1) liquefaction resistance of sands
砂土抗液化强度
2) liquefaction resistance
抗液化强度
1.
How to properly evaluate the in-situ liquefaction resistance of saturated sand strata
如何正确评价原位饱和砂土的抗液化强度
2.
The study result has shown that when the fines content is about 35 %,the liquefaction resistance of tailings is the best.
该式可以分析不同细粒含量的尾矿材料的抗液化强度,提高尾矿坝液化判别方法的判别准确程度。
3.
The relativity between the shear wave velocity and the liquefaction resistance of undisturbed and remolded loose saturated silt is analyzed by a kind of combined test apparatus on which shear wave velocity and dynamic triaxial test of soil specimen.
采用剪切波速与振动三轴联合试验装置,分析了原状和重塑饱和松散粉土的抗液化强度与剪切波速之间的相关性。
3) cyclic liquefaction resistance
抗液化强度
1.
Experimeatal study on quantitative relationship between shear wave velocity and cyclic liquefaction resistance of saturated sand;
饱和砂土的剪切波速与其抗液化强度关系研究
2.
The effect of the shear wave velocity on the cyclic liquefaction resistance of saturated loose sands (silts) has been studied using a new cyclic triaxial system with measurements of shear wave velocity.
在饱和砂(粉)土的震动液化研究中,剪切波速对土的抗液化强度和结构性影响的研究是一个尚未解决的问题。
4) cyclic resistance ratio(CRR)
抗液化强度(CRR)
5) soil liquefaction
砂土液化
1.
Aseismic reliability of traversing pipelines based on soil liquefaction analysis;
基于砂土液化分析的穿越管道抗震可靠性
2.
The tests made before and after the construction show that this technology has a good effect on reinforcing the foundation and eliminating the soil liquefaction.
主要介绍了地基强夯技术在粤海铁路运输大楼高填方、松散厚砂层地况下的施工方案及施工技术要点,并通过强夯前后的检测,说明强夯法加固填土地基,消除砂土液化可获得良好的效果,为同类工程的方案设计及施工提供参考。
3.
Finally, by means of this model, the process and phenomena of the soil liquefaction is exp.
最后 ,利用该模型从土体结构破坏的角度解释了砂土液化的过程和现
6) sand liquefaction
砂土液化
1.
Study on the saturated sand liquefaction judgment method in Guangzhou district;
广州地区饱和砂土液化判定方法研究
2.
Seismic settlement estimation of sand liquefaction based on RBF neural network model;
基于RBF神经网络模型的砂土液化震陷预估法
3.
Probabilistic estimation of sand liquefaction based on neural network model of radial basis function;
基于径向基函数神经网络模型的砂土液化概率判别方法
补充资料：砂土液化
| 砂土液化 Sand Liquefaction 饱水的疏松粉、细砂土在振动作用下突然破坏而呈现液态的现象。其机制是饱和的疏松粉、细砂土体在振动作用下有颗粒移动和变密的趋势，对应力的承受从砂土骨架转向水，由于粉和细砂土的渗透力不良，孔隙水压力会急剧增大，当孔隙水压力大到总应力值时，有效应力就降到0，颗粒悬浮在水中，砂土体即发生液化。砂土液化后，孔隙水在超孔隙水压力下自下向上运动。如果砂土层上部没有渗透性更差的覆盖层，地下水即大面积溢于地表；如果砂土层上部有渗透性更弱的粘性土层，当超孔隙水压力超过盖层强度，地下水就会携带砂粒冲破盖层或沿盖层裂隙喷出地表，产生喷水冒砂现象。地震、爆炸、机械振动等都可以引起砂土液化现象，尤其是地震引起的范围广、危害性更大。砂土液化的防治主要从预防砂土液化的发生和防止或减轻建筑物不均匀沉陷两方面入手。包括合理选择场地；采取振冲、夯实、爆炸、挤密桩等措施，提高砂土密度；排水降低砂土孔隙水压力；换土，板桩围封，以及采用整体性较好的筏基、深桩基等方法。 |
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条