How Are Trench Boxes Used?

Digging trenches is an essential component of several constructions. They are utilized to install telephone lines and pipes. Due to the substantial moisture content of the soil, trenching can be an arduous job. This is because it’s challenging to not just remove debris and dirt from surrounding objects, but also to ensure that you are safe from severe injuries if you expose your skin.

Trenches are needed for any type of repairs or construction work which needs access to the ground. They are able to avoid collapse based on the materials and soil quality. Trench boxes are made from aluminum/steel frame to temporarily secure them prior to excavation commences. The grout is then placed between two layers in case it is necessary, to ensure that there is no chance of cracks forming when set up at the ground level.

Pre Installation

It is important to identify any risks that could be present prior to starting excavation. This includes knowledge of what equipment is required and the number of people who will require access, in addition to contemplating whether there might be alternative methods by which the task could be done without risking life and the limb (such minimally invasive techniques). Also, a full risk assessment should be done prior to the excavation survey in order to make sure that any hazards are easily identified prior the excavation. This will help avoid any complications in the future.

The depth of the trench is a factor to take into account as well. A 5-foot strip of concrete can be used to support your needs. If your trench is deeper than this, then shoring or sloping may be needed. If, however, the deep trench of 20 feet is not straight, every building above ground needs to account for the increased danger of foundation movement.

The access to the trench should be made by steps or ladders. Safe access must always be within 25 feet of workers in an emergency. The trench box may be used to test for low oxygen levels, toxic gases or other issues. These articulated devices make installation simple, but they also increase the risk of stacking them on top of each other because you are not able to predict how high up your piling can break into their vulnerable underbelly.

Care: Caring for the trench

1. It is recommended to inspect your trench box and its support each day for any damage or movements.

2. Anyone working on the premises are required to wear their safety gear and be wearing steel-toed boots.

3. Heavy equipment and tools should be placed at least three feet from the edge of any trench.


It’s harder to construct a trench then to clean it up, since the earth around it moves. Chain slings can be used to pull soil out, however, there are three methods to lift it. The final option is using an overhead crane.

1. Straight Pull Straight Pull the most fundamental methods of getting materials out. It’s as easy as attaching your sling at two points and then pull it out.

2. Half Pull: If using half-pulls, connect it to one side of the trench box, and the trench box as high as is possible before switching over. You can get rid of dirt and debris from the trench box and not cause any harm.

3. Single Pull Single Pull: Connect a single chain sling leg with the lifting point to lift the trench box. Then, raise each panel individually by pulling a single lever. Once it’s time to remove, it is best to pull the traditional pull.

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