Application of a new stress measurement device in underground marble quarrying, a case study
The paper deals with the evaluation of the stress state in an white marble underground quarry (Lasa, Bolzano, Italy), where new exploitation activities are currently in progress. In addition to the geomechan-ical study, which has shown the influence of the joint pattern on the potential structurally controlled instabilities, particular attention has been given to in situ stress evaluation by means of the stress overcoring method. The measurements were carried out by using the classical CSIR strain cell and a newly developed cell. The results offered by the two devices appear to be in acceptable agreement and suggest a rather high stress level in the natural supporting structures. The newstress measurement device is able to autonomously supply power, perform signal conditioning and continuously acquire data during the overcoring phase.
G. Iabichino M. Cravero
Istituto di Geologia Ambientale e Geoingegneria (IGAG-CNR), Torino, Italy
国际会议
The Fifth International Symposium on In-situ Rock Stress(第五届国际岩石应力研讨会)
北京
英文
499-504
2010-08-25（万方平台首次上网日期，不代表论文的发表时间）