Z type sheet piling has a large section modulus (W=1200~5015cm3/m) and is suitable for large, medium and small projects that bear relatively large earth (water) pressure. Based on the characteristics of steel sheet piling, two pieces are usually combined into one group for driving. Although its construction procedure is slightly longer and technical difficulty is higher, its overall construction efficiency is higher since the group composed of two pieces of piles may have a width of 1160~1400mm, nearly 2~3 times the width of single piece of U profile steel sheet pile; hence sheet piling catalog have been widely used for a lot of dock projects of China that has a requirement for land-based area. Normally, the construction method is "pile pitching through vibration, and then pile sinking through hammering"
The most essential mechanical property of steel sheet piling is the continuity of web and the symmetrical distribution of interlocks at specified positions at both sides of neutral axis, both have positive effect on section modulus of cold rolled steel sheet pile.
Z profile sheet piling has the following merits:
1) Flexible design and resultant relatively high section modulus and mass ratio;
2) Increase in moment inertia of section, improvement of bending rigidity of overall piling wall, and effective reduction of displacement deformation;
3) The use of high tensile steel remarkably improves the bending strength of sheet pile wall;
4)The increase in section width brings about the reduction of interlocks of sheet pile wall, which directly improves the water sealing performance of sheet pile wall.
Section | Dimensions | Mass | Per metre of wall | Coating area | ||||||
Thick- ness |
System width single |
Height | Single pile |
Wall | Section modulus |
Moment of inertia |
Sectional area |
Single pile |
Double pile |
|
e | b | h | ||||||||
mm | mm | mm | kg/m | kg/m2 | cm3 | cm4 | cm2 | m2/m | m2/m | |
PAZ 43 50 | 5.0 | 770 | 213 | 38.2 | 49.6 | 448 | 4 770 | 63.2 | 0.91 | 1.77 |
PAZ 43 60 | 6.0 | 770 | 214 | 45.8 | 59.4 | 534 | 5 720 | 75.7 | 0.91 | 1.77 |
PAZ 43 70 | 7.0 | 770 | 215 | 53.3 | 69.2 | 619 | 6 660 | 88.2 | 0.91 | 1.77 |
PAZ 44 50 | 5.0 | 725 | 269 | 37.7 | 52.0 | 612 | 8 240 | 66.2 | 0.91 | 1.77 |
PAZ 44 60 | 6.0 | 725 | 270 | 45.1 | 62.2 | 730 | 9 890 | 79.3 | 0.91 | 1.77 |
PAZ 44 70 | 7.0 | 725 | 271 | 52.4 | 72.3 | 846 | 11 535 | 92.1 | 0.91 | 1.77 |
PAZ 45 50 | 5.0 | 676 | 312 | 37.7 | 55.8 | 772 | 12 065 | 71.0 | 0.91 | 1.77 |
PAZ 45 60 | 6.0 | 676 | 313 | 45.1 | 66.7 | 922 | 14 444 | 85.0 | 0.91 | 1.77 |
PAZ 45 70 | 7.0 | 676 | 314 | 52.4 | 77.5 | 1 069 | 16 815 | 98.8 | 0.91 | 1.77 |
PAZ 46 50 | 5.0 | 621 | 347 | 37.7 | 60.7 | 940 | 16 318 | 77.3 | 0.91 | 1.77 |
PAZ 46 60 | 6.0 | 621 | 348 | 45.1 | 72.6 | 1 122 | 19 544 | 92.5 | 0.91 | 1.77 |
PAZ 46 70 | 7.0 | 621 | 349 | 52.4 | 84.4 | 1 302 | 22 756 | 107.5 | 0.91 | 1.77 |
PAZ 53 60 | 6.0 | 857 | 300 | 54.3 | 63.3 | 766 | 11 502 | 80.7 | 1.04 | 2.05 |
PAZ 53 70 | 7.0 | 857 | 301 | 63.2 | 73.7 | 888 | 13 376 | 93.9 | 1.04 | 2.05 |
PAZ 53 80 | 8.0 | 857 | 302 | 72.1 | 84.0 | 1009 | 15 249 | 107.1 | 1.04 | 2.05 |
PAZ 53 90 | 9.0 | 857 | 303 | 81.0 | 94.4 | 1131 | 17 123 | 120.3 | 1.04 | 2.05 |
PAZ 54 60 | 6.0 | 807 | 351 | 53.9 | 66.8 | 968 | 16 989 | 85.1 | 1.04 | 2.05 |
PAZ 54 70 | 7.0 | 807 | 352 | 62.6 | 77.6 | 1123 | 19 774 | 98.9 | 1.04 | 2.05 |
PAZ 54 80 | 8.0 | 807 | 353 | 71.4 | 88.4 | 1277 | 22 546 | 112.7 | 1.04 | 2.05 |
PAZ 54 90 | 9.0 | 807 | 354 | 80.2 | 99.3 | 1431 | 25 318 | 126.5 | 1.04 | 2.05 |
PAZ 54 100 | 10.0 | 808 | 355 | 89.2 | 110.3 | 1570 | 27 850 | 140.5 | 1.04 | 2.05 |
PAZ 55 60 | 6.0 | 743 | 407 | 53.9 | 72.5 | 1233 | 25 074 | 92.4 | 1.04 | 2.05 |
PAZ 55 70 | 7.0 | 743 | 408 | 62.6 | 84.3 | 1432 | 29 179 | 107.4 | 1.04 | 2.05 |
PAZ 55 80 | 8.0 | 744 | 409 | 71.4 | 96.0 | 1628 | 33 263 | 122.3 | 1.04 | 2.05 |
PAZ 55 90 | 9.0 | 744 | 410 | 80.2 | 107.8 | 1825 | 37 387 | 137.3 | 1.04 | 2.05 |
PAZ 55 100 | 10.0 | 745 | 411 | 89.2 | 119.8 | 2000 | 41 060 | 152.6 | 1.04 | 2.05 |
PAZ 56 60 | 6.0 | 671 | 451 | 53.9 | 80.3 | 1525 | 34 340 | 102.3 | 1.04 | 2.05 |
PAZ 56 70 | 7.0 | 671 | 452 | 62.6 | 93.3 | 1770 | 39 954 | 118.9 | 1.04 | 2.05 |
PAZ 56 80 | 8.0 | 672 | 453 | 71.4 | 106.3 | 2013 | 45 537 | 135.4 | 1.04 | 2.05 |
PAZ 56 90 | 9.0 | 672 | 454 | 80.2 | 119.3 | 2259 | 51 180 | 151.9 | 1.04 | 2.05 |
PAZ 56 100 | 10.0 | 673 | 455 | 89.2 | 132.5 | 2470 | 56 200 | 168.8 | 1.04 | 2.05 |