Battle trenches and fighting positions for small groups of individual soldiers, crew served weapons, or vehicles, are ...

The first issue is the permeability of the soil under the trench. Even though the first few feet of soil strata are engineered to allow water to flow through quickly, the soil type around the trench ...

The contractor needs to pay special attention to the width and depth of trench to determine if shoring is required." "With shoring, a contractor can use any type of compaction available ...

Trench shoring equipment includes trench shields and other shoring devices that are used to prevent a dug trench from caving-in on workers or equipment. In addition to product type, specifications ...

Practice trenches from the First World War ... and are believed to be one of the best preserved examples in England of their type. The site was used to train troops before deployment abroad ...