Experimental study and failure criterion of compressive concrete under various loading rates with uniaxial lateral confinement

1、

Damage model for compression fatigue loading of concrete with uniaxial lateral confinement

定侧压混凝土双压疲劳损伤模型

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2、

New formulae for effective confinement area and lateral confinement pressure are proposed.

提出了新的有效约束面积模型及侧向约束压力计算公式。

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3、

Second, according to the parameters based on the common tri-axial compression and lateral confinement compression test on the undisturbed soil sample, this paper calculate the soil stress between piles and dry density on the use of FORTRAN program, thus make some important conclusions.

其次，采用原状土样进行室内常规三轴试验及侧限压缩试验，确定试验参数，代入前述理论公式，借助FORTRAN语言计算桩间土土体应力及其干密度，得出了一些结论；

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4、

Authors made some tests including standard penetration on cement-soil piles, drilling for core and in-door compression without lateral confinement to accurately evaluate the construction quality of these cement-soil agitation piles.

通过对桩身水泥土进行标准贯入、钻孔取芯及芯样室内无侧限抗压试验，正确评价水泥土搅拌桩的施工质量。

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5、

PDF Simulation of a Confined Turbulent Jet Diffusion Flame

受限湍流射流扩散火焰的PDF模拟

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6、

At the same flow rate of ethanol, flame length and flame width of confined jet diffusion flame were all smaller than that of free jet diffusion flame.

结果表明，自由射流扩散火焰呈椭球状，受限射流扩散火焰呈圆锥状。

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7、

The methane combustion and reforming occured in the high pressure-temperature reformer is a typical confined diffusion flame.

甲烷和氧气在高温高压重整炉中的反应是一类典型的受限扩散射流火焰。

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8、

A computation method for a confined jet in sudden expansion duct

突扩管中受限射流的计算方法研究

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9、

The expansive agent can enhance the impermeability and the cracking-resistance of concrete through the working of the compensation shrinkage of concrete produced by confined expansion when it is added to concrete.

膨胀剂掺入到混凝土中，通过产生一定的限制膨胀，补偿混凝土的收缩，有利于提高混凝土的抗渗防裂。

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10、

It has been proved by the investigation that the filling effect of the confined expansion makes the reduction of holes in concrete as well as the increase of strength and elastic modulus of concrete.

实验证明：由于约束膨胀的填充作用，大幅度降低空隙率及孔径，定将有效地提高混凝土的弹性模量及强度。

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11、

The reinforcement ratio of a construction must be designed to create adequate confined expansion in the shrinkage_compensation concrete.

在结构设计时，需要考虑配筋率的高低，使对混凝土的约束能满足适当膨胀的要求。

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12、

We're in a very confined area.

我们在一个很有局限性的区域里。

provided by jukuu

13、

Application of Time Domain Electromagnetic Prospecting Technology in the Leading Survey of Confined Area with Ordovician Limestone

瞬变电磁勘探技术在奥灰承压区超前探测中的应用

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14、

The d value increases with the age of the groundwater in same aquifer from recharge area to confined area along the path of water flow.

在同一含水层内，沿着地下水的路径，从补给区到承压区，d值随着地下水年龄增大而增大。

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15、

Experimental Study on Confined High Pressure Arc Plasma Generator

高压受限电弧等离子体发生器实验研究

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16、

It is found that effectively confined plasma expansion is the main reason for the enhancement of the momentum-coupling coefficient.

分析发现，对等离子体的有效约束是提高动量耦合系数的主要原因。

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17、

Research into metal cutting with hydro-magnetically confined plasma arc

水－磁约束等离子弧切割方法研究

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18、

The soft X-ray spectrometer used for diagnosis of magnetically confined plasma

用于诊断磁约束等离子体的软X射线能谱仪

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19、

Body-fitted coordinate grid system technique has been adopted for calculating confined turbulent reacting swirling flow in a turboshaft engine combustion.

本文运用贴体坐标系统对涡轴发动机燃烧室流场进行了数值模拟。

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20、

Because traditional dry type classification was confined by the flow stability and material dispersion, there were many real difficulties in solving the particle size distribution and particle composition.

传统的干式分级由于受流场稳定性、物料分散等方面的制约，在解决窄粒度分布、切割清晰度和高回收率上存在困难。

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