A study on a technique of prediction for ground stabilities
Yoshjmaru Murakami, Takao Nakazawa, Mitsuhiro SEZAKI · 2026
Excavating a weak ground for a large cutting or tunnelling, if we can catch a sign of collapse at an early time, then, we shall be able to prevent its occurrence by setting a suitable protection, when the ground preserving a equilibrium has been excavated, some changes of stress field around the digging area should occur so that a new stable state may be established. This paper suggests a new method which can easily detect the change of stress within ground. Using this new measuring meter, we have carried out several tests in laboratory and in situ, thus investigated the aspects of ‘stress-rearrangement’ around a cavity.