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50 articles tagged with Failure
A Greater Anglia passenger train derailed near Wickford, Essex, on 14 August, the second derailment on England’s network in 48 hours after a separate incident at Lewes on 13 August. Both events occurred on conventional mixed-traffic routes, raising immediate questions over track condition, geometry control and inspection regimes on secondary lines. Investigators will focus on rail integrity, ballast condition and recent maintenance records, with potential implications for speed restrictions, tamping and renewal priorities across similar UK routes.
A Southern Rail passenger train derailed near Lewes, East Sussex, at about 15:55 on 13 August, prompting Network Rail to deploy specialist inspection and track engineering teams. Crews are assessing potential damage to rails, sleepers, ballast and signalling assets, and checking for any misalignment or deformation of the formation that could affect line speed and gauge. Findings will determine the extent of re-railing, tamping, ballast renewal or signalling repairs required before services can safely resume.
Fourteen illegal chrome miners were found dead and at least eight injured after a cave-in near an abandoned shaft by the Nkaneng informal settlement, close to Marikana in South Africa’s North West province, with the collapse estimated around 21:00 on Monday. Police have intensified action against illegal chrome operations in the province, seizing 20 trucks and 15 excavators over the past two years and arresting survivors on suspicion of illegal mining. The incident underlines ongoing geotechnical and safety risks where informal miners re-enter abandoned gold, platinum and chrome workings without ground support or regulated access control.
Northumberland contractor Len Smith & Son Building Contractors Limited has been fined £20,000 after a bricklayer fell approximately 2.4 m through a fragile roof onto concrete, sustaining two fractured vertebrae. HSE inspectors found there was no safe system of work, with no edge protection, staging, crawling boards or fall-arrest measures in place for accessing the fragile roof surface. The case signals continued regulatory focus on temporary works design and formal method statements for work on fragile roofing elements.
North Bridge at Junction 6 of the M42, closed to traffic since July, will be demolished after detailed inspections found significant concrete deterioration and embedded steel at risk of further corrosion. National Highways engineers judged that continued degradation of the reinforced concrete elements could not be managed through interim strengthening or load restrictions. The decision signals likely need for a full replacement structure at this key motorway junction, with geotechnical and traffic management planning now critical to minimise disruption during demolition and reconstruction.
Network Rail has reopened the key Cardiff–Newport main line after an “incredibly harmful” lineside fire on 1 August destroyed signalling and power equipment, with engineers working 24/7 for a week to complete emergency repairs. Teams replaced damaged lineside cabling, location cases and signalling control systems, and installed temporary power supplies to restore safe operations on this high‑traffic South Wales corridor. The incident underlines the vulnerability of densely serviced rail corridors to fire and the need for robust cable routing, fire‑resistant materials and contingency signalling plans.
A major bridge strike has forced the closure of Marston Lane near Nuneaton, Warwickshire, beneath a structure carrying the West Coast Main Line, with the road shut to traffic until at least November while permanent repairs are carried out. Network Rail engineers now face prolonged inspection, structural assessment and remedial works on the rail-over-road bridge to confirm residual capacity and restore clearance for highway vehicles. The incident will prompt renewed scrutiny of impact protection, headroom signage and bridge strike mitigation on key mixed-traffic corridors.
Suspended development of the Andes Norte section at Codelco’s El Teniente, triggered by new studies of an “emerging seismic phenomenon” at greater depth, may last up to two years and follows a July 2025 rockburst equivalent to magnitude 4.2 that killed six workers in adjacent Andesita and Teniente 7 panels. El Teniente’s output is already about 27% lower year-on-year and Codelco has conceded its 1.7 Mt/y copper target for 2030 is unattainable, tightening a market where CRU reports one LME participant holding 50–79.99% of live copper warrants. Comex September copper hit an intraday record of $6.7045/lb as Chile posted its weakest Q2 copper production in nearly 20 years, with traders diverting metal into the US ahead of possible tariffs.
Ferrexpo has halted all iron ore mining and pellet production at its Horishni Plavni complex in central Ukraine after Russian attacks on Black Sea shipping, including a drone strike on a third-party vessel carrying 55,000 tonnes of direct-reduction-grade pellets, killed one crew member and forced the ship out of the war-risk zone. The company, formerly the world’s third-largest pellet exporter, produced only 1.56 million tonnes in H1 2026 (down 54% year-on-year) with one of four pellet lines running and now has just enough accessible cash to operate until mid-September without fresh funding. Ferrexpo is seeking at least $100 million in equity while $90.3 million in withheld VAT refunds and bankruptcy proceedings at Ferrexpo Poltava Mining compound liquidity and asset-control risks for European steel supply chains reliant on high-grade pellets.
