1) sward cofferdam
草土围堰
1.
To provide the accordance for the future design and construction on sward cofferdam, this paper summarized the desig tion process of sward cofferdam combined with practice of using sward cofferdam in the upper reaches of Yellow River in Gansu Pr ty years.
结合甘肃省黄河上游地区40多年使用草土围堰的实践,对草土围堰的设计和施工进行了总结,为今后草土围堰的设计和施工提供依据。
2.
New hydraulic construction techniques and their application to the Zuojiang Water Conservancy Project are introduced as follows: ①the sward cofferdam technique is first successfully applied to the Zuojiang Project, the permeability coefficient of the cofferdam being 1×10 -5 ?cms, the ratio of the inner and outer gradient being 1∶1 , the resisting flow velocity being 3～3.
①首次在左江干流大 (Ⅱ )型水利工程成功应用草土围堰技术 ,其渗透系数为 1× 10 - 5cm/s ,内外坡比 1∶1,抗冲流速 3～ 3 5m/s ,寿命可达 2a ;②采用水坡过坝建筑物 ,坡槽为钢筋混凝土“U”型断面 ,整体结构 ,全长 12 35m ,纵向坡率 3%,可比船闸方案减少投资 90 0万元 ;③在国内首次将消力戽应用于较低Fr数水流的较大工程 ,解决了低Fr数水跃摆动问题 ,且在较短的下游水流表面消除了波动 ,减轻了冲刷 ,提高了消能效果 ,经 5个洪水期的考验 ,运行情况良好 。
3.
There exists many defects during the design and construction of seepage control system in temporary sward cofferdam such as difficulty of drilling, slow progress, difficulty in making sure quality and so on.
由于传统临时草土围堰下防渗体系的设计、施工方法存在成孔困难、进度较慢、质量难以保证等问题。
2) Earth-rock cofferdam
土石围堰
1.
The blasting method for notch of the earth-rock cofferdam antiseepage wall at the second stage of chinese Three Gorges Project, the measurement results of water hammer wave are presented, the influential factors of affecting the intensity of water hammer wave are analyzed, the control opf explosive dose of notch and protection method are put forward.
概述三峡二期土石围堰防渗墙槽孔爆破方法 ,列出其水击波测试成果 ,分析影响水击波强度的因素 ,提出槽孔爆破药量控制和防护方法的建议。
2.
Dabu power-plant had been successful in applying anti-leakage new technology of high pressure spraying guniting for earth-rock cofferdam on the blanket of gravels, which shortened construction period with good anti-leakage effect and obvious economic benefit.
大埔水电站应用高压喷射灌浆防渗技术在砂砾石覆盖层上进行土石围堰获得成功。
3) earth-rockfill cofferdam
土石围堰
1.
Anti-seepage technique for construction of upstream earth-rockfill cofferdams of Goupitan Hydropower Plant;
构皮滩水电站上游土石围堰防渗处理技术
2.
Application of controlled grouting to anti-seepage of earth-rockfill cofferdam;
控制灌浆技术在土石围堰防渗处理中的应用
3.
Anti-seepage construction of earth-rockfill cofferdam for Yinpan Hydropower Station
银盘水电站土石围堰防渗施工及评价
4) embankment cofferdam
土石围堰
1.
Application of controlled curtain grouting impervious technology in embankment cofferdams;
控制性帷幕灌浆防渗技术在土石围堰中的应用
2.
The impervious technique of high-pressure gunite applied to stage Ⅰembankment cofferdam of the Three Gorges Project was introduced comprehensively.
对高压喷射灌浆防渗技术在三峡工程一期土石围堰中的成功应用作了全面的介绍,详细阐述了其施工布置、施工主要参数、施工程序和施工方法。
5) earth cofferdam
土围堰
1.
Taking one work as example and according to its features the foundation treatment techniques are introduced from earth cofferdam, heavy curtain piles, dewatering, drainage and other aspects, which provides good references for similar works.
结合某工程实例 ,从工程特点、土围堰、支护帷幕桩、降水、排水等方面对该工程地基处理技术进行了详细的介绍 ,对类似工程的施工具有很好的参考价值。
2.
This paper introduces the joint application of high-pressure jet grouted piles and cement soil mixed piled for dealing with seepage of earth cofferdam for dry dock in Rizhao Port.
介绍高压喷射注浆和水泥土搅拌桩防渗加固技术在日照港干船坞土围堰防渗处理中的组合应用。
6) earth-bag cofferdam
土袋围堰
1.
The procedure of construction with earth-bag cofferdam is introduced for the open-cut foundation in deep water and sandy soil with a narrow space at Pier No.
介绍赣龙铁路18标段在苏家坡大桥5#墩场地狭窄条件下,深水砂性土中明挖基础,采用土袋围堰施工过程,对今后同类型的水中基础施工可起借鉴作用。
补充资料：草土围堰
草土围堰
straw and earth cofferdam
连m)方法使用纪50峡等中修可成。。施土逐夭廉、沙河不超的底坡一乞，草牙、岩出比构的稳定围堰需随eaotu weiyan草土围堰(straw and earth eofferd利用麦草、稻草、柳枝和土为主要材料的传统施J构筑的临时挡水建筑物(见施工围堰)。中国广泛翅于黄河、淮河地区的灌溉工程和堵口工程中。20渔年代以后，这种传统施工方法又发展应用于青锈大型水利水电工程施工中。草土围堰可以在流沙筑，是用稻草、麦桔做成草捆、与土料混合堆筑}草捆直径0.5一0.7米，长1.8一2.咪，重约10千吏工中将草捆在水中铺成排，铺一层草捆，填一压渐向前沉放，它具有就地取材、施工简便、成本1结构上适应基础变形，防渗性能好，特别在多沂流上，可发挥其快速闭气的特点。它适用于水沂过5米、流速低于3.5米/秒的河流中。草土围堰宽约为堰高的2一3倍，按稳定要求核定，内外边般在1:0.25一1:0.5左右。每方土用草75一90千二土体的容重约1，1吨/米“，稳定计算时草与砂卵二石间的摩擦系数分别采用0.4和0.5，草土体的这降不宜大于0 .5。草土围堰的接头，尤其是软硬绍连接，至关重要。采用粘土心墙式的草土围堰转可靠，拆除时可在堰上开槽放水，水流很快可把冲走。草土围堰的缺点是沉陷量为堰高6一7%，时填补，且草料易于腐烂，寿命一般不超过2年 (葛文月
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参考词条