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1)  anti-filtration
反滤层法
2)  filter [英]['fɪltə(r)]  [美]['fɪltɚ]
反滤层
1.
Based on the analysis, a conclusion is drawn that the nonwoven cloth could satisfy the neen of drainage and could not occure the unallowed siltation phenomenon when it is used for (filter.
对某工程所用的无纺布进行了物理力学特性试验、渗透性试验和淤堵试验,说明此种无纺布能满足排水要求,且用做反滤层时,不会产生不允许的淤堵现象。
2.
On the basis of laboratory tests,criteria for permeability of geotextile filter are discussed.
本文在大量室内试验的基础上,对现有土工织物反滤层透水性设计准则进行了较详细的讨论,并在美国陆军工程师团准则的基础上建立了新的广义梯度比准则。
3.
The results shown that if the cut-off wall contacts well with the core, then the connected section has higher impervious strength; if it does not contact well, disjointed and has concentrated seepage, the filter which is located at the exit of seep age and in good gradation, can not only prevent the erosion in the core, but a.
试验结果表明,如果防渗墙与心墙接触良好,则连接段具有较高的抗渗强度;若防渗墙与心墙接触不良,相互脱开,有集中渗流,则设置在渗流出口的级配良好的反滤层不仅可以防止心墙被接触渗流冲蚀,而且会使集中渗流最终消失;反滤层控制接触渗流的效果与其级配有关,细反滤层控制效果较好,对小浪底水库,当反滤层的d_(20)≤0。
3)  filter layer
反滤层
1.
Discussion on seepage stability of filter layer in rock-fill dam with sloping clay core of Zhangfeng Reservoir;
张峰水库粘土斜心墙堆石坝反滤层渗透稳定性探讨
2.
The filter layer is an effective way to prevent soil from being destroyed by seepage.
反滤层是防止土体渗透破坏的有效措施,无砂混凝土具有良好的透水性、过滤性和稳定性。
3.
It is conclued that the filter layer can protect the core wall of earth rock dam from flow erosion.
为了解水流冲刷作用下反滤层对土石坝心墙裂缝发展保护作用的特点和机理 ,以黑河土石坝心墙裂缝冲刷试验为例 ,分别采用常水头和变水头两种方法 ,探讨了土石坝心墙裂缝在水流冲刷过程中的特点。
4)  filtering layer
反滤层
1.
The paired tests,geotextile and grass-soil were used respectively as filtering layer to protect bank slope in the geoyne or herringbone dam constr uction for the regulation of river.
介绍了土工布做反滤层的设计和施工方法,对土工布和草土体做反滤层的效果和工程造价进行了分析评价。
5)  inverted filter
反滤层
6)  stratigraphic deconvolution
地层反滤波
1.
This article describes a new method for stratigraphic deconvolution that is based on the frequency decay experienced at different VSP depth levels in a well.
地层反滤波算法就是为了消除地层对子波的影响,利用VSP中的直达下行波推算出每个地层滤波算子,计算出各个地层滤波算子的反算子,然后利用这些反算子恢复出地表记录中损失掉的高频成分,减弱地层滤波对波形的影响,增加地表记录的频率成分和波形的准确度。
补充资料:多层滤料滤池
分子式:
CAS号:

性质:一种下流式重力深床滤池。一般采用3种滤料,上层为无烟煤(粒径1~2mm),中层为砂(粒径0.4~0.8mm),底层为石榴石(粒径<0.5mm)。过滤速度为10m/h,反冲强度为48~72m/h。在对生物处理后的出水进行过滤时,需采取某种形式的辅助冲洗措施。

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