精密水准测量

1995年为了监测天津市的地面变形，配合地面沉降的精密水准测量，在天津市布设了一个GPS监测网。

In order to monitoring land subsidence in Tianjin , a GPS network was established in 1995 as a complementary means of the precise leveling .

本文采用GPS技术及常规的方向、距离和精密水准测量对三个站进行了空间归心测量。

To determine the relative positions of them , the GPS technique , traditional direction and range survey , and precise leveling are adopted in this paper .

在精密水准测量中PC-1500机的应用

The application of microcomputer PC-1500 in the accurate leveling survey

根据GPS接收机天线相位中心的几何关系，在超短基线相对定位法的基础上，利用旋转天线，结合精密水准测量，给出了一种天线相位中心偏差三维检验的方法。

On the basis of the relative positioning method and the revolving method , by using the precise leveling , a new method is put forward for examining the antenna phase center three-dimensional bias of GPS receiver with the geometric relation of the antenna phase centers and the mini baseline .

本文介绍在露天矿边坡和排土场的精密水准测量中应用PC-1500微机进行观测记录、平差计算以及内业成果整理的程序编制。

This paper presents the application of microcomputer PC-1500 in the accurate leveling survey for open pit slopes and waste piles with an emphasis on the treatment of the in-situ measurement data and the calculations for adjustment of elevation in home work .

大坝安全监测中精密水准测量的精度评定

Accuracy Appraisal of the Precision Leveling in Dam Safety Monitoring

数字水准仪应用于区域精密水准测量的有关问题研究

On digital leveller and its application to precision region leveling

基于精密水准测量的井塔水平位移研究

Study on Horizontal Displacement of Hoist Tower Based on Precision Leveling Survey

近地层空气分层模式与精密水准测量

Near ground atmospheric layer division mode and precise levelling

特殊条件下的精密水准测量实践

The Accurate Level Surveying under the Special Condition

关于精密水准测量中因瓦标尺的温度改正问题

The correction of the temperature-dependent deformation of the invar rule in the precise levelling

精密水准测量中的系统误差分析

Analysis of system errors and accurate levelling

光栅在精密水准测量自动化中的应用研究

Application of grating to fine leveling

台站短水准测量与精密水准测量有相同的地方，也有很多特殊的地方。

There are similarities and specialities between the short-range leveling of stations and the precise leveling .

本文研究提出了在前后视距不相等的情况下进行精密水准测量的方法，分析了具体的实测方案。

A method of precise levelling under unequal back-and fore-sight length is studied and presented in this paper .

大气折射误差是精密水准测量中主要系统误差之一。

The error of atmospheric refraction is one of the main systematic errors in precise levelling , especially levelling in mountainous areas .

应用精密水准测量方法，于1993年在温泉区取得三十周期的观测成果，结合以往资料进行综合分析，得出初步结论。

The paper provides the surveying results 3 periods with high-precision levelling in Hot Spring Area in 1993 . A preliminary conclusion was achieved by analysing former materials .

并利用从北京至厦门3463公里的精密水准测量资料和沿线地倾斜台站的实测潮汐因子γ值，试算了潮汐改正值。

Test calculation is also performed , using the precise leveling data got in the line from Beijing to Xiamen , about 3463 kilometers long , and the data of tide factor γ value got in the solid tide station along this line .

使用扫描仪完成一个模拟建筑物沉降的实验，通过扫描仪获得的数据与精密水准测量获得的数据来比较，说明了扫描仪监测地表沉降工作的可行性。

The laser scanner was used to solve the experiment which simulated the building subsidence . The comparison between the data form laser-scanner and data which was measured by Electronic Level could indicate that it is feasible to monitor the surface subsidence by using the laser scanner .

上海地面沉降监测工作，主要采用精密水准测量方法。根据监测对象和监测点的空间分布，可分地面沉降监测和土层变形监测，且构成三维监测系统。

The chief method of land subsidence monitoring in Shanghai is the precision levelling According to the objects of monitoring and the spatial distribution of monitoring-points , the work is divided into land subsidence monitoring and soil layer deformation monitoring . This makes up a three-dimensional monitoring system .

通过精密水准仪测量筏板标高，由变化值得到沉降，绘制等值线图。

Contour chart will be plotted throng the precision gradienter measure the raft plank height mark and settlement from the difference .

在监测的过程中，采用国家二等精密几何水准测量的方法对各监测点做了检核测量。通过随机抽取部分沉降差数据进行检核对比，证明此监测系统的测量精度是可靠的。

In the monitoring process , as checking measurement the use of Nation Second-class accurate Geometry Leveling provides settlement data , randomly taken data from which proves that this monitoring system is reliable .

数字水准仪与精密光学水准仪测量精度比较

Accuracy Comparison of Digital Level and Precision Optical Level

精密测距三角水准测量的研究

A study of precise EDM trigonometric leveling