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unconfined compression是什么意思,unconfined compression的意思翻译、用法、同义词、例句

输入单词

常用词典

  • 无侧限抗压强度;无侧限压缩

  • 例句

  • The unconfined compression strength of the undisturbed and remolded specimens are stu***d in the conditions of the dehydration or adding moisture content.

    针对原状土样和重塑土样在脱湿或加湿过程中无侧限抗压强度的变化进行了研究。

  • This paper introduces the results of unconfined compression test, direct shear test and unconsolidated undrained triaxial test for saturated clay at a site in shanghai.

    本文介绍了上海菜工程地基饱和粘土的无侧限试验、直剪试验及三轴不固结不排水试验的结果。

  • Unconfined compression strength and compactness are important indexes that examines the engineering Quantity of dike road. The experimental precision is high, the computing technology is complicated.

    无侧限抗压强度与压实度是检验堤防道路工程质量的重要指标,试验精度高,计算方法复杂。

  • This model contains 9 parameters which can be easily determined by conventional both confined and unconfined compression test.

    模型的计算参数共有9个,可以方便地通过原状土的有侧限和无侧限压缩试验测定。

  • The unconfined compression strength tests were performed on the cemented soil samples, and at the same time their electrical resistivities were measured.

    通过对水泥土进行无侧限强度试验,并同步测量其电阻率,分析了水泥土在受压变形过程中电阻率变化规律。

  • Through the unconfined compression test and triaxial rigidity test without drain, the authors stu***d the properties and influence of different formula for the clay-cement grout.

    通过对不同配比的粘土-水泥浆液结石体的室内无侧限抗压强度试验以及三轴固结不排水试验,揭示了各因素对粘土-水泥浆液结石体性质的影响。

  • The electrical resistivity of cemented soil increased with the increment of age and unconfined compression strength, whereas decreased with the increment of strain.

    研究表明,水泥土电阻率随龄期和无侧限抗压强度的增大而增大,随着应变的增加而逐渐降低;

  • The results suggest that nanometer silica fume can greatly improve the unconfined compression strength of cemented soil at various curing periods.

    试验表明,一定掺量下的纳米硅粉能够显著提高水泥土的各个龄期强度。

  • Unconfined compression tests are conducted on expansive soil under different drying and wetting cycles.

    选择长期浸泡法、干湿循环法和交流电阻法作为本论文的试验方法。

  • Research shows that the cement soil with higher unconfined compression strength, higher cement content, longer time and lower water content, has higher electrical resistivity.

    水泥土电阻率与含水量负相关,即随着含水量增大而降低;

  • Through the regression analysis of the experimental data of different cement proportion, we get a regression formula of unconfined compression strength of vegetation concrete.

    通过对不同水泥掺入比的试验数据的回归分析,得出了植被混凝土无侧限抗压强度的回归公式。

  • Based on discussion of its mechanism, the unconfined compression strength test is discussed and compared with ordinary cement-stabilized soil.

    从水泥土固化机理出发,讨论并对比了掺加工业废料加固土与普通水泥土的无侧限抗压强度试验。

  • The tests include compaction test, unconfined compression test, dynamic strength and dynamic strain test and so on.

    包括击实试验、无侧限强度试验、动应变和动强度试验等。

  • In order to study the fiber, fiber cement on the strength of Yunnan red clay, red clay of the improved direct shear tests carried out and the unconfined compression test.

    为了研究纤维、纤维水泥对云南红粘土强度的影响,对改良后的红粘土进行了直剪试验和无侧限抗压试验。

  • Based on the previous research, in this paper the mechanical characteristics of undisturbed and remoulded sample was presented by unconfined compression and consolidation test results.

    在前期研究工作的基础上通过无侧限抗压试验和大量的室内固结试验,得到了原状土和重塑土的力学性质变化规律;

  • The shearing properties of asphalt mixture in wearing layer of a testing section of Gangzhou-Wuzhou Expressway are evaluated by the single penetration test and unconfined compression test.

    为了评价不同级配类型沥青混合料的抗剪性能,采用单轴贯入法对混合料进行抗剪试验。

  • In this paper, according to the require of deep mining, the unconfined uniaxial compression strength test of backfill at a different ratio, different density and different curing age has been done.

    根据矿山深井开采的需要,对不同灰砂配比、重量浓度和养护时间的高浓度水泥尾砂充填体试块在建材压力机上进行了无侧限单轴压缩强度测试。

  • It is suggested to define the strain at convergence point as the ultimate strain in compression for laterally unconfined concrete.

