Tính toán sức chịu tải của cọc

Th.s Lê Anh Hoàng BẢNG TRA qm 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5 19.0 19.5 20.0 20.5 21.0 21.5 22.0 22.5 23.0 23.5 0.0 7500 7900 8300 8550 8800 9025 9250 9475 9700 9833 9967 10100 10233 10367 10500 10620 10740 10860 10980 11100 11220 11340 11460 11580 11700 11790 11880 11970 12060 12150 12240 12330 12420 12510 12600 12680 12760 12840 12920 13000 13080 13160 0.1 4600 4900 5200 5600 6000 6225 6450 6675 6900 6967 7033 7100 7167 7233 7300 7354 7408 7462 7516 7570 7624 7678 7732 7786 7840 7906 7972 8038 8104 8170 8236 8302 8368 8434 8500 8586 8672 8758 8844 8930 9016 9102 0.2 3000 3285 3570 3785 4000 4173 4345 4518 4690 4742 4793 4845 4897 4948 5000 5060 5120 5180 5240 5300 5360 5420 5480 5540 5600 5660 5720 5780 5840 5900 5960 6020 6080 6140 6200 6260 6320 6380 6440 6500 6560 6620 0.3 2000 2250 2500 2650 2800 2925 3050 3175 3300 3333 3367 3400 3433 3467 3500 3550 3600 3650 3700 3750 3800 3850 3900 3950 4000 4050 4100 4150 4200 4250 4300 4350 4400 4450 4500 4536 4572 4608 4644 4680 4716 4752 0.4 1200 1400 1600 1800 2000 2050 2100 2150 2200 2233 2267 2300 2333 2367 2400 2436 2472 2508 2544 2580 2616 2652 2688 2724 2760 2804 2848 2892 2936 2980 3024 3068 3112 3156 3200 3230 3260 3290 3320 3350 3380 3410 0.5 800 950 1100 1200 1300 1325 1350 1375 1400 1417 1433 1450 1467 1483 1500 1515 1530 1545 1560 1575 1590 1605 1620 1635 1650 1679 1708 1737 1766 1795 1824 1853 1882 1911 1940 1964 1988 2012 2036 2060 2084 2108 0.6 600 650 700 750 800 813 825 838 850 867 883 900 917 933 950 957 964 971 978 985 992 999 1006 1013 1020 1035 1050 1065 1080 1095 1110 1125 1140 1155 1170 1194 1218 1242 1266 1290 1314 1338 0.7 525 555 585 615 645 656 668 679 690 699 708 718 727 736 745 751 757 763 769 775 781 787 793 799 805 814 823 832 841 850 859 868 877 886 895 908 921 934 947 960 973 986 0.8 450 460 470 480 490 500 510 520 530 532 533 535 537 538 540 545 550 555 560 565 570 575 580 585 590 593 596 599 602 605 608 611 614 617 620 622 624 626 628 630 632 634 24.0 13240 9188 6680 4788 3440 2132 1362 999 636 24.5 13320 9274 6740 4824 3470 2156 1386 1012 638 25.0 25.5 13400 13480 9360 9448 6800 6880 4860 4924 3500 3530 2180 2194 1410 1417 1025 1030 640 642 26.0 13560 9536 6960 4988 3560 2208 1424 1034 644 26.5 27.0 27.5 28.0 28.5 29.0 29.5 30.0 30.5 31.0 31.5 31.0 32.5 33.0 33.5 34.0 34.5 35.0 35.5 36.0 36.5 37.0 37.5 38.0 38.5 39.0 39.5 40.0 40.5 41.0 41.5 42.0 42.5 43.0 43.5 44.0 44.5 45.0 13640 13720 13800 13880 13960 14040 14120 14200 14280 14360 14440 14520 14600 14680 14760 14840 14920 15000 15080 15160 15240 15320 15400 15480 15560 15640 15720 15800 15880 15960 