試驗丁壩 的英文怎麼說
中文拼音 [shìyàndīngbà]
試驗丁壩
英文
test groin-
Through the study above, a refined description and modeling to flow field and water surface near the groyne in river is conducted with 2 - d and 3 - d mathematical models. the results by simulation are consistent well with experiment data
通過上述研究，作者採用二維和三維數學模型對水槽試驗和天然河道中丁壩附近流場和水面形態進行了精細地描述和模擬，計算結果和實測結果吻合良好。The outline tests on the alignment of spur dikes in the flume with repeated tidal flow were carried out based on the alignment of the regulation structures in the north trough of the deep waterway in the yangtze estuary
摘要結合長江口深水航道治理二期工程北槽中整治建築物的布置形式，在潮汐往復流水槽中進行了丁壩群不同布置形式的概化試驗。Through theoretical computation and experimental observation, it is put forward that the maximal depth of the scoured pits of the embankment is from ten to thirteen meters, and for several pits whose top are rinsed by main flow continuously, their scoured depth have reached twenty meters
經過理論計算和試驗觀測研究，提出了仁存渡以下沙質河床，丁壩最大沖刷坑水深為10 ? 13米，個別受主流持續頂?的丁壩，最大沖刷坑水深可達20米。And, we also have had the relation between the size of the horizontal circulation regions and the fr number around the dike for the flow - deflection method. the results of this study show that, using the method of flow - deflection or " sucking - spouting " water, the flow pattern can be improved, the size of the horizontal circulation regions and the sedimentation volume caused by the horizontal circulation can both be reduced. so, they can be adopted to improve the navigation condition of upper approaching channel of three gorges project, which could guarantee the safety of navigation
通過試驗，得到了以下創新的成果： 1 、不加吸、噴水時，丁壩后的迴流長度約為丁壩長度的8倍； 2 、加吸、噴水可以減小丁壩后的迴流尺度和強度，並得出了有理論根據的吸、噴流量與迴流尺度減小之間的定量關系以及吸、噴流量與丁壩周圍流速梯度之間的定量關系； 3 、加吸、噴水可以減小迴流淤積，並得出了吸、噴流量與淤積量減小之間的定量關系以及迴流尺度減小與淤積量減小之間的定量關系； 4 、加導流板可以減小丁壩后的迴流尺度，並得出了丁壩周圍的水流fr數與迴流尺度減小之間的定量關系。Test results show that spur dikes aligned along a single bank in the deep water zone have more effects on the adjustment of the bed topography of the wide - shallow river than in the shallow water zone ; alignment of spur dikes along both banks can effectively adjust the planimetric position of deep - water zone ; and a reasonable widening rate of the regulation line in the estuary can readjust the variation of the average water depth along the river
試驗結果表明，在深水區的單側丁壩群對寬淺河床地形的調整作用大於淺水區；雙側丁壩群的聯合作用能調整深水區的平面位置；合理地選擇治導線的放寬率，能有效地調整深槽平均水深的沿程變化。The experimental data was used to relate the size of the horizontal circulation regions and the sedimentation volume to the " sucking - spouting " discharge
試驗時，用寬50cm ，深60cm ，長13m的水槽模擬流道，設一丁壩作為突出山體的模型。Three kinds of permeable pile dikes with different seepage rate are tested, and effect of flow control is basically the same with the spur dike,
試驗的三種透水率樁壩，其導流效果與實體丁壩群的基本相同，並未因部分透水及形態不同而使其控導作用明顯減弱。Based on the local scouring test of the dike ' s head under the action of clear tidal currents, of both tidal currents and waves, and of both muddy tidal currents and waves, variations of the scoured pit ' s depth at each dike ' s head with time, and the scoured pit ' s depths with three experimental conditions are compared
進行了清水潮流和潮流波浪、渾水潮流波浪作用下的4條丁壩壩頭沖刷試驗，給出了各丁壩壩頭沖刷坑深度隨時間的變化，對比了3種試驗條件下丁壩壩頭沖刷坑的深度。分享友人