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HDD Risk Assessment
- 1. CROSS ROAD DRILLING L.L.C. RISK ASSESSMENT WORKSHEET TASK RISK ASSESSMENT WORKSHEET TASK RISK DESCRIPTION HORIZONTAL DIRECTIONAL DRILLING PROJECT NO. Ruwais Housing Complex Expansion –Phase IV Construction of Building – Package 4 Agreement Documents No.147010C6 TRA TEAM MEMBER/S GLENN DONCERAS DATE November 3, 2015 W STEP NO. DESCRIPTION OF TASK STEP HAZARD CONSEQUENCES PEOPLE, ENVIRONMENT, ASSETS, REPUTATION CONTROLS PREVENT, DETECT, CONTROL, MITIGATE BASELINE RISK ADDITIONAL CONTROL MEASURES OR ACTIONS RESP. PARTY RESIDUAL RISK RISK S P R S P R 01 Site survey before HDD Working in restricted zone Insect Bites Unknown work area hazard Insect Poisoning Look for the signboards available at site Obtain necessary permit before entering a restricted zone Use safety shoes with high ankle 3 C M Follow the signboard instruction Do not explore outside the site perimeter Don’t rest near Bushes CRD 2 A L
- 2. Hot weather condition Heat stress Use cover all Do not disturb the bushes if necessary Work under supervision Keep drinking water and first aid box Keep out under the sun once in a while and take a rest Apply insect repellent before enter- ing the bushes Keep first aid box Provide training to survey team for heat stress management Advice the survey team to drink water at regular intervals as required 02 Trial pits, Entry and Exit pit Un- identified under Damaging under ground Excavate with Manual tools only Before excavation 4 B M Permits should be obtained before Con trac 1 B L
- 3. ground services Under Ground Electrical services Electrocu- tion, damaging use detector to find out the existing services Double check if there are man- holes/marker poles that are not marked on the drawings, open the covers and check it visually Stop excavation if any unidentified underground warning tape noticed during excavation Follow the NOC details and notify the service executing the trial pits excavation near an under ground services Trial pits excavation should be done under the presence of a competent person Tool box meeting before starting trial pit excavation Follow the emergency procedure of client/ contractor in case of emergency Do not use sharp tools in excavating a pit near the tor/ Client
- 4. and commu- nication cable Soil Collapse FOC cables Engulfment provider in case of any cables found during the excavation Never touch or step a cable with bare hands or bare feet Maintain slope on excavation Excavated soil should be piled at least 1.5 m Away from the pit Equipment/ machineries should be placed 5.0 m away from the edge of the pit Excess soil from excavation existing cables Report Immediately to the site supervisor/ engineer if in case found a damage or bruised cable Caution should be provided for running on minimum distance of 30.0 m from the excavation Placed safety barriers around the pit Provide sheet Piling around the pit in case the soil is to much loose and provide
- 5. Fall of a person and Fall of a material inside the pit Multiple fracture Human injury Material Damage should be hauled to a dumping site Barricade the pit area with safety mesh or tags, safety cones and warning sign boards and keep warning lights on in this area at night Keep the materials away from the pit Workmen should not stand on the edge of the pit dewatering if the area have a shallow ground water Use PPE’s (safety helmet, safety shoes, cover all, eye protection) Workmen should avoid running or playing on the site Backfill the pit after completion and final inspection Follow the emergency procedure of client/ contractor
- 6. 03 Horizontal Directional Drilling Hot Weather Condition Unidenti- fied under Heat stress Damaging under ground Keep cool by drinking water and electrolyte Keep first aid box Keep out under the sun once in a while and take a rest Work under supervision Follow local authority work timing specially at summer time. Trial pits should be done before 3 C M Heat stress Management Training Advice workmen to drink water at regular intervals as required Details of Emergency Contact no. and Hospital to be Provided Permits should be obtained before doing the drilling CRD 2 A L
- 7. ground services Under services Electro- starting the HDD Use detector to Locate positively The existing under ground services Actual site inspection, check existing manholes and marker posts for the location and direction of the existing services which are not indicated in the drawings Follow NOC Details Drilling should be done under the supervision of a supervisor or competent person Check footpath for any markings of existing ducts Mark the direction of the existing duct if having any doubt on the location of the under ground services do not proceed the drilling, contact first the service provider for additional information Tool box meeting before