16040 16120 16200 16280 16360 16440 16520 16600 9624 9712 9800 9888 9976 10064 10152 10240 10251 10262 10273 10284 10295 10306 10317 10328 10339 10350 10467 10584 10701 10818 10935 11052 11169 11286 11403 11520 11629 11738 11847 11956 12065 12174 12283 12392 12501 12610 7040 7120 7200 7280 7360 7440 7520 7600 7640 7680 7720 7760 7800 7840 7880 7920 7960 8000 8084 8168 8252 8336 8420 8504 8588 8672 8756 8840 8946 9052 9158 9264 9370 9476 9582 9688 9794 9900 5052 5116 5180 5244 5308 5372 5436 5500 5550 5600 5650 5700 5750 5800 5850 5900 5950 6000 6050 6100 6150 6200 6250 6300 6350 6400 6450 6500 6550 6600 6650 6700 6750 6800 6850 6900 6950 7000 3590 3620 3650 3680 3710 3740 3770 3800 3830 3860 3890 3920 3950 3980 4010 4040 4070 4100 4130 4160 4190 4220 4250 4280 4310 4340 4370 4400 4430 4460 4490 4520 4550 4580 4610 4640 4670 4700 2222 2236 2250 2264 2278 2292 2306 2320 2345 2370 2395 2420 2445 2470 2495 2520 2545 2570 2553 2536 2519 2502 2485 2468 2451 2434 2417 2400 2415 2430 2445 2460 2475 2490 2505 2520 2535 2550 1431 1438 1445 1452 1459 1466 1473 1480 1488 1488 1488 1488 1488 1488 1488 1488 1488 1560 1554 1548 1542 1536 1530 1524 1518 1512 1506 1500 1510 1520 1530 1540 1550 1560 1570 1580 1590 1600 1039 1043 1048 1052 1057 1061 1066 1070 1075 1075 1075 1075 1075 1075 1075 1075 1075 1120 1118 1116 1114 1112 1110 1108 1106 1104 1102 1100 1108 1115 1123 1130 1138 1145 1153 1160 1168 1175 646 648 650 652 654 656 658 660 662 662 662 662 662 662 662 662 662 680 682 684 686 688 690 692 694 696 698 700 705 710 715 720 725 730 735 740 745 750 0.7 0.8 3 Baûng Tra fsi 1.0 1.5 2.0 2.5 3.0 60 64 68 73 77 0.1 48 51 55 60 64 0.2 35 39 42 45 48 0.3 23 27 30 33 35 0.4 15 18 21 23 25 0.5 11 13 15 17 0.6 10 11 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0 16.5 17.0 17.5 18.0 18.5 19.0 19.5 20.0 20.5 21.0 21.5 22.0 22.5 23.0 23.5 24.0 24.5 25.0 25.5 26.0 26.5 27.0 27.5 28.0 28.5 85 92 96 99 107 115 119 123 126 130 133 135 138 140 141 142 143 144 145 146 147 148 149 150 151 152 152 153 154 155 156 156 157 158 159 160 160 161 162 163 164 164 165 166 167 167 168 168 169 170 170 69 73 76 78 80 82 83 84 85 86 87 88 88 89 90 90 91 92 93 93 94 95 95 96 97 98 99 100 101 102 103 104 106 107 108 109 110 111 112 113 115 116 117 118 119 120 120 121 122 123 124 51 53 55 56 57 58 59 60 61 62 62 62 62 62 63 64 65 66 67 68 69 70 71 72 72 73 73 74 74 74 75 75 76 76 77 78 79 80 81 82 83 84 85 86 87 87 88 89 90 90 91 37 38 39 40 41 42 43 43 44 44 45 45 46 46 47 47 48 48 49 49 50 50 51 51 52 52 53 53 54 54 55 55 56 56 57 57 58 58 59 59 60 60 61 61 62 62 63 63 64 64 65 26 27 28 29 30 31 32 32 33 33 33 34 34 34 34 