Ditapis dengan
Numerical Study on High Stiffness Segmental Joints of Shield Tunnels
Deep buried drainage shield tunnels have the characteristics of large buried depth and high inner water pressure. The load effect of high inner water pressure and large earth pressure causes the increase of bending moment and decrease of axial force in the joint section. To meet the requirements of bearing capacity and deformation of lining structures, high stiffness segmental joints (HSSJs) wi…
Experimental and Numerical Study on Longitudinal Axial Force and Deformation …
Dislocation between adjacent rings and opening of conferential joints are two typical distress of shield tunnel due to longitudinal uneven settlement. However, most existing analysis methods only considered one distress. In this study, a longitudinal deformation model of shield tunnel is proposed based on the longitudinal deformation mechanism, which takes both bending deformation and shear def…
Analytical Solution of Underneath Tunnelling-Induced Deformation of Existing …
Tunnelling underneath the existing tunnels are very common these days. It is obvious that the under-crossing tunnelling will affect and even damage the existing tunnels. An analytical method is proposed in this paper to better understand the effects of the under-crossing tunnelling on the existing tunnel. The existing tunnel is modeled as a Timoshenko beam lying on a Kerr foundation. The validi…
Numerical Investigation on the Mechanical Characteristics of a Special-Shaped…
A shell-spring finite element model of a special-shaped tunnel was established to investigate the distribution of internal forces and deformation mode of the lining at the designed buried depth. The numerical results were compared with prototype loading test results and uniform beam model, which showed that the shell-spring model can be an optimal model to calibrate the 3D distribution of the i…
BOUSDEF : A Backcalculation Program for Determining Moduli of a Pavement Strc…
Trr No. 1260 Pavement Design, Management And Performance., pp. 166-179 This paper has presented a microcomputer program for back-calculating the moduli of a pavement structure using deflection basin data. The solution techniques for use in developing the program are described, including use of the method of equivalent thicknesses, Bousinesq theory, consideration of non linearity of pavement ma…
Fuzzy Optimized Choice for Highway Network Planning Alternatives
Proceedings of the Eastern Asia Society for Transportation Studies, volume 2.
Graphic processing in civil engineering
Proceedings Of The First International Conference On Computing In Civil Engineering
Comparison of Backcalculated and Laboratory Measured Moduli on AC and Granula…
This paper presents a comparison of pavement layer moduli determined from backcalculation with those measured in the laboratory on asphalt concrete (AC) and granular base materials. Deflection data and pavement materials obtained from two conventional flexible pavement structures were used. Pavement surface deflections were measured with a Falling Weight Deflectometer and were used in backcalcu…
