Anne geddes poster posters , showcards , card constructions and mobiles 海报,广告牌,卡纸构造,移动招牌
2.
Murry , e . j . , and geddes , j . d . , “ uplift of anchor plates in sand , ” journal of geotechnical engineering , asce , vol . 113 , pp . 202 - 215 , 1987 廖洪钧和许世宗,紧砂中压力式垂直扩座地锚锚碇端之受力行为,中国土木水利工程学刊,第六卷,第二期,第137 - 148页, 1994 。
3.
General energy technologies , a denver - based company represented on the china business mission by ceo ray geddes , created the technology used in chinese hybrid electric buses 公司开创了中国混合电动车使用的技术。公司首席执行长雷?格迪斯代表公司参加了拓展对华商务代表团。
4.
( 3 ) based on geddes " formula , the author develops a settlement calculating formula suitable for the single pile of cast - in - situ piles with expanded branches or plates . and its feasibility is verified through finite element method and a case history analysis ( 3 )在geddes公式的基础上,提出了适合挤扩支盘桩单桩沉降的计算公式,并用有限元法和工程实测值验证了该公式的可行性。
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The distribution of pile - top counter force and pile - end resistence influence the distribution of substratum ' s additional stress , and the latter farther influences the pile - top counter force inversely . contrasted to the result by geddes " formula , the same characters can be concluded 为简化计算,本文还将geddes公式应用于下卧层附加应力分析,其数值结果表明考虑筏板刚度的附加应力分布规律与有限元计算结果一致。
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Based on plate loading test in - situ , the method of geddes " formula , finite element method and the relative theory of method of code , the paper makes a thorough study on the bearing capacity and settlement of vertically loading cast - in - situ piles with expanded branches and plates , and the major results are as follows : ( 1 ) based on the results of plate loading test in - situ , the single pile settlement behavior is analyzed . it is pointed out that its load - settlement ( q - s ) curve as tardy deformation 本文结合现场静载荷试验、 geddes公式法、有限元法和《规范》法中的有关理论,对挤扩支盘桩在竖向荷载作用下的承载力及沉降进行了研究,主要表现在以下几方面: ( 1 )在现场静载荷试验结果的基础上,分析了挤扩支盘桩单桩沉降特征,指出其荷载沉降( q s )曲线为缓变形。
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In this paper , the design method of pile raft foundation in soft soil is studied , especially the method for analysis of pile raft foundation by using geddes " stress formula , some problems which exist in application are discussed and resolved . the paper also compares this method with traditional national code of pile foundation design ( ncpfd ) 本文对桩筏基础的工作性状进行了研究,着重分析了新规范中用geddes解分析桩筏基础内力和沉降的方法,探讨和解决了在实际应用过程中还存在的一些不完善的地方,并将它与传统的几种分析方法进行了比较。
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( 2 ) on the basis of geddes method , the distribution characteristic of friction surrounding pile of composite foundation is showed as small in top and bottom and big in middle according to measured results , the calculation formula of the top surface of stratum additional stress has been deduced by using mindlin and boussinesq solution , settlement calculation method is brought forth simultaneously ( 2 )在geddes法的基础上,根据实测复合地基桩侧摩阻力呈上下小中间大的分布特点,利用mindlin解和boussinesq解导出了作用于下卧土层顶面附加应力计算公式,并同时提出了长短桩复合地基沉降计算方法。
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The paper analyzes the vertical stresses in soil based on geddes " assumption and stress formula , because the equivalent deep foundation is not appropriate when the lengths of piles are different . but the stress of bottom of pile is not accurate , so this paper modifies the fomula by integrating the mindlin formula . considering the model of elastic analysis method is different from the practice , correction factors nu n are introduced to get more accurate stress in soil 对于这种方法在分析桩端应力时出现应力集中的现象,对mindlin解重新积分来修正附加应力系数公式,以避免这种现象;由于弹性半空间和实际情况之间的模型误差会带来附加应力差距,通过大量的计算分析提出了修正系数m 、 n ,并给出了m 、 n随桩径、计算点深度变化的函数关系,最终使得应力的计算结果与有限元的计算结果十分吻合,而计算相对比较简便。
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Meanwhile , the influence of overlapping area on the beam foundation is modified by means of load amendment , and the influence of overlapping area on the pile - beam foundation is modified by means of stiffness amendment . by applying the model of stress - spread in shear - displacement method to describe the stress spread between piles and the geddes hypothesis to determine the stress distribution of pile , a displacement coefficient is deduced to calculate the flexibility matrix and the coefficient for load distribution of pile . considering the stiffness of foundation beam , the equation of the interaction of pile - beam - soil is established and an analysis program is developed related to the interaction 本文通过采用剪切位移法中的应力扩散模型考虑桩与桩之间的应力传递作用;采用geddes假定确定桩身和桩端的应力分布,推导位移系数,并以此为基础求得柔度矩阵;桩身和桩端的应力分布大小由桩的荷载分配系数控制,通过迭代法可以求出桩的荷载分配系数;在考虑基础梁对桩?梁?地基土共同作用的刚度贡献基础上,提出了桩?梁?地基土共同作用方程,并通过本文作者开发的相应计算程序,经实例计算验证了本文方法的正确性。