摘要
由于影响涵洞长度的因素较多，并且各因素间相互制约，使得涵洞长度计算较为繁琐。为此，本文从空间分析着手，将这个问题处理为一条过靠近路基边坡面的帽石内角的空间直线（方程）与路基边坡面一空间曲面（方程）相交的空间解析问题，使涵长计算公式的推导过程极为简便、直观，进而找出可能情况下的涵洞长度表达式。并用一种快速逼近数值的方法编制出电算程序，在４８６机上１秒钟内即可算出结果。
Because of there are many factors which influence the length of the culvert,furthermore there are interactions between these factors,therefore the calculation of the length of the culvert is rather complex.Based on the spatial analysis,this problem is treated as a spatial analytic problem with two intersecting equations:(1)a spatial linear equation in which the straight line passes through the inner corner of the cap-beam of the culvert nearby the slope of the roadbed, and (2)a spatial cruved-surface equation of that slope of the roadbed.By this method, the deducting procedures of the formula for calculating the length of the culvert are very easy, convenient and audlo-visual, and thereby the expression formula of the length of the culvert under possible conditions has been obtained.The computer programs are made by using a method of rapid approaching the real value,and the calculating results may be obtained on Computer 486 within only one second.
出处
《铁道工程学报》
EI
1996年第1期87-92,共6页
Journal of Railway Engineering Society
关键词
曲线
涵洞长度
空间分析
程序
curve
length of culvert
spatial analysis
program
