The study shows that the method is feasible to predict the liquefaction of sand soil.
研究表明,用RBF神经网络方法进行沙土地震液化预测是可行的。
Although the dredged sand has a higher strength, the earthquake liquefaction of sand should be considered.
吹填砂虽然强度较高,但地震时存在液化的问题。
Typical geological hazards in Beijing plain included active fault, seismic liquefaction of sand and land subsidence.
北京市平原区地质灾害主要表现为活动断裂、地震砂土液化和地面沉降。
This paper analyzes the application of the statistical analysis method to the estimation of the liquefaction of sand.
分析了多元统计方法在饱和砂土液化判别方面的应用。
Shock liquefaction of sand layers is a principal engineering geological problem for the Hadashan water conservancy project.
砂层震动液化问题是哈达山水利枢纽工程首要的工程地质问题。
In recent two years there appears a new tendency to analyze the liquefaction of sand using FEM on the basis of the effective stress principle.
按有效应力原理并用有限单元法分析砂土的液化过程是国际上近两年来出现的新动向。目前已发表的文献仅限于探讨—维应力状态的地基水平振动问题。
The application of gravel pile and CFG pile composite foundation in foundation treatment of liquefaction of sand and soil in seismic area is introduced combined with engineering example.
结合工程实例,介绍了在高地震区砂土液化地基土处理中,应用碎石桩、CFG桩组合型复合地基。
Expressions of total residual pore pressure and critical ratio of pore pressure in different failure stages of liquefaction in saturated sand are deduced based on the dynamic tri-axial tests.
通过动力三轴试验,给出了饱和砂的残余孔隙水压力的全量表达式和不同液化破坏阶段的临界孔隙水压力比的表达式。
This paper presents the effects of soil liquefaction on design response spectrum in terms of effective stress theory by considering the thickness and depth of sand layer, and the earthquake intensity.
本文采用有效应力原理分析了液化土层对设计反应谱的影响,分析中考虑了砂层的厚度、埋深和输入地震动等因素。
The behavior properties and corresponding mechanics of the three modes of liquefaction due to earthquake, was stated, namely sand boil, flow slide and cyclic mobility detailedly.
阐述了地震液化的三种表现形式砂沸、流滑和循环活动性的表现形式、作用机理和触发条件。
Since the existing assessment methods of sand liquefaction are not mature, there is much limitation in assessing the possibility of deep sand liquefaction.
目前各种砂土液化判别方法均尚不成熟,尤其在对埋深较大的砂层液化的判别上存在着较大的局限性。
The range of liquefaction is limited so that sand liquefaction does not cause slide failure during vibroflotation.
液化的范围是有限的,因而振冲时砂土液化不会造成坝坡坍滑。
The result shows that the shear-wave velocity of saturated sand could be strongly related to the liquefaction resistance under a certain liquefaction criterion.
结果表明,在给定的应变破坏标准下,饱和砂土剪切波速与抗液化强度具有良好的相关性。
The research expresses that the extension assessment method and the support vector machine are useful tool in the assessment and prediction of sand liquefaction potential.
研究表明,可拓评价方法和支持向量机对于砂土液化势进行评价是行之有效的。
Combined with the construction practice, the paper introduced the principle, performance and design method of the liquefaction of vibrating sand compaction pile.
结合振动挤密碎石桩公路工程中的应用实例,介绍了振动挤密碎石桩抵抗砂土液化的原理、性能和设计方法。
Based on the microscopic field data of liquefaction it is pointed out that non-uniform settlement of building is the primary type of damages caused by sand liquefaction during earthquake.
基于宏观液化震害资料文中指出,砂土地震液化造成的主要破坏形式是建筑物的不均匀沉降。
The propagation of violent earthquake wave and sand liquefaction are two reasons to make underground pipeline damage.
强烈地震波的传播及砂土液化是造成地下管线发生破坏的两类原因。
Steady state strength is an important parameter in evaluating the stability of sand deposits against flow liquefaction.
残余强度或稳态强度的确定是砂土液化研究中的重要课题。
In geotechnical investigation, clay particle content is often used in identifying saturated sand liquefaction and calculating the characteristic value of foundation bearing capacity.
在岩土工程勘察中,粘粒含量这一特殊指标常用于判别饱和砂土液化以及进行地基承载力特征值计算。
Principle of saturated sand cyclic liquefaction evaluation by shear wave velocity is presented.
首先介绍了应用剪切波速判别饱和砂土振动液化的原理;
Influential factors of liquefaction of saturated sand in alluvial plain of Yellow River are analyzed, then one of the anti-liquefaction methods, vibroflotation, is introduced.
分析了黄河冲积平原区饱和砂土液化的影响因素,并介绍了在黄河冲积平原区处理砂土液化的方法之一—振冲法的应用。
It was shown that the present method was efficient in solving the prediction of sand liquefaction and could be applied to practical engineering.
距离判别分析理论是解决砂土液化预测问题的有效方法之一,可以在实际工程中进行推广。
It also found that the numerical sand sample made from randomly mixing multiple shapes of sand can quantitatively reflect the regularity of fabric evolution of sands during liquefaction.
随机混合仿真试样可以从定性角度反映实际砂土振动液化过程中的细观组构演化规律,为今后进一步的定量研究奠定了基础。
This paper discusses liquefaction mechanism of saturated sand affected by earthquake force, analyzes various influence factors, then put forward some measures to prevent sand liquefaction.
探讨了地震力作用下饱和砂土的液化机理,分析了影响饱和砂土液化的各种因素,并提出了防止砂土液化的一些措施。
By means of analyzing leading components, this paper puts forth main factors influencing sand liquefaction.
文中并进行主成分分析,提出液化影响的主要因素。
It was shown that the resistance to liquefaction of saturated sand was considerably related with both the area of elliptical stress path and the ratio of the two stress components.
试验结果表明砂土在双向耦合荷载作用下,其液化强度与加载椭圆路径的面积和两个荷载分量比值密切相关。
The study on the liquefaction characteristics of saturated sand ground improved by soil -cement pile under under modeling the earthquake force is poorer.
对于如何预防砂土液化也成了岩土工程界的一个重要研究问题。
For the same ratio of two stress components, the resistance to liquefaction of saturated sand decreased with the increasing area of the elliptical stress path.
当轴向应力与剪应力幅值的比值保持不变时,砂土液化强度随着椭圆面积的增大而降低。
For the same ratio of two stress components, the resistance to liquefaction of saturated sand decreased with the increasing area of the elliptical stress path.
当轴向应力与剪应力幅值的比值保持不变时,砂土液化强度随着椭圆面积的增大而降低。
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