1642-2511 Divergency verification of predicted values and monitored deformation indicators in specific condition of Thong Nhat underground coal mine (Vietnam) Weryfikacja rozbieżności wartości prognozowanych i monitorowanych wskaźników deformacji w warunkach podziemnej kopalni węgla Thong Nhat (Wietnam) Quoc Long Nguyen author Chi My Vo author Khac Luyen Bui author Hanoi University of Mining and Geology, Vietnam Vietnam Association of Geodesy, Cartography and Remote Sensing, Vietnam Correspondence to: Nguyen Quoc Long nguyenquoclong@humg.edu.vn Correspondence to: Vo Chi My vochimytdm@gmail.com Correspondence to: Bui Khac Luyen buikhacluyen@humg.edu.vn 16 11 2016 Vol. 15 (2016) 2016 15 22 Copyright © 2016 2016 <p>During the last several years, the problem of mining damage on the Quang Ninh coalfi eld has become more and more serious. Some methods of prediction theories have been applied including the Budryk-Knothe’s infection function one. This article presents the analysis and comparison of predicted result and monitored subsidence indicators for case study of Thong Nhat underground coal mine (Viet Nam) in the light of S. Knothe time function.</p> 1 Chinh, D.N. (1997). Monitoring ground displacements. Hanoi: Hanoi University of Mining and Geology. 2 Hejmanowski, R. (2001). Prognozowanie deformacji górotworu i powierzchni na bazie ugólnionej teorii Knothego dla złóż surowców stałych ciekłych i gazowych. Wyd. IGSMiE PAN. Poland: Kraków. 3 Kratzsch, H. (2012). Mining subsidence engineering: Springer Science &amp; Business Media. 4 Ministry of Information &amp; Communications. (2013). Vietnam National Specifications on Mine Surveying. Vietnam. 5 Reddish D.J. and B.N. Whittaker. Subsidence: occurrence, prediction and control. England: Elsevier. 6 Truc, K. K. (1991). Defining the parameters of ground movement on Lo Tri zone (Thong Nhat coal mine). Hanoi, Institute for Mining science and Technology.