CASS7.0软件在道路选线设计中的应用
摘要
道路选线是公路勘测设计中很重要的一环，传统的选线方法是在纸上定线的基上，选线人员到实地勘测，经过反复比较确定一个较为经济、合理的路线方案。它很大程度上取决于选线人员的实际经验和技术水平，而且费时费力，对工期相对较紧、要求不是太高的工程来说已不适用。因此，已不能满足现代公路建设的需要。为此，计算机辅助设计（Computer Aided Design,简称CAD）从原来的电子领域逐步扩展到机械和土木工程等领域，日益成为现代设计的重要手段之一，采用CAD技术进行道路选线设计，可以完成路线平、纵、横设计计算、土石方计算和调配，纵、横断面图绘制等任务。
本文通过对研究区的概况分析, CASS 7.0 工程应用模块的分析，道路选线设计基本知识的学习，土石方计算方法对比分析。在分析CASS 软件在道路工程设计中的特点的基础上，以资阳市安岳县大埝乡土地整理项目为例，对CASS7.0软件在道路工程设计中的应用进行了探讨,结合案例在电子地形图上，对项目区道路进行平面、纵断面、横断面进行了局部设计，并进行了道路土石方计算。
从CASS7.0的功能及特点来看，应用CASS7.0进行道路选线在技术上是可行的，对实际的公路选线工程及其他路线选线工程均具有实际参考价值。
关键词：CASS7.0:；道路选线；土石方计算；道路工程
Abstract
Road line selection is an important part of highway reconnaissance design, the traditional line selection method is on line on the paper, on the basis of line selection personnel to the site investigation, after repeated comparison to determine a more economic and reasonable route scheme. It depends largely on the concept of practical experience and technical level, and laborious, the period is relatively tight, not too high requirements for engineering are not applicable. So, already can't satisfy the need of modern highway construction. Therefore, Computer Aided Design (Computer Aided Design, CAD) from the original electronics field gradually extended to the mechanical and civil engineering and other fields, has increasingly become one of the important means of modern Design, CAD technology is adopted to improve the road line selection Design, can complete route flat, vertical, horizontal Design calculation, earthwork calculation, cross-sectional and longitudinal tasks such as drawing.
In this paper, by analyzing the general situation of the research region, CASS 7.0 analysis of the engineering application module, road line selection design basic knowledge of learning, conditions calculation method for comparative analysis. In analyzing the characteristics of the CASS software in the road engineering design, on the basis of in ziyang AnYueXian big Nian township land consolidation project as an example, the CASS7.0 software application in road engineering design are discussed in this paper, combined with the case on the electronic topographic map, the project area road on the plane, profile and cross section of the local design, and the road conditions are carried out.
From the perspective of the functions and features of CASS7.0, using CASS7.0 road line selection is technically feasible, route selection of practical engineering and other engineering route line selection has practical reference value.
Key words:CASS7.0:; Road line selection; Earthwork calculation; Road engineering
