| 1. | Concrete slip - form canal linings 混凝土滑坡渠道衬砌 |
| 2. | Treatment of crack in concrete plate of channel lining at xinyigou reservoir 信邑沟水库过坝渠道衬砌砼板裂缝的处理 |
| 3. | The technique protecting frost cracking and leakage of main canals in the irrigation area of ningxia 宁夏引黄灌区骨干渠道衬砌防渗抗冻技术 |
| 4. | The paper mainly analysed that according to different situations , different type could be chosen to save water to great extent 并针对不同情况,分析了采用不同的渠道衬砌形式,达到节水的效果。 |
| 5. | Uplift reduction by drainage is an important technology for ensuring large - sized channel lining works , especially in preventing damage of uplift in high groundwater level to lining body during the non - conveyance period 摘要大型渠道衬砌中的排水减扬压技术是确保渠道衬砌施工的一项重要技术,对于防止非输水期特别是汛期高地下水位对衬砌体的扬压破坏具有重要作用。 |
| 6. | During 1970s - 1980s , irrigation management department launched canal lining for main canal . irrigation management department initiated large scale canal lining project because of great government finacial investment on water saving project resconstruction since 1995 自七十至八十年代,开始对干渠进行防渗衬砌,进入九十年代特别是1995年以后,国家加大了节水改造的投入,灌区开始了较大规模的渠道衬砌工程。 |
| 7. | In order to solve the problems of irrigation ditch building in ningxia area , the paper explained : ningxia lacks of water resource and it is vital to save water ; the building of irrigation ditch linings is a major water - saving measure ; there are several major types of ditch linings 摘要为解决好宁夏地区渠道衬砌,阐述了:宁夏水资源紧缺,节约用水势在必行;渠道衬砌是一项主要节水措施;渠道衬砌的主要类型。 |
| 8. | At the same time , this paper point out it is a development direction making use of macromolecule material to develop flexible and inflexible mixed canal lining frame or flexible frame with credible technology , simple configuration and rational price 同时,提出了增加混凝土板下铺设聚苯乙烯板厚度并进行优化设计的方案,需进一步试验研究;指出了利用高分子材料研制技术可靠、结构简单、经济合理的刚柔混合结构或纯柔性结构作为渠道的衬砌结构,是今后渠道衬砌发展的方向。 |
| 9. | Canal lining project have been suffered from freeze for a long time at ningxia irrigation area and cause some serious results . a great deal of capital has been spent in convinence and rebulid of old canal lining every year , it affects badly positive benefit of hydraulic project and delays the development speed of irrigation area 长期以来,宁夏灌区渠道衬砌工程一直受冻胀危害,使得渠道衬砌发展不快,每年大量资金都用在原有衬砌渠道的维修改造上,不仅严重影响了水利工程效益的发挥,而且大大地影响了灌区的发展。 |