摘要
随着城市各项建设与改造工程的快速进行 ,原有的平面控制点会部分地、经常地遭到破坏 ,使一些控制点成为孤点 ,只有坐标而没有通视方位 .在这些控制点间进行控制网加密 ,就只能采用无定向导线及导线网的形式 .由于多余观测值较少 ,无定向单导线可靠率低且导线点的横向误差经常超限 .将无定向导线布设为合理的、优化的网形可以克服它的这一缺点并扩大其应用范围 .为解决这些问题 ,对无定向导线的精度及布网形式进行了分析和讨论 ,并提出了有参考价值的建议 .
With the rapid development of city reconstruction,the original surveying control networks are destroyed partially and continually.As a result,many plane control points become isolate ones that have coordinates without orientations.Due to the few redundant observations,the single non-oriented traverse has low reliability,and its lateral-errors of traverse points are always not permitted.The above disadvantages can be overcome by designing the non-oriented traverse with reasonable and optimal network,as well as its application is extended.For solving above problems,the accuracy and schemes of non-oriented traverse network are analyzed and discussed in this paper,which may lead to some useful suggestions.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2002年第7期886-889,共4页
Journal of Tongji University:Natural Science
