1) boxed cofferdam
吊箱围堰
1.
The design and construction of boxed cofferdam of the Zhujiang bridge;
珠江特大桥吊箱围堰设计与施工
2.
The double-wall steel boxed cofferdam for pylon pier No.
武汉天兴洲公铁两用长江大桥3号主塔墩双壁钢吊箱围堰集钢护筒插打定位、导向,钻孔作业平台,承台施工功能于一体,可根据施工水位依靠围堰自身浮力上下浮动。
3.
This paper briefs the fabrication and floating processes of the boxed cofferdams used for construction of pier bases of Paksey Bridge in Bangladesh, and describes the construction method for installation, bottom sealing and dismantling of the cofferdams without diving work.
简述了孟加拉国帕克西桥吊箱围堰的制造、浮运、以及在无潜水工作业的条件下吊箱围堰的安装、封底、拆除施工方法。
2) steel boxed cofferdam
吊箱围堰
1.
In the construction of pile cap of the part of the foundation,the construction scheme of double-wall steel boxed cofferdam plus anchorage without positioning by guiding barges was adopted.
承台施工采用双壁钢吊箱围堰+锚锭无导向船定位方案,利用既有施工水域临时定位钢围堰并接高顶节,利用定位后的围堰内支撑桁架作为钻孔桩施工平台,合理安排工序,有效保证工期。
2.
Taking the construction of the elevated pile caps in deep water for main piers of Minjiang River Bridge on the newly-built Fuzhou-Xiamen Railway as an example,this paper presents the optimal design of the steel boxed cofferdam structures on the basis of mechanical analysis of the cofferdams subjected to different load cases.
以新建铁路福厦线闽江特大桥主墩深水高桩承台施工为例,介绍通过钢吊箱围堰各工况的受力分析,进行优化设计钢吊箱结构。
3) suspended steel box cofferdam
钢吊箱围堰
1.
The construction simulation analysis for suspended steel box cofferdam;
钢吊箱围堰施工仿真分析
2.
Construction technique and method of suspended steel box cofferdam are introduced in conjunction with the construction of Anqing Highway Bridge over Yangtze River.
钢吊箱围堰以其诸多优点在大型桥梁施工中得到了广泛应用。
4) steel boxed cofferdam
钢吊箱围堰
1.
This paper deals with the construction techniques for launching of the bottom tier of the huge steel boxed cofferdam for Pier No.
介绍南京大胜关长江大桥7号墩底节钢吊箱围堰下水施工技术。
2.
At present, steel boxed cofferdam has applied in the construction of high pile cap in deep water widely.
钢吊箱围堰目前已被广泛应用于深水高桩承台施工中。
5) steel suspending cofferdam
钢吊箱围堰
1.
The main pier of the Beijiang River Bridge in the south section of the west part of Guangzhou Orbital Highway was designed as integral elevated pile cap,using steel suspending cofferdam construction technology.
国道主干线广州绕城公路西环南段北江特大桥主墩设计为整体式高桩承台,采用钢吊箱围堰施工。
6) double-wall steel boxed cofferdam
双壁钢吊箱围堰
1.
This paper presents the study of construction scheme for large-scale deepwater foundation, including the alternative of locate mode for double-wall steel boxed cofferdam, design and arrangement of heavy anchorage system.
介绍大型深水基础施工方案的研究,包括双壁钢吊箱围堰定位方案的比选、重型锚碇系统的设计和布置等。
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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