Allowance of lateral breakthrough error for super long tunnels from 20km to 50km
- 9 Downloads
Up to now there is no specification about the allowance of lateral breakthrough error for super long tunnel from 20 km to 50 km. On the basis of the design of GPS networks located outside and inside tunnel traverse network, we propose a method for calculating the influence value caused by control surveying errors. Through a lot of simulative calculations and combination with piercing practice of super tunnels in Wan Jiazai Project, Shanxi province, we present an allowance table of lateral breakthrough error for super long tunnels from 20 km to 50 km.
Key Wordssuper long tunnel lateral breakthrough error allowance
Unable to display preview. Download preview PDF.
- 1.Chen Y Q, Li Q Y (1995) Engineering geodesy. Beijing: Publishing House of Surveying and Mapping.Google Scholar
- 2.Zhang Z L (2002) Engineering geodesy. Wuhan: Publishing House of Wuhan University.Google Scholar
- 3.Zhang X D, Zhang Z L (1998) Surveying of tunnel engineering. Beijing: Publishing House of Surveying and Mapping.Google Scholar
- 4.Zhang Z L, Guo J M, Huang Q Y, et al. (1996) Research into an automatic system of data gathering and processing for terrestrial control surveying. Pelzer zum 60. Geburtstag, Hannover.Google Scholar