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;
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。
The transient effective shear-strength theory characterizing the strength change behavior of saturated sand under cyclic loading is presented in this paper.
本文给出了一个适用于表征饱和砂土在往返荷载下强度变化特性的瞬态有效抗剪强度理论。
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。
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。
Saturated sand ground tests are the leading and essential constituent of shaking table tests to study the characteristics of stone columns composite foundation.
饱和砂土地基试验是研究碎石桩复合地基抗液化性能振动台试验的先导和必要组成部分。
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。
Through the long processs of practice and experiments, a conclusion is drawn that the principle of effective stress is applicable and effective in both saturated sand and clay.
指出长期的工程实践和大量的试验成果表明有效应力原理对于饱和砂土和黏土都是适用的和有效的。
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。
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。
The dynamic response of pile foundations in saturated sand was explored through the shake table test. Some ideas about dynamic soil-pile interaction during strong shaking were obtained.
通过振动台试验,研究了饱和砂土中桩基的振动特性,对桩土振动过程中的动力相互作用有了初步的认识。
The phenomenon that water content redistribution occurs in a saturated sand due to the application of shear in naturally drained conditions is referred to as "water absorption in shear".
饱和土在自然排水条件下随着剪切作用而发生的含水量增大的行为和过程被称为剪切吸水现象。
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。
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。
The behavior of the model pile in the liquefying saturated sand layer during shake is studied through the shake table test, and some results about the soil-pile dynamic interaction are obtained.
通过振动台试验,研究了饱和砂土中桩基的振动特性,对桩土振动过程中的动力相互作用有了初步的认识。
The charge weight, charge placement (in profile) and depth of charges are important factors in design of explosive compaction for saturated loose sand.
装药重量、装药形式、装药的深度是爆炸法密实饱和砂地基设计中比较敏感的设计参数。
The movement of light oil(gasoline and kerosene)in subsurface homogeneous water saturated zone and water unsaturated zone were simulated in a two-dimensional sand trough model.
在二维砂槽模型中模拟了轻质油在均匀多孔介质地下水非饱和区和饱和区中的运移过程。
This paper presents the drained test of saturated tailing sand in dynamic simple shear apparatus by measuring volume change of the sample under cyclic loading.
本文通过对饱和尾矿砂在振动单剪仪上的排水试验,量测了试样在周期荷载下的体积变化。
The charge weight, charge placement(in profile) and depth of charges are important factors in design of Explosive Compaction for saturated loose sand.
沿处理深度方向上装药量、装药形式、装药深度是爆炸法密实砂土地基设计中比较敏感的设计参数。
Based on the results of dispersion experiments on cores of sand and shale, the paper analyzed the variability of acoustic dispersion for dry and water-saturated cores.
结合岩心砂泥岩频散特性实验结果分析了岩心在饱水及干燥状态下声频散的特点。
Uniaxial compression tests are performed on saturated frozen sand at various temperatures and strain rates. The elastic modulus is obtained from these tests.
通过在不同温度及不同应变率下对饱和冻结中砂进行单轴压缩试验,获得了静载下饱和冻结中砂的弹性模量。
In the site tests of which the explosive compacting is used for treatment of water-saturated fines sand ground, the pore-water pressures at the moment of explosion are measured.
爆炸密实法处理饱和粉细砂地基的现场试验中,对爆炸过程中的孔隙水压力进行了实测。
In this paper an attempt has been made of improving the saturated soft soil ground by means of dynamically compacted sand-cobble columns.
本文作者采用强夯法成(砂卵石)桩,进行了饱水软弱土地基改良尝试。
The sand column, saturated at its lower portion and initially in the condition of hydrostatic equilibrium, is drained at its bottom at constant head.
砂柱下部饱和并处于静水平衡状态,在底部为定水头的条件下进行排水。
Both saturated-unsaturated flow drainage experiment without the fine sand layer on the top of the coarse sand and air-water two-phase flow drainage experiment with the fine sand layer were performed.
进行了粗砂上部没有细砂层的均质砂柱的饱和-非饱和流排水实验以及粗砂上部存在细砂层的水气二相流排水实验。
Both saturated-unsaturated flow drainage experiment without the fine sand layer on the top of the coarse sand and air-water two-phase flow drainage experiment with the fine sand layer were performed.
进行了粗砂上部没有细砂层的均质砂柱的饱和-非饱和流排水实验以及粗砂上部存在细砂层的水气二相流排水实验。
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