1) elevation survey
高程联系测量
1.
Shaft's elevation survey by means of total-station meter;
全站仪用于竖井高程联系测量的探讨
2.
Against to the limit of some traditional methods in vertical shaft elevation survey,based on which the total station technology was proposed.
针对在竖井高程联系测量中一些传统方法的局限性,鉴于此提出了全站仪技术,就全站仪在立井导入高程测量中的应用以及影响测量结果的因素进行了论述,从而提高测量精度、保证测量效率。
2) Connection Survey
联系测量
1.
Application of Connection Survey Method in Track Traffic Projects;
轨道交通工程联系测量方法的应用
2.
Discussion on connection survey in underground civil defense engineering control survey;
地下人防工程控制测量中联系测量方法的探讨
3.
In this paper, the author completed the connection survey of a vertical shaft simply and precisely by the observation method of free oscillation.
本文根据作者多年建井测量的实践经验,采用自由摆动观测方法,简单快捷、高精度地完成立井联系测量中的坐标传递工作。
4) height survey
高程测量
1.
Triangle height survey method using simple total-station meter;
简便的全站仪三角高程测量法
5) height surveying
高程测量
1.
Precision of trigonometrical height surveying is restricted by the precision of vertical angle surveying all along,while the vertical angle surveying precision is mainly affected by atmosphere vertical refraction.
三角高程测量精度一直受制于竖直角的观测精度,竖直角观测精度的关键制约因素是大气竖直折射,准确的大气竖直折射计算方法是提高三角高程测量精度的关键。
6) elevation survey
高程测量
1.
The precision analysis and research on elevation survey ignoring height of the total station instrument
全站仪不量高高程测量精度的分析与研究
2.
This paper makes an approch to the application technique of total station instrument in highway elevation survey and indicates the conditions and methods of survey for meeting technical demends of highway elevation survey.
对全站仪在道路高程测量中的应用技术进行探讨,提出了满足道路高程测量技术要求的观测条件和方法。
3.
According to relevant state specifications and trade standards,as well as combined with actual application,3G HIS,the elevation survey and information system software based on 3G mobile phone is developed by Visual Studio.
根据相关国家规范、行业标准,结合实际生产,用Visual studio编程开发基于3G手机运行的高程测量及其信息系统软件——3G HIS。
补充资料:气压高程测量
气压高程测量 barometric height measurement 根据大气压力随高程变化的规律,用气压计测定两点的气压差推算高差的方法。大气压力常以水银柱高度表示,温度为0℃时 ,在纬度45°处的平均海面上大气平均压力约为760毫米水银柱。 每升高约11米,大气压力减少1毫米水银柱。一般气压计读数精度可达0.1毫米水银柱,约相当于1米的高差。由于大气压力受气象变化的影响较大,气压高程测量精度低于水准测量和三角高程测量,主要用于高差较大的丘陵地和山区的勘测工作。通常用空盒气压计和水银气压计,前者便于携带,多用于野外作业,后者常用于固定测站或检验前者。常用的气压计测高差公式为: 式中p1、p2分别为低站、高站的气压读数,T为两站的平均气温(℃)。实际应用时,按上式制成气压高程改正表以便查取。 |
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条