Denise-Penelope N. Kontoni 1,* and Ahmed Abdelraheem Farghaly 2,* 1 Department of Civil Engineering, Technological Educational Institute of Western Greece, GR-26334 Patras, Greece 2 Department of Civil and Architectural Constructions, Faculty of Industrial Education, Sohag University Sohag 82524, Egypt * Correspondence: [email protected] (D.-P.N.K.); [email protected] (A.A.F.); Tel...

Three-dimensional model is established with finite difference method to simulate construction process based on design and construction plans of existing overpass pile foundation adjacent to certain large-section railway tunnel in Chengdu, China. Ground, isolation pile, main bridge pier and ramp pile near the tunnel are taken as research object, and surface settlement amount, displacement change...

Since, both the relative position of tunnels and the construction procedure affect the soil movement and internal forces in the lining, it is of major concern to study the influence of these factors on the tunnel design. Construction procedures of tunnels have considerable effects on the magnitude of surface movements and lining stresses. This paper describes numerical analysis of construction ...

Risk assessment procedures for underground projects form a key component of preconstruction efforts since resulting ground movements may cause damage to adjacent structures. Particularly for urban tunnelling works, surface settlements may impinge on a vast number of structures and can result in significant lawsuits if appropriate building protection measures are not implemented. Although the un...

In order to research the theory for variety of transverse forces adjacent shield tunnels caused by foundation pits excavation, effect mechanism pit excavation on tunnel was analyzed. The sidewall unloading model pit, considering deformation retaining structures, introduced calculate additional stress soil excavation. On this basis, confining pressure variation established, influence longitudina...

The artificial freezing method can effectively improve the stability of strata and provide favorable conditions for construction safety shield tunnel in water-rich strata. Based on frozen tunneling project a metro station, which is close to important buildings, reasonable parameters are proposed this paper. simulation model was established by using Plaxis 3D finite element software (Version 201...

This paper reviews the capabilities and application of the CONSTRUCTION PLANEX system. This knowledge-based expert system assists in the selection of construction technology, the definition of work tasks, the estimation of required resources and durations, the estimation of costs, and the preparation of a project schedule. The system has been applied in laboratory simulations in three ways: int...