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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
- Simulation of bed load graing in alluvial rivers with sand bed 沙质河床冲刷过程中床沙级配的模拟
- In this paper,firstly,the formula for estimating the bed load transport rate in the bed of sand waves of prototype by model experiment based on the similarity of grain Froude number was inferred. 基于沙粒佛汝德数相似原理,首先推导出利用模型试验结果估算原型沙波河床上推移质输沙率的推算公式;然后塑造与原型较为一致的床面形态,利用模型试验对推算公式进行了验证。
- MAINTENANCE AND HARNESSING OF WATER-CONTAINING SILTY AND FINE SAND BED IN SOFT SLOPE OF OPEN PIT. 露天松软边坡内含水粉细沙层的维护治理。
- S-wave section favours the disco- vering of minor faults and small structures, and the tracing of thin sand bed. 横波剖面对于识别小断层、小幅度构造和追踪薄砂层也更有效果。
- Aggrading streams heavily charged with bed load may fill their channels nearly to the top of the banks. 带有大量推移质的堆积河流可以把河槽淤高到几乎与岸顶齐平。
- The thin sand bed is composed of tight mixed type cementation facies and untight mixed type cementation facies. 其中,薄砂层由致密混合型胶结相和非致密混合型胶结相组成;
- The scattered single barchan dunes on the non sand bed possess movability and form unstability except the high large crescent sand mountain. 非沙质床面零星分布的单个新月形沙丘具有明显的移动性和形态的不稳定性(高大新月形沙山除外)。
- An estimation method of bed load transport rate based on the grain froude similarity is proposed. 运用沙粒佛汝德相似的原理,提出了推移质输沙率的推算公式。
- The scours of a sand bed in front of a vertical breakwater acting by standing waves, broken waves or breaking waves are systematically investigated. 本文对立波、远破波、近破波作用下直立堤前海床的冲刷进行了系统的研究。
- Bed load particles move spasmodically, perhaps at long intervals, and are at rest on the stream bed most of the time. 推移质颗粒多半作间歇运动,而大部分时间则停歇在河床上。
- This method is used to modeling the permeability distribution of a sand bed of the Shahejie formation(Eocene) in Pucheng oilfield, Henan province. 在濮城油田东区沙二下储层非均质性研究中,采用该方法对沙二下亚段的渗透率进行了研究,并与普通克里金法建立的模型进行了对比。
- In the stream with strong bed load movement there is no benthic macroinvertebrate. 河势散乱且河床运动剧烈的支流物种丰度和密度均很低甚至为零,生态条件差。
- Jishan sand bed, a delta-packed turbidite fan-deposit distributing along Jishan trough, has been attracted our attention in recent years. 基山砂岩体是近年来引起关注的一种沿基山槽展布的三角洲充填浊积扇沉积,其物性较差,储层产能预测对于这类地层显得尤为重要。
- The instantaneous sediment transportof suspended and bed load are computed, and the sediment transport rates are time-averaged over one wave period. 计算了波浪周期内各个时刻瞬时的悬移质和推移质泥沙输沙率,并对输沙率进行时间平均求得时间平均的输沙率。
- Based on the study of sediment transport under the actions of tidal currents and wind waves, a mathematical model of suspended load and bed load for Yangtze Estuary is developed. 摘要通过对长江口径流、潮流和波浪共同作用下的泥沙运动规律的研究,开发并建立了长江口全沙(悬沙和底沙)数学模型。
- By the measured data of "9711" Typhoon wave,the process of bed load resuspending under the effect of "9711" Typhoon wave around the channal of Yangkou Harbour is calculated. 利用“9711”台风浪实测资料,计算了洋口港航道所在海区在“9711”台风浪作用下床沙的悬浮上扬过程,得出洋口港航道不具备骤淤的可能性。
- Straightforwardly, we can see the special beds for cows with two kinds.One is sand bed, the other is offset bed. 在我们的正前方,大家看到的是奶牛的专用卧床,有沙子和胶版两种形式,奶牛卧在上面舒服、卫生。
- In the meanwhile, the result also show that the section configuration and near watercourse characteristic has influenced gravel bed load transport rate. 河床断面形态及其相邻河道特性对输沙率也有较大的影响。
- The truck dumped its load of sand on the driveway. 卡车将沙子卸在车道上。