Penghitungan Kelandaian Melintang Penetapan Trace Jalan

commit to user 54

3.1.6 Penghitungan Kelandaian Melintang

Untuk menentukan jenis medan dalam perencaan jalan raya, perlu diketahui jenis kelandaian melintang pada medan dengn ketentuan : 1. Kelandaian dihitung tiap 50 m 2. Potongan melintang 100 m dihitung dari as jalan ke samping kanan dan kiri Contoh perhitungan kelandaian melintang trace Jalan yang akan direncanakan pada awal proyek, STA 0+050 m a. Elevasi Titik Kanan b. Elevasi Titik Kiri Gambar 3.2 Cara Menghitung Trace Jalan m b a 89 , 466 5 , 12 3 , 2 3 , 5 , 462 5 , 12 1 1 5 , 462 kanan titik elevasi                    462,5 m 475 m a 1 b 1 12,5 m Beda tinggi antara 2 garis kontur m b a 77 , 464 5 , 12 9 , 1 3 , 5 , 462 5 , 12 2 2 5 , 462 kiri titik elevasi                    462,5 m 475 m a 2 b 2 12,5 m Beda tinggi antara 2 garis kontur commit to user 55 Gambar contoh perhitungan : A PANDAAN 4 6 2 .5 10 9 7 6 3 2 1 A 4 5 8 4 7 5 4 6 5 4 6 7 .5 4 7 4 7 2 .5 Hasil perhitungan dengan cara yang sama dapat dilihat pada tabel 3.1 Tabel 3.1 Perhitungan Kelandaian Melintang No STA ELV KANAN ELV KIRI Delta H L I Kelas Medan A 0+000 467,4760968 464,2056414 3,27045545 200 1,635227725 D 1 0+050 466,8955086 464,7792703 2,116238333 200 1,058119167 D 2 0+100 466,4324329 465,2171585 1,215274352 200 0,607637176 D 3 0+150 466,1983111 466,8335984 0,635287304 200 0,317643652 D 4 0+200 465,1587073 467,3671114 2,208404047 200 1,104202023 D 5 0+250 464,0130021 467,8942008 3,88119871 200 1,940599355 D 6 0+300 463,1120246 468,3115183 5,199493689 200 2,599746844 D 7 0+350 475,101835 468,6446781 6,45715693 200 3,228578465 B 8 0+400 475,7336466 470,1096603 5,623986299 200 2,811993149 D 9 0+450 476,3540991 468,3612412 7,992857866 200 3,996428933 D 10 0+500 477,0634558 466,864027 10,1994288 200 5,099714402 B 11 0+550 477,9447203 465,479454 12,46526627 200 6,232633133 B 12 0+600 478,9712357 464,2816163 14,68961942 200 7,344809709 B 13 0+650 480,4543235 463,0180361 17,43628744 200 8,718143718 B 14 0+700 480,1850917 476,0386685 4,146423245 200 2,073211622 D 15 0+750 479,8100875 476,9712472 2,838840243 200 1,419420121 D 16 0+800 478,6055081 478,1981337 0,407374444 200 0,203687222 D 17 0+850 477,6942015 478,9377391 1,243537543 200 0,621768772 D 18 0+900 477,2156487 479,8445396 2,628890928 200 1,314445464 D 19 0+950 476,6567573 480,2570093 3,600252002 200 1,800126001 D 20 1+000 476,0377598 480,3605043 4,322744586 200 2,161372293 D 21 1+050 475,1217287 481,1738987 6,052170014 200 3,026085007 D 22 1+100 489,9728055 480,982497 8,990308507 200 4,495154254 B 23 1+150 491,1695288 481,6226254 9,546903417 200 4,773451708 B 24 1+200 490,3018104 480,0316401 10,27017027 200 5,135085135 B 25 1+250 489,5022624 480,9974562 8,504806286 200 4,252403143 B a1 b1 a2 b2 commit to user 56 26 1+300 489,2550508 481,3838026 7,871248163 200 3,935624082 D 27 1+350 489,0588574 482,33582 6,723037448 200 3,361518724 D 28 1+400 489,0483486 481,5762404 7,472108227 200 3,736054114 D 29 1+450 488,9097097 480,7659585 8,143751196 200 4,071875598 B 30 1+500 495,0919561 480,065513 15,02644318 200 7,51322159 B 31 1+550 493,4832066 480,3373501 13,14585648 200 6,57292824 B 32 1+600 493,1441915 480,7734942 12,3706973 200 6,185348649 B 33 1+650 494,0473268 480,7161336 13,33119319 200 6,665596595 B 34 1+700 489,0810866 481,0924763 7,988610345 200 3,994305172 D 35 1+750 489,5834155 481,5426658 8,040749634 200 4,020374817 B 36 1+800 496,5811483 481,3653236 15,2158247 200 7,607912352 B 37 1+850 489,8973381 481,1245353 8,772802742 200 4,386401371 B 38 1+900 489,9342416 480,8888616 9,045379998 200 4,522689999 B 39 1+950 