- 8. ground electrical and com- muni- cation cables Rotating Part of HDD cution, damaging FOC cable Multiple Fracture/ Machine earthing should be installed to the ground before starting the drilling Check the machine electric sensor if properly working before starting the HDD Provide barricade around the machine and pits to avoid un- authorized entry Barricade the HDD machine, starting the drilling Drilling should be done under the super- vision of an engineer or supervisor Double check the drawing and the actual site condition to make sure no existing cables was overlooked Follow the emergency procedure of client/contrac- tor Use PPE’s Caution should be provided on a distance of
- 9. Machine Hot weather condition Amputa- tion/caught between rotating parts Heat Stress only authorize person should enter/allowed near the machine Never touch or hold rotating parts of the machine Only the operator should operate the machine Cover/guard all the rotating parts of the machine Work should be under supervision of a competent person Provide commu- nication divice for the machine operator & locator Keep cool drinking water, 30.0 m from drilling equipment Operator should check the machine always before the drilling starts if the machine condition is good and working properly Follow the emergency procedure of the client/ contractor Heat stress Management Training Advice
- 10. 04 Use of HDD equipments Rotating parts of the machine Caught between rotating part of the machine electrolyte Keep first aid box Work should be under super- vision of a competent person Follow local authority work timing specially at summer time Guard/protect the rotating parts Check the HDD Machine before the operation if it is working properly Barricade the 3 C M workmen to drink water at regular intervals as required Details of emergency contact no. and hospital to be provided Use PPE’s Caution should be provided on a distance of 30.0 m from drilling equipment Operator CRD 2 A L
- 11. Un- Balanced Ground Damage of the HDD machine, only authorize person should enter/allowed near the machine Never touch or hold rotating parts of the machine Only the operator should operate the machine Work should be under supervision of a competent person Before placing the HDD machine should check the machine always before the drilling starts if the machine condition is good and working properly Follow the emergency procedure of the client/ contractor Inspect the equipment daily for its fitness before starting the operation Checked operator competency certificate Check the compaction of
- 12. Non cir- culation of fluid through drill stem equipment Damage on the electro- nic tracking com- ponents in the drill head check the ground condition, it must be hard and compacted Never put the machine/ equipment directly on the top of a man- holes Check the water Tanker and mixing unit tanks if have sufficient water for the HDD Check the fluid hose if it is free of Solidified drilling fluid Do not let any vehicles or ground Put the equipment on a level ground Provide Wooden planks underneath the ramps Checked the machine/ equipment fitness certificate Tool box meeting before the HDD starts Use PPE’s Workmen should not stay near the fluid hose
- 13. Oil Leakage Slips equipment step unto the fluid hose Barricade the machine area with safety mesh, safety tags, safety cones and warning sign boards During night operation keep the warning lights always on Use Biodegradable Hydraulic Oil Prior to operation, inspect drilling equipment if free of leaks Check Valves regularly/fitted where appropriate Do not step on Oil Spill kits stocked On site
- 14. Noise Permanent hearing disability Provide sound deadening barriers if problem with local residents Use proper PPE’s Sign area of high noise Received By: General Manager Cross Road Drilling Name: Elie Tadros Signature: Date: Approved by: Client: Name: Signature: Date:
- 15. Matrix PROBABILITY Rare (A) Possible (B) Likely (C) Often (D) Frequent (E) SEVERITY People Assets Environment Reputation Negligible (1) Slight injury or health effects Slight damage Slight effect Slight impact Minor (2) Minor injury or health effects Minor damage Minor effect Minor impact Moderate (3) Major injury or health effect Local damage Localised effect Considerable impact Major (4) Single fatality or permanent disability Major damage Major effect National impact Catastrophic (5) Multiple fatalities Extensive damage Massive effects International impact
- 16. LOW RISK MODERATE RISK HIGH RISK EXTREME RISK S : Severity ; P : Probability ; R : Risk