WORK AT HEIGHT PRESENTATION DAVE JONES GROUP HSE MANAGER 27/09/18

Transcription

1 WORK AT HEIGHT PRESENTATION DAVE JONES GROUP HSE MANAGER 27/09/18

2 WORK AT HEIGHT CASE STUDY APRIL 2018

3 BACKGROUND Upon opening the hatches of a steel vessel berthed at PD Ports, it was recognised by the stevedores that the stowage of steel box section cargo within the hold presented significant risk of falls from height. Despite attempts to gain adequate information about the stowage of the cargo from the shipper and loading port, the information did not adequately describe the stowage of the cargo removing the opportunity for PD Ports to adequately plan for the work at height risks before the vessel had berthed. The cargo had been loaded into the hold in 5 separate stacks, three of which had voids ranging from 1 metre to 5 metres between adjacent stacks and to a depth of approximately 8 meters. Owing to the height of a potential fall, it was recognised that soft landing systems would be ineffective and the use of Fall Arrest harnesses would be impractical whilst maintaining clear access to the hold by crane for the discharge of the cargo. 3

4 STOW PLAN 4

5 8M

6 PREPARATIONS FOR WORK AT HEIGHT Through a consultative approach involving the stevedores, PD Ports Management team and personnel from other PD Ports operations, it was decided that the best approach to control the falls from height risks was to mitigate the consequences of a fall by installing scaffolding platforms around the two island stows at the forward end of the hold. This method would allow the placement of soft landing systems within the manufacturers range for safely arresting falls. The discharge of the Cargo was suspended and a specialist Scaffolding firm was contacted to assess the hold and design a scaffold platform system around the two forward end stacks of steel. A Scaffolding company was asked to attend the vessel to review the issues. The scaffolding company discussed with the management team how to safely erect a scaffold to allow placement of soft landing bags. The scaffolding provided Risk Assessments and Methods Statements for erecting the scaffold and were engaged to install the scaffold the following Monday. 6

7 FALL MITIGATION

8 FALL MITIGATION Soft landing bags used to control slight height differential Tween Deck Lids used as a barrier 1m wide void completely filled with soft landing bags Scaffolding Platforms erected at 2.5m and 5m Covered with Fall-Pac TS2

9 FALL MITIGATION

10 FALL MITIGATION

11 FALL MITIGATION

12 INSTALLATION OF SCAFFOLDING

13 INSTALLATION OF SCAFFOLDING

14 SEQUENCE OF DISCHARGE

15 SEQUENCE OF DISCHARGE

16 SEQUENCE OF DISCHARGE

17 SEQUENCE OF DISCHARGE

18 SEQUENCE OF DISCHARGE

19 CONCLUSION The Installation of the scaffolding to provide safe work at height at the forward end stows took 1 full day to erect. Dismantling of the Scaffold to allow for discharging lower levels of the stacks did not incur lost time as stevedores were able to discharge cargo from other areas in the stow. The total cost for the scaffolding to be erected and dismantled was passed on to the vessel owners No incidents or Injuries occurred during the discharge of the cargo. 19

20 Preferred Loading Keep Load tight up to bulkheads to eliminate falls into gaps Where height differences exist, step cargo down to reduce free fall height Note: Max Stow Height for Fall-Pac is 5m Open End can be protected easily with Fall-Pac system or using other vessel features Keep Gaps between stows as small as possible, Ideally below 1m

21 21 OTHER METHODS USED

22 A Brookfield Ports Company Work at Height solutions - Nets Creates work at height issues of it s own in terms of erection and dismantling requires eye pads to be welded onto The side of the vessel Requires calculation to determine size And height of fall. Lengthy and complicated, requiring Expert 3 rd party assistance 22

23 A Brookfield Ports Company Nets being erected 23

24 Single Soft Landing Bags Alsamex, Fall-Pac, etc. Maximum fall height 2m Must be clipped together Can be doubled up to keep fall height low Alsamex : 2100mm x 700mm x 700mm Fall-Pac : 2400mm x 670mm x 670mm A Brookfield Ports Company Must Be placed to provide at least 2 meters of coverage from fall edges when working to maximum fall height 2M+ 2M Max 670mm ~ 700mm 24

25 Fall-Pac TS2 Units Maximum fall height 4.8m Must be clipped together Cannot be stacked Use single units to fill gaps Unit dimensions (2400mm x 1800mm x 1300mm) A Brookfield Ports Company Must Be placed to provide at least 4.2 meters of 4.8M coverage from fall Max edges when working to maximum fall height 4.2M+ 1.3M 25

26 Catchment Area British Standards BS Applies to Safety Nets A Brookfield Ports Company Fall Heights based on rigging requirements for Safety Nets Fall Height Fall Distance 1.0M 3.5M 3.0M 4.0M 6.0M 4.5M No British Standard available for soft landing systems use only testing requirements 26

27 BS8411 Catchment Area A Brookfield Ports Company Fall Height Fall Distance 1.0M 3.5M 3.0M 4.0M 6.0M 4.5M 4.5M 6M 5M 4M 4M 3M 3.5M 2M 1M 5M 4M 3M 2M 1M 27

28 Hierarchy of Control A Brookfield Ports Company Avoidance of risk from work at height Work from ground level Loading Configurations Declining work? Use equipment or organisational method to prevent falls Loading / unloading sequence Work Platforms Filling Gaps Physical guardrails / barriers Minimise the distance and Consequences of a Fall Provide fall arrest equipment Collective measures have priority of personal Soft Landing systems Nets, Airbags, Cushions Personal Fall Protection equipment 28

29 Selecting Work at Height Equipment A Brookfield Ports Company Minimising Consequences Preventing Falls Nets / Airbags Soft Landing Systems Working Platforms Guardrails Rope Access Fall Arrest Harnesses Collective Protection Work Restraint Systems Individual Protection Priority High Low 29

30 Automatic pipe clamps A Brookfield Ports Company 30