Civil engineer guide to fighting positions, shelters, obstacles

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AFH 10-222 Volume 14 1 August 2008 50 2.5.7.2. Materials. Civil engineer planners must work closely with the servicing logistics function to ensure the required materials are ordered and will be available when needed. In addition, heavy equipment, such as bulldozers and front-end loaders, and hand tools (i.e., shovels, rakes, pliers, wire cutters, etc.) will be needed. As an example, the next few paragraphs describe how to construct an aboveground single-bay fighting position. NOTE: Always refer to the manufacturer’s instructions for proper construction procedures. 2.5.7.3. Single-Bay Fighting Position. To construct an aboveground singlebay fighting position using earth-filled containers, begin expanding the bays of the containers and laying out the framework (Figure 2.5) and connecting the joining pins. Make sure the flaps at the bottom of the units are folded out. Once these actions are completed, begin placing fill material in the center of the bays uniformly throughout the first layer. Generally, the bays are filled in lifts no greater than 9 inches and lightly compacted using manual hand tampers or by foot – do not use compacting equipment for this purpose. The bays should bulge along the sides while filling. This allows them to deform to their maximum state. Do not attempt to use restraints to prevent this deformation process. To accommodate deformation, pull the coil hinges located at the bottom of the bays out approximately 4 inches during initial filling. If the containers being used do not have coil hinges at the bottom of the bays, just pull the sides of each bay outwards. Since the example being used here involves constructing an aboveground single-bay fighting position, a second layer will be constructed on top of the first layer. When a second layer is to be constructed, halt filling approximately 4 inches from the top of each bay. Figure 2.25. First Layer – Single-Bay Fighting Position.
AFH 10-222 Volume 14 1 August 2008 51 2.5.7.4. Second Layer. After the first layer is complete, align the second layer as depicted in Figure 2.26. Seal both layers together using the geotextile flaps located at the bottom of the second layer and use the plastic ties to connect them. Uniformly fill the second layer as previously described. Figure 2.26. Second Layer – Single-Bay Fighting Position. 2.5.7.5. Composite Panels. Align the 2- by 14-foot composite panels on top of the second layer of earth-filled units along the vertical walls as shown in Figure 2.27. Figure 2.27. Composite Panels – Single-Bay Fighting Position.
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