8 1 2015 BRG PREMANT district heating pipe PRE Subject to technical changes 6 515 a B A A1 H L Steel pipe DN 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 450 500 d mm 26 9 33 7 42 4 48 3 60 3 76 1 88 9 114 3 139 7 168 3 219 1 273 0 323 9 355 6 406 4 457 2 508 0 Fixed point force Fs max kN 66 5 83 7 107 2 123 1 172 4 219 9 284 1 412 9 507 6 680 9 1000 6 1388 5 1847 0 2052 0 2592 0 2920 0 3240 0 Concrete block dimensions B m 0 8 0 8 1 0 1 0 1 2 1 4 1 6 2 0 2 2 2 5 3 0 3 5 4 2 4 5 5 2 5 6 5 6 A1 m 0 40 0 40 0 40 0 45 0 55 0 65 0 80 0 95 1 15 1 40 1 70 2 10 2 25 2 40 2 40 2 60 2 60 A m 0 8 0 8 0 8 0 9 1 1 1 2 1 3 1 6 1 7 2 0 2 4 2 9 3 2 3 3 3 5 3 6 3 8 L m 0 8 0 8 0 8 0 8 1 0 1 0 1 0 1 0 1 0 1 3 1 3 1 3 1 5 1 5 1 8 2 0 2 0 Pipe distance a mm 270 270 280 280 295 320 340 390 415 450 550 680 745 810 890 890 980 Concrete block for fixed point For maximum fixed point forces For divergent fixed point forces and soil conditions the foundation dimensions must be calculated Calculation basis for the size of the concrete block Max thrust for 2 pipes Fs max 2 As dT dT 165 N mm T 70 K Coverage height H 0 8 m Foundation dimensions are based on a frictional angle of 32 5 for friable soils coefficient of friction 0 40 Apparent density 18 kN m Ground specification acc DVGW GW 310 Concrete quality P 350 to DIN 1045 impermeable to water with armouring L max width

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