Compaction grouting has been successfully applied in shield tunneling works to mitigate the
surface settlements. At present, grouting injection is usually undertaken with cautious …

Excavation of a large underground cavern often induces the unstable behavior of the
surrounding rock due to intensive stress redistribution; thus, reasonable supporting …

Transportation tunnels are strategic parts of all urban development projects. Challenges are
faced while selecting the excavation techniques and support types in these underground …

Due to the complexities of design and technical issues of construction, tunnels are
considered to be enormous financial investments. Therefore, rehabilitation with the purpose …

Tunnel lining stiffness, grout strength and shield-driven speed are important parameters that
influence ground surface settlement during tunnel excavation. Optimising these parameters …

Compaction grouting is widely accepted to mitigate the surface settlements during tunnel
excavation. Currently, compaction grouting relies heavily upon field observations due to the …

Contexto: Los micropilotes son utilizados como elementos de refuerzo del suelo o de
recalce, dicha función es comprobada y analizada por diferentes autores. En Colombia el …

The ground deformation is difficult to control in the construction of tunnels with small-spacing
and large-section. Taking a crossover track tunnel in Bei**g Metro line 12 as a case, a …

This paper discussed the effect of different buried depth (B) of the twin-tunnels using scale
experimental model and discrete element method (DEM). The diameter (D) of the twin …

Subway metro systems are one of the most efficient modes of mass transportation,
especially in heavily populated areas. A series of 3D Finite Element Analysis (FEA) has …