ROCK MASS CHARACTERIZATIONS IN THE SHIKOKU REGIONAL TUNNEL BASED ON MEASUREMENT RESULTS

DOI Web Site 2 References

Bibliographic Information

Other Title
  • 内空変位計測データに基づく四国地方のトンネルにおける地山挙動特性

Description

Using data gathered during construction of the expressway tunnels in Shikoku, this paper serves to distinguish between typical rock mass in Shikoku and other geological regions by analyzing rock mass characteristics in each region. The typical rock masses in Shikoku are the Ryouke Group, the Izumi Group, the Sanbagawa Group, the Chichibu Group and so on. The results of comparing two rock mass characterizations, ultimate displacement and the convergence process, are as follows: During tunneling, there was little difference in rock classification in both Shikoku and the other regions. However, despite being of the same classification, rock mass behavior varied, due to different causes, from region to region. Convergence of the displacement curve can be expressed in terms of exponential functions, Rock mass characteristics, as well, can be expressed in terms of exponential functions. It is shown that the results of the analyses are mostly in accordance with that recognized by engineers and technicians.

Journal

References(2)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top