Understanding The Trench Box System

The digging of trenches is a crucial part of many constructions and engineering sites. These trenches are used to install pipes, telephone lines, as well as any other tubular structure that requires installation deep underground, such as oil rigs. Because of the high water content of these soils, trench can be an arduous task. It is due to the fact that it’s hard to not only remove debris and dirt from surrounding objects, but also to guarantee that you are safe from serious injuries should you accidentally expose your skin.

Trench boxes are necessary for any type or repair which requires access to the ground. They also serve as a safeguard against the possibility of collapse, based on the soil’s quality and thicknesses put in place with Trench boxes being made out of either aluminum/steel framing to hold it in place temporarily prior to installation , while excavation is taking place over them. They are then completed using grout to attach between two layers so that no cracks can form after installation at the correct the level, which can lead to expansion in time due to.

Pre Installation

Before you begin digging before digging, you must be aware of the risks that could arise. This involves knowing what equipment is needed and the number of people will have access. This also permits you to contemplate alternative methods of accomplishing the task without risking your life. Also, a full risk assessment should be performed prior to the excavation survey in order to ensure that all hazards can be easily identified prior to the excavation. This will help avoid any complications in the future.

It’s also essential to take into consideration the depth of your trench. A 5-foot concrete strip will be able to hold you. If the trench is more than that, then shoring or sloping may be needed. However, if the deep trench of 20 feet has no straight sides, any structure above ground has to consider the greater danger of foundation movement.

The trench should be accessed by a ladder or steps, or even a ramp. Safe access must always be within 25 feet of workers in the event of an emergency. The trench box may also be used to test for low oxygen levels, toxic gases or other issues. These articulated devices are simple to put in place, however, you have to be careful not to pile them on top of each others.

Care: Caring for the trench

1. For any signs of movement or damage, make sure you look over the trench box every day.

2. Every person working on the site must wear protective equipment and wear steel-toed footwear.

3. Heavy equipment and tools should be kept at a minimum of 3 feet away from the edges of the trench.


A trench box installation is likely to be more difficult than excavating it since the ground around it shifts. Chain slings can be used to extract the soil, and there are three options for lifting it. The third option is to use an overhead crane.

1. Straight Pull: This one is the easiest. It’s as easy as attaching your sling to two points and then pull it up.

2. Half Pull Half Pull: Attach the half pull to one side of the trench box and then move it as far as you are able before moving forward. You can get rid of dirt and other debris from the trench box and not cause any harm.

3. Single Pull: To move the trench box you connect a single piece of chain sling to an extractor or lifting point, and raise each box each time. It is possible to remove it using your trusted pull.

For more information, click shoring trench box