用测得的动弯沉反算出地基反应模量。
By measuring dynamic deflection of the slab, the foundation reaction modulus is got.
分析弯沉盆面积对旧路状况进行评价的实用性。
The practicability of estimate of existing cement concrete pavement based on deflection basin is analyzed.
弯沉与温度的关系实质上就是弯沉与沥青层模量的关系。
In fact the relationship between deflection and temperature is the relationship between deflection and asphalt concrete layer moduli.
同时从统计分析中可知，对数正态分布模型更适合于弯沉指标。
In the statistical analyses, the result shows that the lognormal distribution model is more suitable for the index of deflection.
结合工程实例，详细论述了土方路基回弹弯沉检测标准的确定方法。
Using an engineering example, this paper discusses the method of determining elastic deformation criterion for earth roadbed in detail.
半刚性基层材料的强度与模量随龄期增长，基层弯沉值也随着龄期变化。
The strength and modulus of semi-rigid base material increase with age, so the reflection of base varies with age too.
三种弯沉测试技术及测试原理、技术特点和适用条件；数据处理及其评定。
The Paper mainly introduces three deflection test principles, technical features, its applicable conditions, affecting elements, data arrangement, and its evaluation.
由测试结果发现这两种弯沉仪的实测弯沉值差别不大，具有良好的相关关系。
It was found that the deflection values measured respectively by FWD and BB were in good regressive relationship.
参照国内外有关资料，建立了以FWD弯沉为基础的力学经验罩面设计方法。
A new mechanistic-empirical based on FWD procedure is developed in this paper according to the information from the other country and our own.
本文结合工程实验，认为在市政道路工程土方路基上进行弯沉值测定是很必要的。
The article deals with the necessity of data of beam deflection measurement on earthwork subgrade of municipal road engineering through integrating with engineering experiment.
将这一技术应用于临长高速公路，对该试验路堤进行了沉降观测、弯沉试验测试。
This technology is applied to Linxiang-Changsha Expressway. Subsidence observation and deflection tests for the test embankment are performed.
由于沥青混凝土材料强度的温度依赖性，弯沉以至路面结构承载能力都随温度而变化。
Since asphaltic concrete materials are temperature dependent in nature, measured deflections and hence the structural capacity of pavement vary with temperature.
结果表明，当碎石基层厚度达到一定程度后，其横观各向同性特性对路表弯沉的影响将不明显。
The results show that the effect of cross-anisotropy to surface deflection is not obvious when the thickness of granular base is at some degree.
根据不同荷载与路面状况下弯沉的实测结果，计算并分析了按弯沉等效的轴载换算指数的变化规律。
The change rules of axle exchange index based on deflection equivalent are analyzed according to the survey results in the different loads and pavement conditions.
通过三维有限元分析，考察了刚性路面脱空的影响因素，重点考察脱空的几何尺寸对弯沉值的影响。
The influencing factors to suspending rigid plate are investigated by three-dimensional finite element analysis. The investigation places emphasis on the contribution of the dimension of suspending.
利用ABAQUS有限元程序，采用土基的非线性本构模型及其他结构层的动态参数来计算理论弯沉。
ABAQUS is used to calculate theoretical deflection with subgrade nonlinear constitutive model and dynamic parameters of the other layers.
在结构力学分析方面，以往的研究多是建立弹性或者弹塑性模型来研究格栅对沥青路面应力及弯沉的影响。
In the structural mechanical analysis, previous research is more to establish elastic or elastic-plastic model to study the grid reinforced effect on pavement stress and deflection.
编制了有限元分析程序，此程序可得到隧道路面板的荷载弯沉曲线，结合无破损弯沉检测法可判断隧道路面性能。
The load-flexure curve of the tunnel pavement can be obtained by FEA program, which can judge the tunnel pavement performance in corporation with nondestructive test method by deflector.
路面调查工作包括交通量调查，轴载调查，路面损坏的类型、数量与严重程度的记录，路面结构的弯沉以及路面取样。
Field investigation includes traffic volume, axle loads, types, amount, and severity of pavement distress, measurement of deflection of pavement highway structure, and pavement sampling.
文摘：在研究现有国内外技术成果的基础上，结合在道路量测上的实践，分析、总结了落锤式弯沉仪的7个应用领域。
Abstract: Based on research and application of FWD in roads, the author analyzes and presents seven practical techniques of FWD.
刚完工的半刚性基层材料不能达到设计龄期时的强度，以致于半刚性基层顶面施工弯沉检验值不能按设计龄期的强度计算。
Semi-rigid base can't reach the designed strength just after its finished, so the checking value of construction deflection can't be calculated by designed age strength.
结果表明，利用改进的公式推算的实际弯沉与实际测试结果是吻合的，并可将其用于计算不同轮胎状况下的轴载换算系数。
The results indicate that the calculational outcome is consistent with the actual data, so this method can be used to count the axle conversion coefficient of different tyre status.
但如果初始弯沉很小并在原路面结构层的设计范围内，最好不要压浆，因为压浆所造成的扰动可能会对板块的稳定性产生影响。
But if initial deflection is small and in the designed range of the pavement structures, it'd better not grout or the plate stability will be impacted by disturbance caused by grouting.
采用轴对称动力有限元结合系统识别反分析理论进行路面模量反算，考虑了落锤式弯沉仪（FWD）荷载作用下的路面反应动力效应。
This essay adopts limited units of axial symmetry and theory of system recognizing backcalculation, in which the dynamic effect of the road surface reaction to load of FWD is considered.
运用三维空间有限元方法，通过具体实例定量分析了重载车辆对沥青路面的路表弯沉、结构应力的影响，论证了重载车辆对沥青路面结构的破坏作用。
In this paper, the effect of heavy vehicles on asphalt pavements with respect to deflection and stress of pavement structures was analyzed quantitatively by examples.
为此，根据大量的试验检测结果建立了PFWD与承载板、CBR、弯沉和FWD检测值之间的相关关系，结果表明各检测值之间存在良好的双对数关系。
So the correlations of PFWD and bearing plate, CBR, deflection, FWD are established according to many testing results. The analyses indicate that the correlations are good in double logarithm.
为此，根据大量的试验检测结果建立了PFWD与承载板、CBR、弯沉和FWD检测值之间的相关关系，结果表明各检测值之间存在良好的双对数关系。
So the correlations of PFWD and bearing plate, CBR, deflection, FWD are established according to many testing results. The analyses indicate that the correlations are good in double logarithm.
应用推荐