第一篇作业答案-2014

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1、第一篇作业201442014.4作业：1.绘制比例尺图75.021.011.37202.05.011.375.03.图（a）1Ⅱ312.5665.5456786.5¾相邻道岔岔心间距L3L3--99=a3+f+a9+=a3+f+a9+∆=16.853+6.25+13.839+0.008=36.95L7-13=a7+f+a13+=a7+f+a13+∆=13839+13839=27678=13.839+13.839=27.678L17L17--2121=b17+f+a21+=b17+f+a21+∆=19.962

2、+4.5+13.839+0.008=38.309L19-27=a17a17fa27+f+a27+∆=16.85316.85313.83930.692+13.839=30.692。L29L29--19=S/sin19=S/sinα=5/=5/sin4sin445’49”=60.208L11L11--29=a11+f+a29+29=a11+f+a29+∆=13.839+6.25+13.839+0.008=33.936L23-25=a23+f+25+23+f+a25+∆=13839+625+16853+00083

3、69513.839+6.25+16.853+0.008=36.95L37L37--39=a37+f+a3939=a37+f+a39++∆=13.839+13.839=27.678L29L29--31=b29+f+a31+31=b29+f+a31+∆==15.009+4.5+13.839+0.008=33.35615.009+4.5+13.839+0.008=33.356。L31-37=S/sinα=6.5/sin6202025’25”=58.859。L31L31--33=S/sin33=S/sinα=6.5

4、/=6.5/sinsin6620’25”=58.859L15L15--17=L1117=L11--29+L2929+L29--1919––X17X17--1919==33.936+60.20833.936+60.208--6060==34.14434.144S2S1SS=S1S=S1--S2=12.5+5*3S2=12.5+5*3––5*2=17.55*2=17.5L33L33--3535=S=S/sinα--L29L29--3131--L31L31--3333。=17.5/=17.5/sinsin6620

5、’25”20’25”--33.35633.356--58.85958.859=66.2511Ⅱ5.0Ⅲ5.045.06.512.556789106.5111213141516L=1383912513839001213.839+12.5+13.839+0.012=4019040.1903-5L=13.839+6.25+13.839+0.008=33.9367-13L=13839+=13.839+0+13839+0=+13.839+0=2767827.67811-17L=13.839+0+13.839+0=27

6、.67819-25L=16.853+6.25+15.009+0.008=38.12023-27L=13.839+6.25+16.853+0.008=36.95027-29紧L=19.962+6.25+16.853+0.008=43.07329-33L=16.85312513+12.5+16.85300123+0.012=4621846.21835-41L=16.853+12.5+16.853+0.012=46.21831-37L=19.962+454.5+13839+0+13.839+0.008=38309

7、38.30937-39L=13.839+6.25+13.839+0.008=33.93615-49紧L=15.009+4.5+13.839+0.008=33.35649-51L=13.839+0+13.839+0=27.67857-59L=5/i45/sin4。45’49”6020845’49”=60.20843-31紧L=13.839+4.5+15.009+0.008=33.35625-43紧L=5/sin6。202025=45’25”=45276.27649-45紧X=X+L+X=14195141.95

8、25-27-29-3125-2727-29紧29-3143更靠近25可延长8道有效长X=L+L=93.56425-43-3125-43紧43-31紧L紧密配列L=X-L25-4343-3125-27-29-3125-43X=L+L+X=106.03419-25-43-4519-25紧25-43紧43-4549更靠近15可延长9、10道X=L+L=79212=79.212有效长15-49-4515-49紧49-45