35 35 36 36 36 37 37 38 38 38 39 39 39 40 40 40 40 41 41 41 42 42 42 43 43 43 43 44 44 44 45 45 45 46 46 46 18 20 21 22 22 23 23 23 23 23 24 24 24 25 25 25 25 25 26 26 26 26 26 26 27 27 27 27 27 27 27 27 28 28 28 28 28 29 29 29 29 30 30 30 30 30 31 31 31 31 31 12 14 14 15 15 16 16 17 17 18 18 18 18 18 18 18 18 18 19 19 19 19 19 19 19 19 19 19 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 21 21 21 21 22 22 9 10 10 10 11 11 11 11 11 11 11 11 11 11 11 11 11 11 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 12 7 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 29.0 29.5 30.0 30.5 31.0 31.5 32.0 32.5 33.0 33.5 34.0 34.5 35.0 35.5 36.0 36.5 37.0 37.5 38.0 38.5 39.0 39.5 40.0 171 171 172 173 173 174 174 175 176 176 177 177 178 178 179 179 180 180 180 181 181 182 182 124 125 126 127 127 128 128 129 130 130 131 131 132 133 133 134 135 136 136 137 138 138 139 92 92 93 94 94 95 96 97 97 98 99 99 100 101 101 102 102 103 103 104 104 105 105 65 66 66 66 67 67 68 68 68 69 69 70 70 70 71 71 71 72 72 72 72 73 73 46 47 47 47 48 48 48 49 49 49 49 50 50 50 50 51 51 51 51 51 52 52 52 31 31 32 32 32 32 32 33 33 33 33 33 34 34 34 34 34 35 35 35 35 35 36 22 22 23 23 22 22 22 22 22 22 22 22 22 22 22 22 22 23 23 23 23 23 23 12 12 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 9 9 9 9 9 9 9 9 9 9 9 Anh Hoaøng 0.9 425 443 460 471 483 490 498 505 513 515 518 521 524 527 530 534 537 541 544 548 551 555 558 562 565 567 569 571 573 575 577 579 581 583 585 586 587 588 589 590 591 592 1.0 400 425 450 463 475 480 485 490 495 499 503 508 512 516 520 522 524 526 528 530 532 534 536 538 540 541 542 543 544 545 546 547 548 549 550 550 550 550 550 550 550 550 A 6600 6700 6800 6900 7000 7075 7150 7225 7300 7367 7433 7500 7567 7633 7700 7750 7800 7850 7900 7950 8000 8050 8100 8150 8200 8230 8260 8290 8320 8350 8380 8410 8440 8470 8500 8550 8600 8650 8700 8750 8800 8850 B 3100 3150 3200 3300 3400 3475 3550 3625 3700 3750 3800 3850 3900 3950 4000 4040 4080 4120 4160 4200 4240 4280 4320 4360 4400 4440 4480 4520 4560 4600 4640 4680 4720 4760 4800 4840 4880 4920 4960 5000 5040 5080 C 2000 2050 2100 2150 2200 2250 2300 2350 2400 2433 2467 2500 2533 2567 2600 2630 2660 2690 2720 2750 2780 2810 2840 2870 2900 2930 2960 2990 3020 3050 3080 3110 3140 3170 3200 3230 3260 3290 3320 3350 3380 3410 D 1100 1175 1250 1275 1300 1325 1350 1375 1400 1417 1433 1450 1467 1483 1500 1515 1530 1545 1560 1575 1590 1605 1620 1635 1650 1665 1680 1695 1710 1725 1740 1755 1770 1785 1800 1815 1830 1845 1860 1875 1890 1905 593 550 8900 5120 3440 1920 594 550 8950 5160 3470 1935 MEYERHOF j 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Nq 