The Anti-seepage And Insulation Lining Structural Friction Performance Test Research

In practical engineering, the lining structure is a common structure form.Composite geomembrane and insulation board which have great influence on thestability of lining structure are widely used in the lining structure.But the research onfactors affecting the stability of lining structure is less. So far, the frictionperformance test on the interface between composite geomembrane and insulationboard is less. The friction performance resesch on the interface between nsulationboard and sand cushion layer is less. The friction performance resesch on theinterface between concrete and composite geomembrane is less. The frictionperformance resesch on the interface between geomembrane and geotextile isless.What is more,there is not specific test methods in geotechnical test standard.The types and characteristics of composite geomembrane and action have beenexpounded.Also combine with the design and construction characteristics of thelining structure.,the sliding factors of the lining structure has been analyzed.According to the physical structure of channel lining, all parts of the structure areanalyzed from bottom to top respectively on this basis.And the test provide the basisfor practical engineering design and construction..On the basis of the frictionperformance test, typical combination have been selected.Long-term test have beencarried on between the interface of nsulation board and composite geomembrane.Finally, combining with the south-north water diversion project the tesearch onstability against sliding has been conducted...