【摘要】：目前,我國(guó)各鐵路設(shè)計(jì)單位面臨的既有線改建設(shè)計(jì)任務(wù)日益繁重,現(xiàn)有的設(shè)計(jì)方法已不能滿足實(shí)際生產(chǎn)的需要,且國(guó)內(nèi)對(duì)于既有鐵路改建線路CAD技術(shù)方面的研究仍較少,因此研究既有鐵路改建線路CAD技術(shù)具有極其重要的意義。本文通過(guò)深入分析現(xiàn)有的線路設(shè)計(jì)方法,結(jié)合既有鐵路平、縱面改建設(shè)計(jì)特點(diǎn),開(kāi)發(fā)了改建鐵路線路數(shù)字化輔助設(shè)計(jì)系統(tǒng),主要完成了以下工作： (1)基于最優(yōu)化原理實(shí)現(xiàn)了曲線撥量的自動(dòng)優(yōu)化計(jì)算,解決了針對(duì)不同情況的既有線平面重構(gòu)問(wèn)題。 (2)提出了“Ⅱ線模式”改建設(shè)計(jì)方法。深入分析設(shè)計(jì)線利用段、并行改建段、繞行改建段的計(jì)算原理,提出將設(shè)計(jì)線按照Ⅱ線的設(shè)計(jì)模式進(jìn)行設(shè)計(jì),用Ⅱ線并行段和繞行段來(lái)處理并行改建和繞行改建情況的設(shè)計(jì)方法。該方法保持了設(shè)計(jì)線的完整性,可大幅度簡(jiǎn)化設(shè)計(jì)過(guò)程、提高設(shè)計(jì)效率。 (3)建立了分段參照線形設(shè)計(jì)模型。根據(jù)“Ⅱ線模式”改建設(shè)計(jì)方法深入分析線路平面參照關(guān)系,建立了以已知線路、參照關(guān)系矩陣為自變量的線形設(shè)計(jì)模型,提出了模型的數(shù)據(jù)結(jié)構(gòu)和解算方法。并結(jié)合線形設(shè)計(jì)模型,給出了針對(duì)各種既有線平面改建情況的解決方案。 (4)提出了“三步循環(huán)”既有線縱坡恢復(fù)方法。利用差商法和最小二乘原理通過(guò)辨別直線點(diǎn)、直線擬合求交、坡段整飾三步循環(huán)實(shí)現(xiàn)了變坡點(diǎn)的自動(dòng)識(shí)別和豎曲線擬合,解決了既有線縱坡恢復(fù)問(wèn)題。將既有線縱坡改建歸納為并行等高、并行不等高、Ⅱ線繞行三種情況并給出實(shí)現(xiàn)方法。 (5)利用VC++.net2002和ObjectARX2006開(kāi)發(fā)工具,開(kāi)發(fā)了改建鐵路線路數(shù)字化輔助設(shè)計(jì)系統(tǒng),并通過(guò)工程實(shí)例驗(yàn)證了程序的正確性和實(shí)用性。
文內(nèi)圖片：
圖片說(shuō)明：既有鐵路平面重構(gòu)流程示意圖
[Abstract]:At present, the existing railway design units in our country are facing more and more onerous tasks of reconstruction design of existing railway lines, the existing design methods can no longer meet the needs of actual production, and the domestic research on CAD technology of existing railway reconstruction lines is still less, so it is of great significance to study the CAD technology of existing railway reconstruction lines. Based on the deep analysis of the existing line design methods and the characteristics of the existing railway flat and longitudinal reconstruction design, the digital auxiliary design system of the rebuilt railway line is developed in this paper. The main work is as follows: (1) based on the optimization principle, the automatic optimization calculation of the curve allocation is realized, and the problem of plane reconstruction of the existing railway line according to different situations is solved. (2) the reconstruction design method of "second line mode" is put forward. The calculation principle of the utilization section, parallel reconstruction section and bypass reconstruction section of the design line is deeply analyzed, and the design method of the design line according to the design mode of the second line is put forward, and the parallel section and the bypass section of the second line are used to deal with the parallel reconstruction and the bypass reconstruction. This method maintains the integrity of the design line, greatly simplifies the design process and improves the design efficiency. (3) the piecewise reference linear design model is established. According to the reconstruction design method of "second line mode", the line plane reference relationship is analyzed deeply, and the linear design model with known line and reference relation matrix as independent variable is established, and the data structure and solution method of the model are put forward. Combined with the linear design model, the solutions for the plane reconstruction of various existing lines are given. (4) the longitudinal slope recovery method of "three-step cycle" existing railway line is put forward. By using the difference quotient method and the least square principle, the automatic identification and vertical curve fitting of the variable slope point are realized by distinguishing the straight line point, the straight line fitting and intersecting, and the slope section finishing three-step cycle, and the problem of longitudinal slope recovery of the existing railway line is solved. The longitudinal slope of the existing railway line is transformed into three cases: parallel equal height, parallel unequal height and second line winding, and the implementation method is given. (5) the digital aided design system of rebuilt railway line is developed by using VC. Net 2002 and ObjectARX2006 development tools, and the correctness and practicability of the program are verified by an engineering example.
【學(xué)位授予單位】：中南大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2011
【分類號(hào)】：TP391.72;U212.3