War-fractured Myanmar has become the world’s largest supplier of heavy rare earths, with Chinese companies running largely unregulated in-situ leaching operations in autonomous border regions such as Kachin and eastern Shan, guarded by ethnic armies including the United Wa State Army. Workers like “Min” are paid about 3,000 yuan (£330) per month for roadbuilding and pit work on steep slopes, amid frequent fatal landslides and exposure to toxic lixiviants that have poisoned rivers and farmland. Ore is trucked into China, mixed with other feedstocks and effectively laundered into global supply chains for EVs, wind turbines and advanced weapons, while revenues fund more than 1,200 armed groups in an already fragmented civil war.
Former Autostrade per l’Italia CEO Giovanni Castellucci has been sentenced to 12 years’ imprisonment, alongside convictions for 31 others, over the 2018 collapse of Genoa’s Morandi Bridge that killed 43 people and injured 13. The ruling centres on failures in managing the ageing cable-stayed structure’s stay-cable and deck corrosion, with prosecutors arguing that critical maintenance and strengthening were delayed despite known deterioration. For designers and asset managers, the case signals heightened personal liability where structural health monitoring, inspection records and intervention decisions do not match documented risk.
National Highways has closed the North Bridge at M42 Junction 6 to all traffic after monitoring showed repeated breaches of its 7.5t weight restriction. The structure, which carries local traffic over one of the West Midlands’ busiest motorway junctions near Birmingham Airport and the NEC, will remain shut while engineers assess potential overstress and fatigue damage. Diversions are expected to load adjacent links and junctions, so asset managers will need to watch for knock-on pavement and structural impacts on alternative routes.
Cameco has temporarily suspended mining at the Cigar Lake uranium mine in northern Saskatchewan after a sulfuric acid plant failure forced shutdown of Orano’s McClean Lake mill, which normally processes the ore. The McClean Lake facility, 70 km northeast of Cigar Lake and one of the world’s largest uranium plants with 24 million lb/year concentrate capacity, is expected to restart in about two weeks, with Orano seeking interim acid supply. Cameco, which has produced 174.5 million lb of yellowcake from Cigar Lake since 2014, says its 2026 output guidance remains unchanged unless delays extend.
HS2 joint venture SCS, formed by Skanska Construction UK, Costain and Strabag, has been fined £400,000 after a tipper truck drove off the edge of an excavation ramp at the Copthall North site, injuring its driver. The incident involved a fully loaded tipper leaving the unprotected ramp edge during bulk earthworks, pointing to deficiencies in temporary works design and haul road edge protection. Contractors on major infrastructure schemes will likely face closer scrutiny of excavation ramp geometry, barrier systems and traffic management for heavy earthmoving plant.
Lima Construction Limited has been fined £50,000, plus £11,347 costs, after worker Antonio Rodrigues fell three metres through an unglazed, unprotected Juliet-door window void onto an internal concrete floor during a former department store redevelopment in New Malden. The HSE found the principal contractor failed to install temporary boarding or internal scaffold guard rails over the newly formed openings and stopped carrying out the legally required weekly scaffold inspections after 5 July 2022. Inspectors stressed that straightforward edge protection at the time the voids were created would likely have prevented the fatal fall.
Two shallow earthquakes of magnitude 7.1 and 6.8 struck near Caracas and La Guaira within hours, collapsing mid‑rise reinforced concrete apartment blocks and older unreinforced masonry in hillside barrios, with hundreds confirmed dead and thousands displaced. Liquefaction, lateral spreading and rockfalls have damaged key transport links, including sections of the Caracas–La Guaira motorway and port access roads, complicating access for rescue equipment and temporary shoring. Geotechnical teams are racing to assess slope stability on steep, weathered tropical soils and to prioritise demolition versus retrofit of heavily cracked shear‑wall structures.
A joint venture contractor on HS2 has been fined £400,000 after a 20 t tipper truck left the edge of an excavation ramp, leaving the driver with multiple serious injuries. The incident involved a temporary earthworks access ramp where the truck overran the unprotected edge and rolled into the excavation. The case signals renewed scrutiny of haul road and ramp design, edge protection, and traffic management on major UK infrastructure sites, particularly for heavy earthmoving plant.
