铁路站场数字化设计系统中纵横断面设计模块的研发

发布时间：2018-02-20 19:13

本文关键词： 铁路站场纵断面设计格网-R树索引横断面设计　出处：《中南大学》2014年硕士论文　论文类型：学位论文

【摘要】：摘要：纵横断面设计是铁路站场设计过程中的重要环节,其设计效率和质量对整个铁路站场的建设与运营具有极其重要的影响,因此研发铁路站场纵横断面机助设计模块具有重要意义。本文基于AutoCAD的二次开发技术,开发了铁路站场数字化设计系统的纵横断面设计模块。主要研究内容及研究成果如下： 1.基于ObjectARX自定义实体技术定制了纵断面坡度线实体；将站场股道坡段划分为道岔顺接坡道、轨面高程顺接坡道、主坡道,并研制了相应的机助设计方法。 2.通过差商法识别直线点、最小二乘原理拟合坡段、坡段整饰三步循环实现了既有铁路站场股道坡度的自动拟合；实现了提取既有铁路站场股道纵断面数据、抬落道量信息动态显示、最小道床厚度动态检测等既有铁路站场股道纵面改建的功能。 3.提出了一种横断面设计时快速检索相关设备的格网-R树索引法,先对整个站场研究范围建立规则的格网索引,通过格网索引缩小检索范围,然后为每个格网内部的站场设备信息建立R树索引,确定相关站场设备。 4.根据站场横断面相关设备信息,建立了单路拱和多路拱的路面横坡设计方法,并自动计算线间沟和路肩点的空间位置,应用标准边坡模板与初始地面线求交计算出边坡设计线和水沟的几何形态和位置,定制了横断面路面实体、边坡实体和水沟实体,应用反应器机制实现了横断面交互设计时各相关实体的关联设计。 5.开发了铁路站场数字化设计系统中纵横断面机助设计模块,并以兰新线乐都南车站为例进行了测试,证明了本论文所述理论和方法的正确性以及系统的实用性。
[Abstract]:Abstract : The design of longitudinal cross section is an important link in the design process of railway station . The design efficiency and quality of railway yard are very important to the construction and operation of the whole railway station . Therefore , the design module of longitudinal section of railway station yard digital design system is developed based on the secondary development technology of AutoCAD . The main research contents and the research results are as follows : 1 . The profile slope line entity is customized based on the custom entity technology . The slope segment of the yard is divided into turnout cis - connecting ramp , track - surface elevation compliant ramp and main ramp , and the corresponding aided design method is developed . 2 . By means of differential quotient method to identify straight point , least square principle fitting slope section and slope section finishing three - step cycle , the automatic fitting of existing railway station track slope is realized ; and the function of reconstructing the longitudinal surface of existing railway station is realized by extracting the profile data of existing railway station , dynamic display of lift - down track amount information , and dynamic detection of minimum bed thickness . 3 . A grid - R tree index method for quickly searching relevant equipment in cross - section design is put forward . Firstly , the grid index of the rules is established for the whole station field research scope , the search range is narrowed by the grid index , and then the R - tree index is established for the station device information inside each grid network , and the related station equipment is determined . 4 . According to the information of the cross section of the station , the design method of the pavement cross slope of single arch and multi - way arch is established , and the space position of the inter - line ditch and the shoulder point is automatically calculated . The geometric shape and location of the slope design line and the ditch are calculated by using the standard slope template and the initial ground line . The cross - sectional pavement entity , the slope entity and the ditch entity are customized , and the related design of the relevant entities in the cross - section interaction design is realized by using the reactor mechanism . 5 . The design module of longitudinal cross - section machine in the digital design system of railway station yard is developed , and the test is carried out taking the Lunnan station of Lanzhou Xinline as an example , which proves the correctness of the theory and method and the practicability of the system .

【学位授予单位】：中南大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U291

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