Model Tests on Reinforced Sloped Embankment with Denti-strip Inclusions under Monotonic Loading

다국어 초록 (Multilingual Abstract)

Denti-strip inclusion is a new type reinforcement that consists of conventional strip type reinforcement and vertical inclusionswhich are installed on the strip in spacing. A series of laboratory model tests were carried out on a physical model of reinforcedsloped embankment with strip inclusions and denti-strip inclusions under surcharge. Compared with strip reinforcement, it is foundthat due to the existence of vertical reinforcing elements which provided passive resistances against shearing and enhanced soilstrength, denti-strip inclusions are more effective in improving the ultimate surcharge, reducing the settlement and restricting thelateral displacement of the slope. Furthermore, the shear bands in the embankment reinforced with two-layer inclusions under thecondition without cutting of reinforcements are separated into several discontinuous arc bands by the inclusions unlike the singlecontinuous arc in unreinforced embankment; the inclination angles of the shear bands are greater than that of unreinforcedembankment and the position of the lower arc is close to the mid-height of embankment.

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