人民长江
人民長江
인민장강
YANGTZE RIVER
2015年
16期
23-26
,共4页
拟凝聚力%稳定分析%袋装砂围堤%长江口
擬凝聚力%穩定分析%袋裝砂圍隄%長江口
의응취력%은정분석%대장사위제%장강구
quasi-cohesive force%stability analysis%bagged-sand dike%Yangtze River estuary
为使土工织物袋装砂围堤的稳定计算简单易行且更加符合实际，针对长江口袋装砂围堤工程，分析了袋装砂围堤土工织物的加筋机理，指出了常规袋装砂围堤稳定分析方法存在的缺陷，从理论上导出了袋装砂围堤拟凝聚力公式。算例表明，利用拟凝聚力进行围堤稳定分析，既充分考虑了土工织物加筋对围堤稳定的有利影响，又修正了极限平衡法不能直接考虑土工织物变形对稳定分析影响的缺陷。对软基袋装砂围堤工程的稳定分析具有一定的指导意义。
為使土工織物袋裝砂圍隄的穩定計算簡單易行且更加符閤實際，針對長江口袋裝砂圍隄工程，分析瞭袋裝砂圍隄土工織物的加觔機理，指齣瞭常規袋裝砂圍隄穩定分析方法存在的缺陷，從理論上導齣瞭袋裝砂圍隄擬凝聚力公式。算例錶明，利用擬凝聚力進行圍隄穩定分析，既充分攷慮瞭土工織物加觔對圍隄穩定的有利影響，又脩正瞭極限平衡法不能直接攷慮土工織物變形對穩定分析影響的缺陷。對軟基袋裝砂圍隄工程的穩定分析具有一定的指導意義。
위사토공직물대장사위제적은정계산간단역행차경가부합실제，침대장강구대장사위제공정，분석료대장사위제토공직물적가근궤리，지출료상규대장사위제은정분석방법존재적결함，종이론상도출료대장사위제의응취력공식。산례표명，이용의응취력진행위제은정분석，기충분고필료토공직물가근대위제은정적유리영향，우수정료겁한평형법불능직접고필토공직물변형대은정분석영향적결함。대연기대장사위제공정적은정분석구유일정적지도의의。
To obtain more convenient and practical stability analysis method for geotextile bagged-sand dike, we analyze the reinforcement mechanism of geotextile bagged-sand dike according to several dike projects in Yangtze River estuary, and the disadvantages of conventional stability analysis method for bagged-sand dike are pointed out, and the formula of quasi-cohesive force of bagged-sand dike is deduced theoretically. The examples show that the stability analysis of bagged-sand dike using quasi-cohesive force takes account the beneficial effects of reinforcement of geotextile and the defects that the limit equilibrium method could not consider influence from geotextile deformation on stability analysis. The presented method has valuable mean-ings to stability analysis of bagged-sand dike on soft foundation.
