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In contrast to other pit support, shafts have to be made watertight. The sinking of surface shafts, in particular, requires the use of expensive construction techniques. Where the seam is passed through, watertightness is no longer necessary, but the shaft is then subject to complex stresses. In this project particular attention was given to correct design of support with high bearing capacity - frequently involving the use of a variety of materials and taking account of the stability of the individual components. The persistent problems in the construction of very deep shafts are addressed and innovative solutions presented. The subject areas covered are: - numerical girder analysis of stress and deformation behaviour of circular shaft and arch-type roadway support; - optimal selection of support at seam intersection; - bearing behaviour of different construction systems for the external support of freezing shafts; - optimisation of composite shaft linings and - assessment of the stability behaviour of internal liners for composite constructions. Optimal algorithms for the dimensioning of shaft linings were developed successfully and prepared for use.

Additional information

Authors: BECKMANN D, DMT-Gesellschaft für Forschung und Prüfung mbH, Essen (DE);GÄRTNER D, DMT-Gesellschaft für Forschung und Prüfung mbH, Essen (DE);KLEIN J, DMT-Gesellschaft für Forschung und Prüfung mbH, Essen (DE);GARTNER D, DMT-Gesellschaft fur Forschung und Prufung mbH, Essen (DE)
Bibliographic Reference: EUR 13350 DE (1990) 117 pp., MF, ECU 8
Availability: (2)
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