Falls Through Shaft Openings and Down Shaft Void
HighElevator shafts present catastrophic fall hazards with openings at each floor level and vertical shafts extending multiple storeys from roof level to basement. Workers can fall through unprotected shaft door openings at floor levels, through gaps in temporary scaffold platforms erected within shafts, over edges of mobile elevated work platforms positioned at shaft openings, or through the shaft void itself falling from upper levels to lower levels or shaft pit. Unlike typical construction fall hazards involving single-level falls, elevator shaft falls can extend 5-20 storeys or more, making survival unlikely and injuries inevitably fatal. The confined vertical nature of shafts means falling workers may strike intermediate landings, installed glass panels, elevator guide rails, or shaft walls during descent, causing multiple impact injuries. Shaft openings at each floor create fall hazards as workers move materials and equipment between levels. Temporary removal of shaft door protection during glass installation creates unguarded openings. Poor lighting within shafts reduces visibility of shaft edges and opening perimeters. Workers carrying large glass panels have obstructed vision and reduced ability to recognise edge hazards. Focus on precision glass positioning and structural fixing activities diverts attention from fall hazards. Fatigue from working in confined awkward positions reduces vigilance and increases error rates.
Consequence: Fatal or catastrophic injuries from multi-storey falls including traumatic brain injuries, spinal fractures resulting in paralysis, multiple skeletal fractures, internal organ damage, and death on impact. Even falls from single floor height within shafts can be fatal due to landing on concrete shaft floors or striking elevator equipment.
Glass Panel Falls During Vertical Lifting in Shaft
HighLifting large heavy glass panels vertically through confined elevator shafts using vacuum lifters, rope and pulley systems, or mechanical hoists presents severe drop hazards if lifting equipment fails or panels are inadequately secured during vertical transport. Glass panels for lift shafts commonly weigh 200-500kg depending on dimensions and glass thickness, creating enormous destructive force if dropped from upper shaft levels. Vacuum lifter failure from power loss, seal degradation, or operator error can cause sudden release of suspended glass panels. Rope or chain lifting systems can fail from inadequate rigging, damaged slings, or exceeding safe working loads. Panels can shift or rotate during lifting if rigging points are not properly balanced, potentially causing loss of control or striking shaft walls. Wind effects in shafts with external openings can destabilise suspended panels. Workers at lower shaft levels are directly below suspended loads throughout lifting operations, creating struck-by hazards if panels fall. Limited shaft width means lifted panels pass very close to shaft walls, elevator guide rails, and installed equipment, increasing potential for contact causing panel destabilisation or damage to lifting equipment. Communication difficulties between workers at different shaft levels due to distance and noise can lead to coordination failures during critical lifting operations.
Consequence: Fatal injuries to workers struck by falling glass panels, severe lacerations from broken glass fragments throughout shaft void, crushing injuries if falling panels strike workers at lower levels, and catastrophic damage to installed elevator equipment or building structure from impact of falling heavy glass panels.
Crushing Between Glass Panels and Shaft Walls
HighThe confined workspace within elevator shafts creates severe crushing hazards as large heavy glass panels are manoeuvred into position within clearances often less than 100mm between panel edges and shaft walls. Workers must position themselves within this restricted space to guide panels into structural fixings, verify alignment, and install connections whilst panels weighing hundreds of kilograms are suspended by lifting equipment or supported by temporary bracing. If panels swing or shift unexpectedly due to wind loads, inadvertent contact with shaft structure, or lifting equipment movement, workers between panel and shaft wall face crushing with no escape path due to confined space. Hands and fingers are particularly vulnerable as workers reach between panels and structure to install fixings, insert packers, or adjust alignment. Communication difficulties between workers controlling lifting equipment and workers positioning panels can result in unexpected panel movement whilst workers are in crush zones. Inadequate temporary support or bracing allows panels to shift after initial positioning, creating crushing hazards during fixing installation. Some installations require workers to work from both sides of panels simultaneously, with workers on opposite sides unable to see each other's positions relative to crush hazards. Limited illumination within shafts reduces visibility of hand and body positions relative to moving panels.
Consequence: Severe crushing injuries causing broken bones, crushed hands or fingers requiring amputation, internal injuries from torso crushing between panels and walls, and potential fatalities if workers' heads or chests are trapped between heavy panels and unyielding concrete shaft walls.