490,4015394 480,2466719 10,15486754 200 5,077433772 B 40 2+000 490,5758199 479,960284 10,61553592 200 5,307767959 B 41 2+050 489,1840622 481,1031172 8,080945 200 4,0404725 B 42 2+100 487,8648751 479,9872732 7,877601904 200 3,938800952 D 43 2+150 488,4966058 476,5340512 11,9625546 200 5,981277298 B 44 2+200 490,8465899 475,5036543 15,34293564 200 7,671467818 B 45 2+250 487,7013146 477,4852899 10,21602469 200 5,108012345 B 46 2+300 490,5524366 478,5404131 12,01202343 200 6,006011717 B 47 2+350 489,4607723 480,7958152 8,664957117 200 4,332478558 B 48 2+400 488,241386 476,6568944 11,58449166 200 5,792245832 B 49 2+450 491,4480999 475,2472598 16,20084005 200 8,100420027 B 50 2+500 490,0474549 476,2709604 13,77649449 200 6,888247244 B 51 2+550 489,7973281 477,8573707 11,93995747 200 5,969978737 B 52 2+600 487,5513888 479,175954 8,375434848 200 4,187717424 B 53 2+650 492,2740469 477,7825305 14,4915164 200 7,245758198 B 54 2+700 493,0615064 483,1991881 9,862318241 200 4,93115912 B 55 2+750 488,141685 479,4299549 8,711730116 200 4,355865058 B 56 2+800 489,5215477 477,6264611 11,89508658 200 5,947543292 B 57 2+850 490,8969794 476,223823 14,67315644 200 7,336578219 B 58 2+900 491,8526262 475,1849407 16,6676855 200 8,333842748 B 59 2+950 493,4849931 475,5046106 17,98038258 200 8,99019129 B 60 3+000 491,3696822 477,087006 14,28267621 200 7,141338104 B 61 3+050 493,7930993 477,8013866 15,99171273 200 7,995856363 B 62 3+100 491,5371181 476,7220402 14,81507787 200 7,407538933 B 63 3+150 488,0049464 475,0196105 12,98533592 200 6,492667959 B 64 3+200 494,7189302 478,0198529 16,69907731 200 8,349538656 B 65 3+250 491,2051199 476,9278943 14,2772257 200 7,138612849 B 66 3+300 490,2377228 476,8619883 13,37573443 200 6,687867215 B 67 3+350 487,9713895 477,7480167 10,2233728 200 5,1116864 B B 3+400 489,7959645 479,2220532 10,57391129 200 5,286955643 B commit to user 57 Tabel 3.2 Perhitungan Kelandaian Memanjang No STA ELV KANAN ELV TENGAH ELV KIRI Delta H L I Kelas Medan 0 0+000 467,4760968 465,8408691 464,2056414 0 50 D 1 0+050 466,8955086 465,8373895 464,7792703 0,00347961 50 0,006959 D 2 0+100 466,4324329 465,8247957 465,2171585 0,01259377 50 0,025188 D 3 0+150 466,1983111 466,5159548 466,8335984 0,69115907 50 1,382318 D 4 0+200 465,1587073 466,2629093 467,3671114 0,25304543 50 0,506091 D 5 0+250 464,0130021 465,9536014 467,8942008 0,30930791 50 0,618616 D 6 0+300 463,1120246 465,7117715 468,3115183 0,24182996 50 0,48366 D 7 0+350 475,101835 471,8732566 468,6446781 6,16148508 50 12,32297 B 8 0+400 475,7336466 472,9216535 470,1096603 1,04839692 50 2,096794 D 9 0+450 476,3540991 472,3576701 468,3612412 0,56398334 50 1,127967 D 10 0+500 477,0634558 471,9637414 466,864027 0,39392873 50 0,787857 D 11 0+550 477,9447203 471,7120871 465,479454 0,25165428 50 0,503309 D 12 0+600 478,9712357 471,626426 464,2816163 0,08566115 50 0,171322 D 13 0+650 480,4543235 471,7361798 463,0180361 0,10975382 50 0,219508 D 14 0+700 480,1850917 478,1118801 476,0386685 6,37570029 50 12,7514 B 15 0+750 479,8100875 478,3906673 476,9712472 0,27878726 50 0,557575 D 16 0+800 478,6055081 478,4018209 478,1981337 0,01115358 50 0,022307 D 17 0+850 477,6942015 478,3159703 478,9377391 0,08585062 50 0,171701 D 18 0+900 477,2156487 478,5300941 479,8445396 0,21412381 50 0,428248 D 19 0+950 476,6567573 478,4568833 480,2570093 0,07321078 50 0,146422 D 20 1+000 476,0377598 478,199132 480,3605043 0,2577513 50 0,515503 D 21 1+050 475,1217287 478,1478137 481,1738987 0,05131834 50 0,102637 D 22 1+100 489,9728055 485,4776512 480,982497 7,3298375 50 14,65968 B 23 1+150 491,1695288 486,3960771 481,6226254 0,91842585 50 1,836852 D 24 1+200 