流砂槽 的英文怎麼說
中文拼音 [liúshācáo]
流砂槽
英文
hacking-
2, by detailed studying of sedimentary microfacies, guan 3 - 6 beds mainly belong to high crooked fluvial deposition system, and some parts of guan 5 - 6 show plait fluvial deposition system features : detailed divided them into edge beach, center beach and natural levee etc. 9 deposition microfacies and beach ridge and groove microficies
2 、通過沉積微相多層次逐級細分研究，認為館3 - 6砂層組主要屬于高彎曲度曲流河沉積體系，館5 6部分小層表現為辮狀河沉積體系；並細分出了邊灘、心灘以及天然堤等九種沉積微相，以及灘脊和凹槽等微微相。Furthermore, sorting of the sandstones in the braided river is better compared with that of in the meandering river system. in the same subfacies, grain size is larger and sorting is better in the channel sandstones which developed with large - scale cross - beddings such as trough cross - bedding, compared with sandstones in the flood microfacies. in the same microfacies, better sorting and coarser grained sandstones are distributed in the middle and lower part of the unit
與曲流河亞相相比，辮狀河亞相砂巖的粒度較粗，分選性較好，砂體多次疊置而規模更大；相同河流亞相的河道微相與泛濫平原微相相比，前者的砂巖粒度較粗、分選性較好，發育槽狀交錯層理等大型層理構造；在同一微相內，處于中下部的流體單元其粒度較粗，分選較好。Abstract : variations of flow pattern, flow velocity in deep poo l and side bar, mainstream thread, and water surface, caused by excavation project, are investigated by two - dimensional mathematical model in an orthogonal curvili near coordinate system. the change of bed - load transport rate, and redeposition r ate are predicted. the influences of the excavation project on navigation are ana lyzed. grid - type and flat - type excavation alternatives are proposed and discuss ed
文摘:採用正交曲線坐標系下的河道平面二維數學模型，研究了嘉陵江何家磧邊灘采砂后河道流勢、流態、灘槽流速、主流位置、水面高程及比降的變化規律，預測了采砂方案完成後卵石推移質輸沙率變化及其對航道的影響，並對格形開挖和平整開挖方案進行了比較分析Analyses of the monitored seepage data of the sand case dam with clay core of jilihe reservoir show that the impervious effect of the clay core is good, that the blanket in the front of the dam has little impervious effect, and that seepage failure will probably take place because of the weak cutoff groove and the large seepage gradient
摘要對吉利河水庫粘土心?砂殼壩的滲流觀測資料分析表明，該壩粘土心?的防滲效果較好，但壩前鋪蓋沒起到防滲作用，且截滲槽較薄弱，滲透比降較大，可能發生滲透破壞。分享友人