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• J <br /> between tanks must be equal to twice the width of a single <br /> 7. ANCHORINGTANKS deadman.One deadman may be used between two tanks If K is <br /> doubled in width.Provide a separate anchor point for each <br /> CAUTION:Xerxes recommends that every site be thoroughly holddown strap. �^ <br /> evaluated for the potential to trap water or otherwise subject the <br /> tank to a rise in the local water table.Xerxes recommends that ANCHOR SLAB: <br /> all tanks be anchored in installations in which water may enter An anchor slab is a reinforced concrete base.The total length of the <br /> the hole.Failure to anchor may damage the tank or surrounding slab is 12"greater than the overall length of the tank.The minimum <br /> property. slab thickness is 8".The width of the slab depends on the tank <br /> DEADMAN ANCHOR: diameter.Refer to Table 71 for specific dimensions.Refer to Table <br /> A deadman is a reinforced concrete beam with a total length 12 7-2 and Figure 7-2 for anchor point dimensions.Provide a separate <br /> inches greater than the overall lengthof the tank.A deadman may anchor point for each holddown strap.When using a concrete base <br /> be fabricated in multiple sections as long as the total length is not slab,allow sufficient depth in the excavation for 12"of bedding <br /> decreased and each section contains at least two anchor points. material below the tank. <br /> The width and thickness depend on the tank diameter.Refer to TABLE 7-2 <br /> Table 71 for speck dimensions. <br /> TANK DIA. DIM"A" DIM"B" DIM'C" DIM"E" DIM"D" <br /> TABLE 7-1 MIN.MAX. <br /> TANK DIA. DEADMAN DIMENSIONS SLAB WIDTH 4' 24" 18" 12" 2r' 3D" 8'-41/433 <br /> (FT,) (W x O)(IN.) (FT) 6' M. 23„ 13" 42" 48" 12%1" <br /> 4 6„x 6" 5 <br /> 8' 43" 31" 15" 52" 58" 15'-1" <br /> 6 12"x 12" 8' <br /> 10' 57" 45" 15" 69" 75" 18'-83/4" <br /> 8 12"x 12" 10' <br /> 12' 58" —50—'---t-23---] 87" D3" 22'-63,4- <br /> 10 18"x 12" 12' <br /> 12 3633X8" 14 =11 I POS1Ti0N STRAP CLIP <br /> II I I III AT TANK TOP IIII <br /> •D" <br /> ( IIII � IIIII <br /> C I I = <br /> ' <br /> TYPICAL ANCHORING <br /> CONFIGURATIO <br /> IIIII= <br /> II II <br /> - IIII- 12 DEADNAN I I III <br /> _ •. 'SLAB, ' _ <br /> TANK SHADOW <br /> III-111-IIIII=IIIII=IIIII-11 III = II <br /> FIGURE 7-2 <br /> rim <br /> k .• eqr - — I = I I <br /> 2 X WIDTH I IIIII <br /> WIDTH (SEE TABLE 7-1) <br /> FIGURE 71 IIII <br /> ...... <br /> Lay the deadmen in the excavation parallel to the tank and outside <br /> of the tank"shadow"(see Figure 71).In multiple tank installations, <br /> each tank will require two deadmen.The minimum spacing <br />