怀化至通道高速公路段路基路面综合设计

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1、怀化至通道高速公路段路基路面综合设计第一章线形设计1.1平曲线的计算1.1.1平曲线要素的计算已知：JD4圆曲线半径R=1000m，转角=42º53ˊ05.3〞(右)；曲线总长；Ls=250m。计算：β0=28.6479×Ls/R=7.162，q=Ls/2=125m，p=Ls²/24R=2.604m，外距；曲线总长Lh=(α-2β0)Rπ/180+2Ls=998.481切线长；T=(R+p)×tgα/2+q=518.707切曲差。1.1.2各主点桩号的计算已知：JD1桩号为：K177+865.720；计算：直缓点桩号为ZY=JD-T=K177+846.253；缓圆点桩号为

2、HY=ZH+LS1=K177+347.013曲中点桩号为QZ=ZY+L总/2=K177+846.253；圆缓点桩号为HY=ZH+LS1=K178+095.494圆直点桩号为YZ=ZY+Ls=K178+345.494。78/781.1.3逐桩坐标表桩号坐标桩号坐标N(X)E(Y)N(X)E(Y)K176+5002886015.968495782.0482K177+0002885519.923495844.8127K176+5202885996.127495784.5588K177+0202885500.082495847.3233K176+5402885976.285495

3、787.0694K177+0402885480.24495849.8339K176+5602885956.443495789.5799K177+0602885460.398495852.3444K176+5802885936.601495792.0905K177+0802885440.556495854.855K176+6002885916.759495794.6011K177+1002885420.714495857.3656K176+6202885896.918495797.1117K177+1202885400.873495859.8762K176+64028858

4、77.076495799.6223K177+1402885381.031495862.3868K176+6602885857.234495802.1328K177+1602885361.189495864.8973K176+6802885837.392495804.6434K177+1802885341.347495867.4079K176+7002885817.55495807.154K177+2002885321.505495869.9185K176+7202885797.709495809.6646K177+2202885301.664495872.4291K176

5、+7402885777.867495812.1752K177+2402885281.822495874.9397K176+7602885758.025495814.6857K177+2602885261.98495877.4502K176+7802885738.183495817.1963K177+2802885242.138495879.9608K176+8002885718.341495819.7069K177+3002885222.296495882.4714K176+8202885698.5495822.2175K177+3202885202.455495884.

6、982K176+8402885678.658495824.7281K177+3402885182.613495887.4926K176+8602885658.816495827.2386K177+347.032885175.655495888.3729K176+8802885638.974495829.7492K177+3602885162.771495890.0017K176+9002885619.132495832.2598K177+3802885142.926495892.49K176+9202885599.291495834.7704K177+4002885123

7、.075495894.9259K176+9402885579.449495837.281K177+4202885103.214495897.2776K176+9602885559.607495839.7915K177+4402885083.339495899.5133K176+9802885539.765495842.3021K177+4602885063.449495901.601278/78桩号坐标桩号坐标N(X)E(Y)N(X)E(Y)K177+4802885043.54495903.5091K177+960288457