How Are Trench Boxes Used?

Many constructions and engineering sites need trench-digging. They are used to lay telephone lines, pipes, or any other tubular structure that has to be put in deep underground, like oil rigs, for instance. Due to the high water content of these soils, trenching is often a tedious job. It is due to the fact that it’s hard to remove dirt and debris from surrounding objects but also to ensure the safety of your family members as you can cause serious injuries if you accidentally expose your skin.

Trench boxes are required for any type of repairs or construction work which requires access to the ground. Trench boxes can also be utilized to guard against collapse depending on the soil’s characteristics and the thickness of the soil. They are made of steel and aluminum framing that is employed to temporarily hold it in place as excavation occurs around them. Additionally, grout is placed between two layers to prevent cracks from forming on the surface.

Pre Installation

It is crucial to determine any potential risks before starting excavation. This involves knowing what equipment is needed and the number of people will have access. This also permits you to reflect on alternative methods of accomplishing the task without risking your life. Pre-excavation surveys must include the full risk assessment needed to ensure that all possible dangers are readily discovered. This can help to avoid unexpected complications down the line.

You should also take into consideration the depth of the trench. You’ll require the support of sloping or shoring if you’ve got a a 5-foot-wide strip. But, if the hole is 20 feet deep it will require extra engineering work. This is because of the lack of straight sides at both ends. Anyone who builds above the ground needs to consider the possibility of foundation displacement.

The trench should be accessible by ladders or steps, or even a ramp. There should be secure access within 25 feet of workers whenever an emergency occurs. You may also need to test for toxic or low oxygen levels gasses using specially-designed boxes referred to as “trench boxes.” The assembly of these devices is easy, but they may increase the risk of stacking them on top of one another since you don’t know how high your piles will extend to their vulnerable bottom.

Care of the trench

1. For any signs of damage or movement, make sure to check the trench box on a regular basis.

2. If working on site employees must wear their safety gear and be wearing a steel-toed shoe along with high-visibility clothing.

3. The heavy equipment and tools must be kept at least 3 feet away from the edges of any trench.


It’s harder to build a trench than to clean it up, since the earth that surrounds it moves. Chain slings can be used to remove it or three ways to help , one of them being using an overhead crane.

1. Straight Pull Straight Pull the most fundamental methods of taking materials. Attach your sling between the two points and then pull it out. There is no need for excess force or unneeded movements.

2. Half Pull: A half pull is used to attach the trench box to one side , and to lift as high as is possible. This will permit you to get rid of any dirt or debris without damaging your garden.

3. Single Pull: Attach a single chain sling to the lifting/extraction point to raise the trench box. Then, raise each panel individually with a single pull. When it’s time for removal though just use your trusty pull.

For more information, click trench shore