Civil engineer guide to fighting positions, shelters, obstacles

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AFH 10-222 Volume 14 1 August 2008 114 5.4.2. Corrugated Galvanized Steel Revetments. The US Army ERDC developed metal revetments as an alternative to soil-filled geotextile revetments to address longevity issues related to severe environmental conditions (Figure 5.17). The design and technology are based on the B-1 revetment, weapons threats in SWA, and the reduced footprint needed for logistical requirements. Several kits were developed and are available through the Defense Supply Centers. Table 5.2 contains specifications and ordering information for these revetments. The overall pallet size for each kit is 37 inches wide, 100 inches long, and 19 inches high. For additional information, contact the servicing logistics function. Figure 5.17. Corrugated Galvanized Steel Revetments. Table 5.2. Specifications and Ordering Information. Type NSN Dimensions Weight MR-1 5450-01-535-7952 4’ x 8’ x 64’ 4,535 lbs MR-2 5450-01-535-7955 2’ x 6’ x 104’ 4,329 lbs MR-3 5450-01-537-7061 4’ x 10’ x 48’ 4,401 lbs
AFH 10-222 Volume 14 1 August 2008 115 5.5. Precast Concrete Revetments. The use of precast concrete revetments (also referred to as concrete retaining walls) is an effective expedient method for protecting critical assets (Figure 5.18). They can be used in areas that require protection from fragmentation, airblast from near-miss generalpurpose bombs, and high explosive artillery shells, rockets, mortars, and small arms. If used without berming, they provide good protection against a first strike, but limited protection from repeated or multiple attacks due to susceptibility to fragment damage and spalling. During repeated attacks, weakened or displaced slabs can break apart and become secondary fragmentation, posing yet another threat. The edges of most revetments do not have overlapping surfaces at the corners. The corners may require additional reinforcement (e.g., sandbags). If concrete revetments can be acquired locally, ensure the material used to construct these revetments meets military standards of construction. Also, be aware that equipment (i.e., flatbed trailer, forklift, crane, etc.) will be needed to move and place these revetments. Figure 5.18. Precast Concrete Revetment.
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Civil engineer guide to fighting positions, shelters, obstacles

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