排序方式: 共有4条查询结果,搜索用时 0 毫秒
1
1.
The large cylinder is a new-type structure that has been applied to harbor and offshore engineering. An analytic method of the relationship between loads and the structure displacement is developed based on the failure mode of deep embedded large cylinder structures. It can be used to calculate directly the soil resistance and the ultirnate bearing capacity of the structure under usage. A new criterion of the large cylinder structure, which discriminates the deep embedded cylinder from the shallow embedded cylinder, is defined. Model tests prove that the proposed method is feasible for the analysis of deep embedded large cylinder structures. 相似文献
2.
3.
中国最大的内陆咸水湖———青海湖日渐“消瘦”,记者日前从青海省气象科学研究所了解到,近25年来,青海湖湖面已萎缩近150平方公里。经卫星遥感测量,青海湖西岸和北岸陆地相对推进距离分别达到1566.3米和3266.9米,年平均推进距离分别为62.6米和130.6米。青海省气象科学研究所专家表示,青海湖在1975年~2000年的25年间,湖岸总体变化趋势是陆地相对向湖水方向推进,湖岸形体整体萎缩。除此之外,水位下降、沙化、旱化、草原退化等已使青海湖百“病”缠身。如不采取有效的保护措施,长此下去,青海湖不是变成沙湖就会变成死湖。美丽的青海湖百“病… 相似文献
4.
1