Influences of Longwall Subsidence on a Guyed Steel Tower - A Case Study

摘要

The potential influences of mining subsidence on structural stability, integrity and functionality of guyed tower structures have not been systematically studied before. This paper presents a case study where a guyed steel tower of a telecommunication company was mined under by a longwall operation. Prior to mining, every aspect of the subsidence influences to this structure was studied. The pre-mining assessment indicated that the structure could experience vibration problem in the second half of the dynamic subsidence process. Based on the study, a simple mitigation measure was recommended and implemented and the structure was successfully protected.