Pothole-related breakdowns reported to the RAC in February averaged 225 per day, more than five times the 2025 daily average of 43, signalling rapid deterioration of UK carriageway surfaces. The spike points to accelerated fatigue and ravelling in asphalt layers under repeated freeze–thaw and heavy axle loads, with defects progressing from fretting to full-depth potholes before scheduled maintenance cycles. For highway engineers, the figures reinforce the need to reassess intervention thresholds, drainage performance and resurfacing frequencies within constrained local authority budgets.
A preliminary Rail Accident Investigation Branch report finds East Midlands Railway service 1H46 from Corby to London St Pancras passed a red signal at Bedford and struck stationary service 1B67 from Nottingham at 79km/h. The collision occurred on the Up Slow line north of Bedford station, damaging both Class 360 EMUs and overhead line equipment but causing no fatalities. Investigators are examining signal aspect sequences, driver actions, and the performance of the Train Protection & Warning System and associated braking behaviour.
A fatal train crash near Bedford on 19 June has prompted transport secretary Heidi Alexander to tell the House of Commons that the UK still has one of the safest railway networks globally. She confirmed that the Rail Accident Investigation Branch and Office of Rail and Road are opening formal investigations into the incident, alongside British Transport Police inquiries. Engineers can expect scrutiny of track condition, rolling stock performance and signalling interfaces on the affected section, with any interim safety recommendations likely to be implemented rapidly across comparable assets.
Underground operations at Newmont’s Cadia mine in New South Wales have been halted for the second time in nine weeks after magnitude-3.2 and 3.4 earthquakes struck the site early Friday, with the latter event occurring about 1 km below surface. Cadia, a panel-cave operation producing roughly 385,000 oz of gold and 82,000 tonnes of copper annually and contributing about 11% of Newmont’s net asset value, had only recently undergone a five-week rehabilitation to restore output to 80% capacity after an April magnitude-4.5 tremor. RBC warns that recurring seismicity introduces material safety, production and regulatory uncertainty for the long-life operation, currently approved to 2031.
A 2024 passenger train collision in Wales that killed one passenger has been attributed by the Rail Accident Investigation Branch primarily to low wheel–rail adhesion, with additional contributory factors. Investigators point to severely reduced braking performance on contaminated railhead conditions, where the train was unable to stop within the expected braking distance for the approach speed. The findings will likely drive closer scrutiny of railhead treatment regimes, adhesion management strategies and braking assumptions in signalling and approach control design on similar UK routes.
Alamos Gold expects second-quarter output from its Young-Davidson underground mine in northern Ontario to fall to 130,000–135,000 oz, about 12% below prior guidance, after two seismic events damaged infrastructure and cut access to two higher-grade stopes, compounded by a three-day storm-related power outage. Consolidated 2026 production is now projected below full-year guidance with unit costs rising, with revised figures due in July. Production stability is shifting to the Island Gold District, where underground mining rates are planned to increase from 1,500 to 2,000 t/d and the Magino mill ramp-up targets 10,000 t/d by Q3.
Ardmore Construction Group and related entities, including Ardmore Major Projects, Ardmore Fitout, Ardmore Regeneration, Landmark Facades and Ardmore Hotels & Commercial, have entered administration and ceased trading, with licensed insolvency practitioners from BTG and Panos Eliades Callender & Co. appointed on 11–12 June 2026. Around 275 staff have been made redundant, with the joint administrators coordinating DWP engagement and Redundancy Payments Service claims. BTG Eddisons and specialist quantity surveyors are inspecting live sites to secure assets, assess health and safety conditions and stabilise project interfaces.
Improvement notices have been served by the Office for Nuclear Regulation to EDF and Trillium Flow Services UK Ltd after potential asbestos exposure during a March 2026 valve overhaul on the steam system at Torness Nuclear Power Station, East Lothian. ONR found asbestos had been identified and removed from a similar valve in 2024 but not entered into the site asbestos register, which is meant to be the central record for location and condition of asbestos and was reportedly not consistently consulted in maintenance planning. EDF has suspended all in-house asbestos removal while it addresses failures under the Health and Safety at Work etc Act 1974 and Control of Asbestos Regulations 2012, with Trillium also cited for inadequate work-log close-out and pre-maintenance asbestos assessment.
