| 数字地面模型在道路测设中的应用及精度分析 |
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| 引用本文： | 唐正光,汪洵泽,朱伟明,张艳飞,何嘉.数字地面模型在道路测设中的应用及精度分析[J].昆明理工大学学报(理工版),2008,33(3):62-65. |
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| 作者姓名： | 唐正光 汪洵泽 朱伟明 张艳飞 何嘉 |
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| 作者单位： | 1. 昆明理工大学建筑工程学院,云南昆明,650224
2. 云南省公路规划勘察设计院,云南昆明,650000 |
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| 基金项目： | 交通部西部交通科技课题
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云南省自然科学基金 |
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| 摘 要： | 数字地面模型(DTM)已广泛应用于工程各领域,特别在道路设计方面,但其精度有待探讨.通过实际工程,总结了DTM再道路设计中的应用,并应用不同的方案建立DTM,获取路线设计所需的纵、横地面数据,计算路基土石方数量,对比分析得出其精度尚不能满足道路施工图设计的要求,误差属于稳定的系统误差.并分析了其精度的影响因素,提出相应的措施.
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| 关 键 词： | 数字地面模型(DTM) 道路设计 系统误差 |
Application of DTM to Road Survey and Its Precision Analysis |
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| TANG Zheng-guang,WANG Xun-ze,ZHU Wei-ming,ZHANG Yan-fei,HE Jia.Application of DTM to Road Survey and Its Precision Analysis[J].Journal of Kunming University of Science and Technology(Natural Science Edition),2008,33(3):62-65. |
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| Authors: | TANG Zheng-guang WANG Xun-ze ZHU Wei-ming ZHANG Yan-fei HE Jia |
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| Abstract: | With the extensive application of DTM to various fields especially to road design,question still remains as to its precision. Based on practical projects,a comprehensive account of DTM's application is offered.DTM is then set up with disparate schemes so as to obtain data of vertical and horizontal transection of a road and to calculate soil-stone amount of the roadbed.It is shown through a comparison analysis that the precision affected by systematic errors does not meet the needs set in the drawing design.The factors affecting precision are then analyzed.Countermeasures are finally put forward. |
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| Keywords: | DTM road design system error |
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