- Tytuł:
- Rock mass classification in highway tunnel engineering during exploration phase and case study
- Autorzy:
-
Yanqiang, Du
Bing, Xie - Powiązania:
- https://bibliotekanauki.pl/articles/27312070.pdf
- Data publikacji:
- 2023
- Wydawca:
- Polska Akademia Nauk. Czasopisma i Monografie PAN
- Tematy:
-
inżynieria tunelowa
tunel autostradowy
klasyfikacja górotworu
ciśnienie ziemi
metoda jakości
metoda podstawowa
tunnel engineering
highway tunnel
rock mass classification
earth pressure
basic method
quality method - Opis:
- It is the foundation of tunnel engineering to classify the rock mass surrounding tunnels. However, it is not easy to precisely determine the class of rock mass in practice as sufficient geological exploration need to be completed before rock mass classification, and there exists some disputes referring to the rationalization of dozens of methods for rock mass classification through the world. The principles and procedures of the basic quality method, which are widely used in China, are presented in this paper, and the application process of the basic quality method is showed with a project case of Zhongnanshan highway tunnel which has operated in safety for nearly a decade. Then, both the advantages and disadvantages of the basic quality method are analyzed in terms of practical engineering applications. In consideration of the defects of the basic quality method, the concept of the subclassing of surrounding rock in grade III-V is developed in the end and the criterion is given to determine the subclass of rock mass. This study is aimed at providing some useful ideas and a reference for rock classification in highway tunnel engineering.
- Źródło:
-
Archives of Civil Engineering; 2023, 69, 2; 141--153
1230-2945 - Pojawia się w:
- Archives of Civil Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł