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8.3.11.Apply the first clip at a distance from the dead end of 8.4. DEADMEN the wire rope that is equal to the largest width of the clip used. 8,4,1,A deadman is typically a reinforced concrete beam and See FIGURE 8-5. should be designed according to the applicable American Concrete Institute code. 10clip 3t°Clip z"Clio 8.4.2.The length of a deadman is typically equal to the length Lige End Thimble of the tank. 8.4.3. Deadmen may be installed in multiple sections as long as the total length of the assembled deadman is appropriate for the installed tank,and as long as each section contains at Loop least two balanced anchor points. Dead End 8.4.4.The width and thickness of a deadman depends on the FIGURE 8-5 tank diameter,water-table height,number of containment 8.3.12.For each clip,apply a U-bolt over the dead end of the sumps and burial depth. wire rope.See FIGURE 8-5. 8.4.5.See TABLE 8-4 for typical deadmen dimensions for NOTE:Live end rests in the saddle. Xerxes tanks(other than 10-foot-diameter tanks with a capac- 8.3.13.When only 2 clips are required,apply the second clip 8y greater than 25,000 gallons),given the following scenario: as close to the loop or thimble as possible.See FIGURE 8-5. an empty tank,a 3-foot burial depth,groundwater to grade, and one containment sump. 8.3.14.When more than 2 clips are required,apply the second clip as Gose to the loop or thimble as possible,turn nuts on the Typical second Gip finely,but do not tighten initially.See FIGURE 8-5. Tank Diameter Deadman Dimensions 8.3.15.When more than 2 clips are required,space additional (Width x Depth) clips equally between the first 2,take up rope slack and 4' 12"x 1T tighten nuts on each U-bolt evenly. 6' 12"x 12" 8.3.16.Tighten all hardware uniformly and follow the manufac- 8' 1T x 12" turer's torque specifications.Double-check the tightness once the anchoring system is complete. 10' 18"x 9" 8.3.17.If forming a loop in the wire rope,a splice is required 12' 36"x 8" for connecting the two ends together. TABLE 8-4 8.3.17.1.Standard rigging practice for splicing wire rope calls 8.4.5.1. If tanks are installed with any conditions different from for using twice the number of clips recommended for a single- those identified in POINT 8.4.5,and/or if tanks are 10-foot- end termination. diameter tanks with a capacity greater than 25,000 gallons, 8.3.17.2.Use a minimum of 4 clips for a 3/8-inch wire rope the installation may require either a deeper burial or deadmen and a minimum of 6 clips for a 1/2-inch wire rope. larger than those shown in TABLE 8-4. Contact technical sup- 8.3.17.3.Place the rope ends parallel to each other and install port at Xerxes Minneapolis, MN,for further information. the clips as shown in FIGURE 8-6. 8.4.6.Lay the deadmen in the excavation parallel to the tank and outside of the tank"shadow."See FIGURE 7-2. 318"Wire Rope 8.4.7. In installations where two or more tanks are installed 4 Live End4--Dead End using deadmen: .*—Load 8.4.7.1.a separate anchor point must be provided for each anchor strap Leed—► 8.4.7.2.the minimum spacing between the tanks must be End Ll"End III equal to or greater than the width of the deadman used for the tanks 112"Wire Rope 8.4.7.3.each tank will have its own set of deadmen, however, Live End 11, Deed End one deadman may be used between two tanks if the deadman ~LOQ is double the width of the single deadman specified for tanks - in SECTION 7. Load—► Dead Eno 111 Live End 0 8.5. XERXES PREFABRICATED DEADMEN 8.5.1.Xeres-supplied prefabricated deadmen are pre-engi- neered and sized to the tank ordered.As with any deadmen, FIGURE 8-6 water-table height,number of containment sumps and burial depth must be considered. 16