Modulus of resilience for embankments with low liquid limit silty soil in Urumqi Area 乌鲁木齐地区低液限粉性土路基回弹模量的确定
ELASTICITY SOLUTION OF SIMPLE-SUPPORTED COMPOSITE BEAMS WITH DELAMINATIONS Analysis of Compression Modulus of Resilience of Slab-Type Rubber Seat of Bridge 桥梁板式橡胶支座抗压弹性模量分析
The relationship between the modulus of resilience and the deflection value in road design 公路工程设计参数回弹模量和弯沉值的关系
Based on the layer plate theory and mean rigidity, a formula is derived for the modulus of resilience in 3 dimensional textured composite material mode by the two step method with the help of a geometrical model of texture. 利用织物几何模型,在层板理论和平均刚度概念的基础之上,推导了两步法三维编织复合材料弹性模量的计算公式。
By Deflection Value of Resilience Determining Modulus of Resilience of Earth Subgrade 利用回弹弯沉值确定土基回弹模量
Through measuring deflection of resilience on shaped subgrade top, the modulus of resilience of earth subgrade was determined. 按照弹性半空间体垂直位移理论解,通过对成型路基顶面回弹弯沉的测定,确定了土基回弹模量,并与野外承载板测定结果及查表法所确定的回弹模量值相对比。
The distinction of the modulus of resilience was analyzed, and the influence of the intrinsic factors including moisture content, dry density, mudstone content and the external factors including compaction mode, paving thickness were adequately discussed. 通过路基回弹模量特征的研究,充分阐述了含水量、干密度、泥岩含量等内因,及压实方式、松铺厚度等外因对路基模量值的影响;
Put forward the highway design parameter of Xinjiang: the modulus of resilience of roadbed soid-Eo and California bearing ratio-CBR, based on the third rank division; improvement workmanship of four road-mix methods and plant-mix workmanship and flow process of the expansive soil; 提出了建立在新疆公路三级自然区划基础上的新疆公路设计参数:土基回弹模量Eo和加州承载比CBR,并对其进行了相关性分析,建立了Eo和CBR值数据库;
Field Test Research on Modulus of Resilience for Impacted and Compacted Existing Cement Concrete Slab as Bed Course 冲击压实后旧水泥混凝土路面作为垫层及其回弹模量的试验研究
For compacted stabilized expansive soils, this research has performed laboratory tests to investigate the influence of initial state parameters ( water content and dry density) and different testing conditions on swell percent, swelling pressure, CBR value and modulus of resilience. 应用胀缩试验,承载比试验及回弹模量试验研究了改良膨胀土的初始状态(即干密度,含水量),及不同试验条件下对膨胀率,膨胀压力,承载比和回弹模量的影响。
In the highway blacktop design criterion ( TJT014-97), four methods are recommended to the value of the modulus of resilience of the roadbed. However, the limitation of the methods induce disconnection between the designing modulus index and the compaction in the process of field construction. 尽管现行《公路沥青路面设计规范》(TJT014-97)中,推荐了4种不同方法确定路基回弹模量值,但是由于这些方法的局限性,导致路基设计回弹模量取值与现场施工压实过程脱节。
The research results reveal that the residual soil of granite presents contraction under shear and its bulk modulus of resilience increases significantly with deviator stress rising. 发现花岗岩残积土具有剪缩特性,回弹体积模量随偏应力增大而显著提高;
The road performance test include: compression strength, cleavage strength, rupture strength, modulus of compression strength resilience, shrinkage, fatigue test and washout test. 路用性能的试验内容包括:抗压强度、劈裂强度、抗弯拉强度、抗压回弹模量、温缩干缩、抗冲刷试验、冻融试验和疲劳性能试验。
Modulus of resilience which represents stress-strain properties of the roadbed and material strength of the roadbed is a very major parameter in road surface designing. 回弹模量充分反映路基应力应变特性及路基力学强度和变形性,是路面设计中的一个关键参数。
It was verified that cement stabilized large crushed stone has higher compression strength and modulus of resilience, so its load carried capability is better than normal cement stabilized crushed stone. 试验结果表明大粒径水泥稳定碎石骨料间的嵌挤作用明显,抗压强度和抗压回弹模量明显大于常规级配,有良好的承载能力;
