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1)  seepage prevention measures
渠道防渗措施
2)  seepage control measure
防渗措施
1.
Dam foundation seepage control measure in Xiquanyan Reservoir;
西泉眼水库坝基防渗措施
2.
In order to solve the problem of reservoir s seepage, the new materials and new techniques are used and multi-level seepage control measures are adopted and excellent results are obtained.
为解决水库渗漏问题,采用了新材料、新工艺及多层次防渗措施,取得了很好的防渗效果。
3)  anti-seepage measure
防渗措施
1.
Application analysis of anti-seepage measure of irrigation canal;
灌溉渠道防渗措施应用现状分析
2.
Study of anti-seepage measures for foundation pit based on saturated-unsaturated seepage theory
基于饱和-非饱和渗流理论的基坑防渗措施分析
3.
The article analyses the leak reason of the roof by a project, and advances anti-seepage measure to some nodes.
本文应用实例对房屋漏水原因进行分析,主要针对节点部位提出了防渗措施,并阐述了防水补漏施工的步骤。
4)  anti-seepage measures
防渗措施
1.
At the same time, the research results about the anti-seepage measures showed that there is a positive correlation of lextension length of concrete cut-off wall in abutment with improvement of seepage characteristics around the dam,but its length is more than a certain value,the effect will tend to significantly reduced.
同时,关于该工程绕坝渗流防渗措施的研究结果表明,坝肩混凝土防渗墙的延伸长度与绕坝渗流特性的改善呈正相关性,但其长度超过一定值时,改善的效果将趋于明显减小。
5)  channel anti-seepage
渠道防渗
1.
Application of channel anti-seepage model in Jiangsu Province;
江苏省渠道防渗模式应用分析
2.
Reducing water conveyance loss is an effective way to save water in agriculture,in which channel anti-seepage and low-pressure pipe have many advantages as follows: less investment,more fruitage,uncomplicated technology to grasp easily.
减少输水损失是实现农业节水的一种有效方法,其中渠道防渗和低压管道输水技术具有投资少、成效大、技术简单农民易于掌握等优点很受农民欢迎,值得推广。
3.
An analysis of some channel anti-seepage in Fengle irrigation area is given.
文章分析了丰乐灌区渠道渗漏的原因,提出了丰乐灌区渠道防渗的相关措施和方法。
6)  canal seepage control
渠道防渗
1.
Advances in canal seepage control techniques in China;
我国渠道防渗技术研究与进展
2.
Through analyzing on the frost heave in the canal seepage control,this paper sums up the main factors influencing the frost heave of canal,and connecting with the practice,probes into some treating methods.
通过对渠道防渗中的冻胀问题进行分析,总结出影响渠道冻胀的主要因素,并结合实际情况,探讨了处理办法。
3.
The future development of this synthetic fiber concrete is suggested, and the application of it in canal seepage control is prospected.
提出了这种混凝土新材料今后的研究方向,并对在渠道防渗工程中的应用前景进行了展望。
补充资料:渠道防渗
      减少渠道输水渗漏损失的工程措施。渠道防渗不仅能节约灌溉用水,而且能降低地下水位,防止土壤次生盐碱化;防止渠道的冲淤和坍塌,加快流速提高输水能力,减小渠道断面和建筑物尺寸;节省占地,减少工程费用和维修管理费用等。
  
  
  渠道防渗方法可分两类。①改变原渠床土壤渗透性能,又可分为物理机械法和化学法。前者是通过减少土壤空隙达到减少渗漏的目的,可用压实、淤淀、抹光等;后者是掺入化学材料以增强渠床土壤的不透水性。②设置防渗层,即进行渠道衬砌(见彩图),可用混凝土和钢筋混凝土、塑料薄膜、砌石、砌砖、沥青、三合土、水泥土和粘土等各种不同材料衬砌渠床。采用防渗措施后,渠道渗漏损失可以减少50%~90%。混凝土衬砌是一种较普遍的渠道防渗形式,防渗防冲效果好、耐久,但投资较大。塑料薄膜防渗国外在20世纪40年代已开始应用,中国60年代以来发展很快,防渗效果好,造价亦较低,一般应用于流速小的渠道。三合土、水泥土等防渗材料可就地取材,造价较低,适于无冻害地区使用。70年代以来,对沥青玻璃纤维等防渗新材料以及机械化施工等方面的研究、推广应用,正逐步得到发展。在有冻害地区进行渠道衬砌,需采取防冻措施。防治渠道冻胀破坏可采用改善土壤性质和减少土壤水分,减轻基本冻胀强度,使衬砌结构适应基土的冻胀变形等方法。
  
  渠道防渗是农业节水的重要措施之一,正日益受到重视。
  

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