| Author | Kamchai Choosrithong |
| Note | A thesis submitted in partial fulfillment of the requirements for the
degree of Master of Engineering in
Geotechnical and Earth Resources Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Abstract | The assessments of design analysis by means of numerical analysis of conventional
tunnelling in weak ground condition are reviewed. A series of numerical analysis focusing
on the two-dimensional finite element analyses is performed to investigation behaviour of
ground and lining interaction during tunnel excavation in various geological conditions.
The plane strain model is implemented with consideration of the three-dimension stresses
effect at the excavation face using either stress or stiffness approach. A sophisticated
model of shotcrete lining is modelled using the elastic model incorporating effect of
stiffness with time dependent behaviour.
The parametric study demonstrates that the excavation sequencing has a significant effect
on the stress resultants and deformations of tunnel lining system. The deformation in the
vicinity of the excavation boundary plays an important role in controlling the stability of
the tunnel during excavation. The larger area of the excavation is the larger deformation.
Bending moment is of particular importance in the design of the lining system which
mostly occurs in the area between the connection of lining and in the distorted lining.
In the analysis of a tunnel case history, the Shimizu tunnel no.3. The jointed rock mass
model was adopted. The results were comparable with the monitored tunnel deformation
and support load. |
| Year | 2015 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Geotechnical Engineering (GE) |
| Chairperson(s) | Noppadol Phien-wej; |
| Examination Committee(s) | Pham Huy Giao ;Tian Ho Seah; |
| Scholarship Donor(s) | Royal Thai Government Fellowship; |