They have often been referred to as survey color codes, survey flag colors, color codes for underground concrete, utility location pain codes and utility locate color system. Top Quality NZ Made Materials Used . Email Us. 0000036455 00000 n Is the space between the trench and the spoil heap clear of pipes, bricks, stones, tools, etc? finding out about the current use and ground history of the work site before assessing any risk, investigating and testing if a dangerous atmosphere will be present or is likely to be present, determining if any live services, proximate water courses, or isolation failures could cause sudden flooding of the excavation, changes in conditions during work (ie disturbing sediment). Items of mobile plant (including earthmoving equipment), not originally designed as a crane, and used for load-lifting incidental to their principal function are entirely exempt from the Health and Safety in Employment (Pressure Equipment, Cranes, and Passenger Ropeways) Regulations 1999 subject to the following conditions (10) as applicable: (10) Notice Under the Health and Safety in employment (Pressure Equipment, Cranes, and Passenger Ropeways) Regulations 1999 (24 September 2015) 104 New Zealand Gazette(external link). View the Council's major roading and underground services work. 0000033833 00000 n Consider having ground investigations and geotechnical assessments for excavations that are complex or may affect nearby structures or harm workers and others nearby. When you need power cable installation, network connections, power cable fault location and repairs, or trenching for underground services installation etc, we guarantee you’ll be in safe hands Gerard McNeil, the director of PowerCable Direct, had spent more than 4 years with Electricity Ashburton training to become a fully qualified Line Mechanic before beginning his own company back in 2003. A competent person should frequently check the soil condition and the state of shoring, benching, battering, and excavated faces for signs of earth fretting, slipping, slumping, or ground swelling. When mechanical haulage is used in small drives or manholes, excavate refuges into the side of the drive to provide shelter from passing traffic. The influence of any loads near the excavation can cause ground collapse. placement of excavated materials, plant or other loads, presence of or possible inrush of water or other liquid, hazardous substances (eg those present in the soil), respirators – fi tted and maintained correctly, using lifting devices (eg hiabs, cranes, trolleys), inspecting to find out what might affect the stability of the excavation (an excavation face can appear stable for 24 hours, but may be unstable), electricity, gas, sewerage, telecommunications, water, services, chemicals, fuel or refrigerant in pipes or lines, trace and mark out services – detecting and marking actual layout, contingencies for excavations including emergencies, assume services are present until proven otherwise, exposing and identifying what and where services are, deep cuts and steep slopes, by removing the natural side support of the excavated material, loads on the ground surface near the top of the face, such as excavated material, digging equipment or other construction plant and material, shock and vibration, caused by pile-driving, blasting, passing loads or vibration producing plant (eg compacting and drilling plant), water pressure from groundwater flow, which fills cracks in the soil, increases horizontal stresses and may undermine the excavation. 20mm, 25mm, 32mm, 40mm and 50mm NB PVC conduits colored orange or grey are manufactured in accordance with AS/NZS 2053.2:2001“Conduits and fittings for electrical Your council might have additional rules that need to be met. Guard any excavations to which the public has or might gain access. For more information on building legislation and controls, refer to the Ministry of Business, Innovation and Employment’s website www.building.govt.nz(external link). The competent person should design hydraulic support to resist the expected ground pressures and potential for collapse. This will decrease the need for changes in design and construction methods. For more information see WorkSafe’s special guide Introduction to the Health and Safety at Work Act 2015. The parts of a construction project that will be used and remain in position for a long time (eg 60 years). Know what’s under your feet! static and dynamic loads near the excavation, identifying all existing overhead and underground services, securing barriers or fencing to keep members of the public and other site workers away from the excavation site, what exposures might occur, such as noise, ultra-violet rays, falls or hazardous chemicals, possibility of unauthorised access to the work area, implementing a safe system of work or safety management system, identify hazards, assess and control risks, testing and checking for plant, equipment, and materials requirements, exclusion zones where powered mobile plant will operate. Excavation work generally means work involving the removal of soil or rock from a site to form an open face, hole or cavity, using tools, machinery or explosives. Use trench-shoring boxes and shields where access is available for an excavator or backhoe to install or extract it from a trench. Our plant has both manual and fully automated spray equipment to handle large production runs. %%EOF Consider ground pressures before installing hydraulic supports. The operator and spotter can use this as a guide. in the case of new and used hydraulic excavators with an operating weight of seven tonne or more, the following additional conditions apply: the equipment is not to be modified to make it operate as a crane other than the provision of a lifting point, the equipment is to have a loading chart available to operators, operators and ground support personnel are to be adequately trained, operations are to be carried out in accordance with the. Keep copies of current services plans on site. We offer a professional utility location service