摘要
在分析采用坚强边理论对陀螺定向导线进行分步处理算法优缺点的基础上,提出一种更为严密的矿井陀螺定向导线整体平差模型,并给出了该模型的数学演绎过程,理论上证明了该模型的优越性。同时,尝试将陀螺观测值纳入模型,提出了一种基于网形结构的自适应定权算法,最大程度上精化随机模型,提高井下导线点位的精度。采用某矿山建立的井下首级控制网实例分析比较表明,新模型可以有效的抑制导线网因角度误差传递产生的整体摆动,自适应定权算法有效的纠正了由于陀螺边加入强制改正角度产生的部分扭曲现象,导线网的网型结构得到了有效加强,点位精度有一定程度提高。
The traditional method treats gyro-side as strong side in underground control network, which has proved to be not sustainable. Moreover, there is no appropriate way to compute whole network when gyro-sides are added. A new rigorous adjustment in one cast model was proposed to resolve the problem. The theoretical derivation of the new model was given and the theoretical advantage of the model was approved. At the same time, the gyro-side observations were attempted to put into the new model, and a self-adaptive weighting algorithm based on configuration structure was pro- posed, which optimized the model and improved the accuracy of traverse points. The case study of an underground first control network demonstrates that the proposed new model can effectively restrain the swing phenomenon caused by an- gle error propagation. The self-adaptive weighting algorithm can effectively correct traverse network warping caused by the joint of gyro-sides,therefore,the traverse network structure has been effectively enhanced and the point accuracy has been improved.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2013年第10期1786-1791,共6页
Journal of China Coal Society
基金
国家自然科学基金资助项目(41074010)
江苏省研究生培养创新工程基金资助项目(CXZZ11-0299)
江苏高校优势学科建设工程资助项目(SZBF2011-6-B35)
关键词
陀螺定向边
整体平差
井下导线
自适应定权
gyro-side
adjustment in one cast
underground traverse
adaptively weighting
