Job Safety Analysis

March 17, 2019 | Author: Qin Qin | Category: Drilling Rig, Borehole, Electricity, Clothing, Nature
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JOB SAFETY SAFETY ANALYSI ANAL YSIS S Company: ABC BIG PROJECT

JSA No. ______________________

TASK: Work Descript Descript ion: Geotechnical Geotechnical Soils Investigation Work Location:  Area outside north and south of contractor parking Estimated start date/duration: date/duration: November 19, 2010 2010 for approximately 2 weeks Trade Groups (Including sub -contractors): Geotechnical Technicians, Labours, Operating Engineers Major Major Equipment: Drill Rig Reference Material: Soils Investigation Specification, Bore Hole Location Sketch Job: Department: Prepared By: J OB -STEPS

To Begin (Date) Supervisor in Charge: Approved By: HA ZA RDS

1. Establish general Spray paint or other other chemic chemical al marking marking products products locations for boreholes during initial site walk-about. Electrical environment

- MSDS MSDS sheet sheet or consumer consumer produc productt labels labels - Have owner-authorized personnel accompany - Approved electrically-resistant electrically-resistant footwear 

Person Personnel nel contac contactin ting g live live elect electric rical al appara apparatus tus

- Safe Safe limits limits of approa approach ch

Moving vehicles in vicinity

- Reflective safety vests or other clothing - Stay within visible barriers when required - Have owner-authorized personnel accompany - Approved electrically-resistant electrically-resistant footwear 

2. Take samples samples for for Electrical environment contaminants at six proposed borehole locations. Personnel or equipment contacting live electrical apparatus Moving vehicles in vicinity

3. Locate underground utilities.

Date approved: B A RRIERS o r CONTROL

- Safe limits of approach

- Reflective safety vests or other clothing - Stay within visible barriers when required Cont Contac actt of unde underg rgro roun und d ele elect ctri rica call appa appara ratu tus s - Exc Excav avat ate e by hand hand only only Pinches, cuts, strains - Personnel wear hard hats, gloves - Safe lifting practices Possible contaminated fill soils - Approved sampling and handling practices Electrical environment - Approved electrically-resistant footwear   False or missing locates due to static or induction - Plans showing underground utility locations electric fields - Appropriate locate instrumentation - Documentation of locates Personnel or equipment contacting live electrical apparatus Moving vehicles in vicinity

4. Set up drill rig at borehole Electrical environment locations Moving vehicles in vicinity

- Safe limits of approach - Reflective safety vests or other clothing - Stay within visible barriers when required - Approved electrically-resistant footwear   - Reflective safety vests or other clothing - All work to be carried out within visible barriers - Lane closure and/or door closure permits at Boreholes 3, 5, 6, 7 and 8

Pipe rack overhead at Borehole 3 Equipment or personnel contacting live electrical apparatus Ground potential rise, induction

- Use half-tower on drill rig - Safe limits of approach

Proximit Proximity y of borehole borehole to buried buried services services / utilitie utilities s

- Hand excavate excavate to expose expose service services s

- Ground drill rig using two 4/0 portable grounds - Borehole 9 may need to drive ground rods due to non-availability of station grounds; see Step 3

5. Drill boreholes to required Electrical environment depth Moving vehicles in vicinity

High speed rotating augers

High decibel levels during drilling Flying particles / debris Contact of underground electrical apparatus by augers or samplers

Equipment or personnel contacting live electrical apparatus Ground potential rise, induction Proximity of borehole to buried services / utilities

- Maintain safe distance away from augers - Wear close-fitting clothing - Recognized drilling practices - Hearing protection - Approved eye protection - Plans showing underground utility locations - Locates done using appropriate equipment - Drill within defined area - Excavation permits - Safe limits of approach - Ground drill rig using two 4/0 portable ground rods - Hand excavate to expose services

Possible contaminated fills / soils

- Personnel wear gloves, eye protection - Approved practices per results of chemical analysis - If unknown contaminants encountered, stop work in that area and notify the owner; do not resume work until conditions are identified and appropriate protective measures are taken

Possible contaminated soil cuttings or slurry resulting from drilling activities

- Approved handling practices, per chemical test results - Soils to be contained in drums, if contaminated, for disposal at licensed off-site facility

Bentonite, cement and other drilling agents

- MSDS sheets or consumer product labels - Approved personal protective equipment - Personnel wear hard hats, gloves - Safe lifting practices - Have owner-authorized personnel accompany - Approved electrically-resistant footwear 

Pinches, cuts, strains 6. Move drill rig off of and between borehole locations

- Approved electrically-resistant footwear   - Reflective safety vests or other clothing - All work to be carried out within visible barriers

Electrical environment

Moving vehicles in vicinity Equipment or personnel contacting live electrical apparatus

- Reflective safety vests or other clothing - Safe limits of approach

NOTES: 1. Borehole locations shown on attached plan. Instructions:

1. To be prepared by the Supervisor most directly involved in the work. 2. Must be approved by preparer's management Supervisor. 3. Must be reviewed by all workers involved in the work. 4. Emergency Plan must be considered. 5. Change in work plan requires review of JSA with all addenda documented.

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