that is helping to set the standard in New Zealand for damage prevention. Send information to the services owners so they can update their service plans. via overhead powerlines in your street, there are a couple of options if you want to have fibre installed underground. In general, it means any person (including a legal entity) running a business or undertaking. To keep workers safe, temporary structural members may need to be installed before any removal begins. Using trench-shoring boxes and shields correctly makes it safe for workers entering the excavation, while protecting any nearby services or structures. any other incident declared in regulations to be a notifiable incident. a process to reduce the risk of unforeseen ground conditions. (2) In Regulations 24 and 25, the term employee, -, (a) in relation to an employer of the kind described in subclause (1)(a), means an employee of that employer; and. Check any local utility owners’ websites for additional procedures that may need to be met – look for headings like safety, working safely or public safety. design ground anchors in accordance with commonly accepted standards, for example: BS EN 1537 Execution of special geotechnical works – ground anchors, needing earthmoving machinery or vehicles to work or move beside the excavation, service installation and backfilling requirements, fall prevention devices (eg temporary work platforms, edge protection and guard rails) work positioning systems (eg industrial rope access systems), fall arrest systems such as catch platforms, using shoring itself (eg using trench box extensions or trench sheets taller than the excavation’s depth). Phone. Where shoring extends above 200 mm, toe boards are not required. Book Now. Develop response plans for workers and others safety in the event of a service strike. Slide-rail shoring is designed so no void is left in the ground after it is removed. H-pile shoring is normally used in large open excavations or pit excavations. Install ground anchors in grout fi lled drill holes. There may be a need to use multiple types. Other people at a workplace must take reasonable care of their own health and safety and that of others. Because of the large potential soil output and speeds of modern scrapers, pay careful attention to: Temporary haul roads should be well constructed and maintained to let plant operators complete the work safely. If a worker is in the excavation and bending over or crouching down at the time of the collapse, he or she may suffer serious injury. communicates with each other to identify hazards and risks, talks about any health and safety concerns, Shored,(2) benched and/or battered (eg shored) as per table 6, waller and brace solution up to 6 m in depth), Requiring detailed analysis of site, significant structural design analysis and sound engineering judgement, All sheet piled excavations (cantilevered, propped, or ground anchored), and excavations shored with H-pile shoring and lagging, Shafts and drives framed with timber or steel with poling boards, lagging or laths. Dangerous atmospheres can occur in excavations because of a lack of oxygen or the presence of toxic gases, flammable gases, or simple asphyxiates, for example: Table 8: Other potential sources of harmful gases from types of ground. Usually four-sided and deeper than the narrowest horizontal dimension at the surface. GET A QUOTE
Our Services. Small openings cut into the sides of trenches or shafts or elsewhere, for example, under roads. Complete Underground Services operates in New Zealand. Breaking ground? Use shoring designed and installed to carry extra loads, including groundwater pressures, saturated soil conditions and saturated spoil. Use appropriate materials to preserve the support and condition of the services. The USL shall classify the located underground services to allow the end user to place an appropriate reliance on the data and label the underground services information by the following quality classes on the DBYD plans as a part of the report. Are materials of the correct design size and quality? Bay Underground & Earthworks serves the Bay of Plenty area for underground trenching services, earthworks, drainage and cartage providing a quality result no matter the demands of our clients. A ground anchor is a structural element installed in soil or rock to transfer a tensile load into the ground. All work on a road or work that affects the normal operating condition of a road must have an approved TMP. Use plans, mark-outs, locators and safe digging practices when working near buried services. Self-propelled rubber-tyred scrapers can excavate and haul very large quantities of material economically over long distances at relatively high speed. 0000035983 00000 n When selecting the most appropriate dewatering technique, consider: Figure 44 and Figure 45 show two dewatering techniques. Prevent people and materials falling in – with barriers strong enough not to collapse if someone falls against them. Placing or stacking spoil near an excavated face puts workers at risk because it adds an extra load where it is placed or stacked. May 18, 2018 - With sophisticated underground service locators in New Zealand, Briton assists you with safe excavation & underground networks. 0000033474 00000 n shared workplace (eg a building site), where more than one PCBU and its workers control and influence the work on site. Pothole to determine service location and depth. Underground Service Locators: Cable Detection, cable locating, cable locator, ground penetrating radar. Conditions and saturated spoil site work and after any event that may affect its stability fracturing! Constructed using the ‘ dig and drop method and dragged along as work progresses site-specific factors, hazards the! – with barriers strong enough not to undermine nearby structures or harm workers and.! Site unattended for the job and it is not possible, use benching and battering on an in! Safety at work Act 2015 the plant and equipment used for: Zealand... 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