Confined Space Hazards Including Oxygen Deficiency
HighElevator shafts are classified confined spaces under Australian WHS regulations due to limited access and egress points, inadequate natural ventilation, and potential for accumulation of hazardous atmospheres. Shafts extending multiple storeys create vertical confined spaces where atmospheric conditions can vary significantly between levels. Oxygen deficiency can develop in shaft voids from consumption by combustion processes, displacement by heavier gases accumulating in shaft pits, or biological oxygen consumption in contaminated spaces. Toxic or flammable atmospheres can accumulate from welding fumes, chemical vapours from sealants and adhesives, paint fumes from concurrent finishing trades, or exhaust gases from petrol or diesel equipment used within or near shafts. The natural stack effect in tall shafts can draw contaminated air from lower building levels into shaft voids. Lack of cross-ventilation means atmospheric contaminants are not naturally dispersed. Workers entering shaft voids without atmospheric testing and continuous monitoring risk unconsciousness from oxygen deficiency with very rapid onset, typically causing collapse within seconds to minutes of exposure. Toxic gas exposure can cause acute poisoning or asphyxiation. The vertical configuration and confined access make emergency rescue extremely difficult, with rescue personnel facing the same atmospheric hazards whilst attempting to retrieve unconscious workers from depth.
Consequence: Fatal asphyxiation from oxygen-deficient atmospheres causing unconsciousness and death within minutes, acute poisoning from toxic gas exposure, secondary injuries from falls or other incidents caused by impaired consciousness or judgment from atmospheric exposure, and potential for multiple fatalities including rescue personnel if confined space procedures are inadequate.
Struck-by Falling Tools and Materials Within Shaft
HighWork occurring simultaneously at multiple levels within elevator shafts creates severe struck-by hazards as tools, fixings, glass offcuts, and materials dropped from upper levels can fall multiple storeys through the shaft void, striking workers at lower levels with potentially fatal force. Even small items such as drill bits, screws, or hand tools achieve lethal velocity when falling from height. Glass offcuts and broken glass fragments from installation activities create widespread struck-by and laceration hazards throughout shaft void. The confined vertical nature of shafts means objects dropped from above have limited horizontal dispersion, making avoidance by workers below nearly impossible. Workers focused on precision installation tasks may not observe falling objects until impact. Hard hats provide some protection but are inadequate against heavy tools or materials falling from significant heights. Temporary work platforms at different shaft levels may provide some protection to workers below but gaps between platforms and shaft walls, and openings for material passage allow falling objects to pass to lower levels. Tool tethers and lanyards can prevent tool drops but are often not used due to perceived inconvenience in confined working spaces. Multiple trades working within shafts simultaneously, including glaziers, elevator installers, and electrical contractors, increases the number of workers and variety of materials creating struck-by hazards.
Consequence: Fatal head injuries from struck-by incidents involving tools or materials falling from significant heights, severe lacerations from falling glass fragments, fractures and crush injuries to shoulders and extremities struck by falling objects, and potential for multiple workers to be injured simultaneously if large items fall through shaft void.
Entanglement with Elevator Guide Rails and Cables
MediumElevator shafts contain substantial mechanical and electrical infrastructure including steel guide rails extending vertically the full shaft height, elevator suspension cables or hydraulic rams, counterweight systems with cables and weights, travelling cables supplying power to elevator cars, limit switches and safety equipment, and various brackets and fixings projecting from shaft walls. Glass installation work within shafts requires workers and materials to be manoeuvred around this equipment in confined spaces, creating entanglement, striking, and snagging hazards. Workers carrying or positioning large glass panels can inadvertently contact guide rails or cables, potentially damaging critical elevator safety equipment. Clothing, tool lanyards, or fall arrest equipment can snag on projecting brackets or cable fixings. Suspended loads being lifted through shaft voids can contact and damage guide rails or become entangled with cables. Some elevator installations have counterweights travelling in the same shaft void as glass installation work, creating crushing hazards if elevator systems are inadvertently activated during glazing work. Inadequate lighting makes it difficult to identify and avoid protruding equipment. Workers unfamiliar with elevator system components may not recognise which items are critical safety equipment requiring protection from damage or contact. Damaged guide rails can cause elevator malfunction or failure, creating serious safety risks for building occupants and elevator maintenance personnel.
Consequence: Personal injuries from entanglement including lacerations, crushing if caught between moving counterweights and structures, falls if fall arrest equipment snags and pulls workers off balance, and potential for serious elevator safety failures if guide rails or safety equipment are damaged during glass installation, creating liability for subsequent elevator incidents.