ON UNDERGROUND SURVEY CONTROL DESIGN
The author considers the issue of the design of underground survey control taking into account independent gyroscopic determination of the direction angles of polygon legs in unconstrained and partly constrained survey controls. An example is given for the determination of optimal length of a section and the number of sections in elongated traverses with gyroscopically oriented legs, considering regulatory and technical requirements for average square error of positioning the outmost point of an underground survey control. The article analyzes accuracy of the obtained results. The results have been trialed in the design of the underground survey control within the preset limits of minefield of the EuroChem–Usolsky Potash Plant at the Upper Kama deposit of potash–magnesium salts.
Polygon legs, underground survey controls, outmost point position error, sections with gyroscopically oriented legs, accuracy pre-calculation, maximum admissible error, average square error.
Issue number: 3
UDK: 622.1: 528.931: 681.3.06
Authors: Sapronova N. P.
About authors: Sapronova N.P., Candidate of Technical Sciences, Assistant Professor,
Mining Institute, National University of Science and Technology «MISiS»,
119049, Moscow, Russia, e-mail: Sapronova_np@mail.ru.
REFERENCES: 1. Instruktsiya po proizvodstvu marksheyderskikh rabot (RD 07-603-03), seriya 07, vyp. 15 (Guidelines on surveying (RD 07-603-03), series 07, issue 15), Moscow, GUP «Nauchno-tekhnicheskiy tsentr po bezopasnosti v promyshlennosti Gosgortekhnadzora Rossii», 2003, 120 p.
2. Instruktsiya po geodezicheskim i marksheyderskim rabotam pri stroitel’stve transportnykh tonneley VSN 160-69 (Guidelines on surveying in traffic tunneling VSN 16069), Mintransstroy.
3. Marksheyderskoe delo. Pod red. D. N. Ogloblina (Surveying. Ogloblin D. N. (Ed.)), Moscow, Nedra, 1981, 703 p.