A Study on Seepage Failure and Grouting Prevention in Geotechnical Engineering
When groundwater undergoes confined flow within fractured rock masses or sandy-gravel soils,the rock blocks or soil particles experience buoyancy and seepage forces generated by the groundwater.This results in alterations to the strength and stress state of the rock or soil media.The change of mechanical properties of rock and soil media will react on the water body in the seepage field,changing its seepage direction and velocity.The complex coupling effect of seepage field and stress field exists in the geotechnical structure,and seepage failure will occur to the geotechnical structure or foundation under the action of strong seepage field.The technical measure often taken for seepage prevention is grouting,which can significantly improve the soil quality and improve the overall mechani-cal performance of rock and soil media.On the basis of deep analysis of seepage failure mechanism such as flow soil and piping,this paper systematically explains the theory of seepage,compaction and splitting grouting,composite and ultra-fine cement,geopolymer,polymer and microbial bacterial liquid grouting materials,aiming to contribute to improving the refinement level of geotechnical project construction and promoting its high-quality development.
geotechnical engineeringseepage failuremechanism analysisgrouting technologyprevention and control research
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维普
