Application of new subsidence prediction methods for damage minimization of surface structures above coal minesFunded under: ECSC-COALRES 3C
This project has developed a physical test and computer program which simulates subsidence above coal mines. Surface subsidence is a consequence of mine exploitation and occurs when the rock tries to fill empty spaces left after excavation. Damage may result because of differing settlement levels affecting buildings, water supply schemes, sewer and electricity and also causing ground fractures and slope slidings. To approach this problem, the many variables that have to be considered include rock mass variations, surface features, geological, structural, hydrogeological and geomechanical properties of the rock mass. A physical model which simulated subsidence was built within a glass box and this allowed the partners to obtain significant statistical values for understanding the effects of the variables involved. A better understanding of the flow mechanism which allowed the partners to explain immediate subsidence effects was also reached. The data from the simulation were then used to calibrate a computer program (FLUXHOM3.BAS) to predict subsidence values in two real cases, a coal mine in Russia and the Portugese mine of Germunde.
Bibliographic Reference: EUR 17963 EN (1998) 145pp.
Availability: Available from OOPEC Sales agents
ISBN: ISBN 92-828-4490-0
Record Number: 199910030 / Last updated on: 1999-02-11
Original language: en
Available languages: en