1.0 1.0 1.2 1.4 1.5 1.8 2.0 2.3 2.6 2.9 3.4 3.8 4.4 5.0 5.6 6.4 7.3 8.3 9.5 10.8 12.3 14.0 15.9 18.1 20.6 23.5 26.7 30.4 34.7 39.5 44.9 51.2 58.2 66.3 75.5 85.9 97.8 111.4 126.8 144.4 164.4 MaùcBT Rn 15 6500 Nc 9.1 10.1 11.3 12.5 13.9 15.4 17.1 18.9 21.0 23.3 25.9 28.7 31.9 35.4 39.2 43.5 48.3 53.6 59.5 66.0 73.2 81.2 90.1 100.0 111.0 123.2 136.7 151.6 168.2 186.7 207.1 229.8 255.0 283.0 314.0 348.4 386.6 429.0 476.0 528.2 586.1 10 20 9000 15 595 596 550 550 9000 9050 5200 5230 3500 3530 1950 1965 Rk 600 750 597 550 9100 5260 3560 1980 598 599 600 601 602 603 604 605 606 606 606 606 606 606 606 606 606 615 616 617 618 619 620 621 622 623 624 625 628 630 633 635 638 640 643 645 648 650 550 550 550 550 550 550 550 550 550 550 550 550 550 550 550 550 550 550 550 550 550 550 550 550 550 550 550 550 550 550 550 550 550 550 550 550 550 550 9150 9200 9250 9300 9350 9400 9450 9500 9550 9600 9650 9700 9750 9800 9850 9900 9950 10000 10500 11000 11500 12000 12500 13000 13500 14000 14500 15000 15500 16000 16500 17000 17500 18000 18500 19000 19500 20000 5290 5320 5350 5380 5410 5440 5470 5500 5550 5600 5650 5700 5750 5800 5850 5900 5950 6000 6050 6100 6150 6200 6250 6300 6350 6400 6450 6500 6550 6600 6650 6700 6750 6800 6850 6900 6950 7000 3590 3620 3650 3680 3710 3740 3770 3800 3830 3860 3890 3920 3950 3980 4010 4040 4070 4100 4130 4160 4190 4220 4250 4280 4310 4340 4370 4400 4430 4460 4490 4520 4550 4580 4610 4640 4670 4700 1995 2010 2025 2040 2055 2070 2085 2100 2115 2130 2145 2160 2175 2190 2205 2220 2235 2250 2265 2280 2295 2310 2325 2340 2355 2370 2385 2400 2415 2430 2445 2460 2475 2490 2505 2520 2535 2550 17 19 26 0.9 1.0 5 A 48 51 55 60 64 B 35 39 42 45 48 C 23 27 30 33 35 D 15 18 21 23 25 6 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 7 69 73 76 78 80 82 83 84 85 86 87 88 88 89 90 90 91 92 93 93 94 95 95 96 97 98 99 100 101 102 103 104 106 107 108 109 110 111 112 113 115 116 117 118 119 120 120 121 122 123 124 51 53 55 56 57 58 59 60 61 62 62 62 62 62 63 64 65 66 67 68 69 70 71 72 72 73 73 74 74 74 75 75 76 76 77 78 79 80 81 82 83 84 85 86 87 87 88 89 90 90 91 37 38 39 40 41 42 43 43 44 44 45 45 46 46 47 47 48 48 49 49 50 50 51 51 52 52 53 53 54 54 55 55 56 56 57 57 58 58 59 59 60 60 61 61 62 62 63 63 64 64 65 26 27 28 29 30 31 32 32 33 33 33 34 34 34 34 35 35 36 36 36 37 37 38 38 38 39 39 39 40 40 40 40 41 41 41 42 42 42 43 43 43 43 44 44 44 45 45 45 46 46 46 7 7 7 7 8 8 8 8 8 8 8 7 7 7 7 7 7 7 7 7 7 7 124 125 126 127 127 128 128 129 130 130 131 131 132 133 133 134 135 136 136 137 138 138 139 92 92 93 94 94 95 96 97 97 98 99 99 100 101 101 102 102 103 103 104 104 105 105 