On Reservoir Productivity Forecast for Jishan Sand Bed in Shengli Oilfield

This paper presents an experiment for measuring the acoustic energy loss in the sand bed in water tank.

介绍了测量声波穿透沙层后能量损失的水池实验。

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The construction of the sand bed used as mould, its preparing and drying were described.

叙述砂床的构造、制作及烘干方法、浇注温度的控制等。

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Design for the Guangzhou subway tunnel with Watered sand bed

广州地铁杨体区间含水砂层设计

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With the dry sand bed thickness increasing, the evaporation quantity decrease gradually;

随着干沙层厚度的增加，土壤蒸发量逐渐降低；

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The suppression rate of evaporation increases with the dry sand bed thickness increasing;

各观测日的蒸发抑制率随着干沙层厚度的增大而增大；

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Problems of design and construction of hand-excavated pile expanding bottom in sand bed

人工挖孔桩在砂层上扩底时应注意的设计与施工问题

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Influence of dry sand bed thickness on soil moisture evaporation in mobile dune

流动沙丘干沙层厚度对土壤水分蒸发的影响

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A sand bed interpolation technique in line with the basic rule of thin layer comparison

符合小层对比原则的砂层内插技术

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A prediction method for permeable sand bed in land facies formations

陆相地层渗透性砂层预测方法

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Construction experiences of large area sand bed

大面积砂垫层施工技术实践

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Application of water-absorbent to vegetation rebuilding in sand bed

高分子吸水剂在沙地植被重建中的盆栽效果试验

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The germination tests take sand bed as the best.

发芽试验以沙床为最好。

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Germination was faster in paper bed than in sand bed.

在纸床上的发芽速度大于砂床。

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A Calculation Method of Sand Bed Load Rate

沙质推移质断面输沙率计算方法

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Construction Technique of Shielding the Sand Bed with Soil Pressure Balance

砂层地段土压平衡盾构施工技术探讨

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The mathematical model and experimental study of continuous sand bed filtration

流动砂滤床的数学模型与试验研究

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From the ground to the surface of the sand bed, the average volume fraction of sand particles in the sand bed gradually decreases.

从地表至沙床表面，同一平面的沙床平均堆积率逐渐减小。

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Then the crust deformation of on sand bed is simulated under concentrated load.

在此基础上，导出化学固沙结皮的弹性模量E和蠕变函数公式，并数值模拟了沙床上的结皮在集中载荷作用下的变形。

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Based on area change of flowing sandlot, the harm of quicksand on the farm, herd, water conservancy and traffic in that region was analyzed, and countermeasures of natural renew, and biological and engineering controlling in allusion to quicksand harm were put forward.

以流动沙地面积变化为切入点，分析了流沙对当地农牧业、水利、交通的巨大危害，并因害设防地提出了自然生态恢复及生物和工程防治对策。

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These trends reflect the fact that arable land, community and artificial woodland expanded, while lawn, marsh and hydrographic net degenerated observably, sandlot situation is grim. The whole situation of desertification in western region is not optimistic.

上述发展趋势反映出耕地、社区、人工林地扩张，草地、湿地-水系显著退化，沙地整体形势严峻，西部地区荒漠化形势不容乐观。

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