架空输电线路角度法观测弧垂施工技术.pdf

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1、角度法观测弧垂施工技术手册目录前言................................................................1相关人员职责......................................................................1第一章弧垂的概念......................................................1一、弧垂.............................................................

2、.............1二、弧垂的衡量方法................................................................1第二章弧垂观测档的选择................................................2观测档的选择..................................................................2第三章弧垂观测.......................................................3一、弧

3、垂观测步骤..................................................................3二、弧垂观测方法..................................................................3三、弧垂计算及观测注意事项........................................................5四、经纬仪找平弧垂的方法和注意事项................................................5第四章角

4、度法弧垂观测...................................................6一、档端角度法....................................................................6二、档内角度法....................................................................8三、档外角度法...................................................................10四

5、、档侧角度法...................................................................11第五章弧垂检查........................................................15一、档端角度法...................................................................15二、档外角度法................................................................

6、...16三、档侧角度法...................................................................17第六章弧垂调整.......................................................18一、考虑弹性系数影响.............................................................18二、不考虑架空线弹性系数的影响...................................................19附

7、件部分................................................................20一、观测档弧垂的计算.............................................................20二、孤立档的观测弧垂值计算.......................................................22三、角度法观测档弧垂计算附表....................................................