DESIGN AND OPTIMIZATION OF PROPOSED ROAD TUNNEL ON SIDDHARTHA HIGHWAY FROM UPPER SIDDHABABA TO DOBHAN

Abstract

The final year project for Bachelor’s in civil engineering, provided by Tribhuvan University serves as a vital factor for understanding the practical issues that one has to face during practical applications. The project is the output of all the theoretical knowledge that we have gained during these four years of the study period with the help of our supervisor and Department of Civil Engineering. Considering the various facts and as matter of our interest, we undertook the project on “DESIGN AND OPTIMIZATION OF PROPOSED ROAD TUNNEL ON SIDDHARTHA HIGHWAY FROM UPPER SIDDHABABA TO DOBHAN”. The main aim of the report is the study and design of roadway through tunnel. The report focuses on the design criteria of the road tunnel, determination of the alignment for tunnel based on geological conditions, cross-section and length of the continuous tunnel, support system design and analysis. Existing empirical and numerical methods for the stability of the proposed tunnel are used for the estimation of support pressure and design support system. A detailed numerical study was carried out in 2D finite element analysis to design the tunnel in such region. The results of analysis showed that the support pressure and deformation can be predicted very well from the numerical analysis.