A new type of grouting material—FCM (fast cementing material)—is being used in coastal and offshore infrastructure projects, such as harbor tunnel rehabilitation. In order to investigate how this material performs under different conditions, the compressive strength, failure mode, surface microscopic changes fracture penetration degrees crack angles grout-reinforced specimens formed by FCM sand...

Abstract Background In recent years, the technology of blocking and grouting has been widely used in treatment groundwater inrush tunnels China’s mines. Studies have carried out on aggregates pouring under hydrodynamic conditions; however, there is lack studies grout propagation aggregate mass, which formed earlier stage. This paper presents an experimental investigation poured with flowing wat...

Abstract The utilization of tail void grout as a stabilizing and sealing agent in mechanized tunneling procedures is paramount significance, given the geological engineering conditions inherent to projects. Prior its application within tunnel, detailed evaluation fresh-state characteristics grout, well time-dependent evolution hydro-mechanical properties, becomes imperative. This review paper a...

a new chemical grouting method has been developed for conglomerate formations based on the experimental studies. due to the lack of chemical grouting experience of conglomerate formations, the testing programs were performed to evaluate the performance of chemical grouting in the water sealing of part of conglomerate foundation of karkheh earth dam using a combination of field and laboratory te...

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...

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...