In a former paper of the authors a concept for dimensioning pressure shafts, considering the passive resistance of rock-mass, has been developed. The assumption made there was that many cracks are distributed evenly over the circumference. The width of a single fissure was estimated by a reduction factor on the cumulated width of cracks. This question was now investigated analytically on basis of common mechanical principles and was confirmed by FE calculations. On hand of examples a dimensioning concept for bridging a single fissure by the steel lining has been developed. In the annex questions frequently arising over the planning process are discussed. It is intended to facilitate an overall judgement of the individual system by better knowledge of the complex relations.
|Translated title of the contribution||Pressure shafts of hydro power plants – Bridging a single fissure in the rock mass|
|Number of pages||21|
|Journal||Geomechanics and Tunnelling|
|Publication status||Published - Dec 2022|
ASJC Scopus subject areas
- Civil and Structural Engineering
- Geotechnical Engineering and Engineering Geology