Fuzzy Probabilistic Analysis of Seismic Stability of Coastal Embankment   总被引：1，自引：0，他引：1  

He Guangne Yang Bin Wen Nai Professor  Dalian University of Technology  Dalian Engineer  Design  Research Institute of Shanghai Harbour Engineering  Shanghai . Lecturer  Dalian Fisheries College  Dalian 《中国海洋工程》1996,(1)

The stability of slope is affected by a number of factors, some of which have not only random property but also fuzzy characteristic. Therefore, the analysis of slope stability is really an uncertain problem. The customary safety factor does not in reality reflect stability scientifically, quantitatively and practically. In order to obtain more practical results, the slope stability is treated as a fuzzy random event for the evaluation of its fuzzy probability. Finally, the seismic stability of an existing coastal embankment is analyzed by means of the suggested fuzzy probabilistic method. It may be seen that the results of analysis can more fully represent the numerical assessment of the degree of slope seismic stability.  相似文献   

水生细菌数量与菌体大小测定技术的进展   总被引：2，自引：0，他引：2  

邱大俊  焦念志  钱鲁闽 《台湾海峡》2004,23(3):376-385

水生细菌的数量与菌体大小是海洋微生物研究的关键参数，随着技术的进步，测定这些参数的方法有了很大的发展．本文介绍了其测定技术的发展历程，并对已有的测定方法进行了介绍、归纳和评述，认为流式细胞仪测定法是测定细菌数量与菌体大小较为合适的方法。  相似文献   

Local Scour Around Piles Under Wave Action   总被引：1，自引：0，他引：1  

陈国平左其华  黄海龙 《中国海洋工程》2004,18(3):403-412

The model tests are performed with regular waves, and the effect of wave height, wave period, water depth, sediment size and pile diameter is evaluated. The shape and size of local scour around piles are studied. There are three typical scour patterns due to wave action. It is found that a relationship exists between the erosion depth and the wave number. An empirical formula of the maximum local scour is thus derived.  相似文献   

Experimental Study of Perforated Caisson Breakwater     

Wang Jianyi Senior Engineer  River  Harbour Department  Nanjing Hydraulic Research Institute  Nanjing 《中国海洋工程》1992,(1)

This paper describes the design of a perforated caisson breakwater and presents the results of model test. Tests with regular and irregular waves have demonstrated that the perforated caisson breakwater has the advantages of low reflection coefficient, good wave-absorbing performance, relatively small wave height in front of the breakwater, and small amount of overtopping. Analyses have been made of the coefficient of reflection, wave height in front of the breakwater, and wave overtopping. Relevant figures and tables are presented for reference.  相似文献   

Fatigue Behaviour of Tubular Joints Made of China-Made Platform Steel     

Wang Gnanghai  Chen Bozhen Senior Research Engineer  China Ship Scientific Research Center 《中国海洋工程》1992,(1)

In China, a nationwide research program on fatigue behaviour of tubular joints made of China-made platform steel was carried out from 1983 to 1990, which was set by the Tubular Joint Research Committee for Offshore Structures (TJCOS) of China. This paper gives an outline of the basic properties of the China-made platform steel and fatigue test of tubular joints, including test specimens, test particulars and test results. A p-S-N curve based on the test results was established which reveals that the fatigue strength of tubular joints is fairly good. The thickness effect and effect of corrosion on fatigue strength in sea water are briefly discussed.  相似文献   

REPORT ON THE EXCAVATION OF THE LOCALITY 13 IN CHOUKOUTIEN~1     

裴文中 《地质学报》1934,(0)

1. INTRODUCTION When inspecting the Choukoutien area in October 1933, under the direction of the late Dr. Davidson Black, the workmen brought to the attention of the members of the Cenozoic Laboratory a fossiliferous site which had  相似文献   

REPORT ON THE EXCAVATION OF THE LOCALITY 13 IN CHOUKOUTIEN~1     

裴文中 《地质学报》1934,13(1)

1. INTRODUCTION When inspecting the Choukoutien area in October 1933, under the direction of the late Dr. Davidson Black, the workmen brought to the attention of the members of the Cenozoic Laboratory a fossiliferous site which had  相似文献   

ON THE CENOZOIC DEPOSITS OF THE LOWER HUANGHO VALLEY~1     

卞美年 《地质学报》1934,(1)

INTRODUCTION The part of the Lower Huangho Valley with which this paper deals is bounded on the west by the T'ungkuan Bend where the Loho (洛河) and the Weiho (渭河) join their master stream and on the east by the Sanmen Rapids (三门急流). The area which lies between P'ingluhsien (平陆县).  相似文献   

ON SOME NEW FOSSIL MOLLUSKS OF MONGOLIA     

秉志 《地质学报》1931,(1)

  相似文献   

Notes on Continental Geology     

P.TEILHARD DE CHARDIN 《地质学报》1937,(Z1)

Over a continental area, the sediments are mostly found, either asoriginally spread by water along the slopes (gravels or loams: fan-deposits), or as accumulated by streams in the bottom of the basins(lake-deposits, or fluvial plains), either as disseminated by wind (sand-dunes and loess deposits).  相似文献