This formula concerned the upper loading and a series of model parameters, such as the effective angle of internal friction, the effective cohesive intercept, the coefficient of earth pressure at rest K_0, the modulus of compressibility, the modulus of resilience and so on. 它不但与上覆荷重和有效内摩擦角有关,而且与有效内凝聚力、静止土压力系数、土的压缩模量和回弹模量等一系列本构模型参数有关。
The Research for Indoor Analog Modulus of Resilience Method Determining Soil Base Modulus of Resilience 室内模拟回弹模量法确定土基回弹模量的研究
So the suitable modulus of resilience of ground, the design parameters of surface and base course should be provided according to the different areas. 为此,提出应针对不同地区,确定适当的公路土基回弹模量、基层与面层设计参数。
Study on the Modulus of Resilience and Field California Bearing Ratio of Roadbed Soil 路基土回弹模量E0和野外承载比CBR研究
The author, by means of experiments and analyses, has studied the shear strength, earth pressure at rest and modulus of resilience, etc of soil in the unloading state and also the value of engineering application of such soil. 基于此,作者通过试验分析手段研究了卸载土体的抗剪强度、静止土压力系数、回弹模量等问题,并分别探讨了其工程应用价值。
The dynamic strength and modulus of resilience of weathered granite cement stabilization have a prominent increase than weathered granite soil, weathered granite cement stabilization satisfy the condition of subgrade soil to expressway. 证明风化花岗岩经水泥改良后,动强度、动模量显著提高,可以满足高速公路的路基土的填筑要求。
On the basis of the modulus of resilience tested on site, the mechanical performance of highways subgrade was investigated in a systematical way by the Rayleigh Wave test, bending test, field CBR and loading plate test. 根据路基现场回弹模量实测资料,采用瑞利波测试、弯沉测试、现场CBR与载荷板试验,系统研究了路基的力学特性。
The experiments of modulus of resilience, compression and collapsibility deformation, permeability under each water content and compactness are done. The rules of the relations of these parameters and water content and compactness are gotten. 系统地进行了每一准确含水量、压实度下的回弹模量、压缩湿陷变形和渗透试验,得出各参数与含水量、压实度的关系的一般规律。
Combine three places to test section, carry on degree of compaction measuring of roadbed, settlement observe of subgrade and superface of roadbed, modulus of resilience of roadbed superface, analysed the rationality of various kinds of treatment methods of unfavorable geology and suitable condition. 结合三处试验段,进行了路基分层压实度检测、地基沉降观测、路基顶面沉降观测、路基顶面弯沉及回弹模量检测等试验,分析了各种不良地基处理方法的合理性及其适用条件。
This dissertation, through experiment on modulus of resilience and collapsibility, analyses the effect of dry density, moisture and thixotropy on the deformation characteristic of loess; 通过对室内击实制备的不同状态的黄土样进行回弹模量、湿陷等试验,分析了干密度、含水量、触变龄期等对黄土变形特性的影响;
It researched the influence factors to the subgrade modulus of resilience, such as soil, compactness and moisture content, and found that the moisture content was the key factor which made the modulus of resilience changed by seasons. 研究了路基强度的影响因素,如土质、压实度和含水量对路基回弹模量的影响,发现含水量是影响路基回弹模随季节变化的主要因素。
According to the type of asphalt mixture with more big aggregate, big nominal size, higher compression rebound modulus, to analysis effect of asphalt overlay in different analysis of compressive modulus of resilience^ degree of concrete pavement plate bottom to prevent reflection crack and temperature load. 根据该类型沥青混合料具有粗骨料多、公称粒径大,抗压回弹模量高等特点,分析加铺层结构层在不同抗压回弹模量、板底脱空程度和温度荷载对防止反射裂缝开展产生的影响。
Furthermore, the paper researched the seasonal change law of the subgrade moisture content and the subgrade modulus of resilience through tracking observation with the moisture sensors while subgrade is under working condition. 进一步,通过湿度传感器跟踪观测工作状态下路基含水量,研究了路基含水量及路基回弹模量随季节的变化规律。