65 66 66 66 67 67 68 68 68 69 69 70 70 70 71 71 71 72 72 72 72 73 73 46 47 47 47 48 48 48 49 49 49 49 50 50 50 50 51 51 51 51 51 52 52 52 Ng 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.3 1.6 1.9 2.2 2.5 3.3 4.1 4.9 5.7 6.5 8.2 9.9 11.6 13.3 15.0 19.0 23.0 27.0 31.0 35.0 44.0 53.0 62.0 71.0 10 80.015 25 11000 Nq 1.0 1.1 1.2 1.3 1.4 1.5 1.7 1.9 2.1 2.3 2.5 2.8 3.1 3.4 3.7 4.0 4.5 5.0 5.5 6.0 6.5 7.3 8.1 8.9 9.7 10.5 12.1 13.7 15.3 16.9 18.5 21.6 24.7 27.8 30.9 34.0 40.0 46.0 52.0 58.0 64.0 20 Nc 5.7 5.9 6.0 6.2 6.3 6.5 6.8 7.1 7.4 7.7 8.0 8.6 9.2 9.8 10.4 11.0 11.8 12.6 13.4 14.2 15.0 16.1 17.2 18.3 19.4 20.5 22.4 24.3 26.2 28.1 30.0 33.2 36.4 39.6 42.8 46.0 51.8 57.6 63.4 69.2 75.0 25 30 13000 35 15500 350.0 340.0 330.0 320.0 310.0 300.0 290.0 280.0 270.0 260.0 250.0 240.0 230.0 220.0 210.0 200.0 190.0 180.0 170.0 160.0 150.0 140.0 130.0 120.0 110.0 100.0 90.0 80.0 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 30 40 17000 35 880 1000 1100 1200 31 39 44 60 Tổng số lớp đất Thứ tự lớp ĐẤT Chiều sâu(m) 16.5 18.5 Dung trọng Đẩy (j') 4.5 9.5 Độ sệt B = 1.3 0.3 CátThô=a;Trung=b;Mòn=c;Bụi=d Masát jo = 17 Lực dính c(kPa) = 43.3 Zđài = Ma sát j0 Zmũi = 30.5 c (kPa)= SAIGON VIEW 25.5 30.5 38.5 8.4 11.6 11.3 0.7 0.7 b 10 28 14 13 28 Theùp 4j Theùp 4j kPa 210.1 Ứs thân mũi Ứ/Suấ t Ch/sâ Ch/Dầ BaûnTha u ân y kPa 14 j Zi(m) 0.0 11.5 2.0 7.0 5.0 ktc= j i(kPa) 0.0 51.8 70.8 129.6 187.6 20 PVẬT LIỆU Ứ/Suất BT tai giửa lớp 25.5 1.4 0.1225 = 0,8*(Ra*Fa+Rb*Fb) = Ch/Dầ Ch/sâu y trung bình ZDi(m) j ZDi Zi(m) jbtgiửa lớp 11.5 13.5 20.5 25.5 0 0 0 11.5 2.0 7.0 5.0 0.0 0.0 0.0 0.0 0.0 0.0 1.5 TraBaûng qm = 5.0 10.5 17.5 22.0 28.0 0.0 0.0 0.0 0.0 0.0 0.0 22.5 47.3 82.6 121.5 179.9 0.0 0.0 0.0 0.0 0.0 0.0 5550 kPa TRA BAÛNG fsi(kPa) j(fsi) 0.0 86.9 54 134.8 12 105.8 12 77.5 0.0 0.0 0.0 0.0 0.0 0.0 405 Sức chòu tải theo PP Tra Qa = 723 kN Sức chòu tải theo Meyer Qa = 718 kN Meyerhof ### 13000 1000 1545 kN 10 NO MEYERHOF fsi(kPa) j(fsi) 0.0 0.0 7.0 113.4 57.9 162.1 23.4 229.7 42.2 295.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 800 Nq 34.6644706157 = 168.2457918088 Nc = Chieàu daàyZi(m) Lop 16.5 Lop 18.5 lop 25.5 Lop 30.5 Tiet Dien CỌC = Ứs thân đáy22.5 Ch/Sâu từ Đáy Đài (Delete trò số không dùng)1 43.5 60 10.7 11.1 0.3 b 13 32 47.5 10 Ra(kPa) 270,000 35 Mác Bêtông Mpa 30 LCỌC UCỌC fCỌC Fa(m2) Rb(kPa) Rk(kPa) qm = 7786 kPa Qult = 1754 kN 5.0 16.5 18.5 25.5 30.5 22.5 74.3 93.3 152.1 210.1 22.5 210.1 ... 14 j Zi(m) 0.0 11.5 2.0 7.0 5.0 ktc= j i(kPa) 0.0 51.8 70.8 129.6 187.6 20 PVẬT LIỆU Ứ/Suất BT tai giửa lớp 25.5 1.4 0.1225 = 0,8*(Ra*Fa+Rb*Fb) = Ch/Dầ Ch/sâu y trung bình ZDi(m) j ZDi Zi(m)