Temporary platform collapse on a Roots Contractors Limited site left drilling operative Steve Zschoch with a fractured neck after he was “folded up like a concertina” beneath the failed structure while working for subcontractor Diacutt Limited. Both firms have now been fined for safety failings relating to the design, installation and verification of the temporary working platform, which was being used for drilling operations. The case reinforces the need for formal temporary works design checks, competent supervision and load-path verification for access platforms on small civil and infrastructure projects.
Sinkholes discovered by Network Rail engineers on a rail bridge outside Purley have forced the closure of all lines between Purley and East Croydon, severing direct rail links between central London and Gatwick Airport. The defect was identified during planned engineering works, prompting immediate suspension of services on this key section of the Brighton Main Line. Geotechnical teams now face urgent investigation of foundation conditions and void extent beneath the bridge, with stabilisation and monitoring requirements likely to dictate the duration of disruption.
Esso has been fined £1M by the UK Health and Safety Executive after 2.4t of highly flammable liquefied petroleum gas leaked from ageing plant at ExxonMobil’s Fawley Refinery due to failures in managing equipment integrity. The incident, which exposed workers to “life-threatening risks”, stemmed from inadequate inspection and maintenance of pipework and associated fittings in a hazardous area of the site. Process safety engineers and asset managers are likely to face closer scrutiny of inspection regimes, corrosion monitoring, and lifecycle replacement strategies for high-pressure LPG systems.
A magnitude 7.8 earthquake struck offshore Mindanao, Philippines, at a depth of about 32 km, killing at least 19 people and injuring more than 130 across Surigao del Sur, Davao Oriental and neighbouring provinces. Strong shaking triggered widespread liquefaction, lateral spreading and coastal slope failures, damaging bridges, port facilities and low-rise reinforced concrete buildings with soft-storey behaviour. Engineers are prioritising rapid assessment of pile-supported structures on reclaimed land, stability of coastal embankments and the integrity of lifeline corridors linking key mining and agricultural areas.
Alchemist DB Limited has been fined £20,000 plus £5,000 costs at Luton Magistrates Court after 35-year-old labourer Mykhalio Hustei died in October 2021, falling into a rainwater-filled foundation trench on a Bovington High Street flat development. An HSE investigation found criss-crossing excavation footings with no designated safe walkways, workers using unsecured, handrail-free boards and planks that bowed and became slippery in wet weather, and no dedicated site lighting. Only after enforcement did the firm install scaffold-framed walkways over exposed excavations, as required under CDM 2015 Regulation 22(2).
South West Water has been fined £1.85M at Exeter Magistrates’ Court after a Cryptosporidium contamination at the Hillhead treatment works left tens of thousands of Devon customers without potable tap water in summer 2026. The DWI prosecution centred on failures in disinfection and monitoring barriers required under the Water Supply (Water Quality) Regulations, including inadequate protozoa control and delayed public notification. Other water companies are now ramping up enforcement and risk reviews of treatment works, with particular focus on UV systems, filtration integrity and contingency planning for microbial outbreaks.
Boroo has entered a 90‑day exclusivity agreement with PwC to conduct due diligence on acquiring the landslide‑damaged Eagle gold mine in Yukon, where a June 2024 heap leach pad failure released millions of tonnes of ore and at least 280,000 m³ of cyanide-bearing solution. PwC previously valued Eagle’s assets at nearly C$825 million against about C$458 million in accident-related liabilities, while a 2023 mine plan outlined 124 million tonnes at 0.65 g/t Au (2.58 Moz contained) over a 12‑year life. Boroo brings heap leach experience from Lagunas Norte and Mongolian operations, backed by US$300 million in senior secured notes, but must still secure Yukon government and Na‑Cho Nyäk Dun approvals.
Glencore’s Cerrejón mine in La Guajira, one of the world’s largest open-pit coal operations, has halted mining, rail and port activities and declared force majeure after a community blockade cut fuel and coal movements on the railway to Puerto Bolívar from 23 May. Cerrejón, which produced 16.8 Mt in 2025 and has faced nearly 80 blockades this year (333 in 2024, plus nine terrorist attacks), has suspended most employment contracts while maintaining staff for maintenance and environmental controls. The dispute centres on constitutional rulings, water access, renewable energy projects and royalty distribution, signalling persistent social and regulatory risk for Colombian coal, whose national output fell to 53.9 Mt in 2025.
