gully cutting 中文意思是什麼
gully cutting
解釋
溝蝕沖切-
The proportion that the sediment yield of the main gully accounts for the total sediment yield of the experimental watershed model is from48. 7 % to 66. 6 %, and the proportion that deposition sediment yield of main gully accounts for the total deposition sediment yield of the experimental watershed model is from64. 9 % to 99. 4 %. the developing process of topographic feature of the experimental watershed model. expanding the gully width and cutting down the gully bottom are the two chief forms of the topographic feature development
流域模型地貌形態發育過程溝谷擴展和下切是流域模型地貌形態發育的主要形式，溝谷擴展發育主要發生在發育活躍時段，主溝所佔溝谷總面積比例在流域模型溝谷擴展發育過程中保持在60以上：主支溝下切發育在發育初期和發育活躍時段前期表現最為劇烈，其橫剖面為v字形，在發育初期和穩定時期時段呈現淺u字形和底部較為平坦的梯形，主溝的橫剖面發育明顯優先於各支溝。 -
Check dams system plays an irreplaceable role in preventing gully bed from cutting down, improving yield, accelerating the recovery of regional vegetable and adjustment of land utilization structure, improving adjustment of rural industrial framework, enhancing the efficiency of water resources, ameliorating local traffic, speeding up the development of rural science, technology and civilization
研究結果表明，黃土高原丘陵溝壑區的淤地壩壩系在防止溝道侵蝕、提高糧食產量、促進植被恢復及土地利用結構調整、促進農村產業結構調整、提高水資源利用率、便利交通、促進農村科技文化事業的發展等方面發揮著不可替代的作用。 -
Firstly, the spread law of tunnels is conclused and analised : tunnels often occurs in gully of loess ridge or where face gully and the connection of embankment and cutting. collapse, sink and open up are the harm that often done by tunnels. the breadth treated is the spot among 30 ~ 50m above the embankment and cutting, and 10 ~ 20mlow
其次，在前人工作的基礎上，研究了注漿法在路基暗穴處理中的加固機理，用注漿法處理暗穴時在理論上應用的是滲透注漿和壓密注漿，文中分析了球形擴散理論、柱形擴散理論和袖珍套管理論的特點。
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