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- With a new horizontal saltation displacement vector, the initiation and evolution of aeolian sand ripples is simulated. 本文采用一个新的颗粒跃移矢量表达式,模拟了风成沙波纹的形成和演化过程。
- Shape characteristics of the natural aeolian sand ripples and their relations with the physical characteristics of surface sand. 自然风成沙纹的形态特征及其与地表沙物理性状的关系
- Shape characteristics of the natural aeolian sand ripples and their relations with the physical characteristics of surface sand 自然风成沙纹的形态特征及其与地表沙物理性状的关系
- Progress in aeolian sand ripple research-A review 风成沙纹的研究进展
- aeolian sand ripples 风成沙纹
- A WIND TUNNEL SIMULATION OF AEOLIAN SAND RIPPLE FORMATION 风成沙纹形成的风洞模拟研究
- aeolian sand ripple 风积沙波纹
- The interface rub characteristic between geogid and aeolian sand was measured with the pulling out experiment. 通过拉拔试验测定土工合成材料与风积砂的界面摩擦特性。
- The results indicate that using cement stabilized aeolian sand and macadam, as base course for road is feasible. 试验结果表明,水泥稳定风积砂碎石做基层在公路上的应用是可行的。
- The time of the earlier two layers of aeolian sand formed corresponds with the New Ice Age. 前两次风成沙在形成时代上可能与第一新冰期相对应,反映了沙漠的扩张状态。
- Study Progresses and Prospect on The Ecological Characteristics of Soil-inhabiting Microorganism in Soil Forming Process of Aeolian Sand Soil. 风沙土成土演变过程中土壤微生物生物学特性研究进展与展望
- The dynamic environmental characteristics of tide currents and the depositional geomorphic features in each sea area with sand ridges and sand ripples in the northern South China Sea are analyzed. 分析了各沙脊和沙波区的潮流动力环境和地貌沉积特征;
- Aeolian sand, distributed extensively around China?s arid and semi arid zones, is the main bearing body of wind erosion in China. 风成沙广泛分布于我国干旱与半干旱地区,是我国风蚀与风沙活动的主要载体。
- Moreover, possibility of pulling out geosynthetics should be noticed in checking interior stability of reinforced aeolian sand retaining wall. 此外,在进行加筋风积沙挡墙的内部稳定性验算时,应注意加筋材料被拔出的可能性。
- It is discovered that the change of wind erodibility of aeolian sand with its grain size complies with discontinuous function, 0. 风成沙广泛分布于我国干旱与半干旱地区,是我国风蚀与风沙活动的主要载体。
- The low numerical value distribution of these two types trace elements in the Aeolian sand facies represents erosion and accumulation under wind force during the cold-dry climate. 这两种类型元素在风成沙中呈现的含量低值揭示了其时干旱寒冷气候作用下风力的侵蚀搬运与堆积作用;
- The high mining height hydraulic support is designed for the special geologic condition of Shangwan Coal Mine,such as shallow buried depth,thin bed rock and thick aeolian sand. 大采高液压支架是针对上湾矿煤层浅埋深、薄基岩、厚风积沙等特定地质条件而研制的一种高性能综采液压支架。
- In this paper,lime and fly ash stability aeolian sand as a subbase material was researched,through researching the aeolian physical properties,mechanical properties in laboratory. 风积沙是沙漠地区最为丰富的物质,由于其工程性质较差,目前仍未被广泛用作沙漠地区公路筑路材料。
- It is significant to assess the risk of aeolian sand disaster(ASD) in city for urban security and sustainable development in sandy area of northern China. 开展风沙灾害危险度评价研究,对促进中国北方沙区城市的安全与可持续发展具有重要意义。
- The Aeolian sand is the most abundant material in the desert area, but its engineering property is so bad that it has not been used widely as paving material. 风积沙是沙漠地区最为丰富的物质,由于其工程性质较差,目前仍未被广泛用作沙漠地区公路的铺筑材料。