Community Research and Development Information Service - CORDIS


The surface subsidence induced by underground excavation works has been an important subject, studied by several scientists and technicians in various countries, particularly those affected by these phenomena.
Ground subsidence is mainly due to rocks tendency to fulfil the void spaces that are originated by the excavation of underground openings, particularly after their collapse.
The affected surface area is larger than the size of the underground opening and the volume of displaced rock has frequently the shape of an inverted cone.
Damage may result because of differential settlements affecting buildings water supply schemes, sewer and electricity, furthermore causing ground fractures, slope slidings etc.
One of the main objectives of projects developed to prevent the final consequences of mine exploitation involve reductionof surface degradation. In particular, large areas located above coal mines are experimenting those effects, so that a research effort is justified to minimize damage at ground structures.

Additional information

Authors: Instituto Superior Tecnico, ;Lisbon (PL),
Bibliographic Reference: EUR 17963 EN (1998) 145pp.
Availability: Available from OOPEC Sales agents
ISBN: ISBN 92-828-4490-0
Record Number: 199910445 / Last updated on: 1999-03-19
Original language: en
Available languages: en