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实训资料
1.某曲线R=600m,圆曲线长
72.27m,两端缓和曲线长各50m,每个轨缝lOmm,从直线段顺序铺设
12.5nl标准轨进入曲线直缓点的长度为
7.06m,试确定缩短轨的铺设位置?解1,计算缩短轨的所需数量50+
72.27=
305.7mm~~600里股轨线的总缩短量为=1500x因为R〉500m,故应选用缩短量K=40mm的缩短轨所需缩短轨的根数为N=£^=2Z=
7.6根,采用8根K402/o+/、2x50+
72.27=
13.8根No=
12.51£标+2外股轨线所需标准轨的根数为No^N,故缩短轨选型合理
2.列表计算缩短轨的铺设位置曲线始点计实际缩至计算点算点短量的钢轨钢轨长距离m位置判断是否钢轨累计接头直角累应后缩短量计算mm顺号度铺缩短轨类型m m计错距mm--四五六七八九—•1500Z
7.
067.06Hi2K2007nAO=--------------------6=1X52x600x
50112.
5119.57Hi1020B102=
0.025x
19.57=|
212.
5132.08Hi2620S-14=
0.025x
32.08-=
26312.
5144.59Hi B102=
0.025x
44.59=
5045.4150HY
0.02550263X=
47.
157.1Y S1=63+
57.1—50x^^=
81512.
5169.61Y S-88=63+
69.61-50x
2.5=
112612.
5182.12Y s23=63+
82.12-50x
2.5=
143712.
5194.63Y B15a=63+
94.63-50x
2.5=
17585.37100Y S=
305.7-
0.025x
172.27-
132.162=
265912.
51119.65Y s-38=63+
119.65—50x
2.5=
237102.
62122.27YH呢=
244109.
89132.16H2s-158=
305.7—
0.025x
172.27-
132.162=
2651112.
51144.67H2B7=
305.7-
0.025x
172.27-
144.672=£
51212.
51157.18H2S-208=
305.7-
0.025x
172.27-
157.182=
3001312.
51169.69H2B-15=
305.7-
0.025x
172.27-
169.692=
305142.
58172.27HZ£一£=306总
149.
93182.2Z-14=306£总。