Microstructural Research on Deformation& Metamorphism of Late Proterozoic Fold Belt, North Margin of North China Platform
华北陆台北缘晚元古代褶皱带变形&变质作用的显微构造研究
In the middle stage, withe the deepening of the sea water, horizontal bedding, deformation bedding and convolution bedding developed, suggesting a platform-marginal slope facies.
中期海水加深,发育了水平层理、变形层理及包卷层理等,近于台地边缘斜坡相。
On the basis of probabilistic evaluation theory of ultimate strength analysis, the sophisticated and systematic studies on reserve strength and safety margin of 3D large scaled jacket structure system, under the background of an in-serve off shore platform were made in this paper.
应用极限强度的概率分析理论,以国内某现役近海石油平台结构为工程背景,对三维大型导管架结构系统的贮备强度及安全裕度进行了系统研究。
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