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 李家穩(wěn),陳峰,張海燕,施仲衡;坐標(biāo)法優(yōu)化撥距計(jì)算方法的研究[J];北方交通大學(xué)學(xué)報(bào);2004年04期

2 姚連璧;車載GPS道路數(shù)據(jù)采集與線形參數(shù)的計(jì)算[J];測(cè)繪學(xué)報(bào);2002年S1期

3 丁克良,劉大杰,周全基;既有鐵路曲線整正平差算法[J];測(cè)繪學(xué)報(bào);2004年03期

4 詹振炎;;梯度投影法及其在鐵路縱斷面設(shè)計(jì)中的應(yīng)用[J];長(zhǎng)沙鐵道學(xué)院學(xué)報(bào);1979年04期

5 李偉;蒲浩;;一種求解2條任意類型緩和曲線交點(diǎn)的通用算法[J];鐵道科學(xué)與工程學(xué)報(bào);2007年01期

6 李偉;蒲浩;彭先寶;;基于方向加速法的鐵路既有線平面重構(gòu)優(yōu)化算法[J];鐵道科學(xué)與工程學(xué)報(bào);2009年03期

7 莫春柳;最小二乘逼近曲線的計(jì)算機(jī)程序設(shè)計(jì)[J];廣東工業(yè)大學(xué)學(xué)報(bào);1999年02期

8 程軍民;淺談高速鐵路線路平面設(shè)計(jì)[J];甘肅科技;2003年07期

9 鄧小春;;淺談公路的線形設(shè)計(jì)[J];黑龍江交通科技;2010年04期

10 劉元朋,張定華,桂元坤,李永奇;用帶約束的最小二乘法擬合平面圓曲線[J];計(jì)算機(jī)輔助設(shè)計(jì)與圖形學(xué)學(xué)報(bào);2004年10期

相關(guān)博士學(xué)位論文 前1條

1 蒲浩;現(xiàn)代路線CAD系統(tǒng)關(guān)鍵技術(shù)研究與應(yīng)用[D];中南大學(xué);2002年

相關(guān)碩士學(xué)位論文 前8條

1 王懷;數(shù)字鐵路選線系統(tǒng)的研究及實(shí)現(xiàn)[D];西安科技學(xué)院;2002年

2 戈向群;老路改建工程線形的設(shè)計(jì)與研究[D];東南大學(xué);2004年

3 李妍;地鐵線路縱斷面計(jì)算機(jī)輔助設(shè)計(jì)研究[D];北京交通大學(xué);2007年

4 戴建軍;鐵路勘測(cè)設(shè)計(jì)一體化系統(tǒng)的研究與開(kāi)發(fā)[D];中南大學(xué);2007年

5 鄭勇;山區(qū)公路縱斷面線形自動(dòng)化設(shè)計(jì)研究[D];湖南大學(xué);2008年

6 王磊;既有鐵路平面改建CAD系統(tǒng)理論與方法的研究[D];中南大學(xué);2008年

7 邵明亮;舊路加寬改建設(shè)計(jì)與施工技術(shù)研究[D];長(zhǎng)安大學(xué);2009年

8 鐘晶;城市軌道交通線路CAD系統(tǒng)研究與開(kāi)發(fā)[D];中南大學(xué);2009年

，

本文編號(hào)：2510480