Numerical modelling and its physical modelling support in Civil Engineering

Module 12: Numerical Modelling in Rock Engineering

numerical modelling of tunnelling induced ground deformation and its control

tunnelling through cities underlain by soft soil, commonly associated with soil movement around the tunnels and subsequent surface settlement. the predication of ground movement during the tunnelling and optimum support pressure could be based on analytical, empirical or the numerical methods. the commonly used earth pressure balance (epb) tunneling machines, uses the excavated soil in a pressu...

Modelling Civil Society's Transformational Dynamism And Its Potential Effects

The paper proposes three ‘non-conventional’ patterns to model using System Dynamics: (i) transformational dynamism of civil society organizations; (ii) regulations effectively limiting disruptive effects of platform firms; (iii) policies facilitating new patterns of value creation through genuine sharing. The combination of SD and Agent Base Modelling may improve the effectiveness of analysing ...

Negative surge in open channel: physical, numerical and analytical modelling

Negative surges are caused by a sudden change in flow resulting from a decrease in water depth. New experiments were conducted in a horizontal channel (L = 12 m, W = 0.5 m) to record the unsteady water depth and turbulence in negative surges. The data were collected using video imagery, acoustic displacement meters and acoustic Doppler velocimetry (ADV). The experimental setup was designed to r...

Numerical Modelling of Backfill Grouting Approaches in EPB Tunneling

One of the main issues involved during tunnel construction with tunnel boring machines is the tail gap grouting. This gap is between the external diameter of tunnel lining and the excavation boundary that is filled with high-pressure grouting materials. In this work, three different approaches of gap grouting modeling in the FLAC3D software are investigated with a special attention to the...