摘要
It is often necessary to implement geosynthetics to reduce risk of sinkhole for road engineering in Karst terrain, while the theory for design and analysis is far behind the engineering practice, so it is of great important to study it. On the basis of the study, the curve-cross method was proposed to solve the problem, which was applied to analyze results of pull-out test and full-scale test, and the calculated value agrees well with the measured. The method proposed is of clearly physical meaning and simple to apply to engineering practice.