Activist fund Elliott Investment Management has confirmed a roughly A$1 billion stake in Northern Star Resources, giving it about 4% of the ASX-listed gold producer and placing it among the top five shareholders alongside Van Eck and BlackRock. Elliott is pushing for a new mining-experienced board, an external CEO and a formal strategic review, citing “repeated operational missteps”, cost overruns and “deeply inadequate disclosures” at assets including the KCGM open pit in Kalgoorlie. The move follows two production downgrades in 2026, supply issues at KCGM and a share price fall of up to 30% this year despite strong gold prices.
Saudi Arabia’s Neom gigaproject, which bundles five megaprojects including the 170km-long linear city The Line, appears to have stalled completely, according to a public relations professional who previously represented the scheme. The reported pause raises fresh uncertainty over large-scale enabling works, including desert earthworks, coastal reclamation and deep foundation packages already tendered or partially mobilised. Contractors and consultants with exposure to Neom’s early-stage infrastructure may now face demobilisation, contract renegotiation and delayed cashflow on geotechnical investigations, transport corridors and utilities corridors planned for the site.
Metropolitan Police say they remain on schedule to submit full Grenfell Tower fire charging files to the Crown Prosecution Service by the end of September, nearly 10 years after the 2017 disaster. The investigation has reviewed the roles of 15,000 individuals and 700 organisations, with 57 people and 20 organisations now suspected of offences including gross negligence manslaughter, misconduct in public office, fraud and health and safety breaches. Evidence gathered includes 165 million electronic files, 14,400 witness statements and over 27,000 physical exhibits such as cladding, insulation, doors and windows.
A 10 August 2025 rockslide in Alaska’s Tracy Arm Fjord sent more than 64 million m³ of rock and debris into the water, generating a megatsunami with an estimated maximum run-up of about 481 m along the steep fjord walls, the second-highest recorded after Lituya Bay 1958. The failure was linked to support loss from South Sawyer Glacier’s retreat, with the narrow fjord geometry strongly amplifying wave heights. No casualties occurred, but the near miss for cruise traffic signals a rising landslide–tsunami hazard in deglaciating fjords that must be factored into navigation and infrastructure risk assessments.
Freeport Indonesia has pushed back Grasberg’s full production restart to early 2028, after a September mudflow in the Grasberg Block Cave killed seven workers, halted underground mining and triggered force majeure on shipments. The complex, which previously supplied about 3% of global copper (1.7 billion lb/year) and 1.4 million oz/year of gold, is currently operating at roughly 40–50% capacity, with copper output for 2026 now guided at 700 million lb versus a prior 1‑billion‑lb target. Ramp-up targets have been reset to 65% capacity in H2 2026 and 80% by mid‑2027, as additional logistics and ore-handling infrastructure work proceeds.
Transport for NSW is shortlisting engineering solutions to reinstate Mitchells Causeway on the Great Western Highway after a defect in the pavement over the structure forced closure of Victoria Pass on 12 March. Subsequent investigations identified serious stress fractures forming in the westbound lanes, prompting a $50 million New South Wales Government package to upgrade key detour routes now carrying diverted traffic. Geotechnical and structural options for the causeway will need to address cracking behaviour under heavy freight loads and steep Blue Mountains topography while maintaining network resilience during works.
BHP has been denied permission by London’s Court of Appeal to challenge a High Court ruling that found it liable under Brazilian law for the 2015 Fundão tailings dam collapse at the Samarco iron ore operation in Mariana, which killed 19 people and contaminated the Rio Doce for hundreds of kilometres. The decision clears the way for a two-year UK damages process, with a Stage 2 compensation trial scheduled for April 2027 and final awards potentially extending beyond 2030. BHP points to a roughly $32 billion Brazil settlement and remediation programmes that have already compensated more than 625,000 people, with about 240,000 claimants discontinuing UK claims after indemnification in Brazil.
A methane and coal dust explosion at the La Ciscuda underground coal mine in Colombia’s central Cundinamarca province has killed nine workers and injured six, only weeks after the national mining agency (ANM) warned of gas accumulation risks at the site. The mine, operated by Carbonera Los Pinos, had been subject to ANM inspection visits focused on methane build-up and dust control, which the agency says can become dangerous if not properly managed. The incident again exposes ventilation, gas monitoring and dust suppression weaknesses at smaller Colombian coal operations, despite the country’s status as a major thermal coal exporter led by Glencore’s Cerrejón mine.
