(university of khartoum, 2014)
Elarabi, Hussein; M. Mustafa, Ahmed
This paper aims to enumerate the methods used in tunnels analysis and construction procedures,
demonstrate and evaluate the use of PLAXIS 3D tunnel program through a comparison with analytical method.
Two methods (analytical and numerical) have been used to obtain the solution of tunnel analysis. A case study
was performed for London Transport Fleet Line, located in Green Park and consists of a single tunnel.
The analytical solution carried out using the Bobet method, whereas the numerical accomplished by finite
element PLAXIS program. Two different process of numerical analysis were conducted; with and without
respect to construction process.
The settlements at the tunnel center for the analytical, numerical without respect to construction and observed
were found 7.9, 5.72 and 6.1 mm.