Abstract
For the design of powerhouse caverns It Is necessary to use prior information from other projects and a theory to estimate the rock mass parameters, especially in the early studies. First, the distribution functions of several joint parameters are discussed. The density function of Young's modulus E is derived from the function of the deformabll1ty following a normal distribution. Rock mass classification systems can be used to estimate the shear strength parameters of rock mass. A correlation between simple input parameters for classification systems, which can be easily determined, and the Young's modulus E is presented. With the use of such parameters It 1s possible to estimate the coefficient of variation of deformabllity and the representative volume of an in-situ deformabll1ty test. As can be seen the variation and the reauired rock mass volume for taste 4c cmaller fnr woskor rnrk massess.
Translated title of the contribution | The use of prior information for the design of powerhouse caverns |
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Original language | German |
Pages | 1223-1226 |
Number of pages | 4 |
State | Published - 1991 |
Event | 7th International Society for Rock Mechanics and Rock Engineering Congress 1991 - Aachen, Germany Duration: 16 Sep 1991 → 20 Sep 1991 |
Conference
Conference | 7th International Society for Rock Mechanics and Rock Engineering Congress 1991 |
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Country/Territory | Germany |
City | Aachen |
Period | 16/09/91 → 20/09/91 |