Lion One Metals shares fell over 30% to C$0.14 after cancelling a C$15 million private placement with Arete Capital Advisors and announcing the exit of CEO Campbell Olsen just two months into the role. The Arete deal would have issued 44.26 million units at C$0.34, each with a warrant at C$0.39, and included a master services agreement making Arete operator of the Tuvatu underground gold mine in Fiji. Tuvatu, designed for about 331,400 oz/year over five years, produced only 4,200 oz last quarter amid equipment, power and development constraints, while Lion One faces a senior loan default notice from Nebari and a shareholder move to remove directors.
Flood and coastal defence assets are facing mounting maintenance backlogs as ageing embankments, culverts and sea walls are exposed to more frequent, higher-intensity storm events. Experts warn that current operational budgets and short funding cycles prevent timely renewal of critical structures such as tidal barriers, pumping stations and flap valves, increasing failure risk under extreme water levels. They call for a shift from reactive patch repairs to long-term, whole-life asset management with multi-year funding settlements to support planned inspections, resilience upgrades and adaptive design.
The 1911 Tees Transporter Bridge in Middlesbrough has been named on the Victorian Society’s 2026 Top 10 Endangered Buildings list, signalling serious deterioration in one of the UK’s last working transporter bridges. The 259m-long steel structure, which carries vehicles and pedestrians across the Tees via a suspended gondola, now faces major repair and corrosion-management challenges typical of century-old riveted trusses and mechanical lifting gear. For asset managers, the listing intensifies pressure to secure funding, define viable strengthening strategies and manage operational risk.
Boroo has entered a 90-day exclusivity agreement with receiver PricewaterhouseCoopers to negotiate the purchase of Victoria Gold’s Eagle gold mine in Yukon, about 375 km north of Whitehorse, after the June 2024 heap leach pad collapse released millions of tonnes of ore and at least 280,000 m³ of cyanide-bearing solution. PwC previously valued Eagle’s assets at about C$824.7 million and has Yukon government authorisation for C$220 million in clean-up spending. Boroo will now complete due diligence and negotiate restart terms with Yukon and the First Nation of Na-Cho Nyäk Dun.
A landslide in northern Peru has forced the evacuation of more than 170 residents after continued ground movement destabilised a hillside settlement, with local authorities warning the slope remains active and at risk of further failure. Civil defence teams report tension cracks and progressive deformation upslope of the initial slip, prompting a red alert and temporary closure of nearby access roads. Geotechnical teams are now monitoring displacement and rainfall, with short-term controls focused on exclusion zones rather than immediate slope stabilisation works.
B2Gold’s Goose mine in Nunavut will cut Q2 gold output guidance to 18,000–20,000 oz. after an April 16 fire damaged the fixed crushing circuit, temporarily reducing throughput from the 4,000 t/d design capacity. Damage is confined to the crushing area, with the mill and power plant unaffected, and the company is switching to on-site mobile crushers plus additional hired temporary crushing capacity while repairs, budgeted at about C$10 million, run to Q3 alongside installation of a new run-of-mine bin and apron feeder.
A Worcestershire vehicle maintenance firm has been fined £30,000 plus £4,325 in costs after a worker was crushed beneath a one-tonne concrete block, sustaining what the court described as “devastating” injuries. The incident involved a precast block used on the company’s site, with inadequate control of lifting and securing operations identified as the core failure. The case signals continued regulatory pressure on small depots and workshops to apply full CDM- and LOLER-level rigour to handling heavy concrete units and temporary yard structures.
A parliamentary petition is demanding a full public inquiry into how national and local government managed the 2023 reinforced autoclaved aerated concrete (Raac) crisis in public buildings. The move follows widespread emergency closures and propping of schools and other structures where Raac roof and floor planks, typically installed from the 1950s to 1990s, were found at risk of sudden shear and bearing failure. An inquiry could scrutinise inspection regimes, structural assessment criteria and decision-making thresholds used to classify Raac elements as critical.
Newmont has suspended underground operations at the Cadia gold mine near Orange, New South Wales, after a magnitude-4.5 earthquake struck west of the site overnight, triggering geotechnical inspections. The company is assessing ground support, backs and pillars in the panel cave and other underground workings before allowing personnel re-entry, while surface processing and other non-underground activities reportedly remain largely unaffected. The event will focus attention on seismic design criteria, rock mass characterisation and monitoring systems for deep block and panel cave operations in intraplate seismic regions.