Steps to build a retaining wall: Know the lay of the land - contact Dial Before You Dig Draft your wall design Finalise plans and mark out area Excavate area and trench Lay and compact road base Lay steel bar grid/mesh and set up wooden forms Pour footing - lay cement and sand mix Screed and level the cement/sand mix Lay first row of bricks Fill first layer of bricks with blue metal aggregate Optional - Install drainage pipe Lay remaining layers of bricks Remove lugs from top layer Install caps Allow everything to dry
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The $220 million Geelong Precinct and the Two Towers at Collins Wharf are amongst the latest projects to be fast-tracked by the Victorian Government in an effort to boost the state's economy.
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Vacuum excavation, also referred to as hydro excavation or Non-Destructive Digging, is the process of combining high-pressure water with an air vacuum. Vacuum excavators are used to remove unwanted material from an area, mainly mud, dirt and slurry from around underground utilities. What is a vacuum truck? Vacuum excavation trucks (which are also known as sucker trucks, suction excavators or vac trucks) are primarily used to safely excavate around cable networks and buried pipelines. Vac trucks can also be used for emergency repair of utility and pipeline networks, rail track maintenance, deep excavation, confined spaces, sewer clearance, clearing around tree roots, basement work and more. They’re also commonly used for environmental maintenance, including clearing away any environmental damage and cleaning blocked gullies and gutters on the street. Vacuum trucks are unique trucks fitted with a compressed air lance, waste storage chamber, vacuum suction, and twin or triple air vehicle fans. These trucks are used for general excavation work where the soil is broken up and dispersed with a high-pressure, compressed air lance and then sucked back up into the truck to be held for later disposal. Vacuum excavation trucks are also known as sucker trucks, suction excavators or vac trucks. These vehicles come in a range of different tank sizes with the most common being 3000L and 6000L. There’s really no comparison between conventional excavators and vacuum excavators in terms of efficiency, as vacuum excavators can achieve up to sixteen times the output, depending on the type of materials the machines are working with. Other uses for vacuum trucks include safely excavating around cable networks and buried pipelines, emergency repair for utility and pipeline networks, rail track maintenance deep excavation, confined space excavation, sewer clearance, clearing around tree roots, basement work and more. Vacuum trucks are also commonly used for environmental maintenance, including clearing away any environmental damage and cleaning blocked gullies and gutters on the street. Vacuum excavation serves many purposes with the most common centred on digging and collecting dirt around an underground utility or cable, without using traditional digging tools or machines. This process has become popular in recent decades as it alleviates the risks commonly associated with conventional digging via excavator and shovel. Using non-destructive digging techniques like vacuum excavation and hydro excavation has proven to significantly mitigate the risk of line strikes and utility damage, while also decreasing project time, across the world.Vacuum excavation is an excavation technique that uses a combination of air suction, compressed air lances, and high-pressure water jets to safely expose underground utility cable networks, buried pipelines, and even dated railways tracks for emergency repair, removal, and inspection.
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