Geotechnical Engineering Journal of the SEAGS & AGSSEA ISSN 0046-5828
Vol. 48 No. 2 June 2017
Simulation of H&V Shield Behavior at Sharp Curve by Kinematic Shield Model
T. N. Huynh, H.V. Pham, M. Sugimoto, Y. Tanaka, H. Ohta and K. Yasui
ABSTRACT: Due to the restrictions of underground space use, the horizontal and vertical variation shield method (H&V shield) was innovated, of which the cross section is changed from horizontal multi-circular shape to vertical one or vice versa. However, this method has never been applied in practice. Therefore, this study aims to examine the H&V shield control method, using the developed kinematic shield model for the H&V shield. As a result, the following were found: 1) the calculated shield behavior has an overall good agreement with the planned one; 2) the ground displacement is a predominant factor affecting shield behavior; and 3) the proposed model can simulate the H&V shield behavior reasonably.
KEYWORDS: H&V shield, Articulation angle, Copy cutter range and length, Kinematic shield model