490,3018104 485,1667253 480,0316401 1,22935181 50 2,458704 D 25 1+250 489,5022624 485,2498593 480,9974562 0,08313404 50 0,166268 D 26 1+300 489,2550508 485,3194267 481,3838026 0,06956742 50 0,139135 D 27 1+350 489,0588574 485,6973387 482,33582 0,377912 50 0,755824 D 28 1+400 489,0483486 485,3122945 481,5762404 0,3850442 50 0,770088 D 29 1+450 488,9097097 484,8378341 480,7659585 0,47446046 50 0,948921 D 30 1+500 495,0919561 487,5787345 480,065513 2,74090048 50 5,481801 B 31 1+550 493,4832066 486,9102784 480,3373501 0,66845617 50 1,336912 D 32 1+600 493,1441915 486,9588429 480,7734942 0,04856449 50 0,097129 D 33 1+650 494,0473268 487,3817302 480,7161336 0,42288736 50 0,845775 D 34 1+700 489,0810866 485,0867815 481,0924763 2,29494877 50 4,589898 B 35 1+750 489,5834155 485,5630407 481,5426658 0,47625921 50 0,952518 D 36 1+800 496,5811483 488,9732359 481,3653236 3,41019527 50 6,820391 B 37 1+850 489,8973381 485,5109367 481,1245353 3,46229924 50 6,924598 B 38 1+900 489,9342416 485,4115516 480,8888616 0,09938512 50 0,19877 D 39 1+950 490,4015394 485,3241057 480,2466719 0,08744591 50 0,174892 D 40 2+000 490,5758199 485,2680519 479,960284 0,05605371 50 0,112107 D 41 2+050 489,1840622 485,1435897 481,1031172 0,12446221 50 0,248924 D 42 2+100 487,8648751 483,9260742 479,9872732 1,21751554 50 2,435031 D 43 2+150 488,4966058 482,5153285 476,5340512 1,41074573 50 2,821491 D 44 2+200 490,8465899 483,1751221 475,5036543 0,65979366 50 1,319587 D 45 2+250 487,7013146 482,5933023 477,4852899 0,58181985 50 1,16364 D 46 2+300 490,5524366 484,5464248 478,5404131 1,95312257 50 3,906245 B commit to user 58 47 2+350 489,4607723 485,1282938 480,7958152 0,58186892 50 1,163738 D 48 2+400 488,241386 482,4491402 476,6568944 2,67915356 50 5,358307 B 49 2+450 491,4480999 483,3476798 475,2472598 0,89853963 50 1,797079 D 50 2+500 490,0474549 483,1592077 476,2709604 0,18847217 50 0,376944 D 51 2+550 489,7973281 483,8273494 477,8573707 0,66814173 50 1,336283 D 52 2+600 487,5513888 483,3636714 479,175954 0,463678 50 0,927356 D 53 2+650 492,2740469 485,0282887 477,7825305 1,66461732 50 3,329235 B 54 2+700 493,0615064 488,1303473 483,1991881 3,10205854 50 6,204117 B 55 2+750 488,141685 483,7858199 479,4299549 4,3445273 50 8,689055 B 56 2+800 489,5215477 483,5740044 477,6264611 0,21181551 50 0,423631 D 57 2+850 490,8969794 483,5604012 476,223823 0,01360323 50 0,027206 D 58 2+900 491,8526262 483,5187834 475,1849407 0,04161777 50 0,083236 D 59 2+950 493,4849931 484,4948019 475,5046106 0,97601841 50 1,952037 D 60 3+000 491,3696822 484,2283441 477,087006 0,26645776 50 0,532916 D 61 3+050 493,7930993 485,797243 477,8013866 1,56889889 50 3,137798 B 62 3+100 491,5371181 484,1295791 476,7220402 1,66766385 50 3,335328 B 63 3+150 488,0049464 481,5122785 475,0196105 2,61730068 50 5,234601 B 64 3+200 494,7189302 486,3693915 478,0198529 4,85711306 50 9,714226 B 65 3+250 491,2051199 484,0665071 476,9278943 2,30288442 50 4,605769 B 66 3+300 490,2377228 483,5498555 476,8619883 0,51665156 50 1,033303 D 67 3+350 487,9713895 482,8597031 477,7480167 0,69015246 50 1,380305 D B 3+400 489,7959645 484,5090089 479,2220532 1,6493058 50 3,298612 B Dari perhitungan kelandaian memanjang, didapat: Medan datar : 57 titik Medan bukit : 18 titik Medan gunung : 0 titik Dari data diatas diketahui kelandaian rata – rata adalah : 80 , 4 69 7008 , 331 int     potongan Jumlah ang Mel Kelandaian Dari 69 titik didominasi oleh medan Datar, maka menurut tabel II.6 TPGJAK, Hal 11 dipilih klasifikasi fungsi jalan kolektor dengan kecepatan antara 60 – 80 kmjam. Diambil kecepatan 80 km jam commit to user 59

3.2 Perhitungan Alinemen Horizontal