【摘要】 桥台锥坡设计是容易被设计者忽略的问题 ,设计不当会造成坡比过陡而影响稳定 ,并且由于无具体的底面曲线方程 ,导致施工放样困难 ,本文证明了锥坡底面曲线实际为正椭圆的一部分 ,并推导出曲线方程 ,依据方程讨论了锥坡坡比设计应注意的问题更多还原

【Abstract】 Abutment conic slope design is easy neglected by designers.Improper design will cause the excessively steep slope ratio,affecting the stabilization of driving,lead to difficult construction field layout due to withhout specific equation for bottom curves.The paper clarifies that the bottom curves of conic slope is a part of regular ellipse in fact,derives the curve equation,and discusses the problems which must be noticed in conic slope ratio design,around this equation更多还原