CAJ | 학술논문

生态格网是新型的堤岸防护材料，在堤岸结构设计中需关注生态网格的抗冲刷临界流速等关键参数。为掌握生态格网的抗冲刷性能及失稳模式，根据弗劳德准则设计的物理试验模型，针对坐落在光滑底面和碎石基床上不同体型尺寸的生态格网，测试其抗冲刷临界流速，并与按Izbash公式计算的临界流速结果进行对比分析，研究结果表明抗冲刷临界流速的主要影响因素包括院网格的体型、尺寸和质量，网格填石的孔隙率和粒径，以及网格与底床的摩擦系数等。
생태격망시신형적제안방호재료，재제안결구설계중수관주생태망격적항충쇄림계류속등관건삼수。위장악생태격망적항충쇄성능급실은모식，근거불로덕준칙설계적물리시험모형，침대좌락재광활저면화쇄석기상상불동체형척촌적생태격망，측시기항충쇄림계류속，병여안Izbash공식계산적림계류속결과진행대비분석，연구결과표명항충쇄림계류속적주요영향인소포괄원망격적체형、척촌화질량，망격전석적공극솔화립경，이급망격여저상적마찰계수등。
Ecological grid is a new embankment protective material, some key parameters of ecological grid such as scour-resisting critical velocity should be considered in the design of embankment structure. In order to grasp the scour-resisting property and destabilization mode of the ecological grid, a physical test model that is based on Froude criterion is applied to measure the scour-resisting critical velocity of the ecological grids in different sizes,which are laid on smooth bottom or crushed stone bedding. The above critical velocity is compared with the calculated result by Izbash formula and analyzed. The research results show that the influencing factors of the scour-resisting critical velocity are the body type, size and quality of the grid, void ratio and particle size of filled rock,and the friction coefficient between grid and bottom.