1) accumulative settlement
累积沉降变形
1.
This research analyzed the subgrade work area depth and accumulative settlement at different load axle in the present subgrade compaction standards and traditional p
基于该方法,分析了不同交通轴载时的路基工作区深度和累积沉降变形规律,结果表明,在重载交通条件下,路基和地基未经过特殊处治时,路基的工作区深度达4m以上,同时,路基累积沉降变形达30cm以上。
2) cumulative settlement
累积沉降
1.
5%,25% and 50%,the cumulative settlements of the model piles are studied in saturated sand,and it is investigated that how the dynamic displacements change with cyclic numbers.
5%,25%,50%三种情况下的沉降试验,研究了模型桩在不同动力循环加载情况下的桩顶累积沉降和动位移幅值随振动次数的变化而改变的规律,拟合了沉降试验曲线的回归方程。
2.
Based on the undrained cumulative deformation model and the cumulative pore pressure model of the soft clay presented by Huang and employing the static and dynamic finite difference method,the cumulative settlement of Shanghai soft clay subgrade was computed and analyzed.
基于黄茂松提出的上海软粘土不排水累积变形模型和累积孔压模型,借助静态和动态有限差分法,对上海软粘土地基的累积沉降进行了计算分析。
3) accumulative deformation
累积变形
1.
Research on accumulative deformation behavior of soft clay under cyclic loads;
循环荷载作用下软粘土的累积变形特性的研究
2.
Compared with other kinds of sensors,module matching FBG has a better test effect,and this kind of FBG is able to reflect the accumulative deformation of asphalt mixture to some extent.
结果表明,采用应变修正后的光纤光栅应变传感器进行路面结构内部应变实测是可行的;模量匹配光纤光栅应变传感器与其它类型传感器相比具有较好的测试效果,同时该类型传感器在一定程度上能够反映出沥青混合料的累积变形。
4) accumulated deformation
累积变形
1.
An advanced model of ballast accumulated deformation and the effect of load order on accumulated deformation;
道床累积变形模型的改进及荷载作用顺序对累积变形的影响
2.
Based on laboratory test, test device is developed to test accumulated deformation of the functional layer mixture.
依托室内试验,自行开发试验装置测试功能层混合料累积变形,优选常用混合料AC-16、AC-13、AC-10进行试验,分析混合料累积变形影响因素以及增长规律,对试验前后试件进行体积变形分析,得出层间功能层产生累积变形更重要的原因是剪切推挤,而不是压密的结论。
5) cumulative deformation
累积变形
1.
Equivalent viscoplastic model for cumulative deformation of sandy silt under long-term cyclic loading
循环荷载作用下粉细砂累积变形的等效黏塑性本构模型
2.
Test result shows that(1)the increment rate of plastic strain is lager with the higher dynamic stress level,the smaller density and the lower confining pressure;(2) the increment ratio of plastic strain reduces gradually with the increment of load cycles;(3)the relationship between cumulative deformation and load cycles accords with power law.
同时,粉砂土累积变形符合幂函数变化规律,在已有经验公式的基础上进行了改进,提出了粉砂土路基不均匀变形的预测公式及相应计算方法,可较好的反映上述4种因素的影响。
3.
Test result shows that the cumulative deformation of compacted silt is closely related with its dynamic stress and water content.
试验结果表明:循环荷载下压实粉土的累积变形与动应力、含水率的高低均有关,动应力越大,累积变形随含水率增加而增长较快;压实粉土的回弹模量随动应力增加而缓慢降低,随含水率增加线性减小;压实粉土的临界动应力随含水率增加线性降低。
6) settlement deformation
沉降变形
1.
This paper uses a dedicated finite element software PLAXIS for geo-engineering,to further explore the rules of embankment settlement deformation under different heights,and discusses relationship between embankment height and road bed settlement deformation.
采用岩土工程专用有限元软件PLAXIS,对不同高度条件下的路堤沉降变形规律进行深入研究,探讨路堤高度与路基沉降变形的关系。
2.
According to the field test data of the bridge-subgrade transition section in permafrost regions during 3 years after the construction,the ground temperature variation inside different locations of subgrade and the settlement deformation rules of subgrade basement and subgrade in different locations of the cross and the longitudinal section were analyzed.
根据多年冻土区路桥过渡段路基在竣工后3 a内的现场试验数据,分析了路基不同位置的地温变化、路基基底沉降变形和路基不同位置沿横向及纵向的沉降变形规律。
3.
Combined with practical engineering of Wenwu Road station,the author analyzes the causes of surrounding buildings settlement deformation in the process of subway construction,and proposes measures to control settlement and incline of the buildings,in order to ensure security of the buildings,which to offer some guidance for similar engineering constructions.
结合文武路车站实例,分析了在城市修建地铁过程中造成周边建筑物沉降变形的原因,提出了控制建筑物沉降与倾斜的措施,从而确保了建筑物的安全,对类似工程的修建具有一定的指导意义。
补充资料：变形累积效应
变形累积效应
effect of strain accumulated
度地提高变形抗力模型精度，满足制定轧制规程的需要。 中国对变形累积效应的研究始于20世纪80年代，由冶金部钢铁研究总院进行研究。这一现象的研究对人们理解和认识变形抗力与金属显微组织的内在联系，建立高精度的轧制压力计算数学模型，实现轧钢过程计算机控制提供了有力的支持。b ianxing Ieiji xiaoling变形累积效应(effeet of strain aeeumulat-ed)热塑性变形过程中，下一道次的变形抗力因上道次加工硬化的积累而增大的现象。钢在连续、多道次变形过程中，随着变形温度的降低和变形节奏的加快，前一道次变形后的奥氏体在道次间隔时间之内没有来得及发生或只部分发生再结晶软化，奥氏体以加工硬化或部分加工硬化状态进入下一个道次的变形过程，造成了后续道次的实测变形抗力将比按照传统的。一f(T，。，幻变形抗力模型的计算数值明显增大。 变形累积效应的发现与研究是随着微合金钢的控制轧制工艺研究，逐渐被人们重视与认识的在变形与变形抗力之间的一种新规律。随着变形温度降低、变形程度增大、变形速度增高和道次间隔时间缩短，变形累积效应越发变得显著。其中变形温度影响最大，道次间隔时间影响次之，变形程度影响再次，变形速度影响最小。例如在宽带钢热连轧机上采用控制轧制工艺生产含有Nb、V、Ti一类的微合金钢时，在其精轧机组的后部几个道次中就明显地存在着变形累积效应，使其实测道次变形抗力比传统变形抗力模型计算的数值高出近20%，严重地影响了带钢的尺寸精度，增加了制定轧制规程的难度。 变形累积效应的大小用残余应变系数又来表征: 入~且/(ai一1+风一，)式中凡为第i道次的残余应变系数，久一1为第i一1道次的轧制表道次压下量，召，与召一1分别为第i道次前和第i一1道次前全部道次累积的残余变形量。将传统变形抗力模型中的变形程度项，用该轧制道次的变形程度值与前面各道次所累积下来的残余变形程度值之和，作为有效变形程度的计算值代入计算，就可以大幅
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