竖曲线习题(共2页).doc

精选优质文档-倾情为你奉上竖曲线练习题1、 设在桩号K2 600 处设一竖曲线变坡点，高程100.00 m . i1 =1%, i2 = 2%,竖曲线半径3500 m试计算竖曲线个点高程（20m整桩即能被20整除的桩号）解： = i2 i1 = -2% 1% = -3% 为凸曲线。曲线长 L = R = 35000.03 = 105 m . 切线长 T = L/2 = 1052 = 52.5 m 竖曲线起点桩号 = (K2 600 ) 52.5 = K2 547.50竖曲线终点桩号 = ( K2 600) 52.5 = K2 652.50 竖曲线起点高程 = 100.00 52.50.01 = 99.45 m竖曲线终点高程 = 100.00 52.50.02 = 98.95 m各20 m整桩K2560 X1 = （K2 + 560）( K2 +547.5) = 12.5 m h1 =X/2R = 12.5 X12.5 7000 =