How Are Trench Boxes Used?

The digging of trenches are an essential part of many constructions and engineering sites. The trenches are used to install telephone lines, pipes and other tubular structures that must be installed deep underground, such as oil drilling rigs. Because of the high humidity content of these soils, trench can be a laborious task. This is because it’s hard to remove dirt and other debris from nearby objects but also to ensure the safety of your family members as you can cause serious injuries if you accidently expose your skin.

Trenches are necessary for any kind of repairs or construction work that requires access to the ground. They are able to keep the ground from falling down based on the material and soil quality. Trench boxes are made out of steel/aluminum frames that temporarily hold them in place before excavation commences. The grout is then placed between two layers in case it is necessary, to ensure that no cracks develop when properly installed at the level of the site.

Pre Installation

Before you dig, it is crucial to understand the potential hazards. This includes knowledge of what equipment is required and the number of people who will require access to it, and thinking about the possibility of other means by which the work could have been completed without risking life or limb (such minimally invasive techniques). A thorough risk assessment should also take place during pre-excavation inspections to ensure that any potential hazards can easily enough be detected beforehand; this helps to avoid any unexpected complications later on.

The depth of the trench is an important factor to consider as well. If you’re working with five feet of width, then support either from the sloping or shoring is necessary depending on how big the trench gets. However, if the trench is 20 feet deep, it will require more engineering work due to the fact that there is no straight line on either side, it means that any structure that is above the ground needs to be able to account for an increased chance of foundation displacement due to directly down into their excavation site.

Access to the trench has to be made by ladders or steps. There should be the safety of access within 25 feet of the workers throughout the day in case an emergency arises and it could also be necessary to check for toxic or low oxygen levels gases through specially-designed boxes referred to as “trench boxes.” The assembly of these articulated devices is straightforward, but they increase the chance of stacking them on top of one another as you do not know the height at which your piles will reach into their vulnerable bottom.

Care of the trench

1. You should check your trench box and its support every day to ensure that there is no damage or movement.

2. Every person working on the site should wear their protective gear and have a steel-toed boots.

3. It is important to keep heavy equipment and tools at least three feet away from any edge of a trench.


Since the ground around a trench box moves and it’s more difficult to set up than to take it out. For removal, you can use chain slings. A crane that is overhead can also be used.

1. Straight Pull: This is one of the most fundamental methods of extracting materials. Connect your sling to the two points, then pull it out. No need for excessive force or unneeded movements.

2. Half Pull Half Pull one end of the trench box and then move it as far as you are able before moving onto the next. You can get rid of dirt and debris from the trench box and not cause any harm.

3. Single Pull: You link one leg of chain to your extraction/lifting point. Each panel will be raised by turns. Pull the lever to take away the trench box.

For more information, click shoring trench box

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