permeable dike 中文意思是什麼

permeable dike 解釋
透水堤
  • permeable : adj. 能滲透[透過、穿過]的(to)。 permeable plastics 可透塑料。adv. -ably ,-ness n.
  • dike : n 1 堤,堤防,堰堤。2 溝,濠,渠。3 【礦物】巖脈。4 障礙物。vt 1 用堤[濠溝]圍繞。2 開溝排水。n 搞...
  1. Permeable pile dike is an important method for stream control in river restoration or construction, and is of some marked advantages including deep groundwork, large strength, simple construction, little emergency, easy maintenance, effective control on the flow trend and increasing the sedimentation

    透水樁壩是河道整治工程中的一種,由於其根基深,強度大,施工程序簡便,具有少搶險,易護理,同時具有控導河勢和在灘地緩流落淤等功效。
  2. Efficiency of permeable pile dike is closely related to water - sand ratio in upstream flow, direction of the coming flow and seepage rate. this paper investigates mechanism and effect of flow control and aggradation using hydraulic modeling and theoretical analysis. it is shown that suitable seepage rate can help aggradation and suitable coming flow direction can help to govern the flow trend

    研究結果顯示,來流和來沙一定的條件下,透水率在適當的范圍內有利於壩后緩流落淤,入流角在一定范圍內對控導河勢有明顯作用,不同方案組合所對應的緩流落淤效果和控導河勢作用具有一定的差異性。
  3. To improve the river reconstruction technique, it is necessary to investigate mechanism and effect of flow control and aggradation for permeable pile dike

    為了探索透水樁壩在黃河治理中的應用前景和應用技術,進一步研究和探討該工程的透水落淤機理和導流效果,為防洪治河提供理論依據。
  4. For different upstream conditions, thickness of sediment in the permeable pile dike region may reach 0. 67 m, and largest thickness is nearly 1. 9 m, and largest width reaches 1 km

    不同入流條件下的主過流區壩段的灘面淤積體厚度可達到0 . 67m以上,最大厚度可接近1 . 9m ,淤積體最大寬度可達1km 。
  5. 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。
  6. Scouring depth before the permeable pile dike reaches 20 m and the value increase with the upstream angle and flow rate of the coming flow

    樁前沖坑最大深度可接近20m ,入流角和流量越大,沖坑越深。
  7. In 1960s, it was tested to build permeable pile dike at some places along the lower yellow river. however, some stakes were destroyed by flood due to technique limit then, and efficiency was decreased

    在二十世紀六七十年代,透水樁壩工程曾在黃河下游的局部河段做過嘗試性實踐,由於技術問題,在洪水作用下,不同程度地出現倒樁和斷樁現象,其作用和效果受到一定影響。
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