Application of DiNi12 Digital Level in Region Leveling
详细信息
- 责任者：Meng Xiangang (First Crust Monitoring Center ; China Earthquake Administration ; Tianjin 300180 ; China) ; Gao Yanlong
- 刊名：North China Earthquake Sciences
- 出版年：2011
- 卷期：29(3)
- 关键词：水准测量 ; leveling
- 页码：p.44-47
- 图表：1 illus., 3 tables, 5 refs.
- 分类号：2100
- 出版序号：20122794
- issnNo：ISSN1003-1375
- isbnNo：CN13-1102/P
摘要
///Two types of digital levels (Zeiss DiNi12 and Trimble DiNi12) are checked in site and field.The field experiment is carried out in the west of Tianjin.The leveling route reaches 409.3 km in length,including 131 segments,which form 13 closed leveling lines.The experiment results indicate that single reading accuracies of first-class can be achieved even when sight distance is below 50 m,and the working speed is about 5.4 km per day.For cross-fault deformation observation,the leveling route is 115.9 km in length,which is divided into 131 segments with sight distance below 30 m.The working speed reaches 2.8 km per day.These experiments show that DiNi12 Digital level can applied in region leveling instead of Ni002 and Ni002A automatic levels.
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