Page 57

2015SummerShotcreteEMag

Safety Shooter limitations, special site conditions, and work limitations (for example; evening work should ensure that proper lighting is provided). Restrictions that local laws place on noise and hours of work need to be communicated clearly and work planned accordingly. Even the phys- ical setup of the equipment should be planned to allow the pump operator a visual line of sight with nozzlemen or radio communication provided when visual access is not feasible. • Safety talks or tailgate meetings are a key element in the daily operations. This is the opportunity to pinpoint hazards for the day. This may include potential hazards that may have changed due to changes in weather or other trades working close to the shotcrete placement. Let everyone ask questions and ensure everyone understands the answers Fig. 2: Man lifts allow for quick, convenient access to hard-to-reach spaces and the potential hazards you address. Ensure employees are aware of the location of safety essential to keep expenses down time to a stations and know how to use them in the minimum (refer to Fig. 2)! event of an emergency. A safety plan is a In summary, a well-planned job with a focus great idea for the work crew as well as a daily on safety will bring profit to your company and reminder of procedures in the event of an your customers will appreciate a job done on-time emergency. On most commercial jobsites or and on-budget. Spending the proper time pre- in mining, you are required to participate in a planning and ensuring the job is safe will benefit all. “line-up” or meeting to go over the day’s production processes and discuss who is working in the area and potential hazards. Resources Hazards are identified before work starts and “How to Safely Use Shotcrete,” Concrete Pump documented. Each employee will record the com/blog/how-to-safely-use-shotcrete/.Supply, Dec. 2013, http://www.concretepumpsupply. day’s events and any hazards encountered “Personnel, Duties, and Safety Precautions for the that is turned into a report at the end of the Shotcrete Gunning Crew,” based on Chapter 3 of Gunite: shift (refer to Fig. 1). A Handbook for Engineers by T.F. Ryan, published by • Ensure each worker is competent. More and The Cement and Concrete Association, 1978, London, more project owners are now requiring certi- UK, 3 pp.ASA, “Safety Guidelines for Shotcrete,” American fication for shotcrete nozzlemen. Shotcrete Association, Farmington Hills, MI, 2014, 20 pp. • Equipment arrival on-site: During initial setup, the equipment should be checked for any defects and verify that all safeguards are in place. Inspect all components before start- Mark Corner is a Manager at up and confirm the proper hose and fitting are Interconcrete Limited based in being used with special attention to the level Sudbury, ON, Canada. Corner of wear in the fittings or hoses which could be is a member of ASA and the a potential hazard during operations. Identi- Ready Mix Concrete Associa- fying the hazard early can eliminate injury tion of Ontario Technical Com- and lost time. mittee and his certifications • Jobsite production may require using equip- include ACI Concrete Field ment such as scissor lifts, man lifts, or scaf- Testing, CCIL Field and Laboratory Category II, folding. Ensure this equipment is adequate ACI wet and dry, vertical and overhead shotcrete, for the job, is in compliance with local laws and EFNARC Nozzelman. He has knowledge in and regulations, and is serviced according to underground shotcrete processes, has assisted in manufacturer’s recommendations. Ensure setting up mines with wet-shotcrete processes your shotcrete equipment is adequate for the including delivery from surface via slick lines, and job and properly serviced. Prompt service is has designed and developed shotcrete mixtures. Shotcrete • Summer 2015 55


2015SummerShotcreteEMag
To see the actual publication please follow the link above