Precision leveling at the White House
作者:
Howard S. Rappleye,
期刊:
Eos, Transactions American Geophysical Union
(WILEY Available online 1952)
卷期:
Volume 33,
issue 1
页码: 1-7
ISSN:0002-8606
年代: 1952
DOI:10.1029/TR033i001p00001
数据来源: WILEY
摘要:
This paper deals with the planning and execution of a precision‐leveling program being carried on during the reconstruction of the Executive Mansion in Washington, D. C. Unusual accuracy requirements and unusual working conditions were responsible for many departures from established practice in precision leveling. Field methods, instrumental equipment, accuracy of leveling, and observed behavior of bench marks are discussed. Special emphasis is on the unusual features of the work rather than the description of just one more leveling projec
点击下载:
PDF
(1158KB)
返 回