Your question: What needs to be done before you start to excavate?

Locate underground utilities, both used and unused lines, prior to commencing the excavation project – the safest way to do this is by hiring a utility locator company that will identify all the cables and pipes that run underground with the help of special tools and machines.

What you should do before you begin an excavation?

What you should do before you begin an excavation?

  • Identify the soil type(s) related to the excavation or trench you are going to dig. …
  • Look for the legislative requirements that apply in your jurisdiction and the type of protective measures to be taken.
  • Locate all buried services.

What are the steps of excavation?

The excavation process includes:

  1. setting corner benchmarks.
  2. surveying ground and top levels.
  3. excavation to the approved depth.
  4. dressing the loose soil.
  5. marking up the cut off level.
  6. the construction of dewatering wells and interconnecting trenches.
  7. marking the boundaries of the building.
  8. the construction of protection drains.

Which is the primary decision before beginning an excavation?

Decide if it is necessary to remove a structure in close proximity to excavation. Decide if the structure needs temporary support before digging starts.

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What do you need for an excavation?

What excavation equipment might be necessary for your project?

  1. Backhoe loader. These have an adjustable shovel in the front and a bucket in the back. …
  2. Bulldozer. You can think of this piece of machinery as the monster of the excavation industry. …
  3. Crawler loader. …
  4. Excavator. …
  5. Skid-steer loader. …
  6. Trencher.

At what depth do you need shoring?

Trenches 5 feet (1.5 meters) deep or greater require a protective system unless the excavation is made entirely in stable rock. If less than 5 feet deep, a competent person may determine that a protective system is not required.

How do you make an excavation plan?

An Excavation and Trenching Plan should include the following elements:

  1. A hazard assessment.
  2. Identification and credentials of competent person.
  3. Diagram or sketch of the area where the work is to be done, with adjacent and nearby structures shown.
  4. Projected depth of the excavation.

What is a deep excavation?

Deep excavations, on the other hand, are defined as being any excavation which is more than 4.5 metres in depth – a considerable height indeed. Deep excavations are trickier to plan and implement than shallow excavations, for a variety of reasons, which is why they tend to only be carried out by trained professionals.

What is the difference between excavation and trenching?

What is the difference between an excavation and a trench? OSHA defines an excavation as any man-made cut, cavity, trench, or depression in the Earth’s surface formed by earth removal. A trench is defined as a narrow excavation (in relation to its length) made below the surface of the ground.

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What is the minimum distance from the side of an excavation that material can be discharged?

The 1.2m rule for trenches used to be in older health and safety regulations and is often still quoted today. The basis of the rule is that, if a trench is under 1.2m deep, then people can enter the trench without the sides of the excavation being supported or battered back.

What are some dangers of excavation?

Top 5 excavation safety hazards

  • Cave-ins. Trench collapses kill an average of two workers every month, making this a serious threat to worker safety. …
  • Falls and falling loads. Workers and work equipment can fall into an excavated area. …
  • Hazardous atmospheres. …
  • Mobile equipment. …
  • Hitting utility lines.
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