    建议把“收敛点”的应变定义为无横向约束混凝土的极限压应变。

  • The influences of the maintained time and the freeze-thaw cycling on the unconfined compression strength of lime soil are discussed.

    同时,试验分析了养护石灰土的工程特性,特别是探讨了养护龄期及冻融循环对石灰土无侧限抗压强度的影响。

  • The unconfined compression strength of thawing clay significantly decreases, reaching 1/3~1/2 of the original. To apply the frozen method to municipal rock engineering has bright foreground.

    粘土冻融后无侧限抗压强度是原状土的1/ 3~ 1/ 2 ,灵敏度降低,其结果对冻结法向市政岩土工程的应用推广具有重要意义。

  • With the linear regression analysis, the relationship between unconfined compression strengths and blow counts of SPT is obtained.

    用线性回归分析的方法,得到无侧限抗压强度值与标贯击数的关系;

  • Along with the increase of the density, the unconfined compression strength increases straightly.

    随着密度的增大,固化土的强度呈直线上升;

  • 同义词

  • |unconfined compressive strength;无侧限抗压强度;无侧限压缩

  • 专业解析

    unconfined compression(无侧限压缩试验)是岩土工程中用于测定饱和粘性土抗剪强度的一种基本试验方法,尤其用于快速测定其不排水抗剪强度(Undrained Shear Strength, Su)。以下是详细解释:

    1. 定义与原理: 试验时,将圆柱形土样置于试验机上,仅对其轴向施加压力,而不施加任何围压(即无侧向约束,故称“无侧限”)。土样在轴向压力作用下发生压缩直至破坏。该试验基于饱和粘性土在快速加载(不排水条件)下,其破坏时的抗剪强度仅取决于土的内聚力(c),而内摩擦角(φ)近似为零的理论前提。

    2. 试验设备与过程:

      • 使用无侧限压缩仪(通常为应变控制式)。
      • 将制备好的土样(直径约35-40mm,高度约为直径的2倍)垂直放置在仪器底座上。
      • 以恒定速率(如每分钟应变1%-2%)施加轴向荷载。
      • 连续记录轴向荷载与试样的轴向变形(或应变),直至试样出现明显的破坏面或达到规定的应变值(如15%或20%)。
    3. 结果与应用:

      • 不排水抗剪强度(Su):试样破坏时的最大轴向应力(即无侧限抗压强度,Qu)的一半即为土的不排水抗剪强度:$Su = frac{Qu}{2}$。这是该试验最重要的成果。
      • 灵敏度(St):通过对比原状土样和重塑土样的无侧限抗压强度,可以计算土的灵敏度(St = Qu(原状) / Qu(重塑)),反映土结构受扰动后强度损失的程度。
      • 工程应用:Su是分析饱和粘土地基的短期稳定性(如边坡稳定、挡土墙土压力、地基承载力)的关键参数。例如,在估算粘土边坡的临界高度或浅基础的极限承载力时,Su是核心输入值。

    权威参考来源:

    注:该试验仅适用于饱和粘性土(如粘土、粉质粘土)。对于砂土、砾石或非饱和土,此方法不适用。试验结果代表的是不排水条件下的强度,对于长期稳定性分析(排水条件),需要采用其他试验(如固结排水三轴试验)。该试验有时也缩写为UC Test (UCST)。

    网络扩展资料

    “Unconfined compression”是工程学和土力学中的专业术语,指材料在无侧向约束条件下承受轴向压力的状态或测试方法。以下是详细解释:

    1. 词义拆解

      • Unconfined(无约束的): 表示材料在受力时没有侧向限制,例如周围没有支撑结构或压力。
      • Compression(压缩): 指物体受压力作用导致体积缩小的过程。
    2. 整体含义
      该术语通常指无侧限压缩试验(Unconfined Compression Test),用于测定土壤、岩石等材料在无侧向约束时的抗压强度。

    3. 应用场景

      • 土力学测试:通过试验仪(如无围压缩试验仪)对圆柱形土样施加垂直压力,直至破坏,从而计算其抗压强度。
      • 参数计算:试验结果可推导材料的黏聚力(cohesion)等力学性质,常用于地基承载力评估。
    4. 与其他试验的区别
      与三轴试验不同,无侧限试验无需施加侧向围压,操作更简单,但仅适用于黏性土等具有一定自支撑能力的材料。

    公式示例
    无侧限抗压强度($q_u$)的计算公式为:
    $$ q_u = frac{P}{A} $$
    其中,$P$为破坏时的轴向荷载,$A$为试样的横截面积。

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