Artificial nerve network forecasted yso in clay p - y curves is researched and 8 physical parameters are studied by using the principal component analysis method when the fracture load was not reached for a trial pile under lateral load , the ultimate load of the pile might be predicted to the field - surveyed load settlement data of existing trial pile and by h - s curve extension method and hyperbola method 在对粘性土p - y曲线计算参数y _ ( 50 )的研究中，对粘性土常规8个物理性质指标进行主成分分析，研究用人工神经网络分析预测粘土p - y曲线中的y _ ( 50 ) 。建立了神经网络计算模型，可用来计算预测粘性土p - y曲线中的y _ ( 50 ) 。
In this paper , depending on the enormous 356 pile testing date detailed with soil and pile parameters and p ~ s curves , covering xi ' an and adjacent areas , we analyzed the load transmission mechanism of pile in loess foundation , and proposed a kind of hyperbolic load transmission function between pile and it ' s neighboring soil . meanwhile , we created a mathematical model to predict p ~ s curve and bearing capacity of single pile . by analyzing the compacting effect caused by pile - sinking of pressed pile in loess and it ' s influence on bearing capacity and settlement , two parameters , kc and ke are introduced to modify the soil cohesive c and deformation modulus es 本文利用现己收集到的西安及其周边地区356根打入桩、静压桩、灌注桩的现场试桩资料(其中打入桩67根，静压桩121根，钻孔灌注桩168根，并有详细的地层勘探资料，桩深资料，荷载沉降?曲线)对西安黄土地基中的打入桩、静压桩、灌注桩的荷载传递机理进行了分析研究，认为用双曲线型的荷载传递函数模拟桩土之间的荷载传递函数是合适的，并用荷载传递分析的方法建立了计算p s曲线的数学模型及极限承载力的确定方法。
When the test is completed p - s curve can be drawn . from the p - s curve , we ca n ' t specify the bearing capacity easily . in order to specify the bearing capacity accuracy , artificial neural network method is used . the fitted p - s curve is approximately accordance with those analyzed by test 论文利用现在较为流行的非线性处理方法? ?人工神经网络方法来拟合p - s曲线，以沉降为标准给出了单桩极限承载力。结果表明，该方法具有良好的处理能力，能够精确的根据p - s曲线给出单桩极限承载力。
Through the research of the frontal two models , we present a new macroscopical testability model ( m model ) used in system test phase . by the intuitionistic conception , we define the testability metric with the ratio of ease faults to the total faults and predict the total faults in s curve . this paper also gives a limit model of test process , with which we can know how to calculate the reliability of software 在前面两个模型的基础上,本文提出了一个应用于系统测试阶段的可测试性模型? ?宏观可测试性模型,该模型使用可测试性的直观定义,把可测试度定义为软件测试过程中容易发现的错误数占错误总数的比例,并使用增长曲线模型对软件中存在的错误总数进行了预测。
Because the yili river belongs to plain broad and shallow moving river , the main channel changes greatly and swings to a large range , which leads to river crooked branching river type and s curved , many fork rivers , the river continent and the river beach in river center , alluvial shoal and beach . the width in some section of the river is up to about 3800m . in flood season it causes serious harm to farmland , factories , residents along two sides 由于伊犁河属于平原游荡性宽浅河流，主槽变化不定，摆动幅度极大，河道多呈弯曲分叉河型和s型弯道、多叉河、河心洲，河心滩和冲击浅滩及边滩，部分河段河床宽度达3800m ，洪水季节对河道两岸的田地，工厂，居民等造成极大的危害，素有“三十年河东，三十年河西”之称。
The east transect was classified thirty five vegetation types using ndvi data from 1995 - 1996 by gis technique . the paper concludes that the ndvi from meteorological satellite is sensitive indicator of vegetation growing condition , times series curves of ndvi can truly curve vegetation growing principle by drawing the seasonal change curve of ndvi data by three groups . the paper also concludes that the forest ' s ndvi curve is commonly single apex , while farmland ' s or shrub ' s curve is mostly double apex , the peak value of forest ' s ndvi is commonly higher than grassland , farmland and some other vegetation types 应用地理信息系统技术处理1995 - 1996年1kmndvi数据，将南方样带划分为35类，分三组绘制35类植被的ndvi季节变化曲线，得出气象卫星ndvi是反映植被生长状况的敏感指示器， ndvi时间序列曲线真实地刻画出植被的生长规律；经分析得知森林ndvi曲线一般为单峰曲线，而农田灌丛多为双峰曲线；森林ndvi峰值一般高于草原、农田等其它类型。
The collapsible loess is often met during the construction of the high - grade highway in the loess area , and the main failure is the uneven subsidence of the roadbed and the culvert , which affects the safe usage of the roadbed and the culvert , etc . directed against this , based on the chankou - lanzhou freeway construction , the paper analyzes the application of the composite ground formed by lime - soil pile under the bridge and designs the project , discusses the rules of the contact pressure , the stress ratio of the pile and the soil , compares the p - s curves of one pile , the composite ground formed by one pile and the composite ground formed by two piles based on the in - situ plate loading test , evaluates the bearing capacity of the composite ground of the project 黄土地区的高等级公路建设中经常遇到湿陷性黄土问题，其病害类型主要是地基土受水浸湿后引起路基、桥台、涵洞等的不均匀沉降，直接影响路基、构造物等的正常使用。针对此问题，本文依托甘肃谗口至兰州柳沟河高速公路建设工程，对桥基灰土桩复合地基应用的可行性进行了深入分析，根据具体工程进行了合理的设计与计算，并配合现场静载荷试验及压力盒实测数据，探讨了基底应力分布规律，桩土应力比，变形模量的变化关系，对比分析了单桩、单桩复合和双桩复合的p ? s关系，对桥基灰土桩复合地基承载力进行了整体评价。
Then , by using the great fem programme and the drucker - prager model , the thesis establishes the pile - soil model of super - long piles , analyzes the mechanism of bearing and deformation of super - long piles under vertical loading systemically , studies the characteristics of q - s curve , bottom resistance , pile shaft resistance and critical length of super - long piles in detail , acquires some practical guidance conclusion . secondly , with a practical engineering , the author expatiates the bearing characters of super - long piles farther . the thesis points that super - long piles are frictional piles under the condition of working loading 然后应用大型有限元程序，采用土的drucker - prazer模型，建立了超长桩分析计算的桩土模型，系统分析了超长桩在竖向荷载作用下的承载机理和变形特性，研究了超长桩的荷载?沉降特性，端阻、侧阻的发挥性状以及超长桩的有效桩长，得出了具有实际指导意义的结论。
At last , in order to explain the application of earned value method in actual project , this thesis brings forward an example of software exploitation , in this example , project s curve , cost and schedule windage table , performance exponential and so on are used to analyze the headway complexion of project , and some control methods are put forward 最后，为了说明挣值法在实际项目中的应用，本文列举了一个软件开发实例，实例运用项目s曲线、成本与进度偏差表、绩效指数等工具对项目进展情况进行了具体分析，并提出具体的控制措施。
