ESTIMATING METHOD FOR DISPLACEMENT OF PERIPHERAL WALL SURFACE OF TUNNEL

摘要

PROBLEM TO BE SOLVED: To estimate displacement of the peripheral part of a cutting face of a tunnel where prelining is easily applied. SOLUTION: An estimating method for displacement of a peripheral face of a tunnel comprises the step of obtaining an elastic modulus by regarding a surrounding ground with the bar-shaped reinforcement disposed in a radial direction of the tunnel as a ground improvement body comprising an original ground and a bar-shaped reinforcement integrated continuously and estimating the displacement of the peripheral wall of the tunnel based on the elastic modulus and distribution of ground pressure relief ratios on the ground in the vicinity of the tunnel cut face by excavation. COPYRIGHT: (C)2004,JPO