GIC East Africa

Understanding The Trench Box System

The digging of trenches is a crucial element of many construction and engineering sites. They are used to lay telephone lines, pipes, or any other tubular structure that must be placed deep beneath the ground, such as oil rigs, etc. Trenching can be difficult due to the amount of moisture present. It’s not simple to wash all dirt off objects, and it’s risky to expose skin to danger.

Trench boxes are required for any construction or repair work that needs access to the ground. They are able to prevent collapse depending on the material and soil quality. Trench boxes are constructed from aluminum/steel frame to temporarily secure them prior to excavation starts. The grout is secured between two layers in case it is necessary, to ensure that there is no chance of cracks forming when installed at site level.

Pre Installation

It is important to identify the potential hazards prior to beginning excavation. This includes knowing what equipment will be necessary and the number of people who will require access, in addition to an evaluation of the possibility of other means by which the job could have been accomplished without risking the life of limb (such low-invasive methods). Before excavation surveys should include an extensive risk assessment to ensure that any potential hazards can be easily discovered. This will help reduce risks that could arise later.

It’s also essential to consider the depth of your trench. You’ll require the support of sloping or shoring if you’ve got a five feet of width. However, if your trench is 20 feet deep, it will require extra engineering. This is due to the lack of straight sides at both ends. Anyone who builds above the ground needs to consider the possibility of foundation displacement.

A ladder, steps or ramps should be used to access the trench. It is essential to keep the trench at least 25 feet from workers during an emergency. The trench box can also be used for testing for low oxygen levels, toxic gases or other issues. These devices can be simple to install, but you must be cautious not to pile them on top of others.

Care: Looking after the trench

1. For any signs of damage or movement, be sure to check the trench box every day.

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

3. It is essential to keep heavy tools and equipment at least three feet from the edge of any trench.


The process of installing a trench box is more likely to be difficult than excavating it since the earth around it moves. For extraction, you can use chain slings. An overhead crane is also an option.

1. Straight Pull: This is the most basic of extraction methods. Simply attach the sling to two points and then lift it out, no fussing around with excessive force or inefficient movements.

2. Half Pull: A half-pull is used to attach the trench box on one side , and to lift as high as is possible. This should allow you to remove any dirt or debris from inside without doing any damage to your yard.

3. Single Pull: You attach one of the chains to the lifting or extraction location. Each panel will be raised by turns. Once it’s time to remove, but you’ll need to use your favorite pull.

For more information, click trench shore