Abstract
Density identification method of dam foundation deep overburden is put forward. The Weibull distribution model is established based on 8 holes, 106 points field pressuremeter tests in dam foundation deep overburden of Shuangjiangkou Hydropower Station. Parameters of the distribution are estimated by least-squares method based on the test results above; and the goodness-of-fit of Weibull distributions is tested. The corresponding relations among pressuremeter modulus, density and pressure are investigated by 20 sets of model tests using the given grading curve acquired in field exploration. The exponential relation of pressuremeter modulus and density is determined by model tests. Based on those above, the authors carry out randomly numerical simulation of the density of dam foundation deep overburden. The simulated density of second-overburden is obtained and its practicability is proved through comparing with exploration results.
| Translated title of the contribution | Density Identification Method of Dam Foundation With Deep Overburden |
|---|---|
| Original language | Chinese (Simplified) |
| Pages (from-to) | 2073-2078 |
| Journal | Rock and Soil Mechanic |
| Volume | v. 32 |
| Publication status | Published - Jul 2011 |
| Externally published | Yes |
Keywords
- Deep Overburden
- Density Identification
- Weibull Distribution
- Randomly Simulation
- Pressuremeter Test