintenance). If access to the bed of the concrete pump is necessary, then adequate means to gain access should be provided with the concrete pump, unless the work is only done at the concrete pump owners depot where adequate means of access are always available. Where reasonably practicable, guard rails should be provided to preve