1) joint scheme
合龙方案
1.
From the point of internal force and deformation, the influence of girder joint scheme of side span on construction control is discussed.
从受力与变形角度讨论了边跨合龙方案对连续梁桥施工控制的影响。
2) closure
合龙
1.
Construction techniques for closure of PC continuous box girder of Changwang river major bridge;
长弯大桥预应力混凝土连续箱梁合龙施工技术
2.
The confirmation closure jacking force of continuous rigid frame bridge;
连续刚构桥合龙顶推力的确定
3.
For trussed CFST arch bridge, closure temperature influence to internal force and line form of arch on empty steel tube arch state is analyzed, the method of eliminating temperature influence is discussed, and the least square method to calculate jacking force as well as counterweight is proposed.
分析了桁架式钢管混凝土拱桥空钢管在非设计合龙温度下合龙对成拱内力和线形的影响,探讨了消除温度影响的措施,提出了用最小二乘法计算千斤顶顶推力和压重大小的方法与步骤,并以茅草街大桥为例对该方法的计算效果进行了验证,最后根据计算结果对各种调整措施进行了对比分析,结果表明:对于茅草街大桥,合龙温度高于设计基准温度宜采用顶下弦杆与压重相结合的调整措施,合龙温度低于设计基准温度宜采用拉下弦杆与顶上弦杆相结合的调整措施。
3) closing
合龙
1.
During construction of the Bridge,the closing of the side arches was carried out prior to that of the main arch.
缅甸曼德勒大桥结构为刚性拱柔性梁,施工时先合龙边拱后合龙中拱。
2.
The closing of such huge size structure under condition of varying temperatures is indeed a technical challenge.
重庆石板坡长江大桥复线桥主跨(330 m)的103 m钢箱梁段为整体吊装合龙,在温度变化下的大尺寸合龙是技术难度较高的工作。
3.
This paper conducts the calculation,comparison and analysis of closing schemes for the side spans of Guanyang Creek Bridge,and also makes a study of the feasibility of design and construction of closing side spans of continuous rigid-frame and continuous girder structures without using scaffolding at site where the topography is steep or there are high mountain and deep valley.
对官洋溪特大桥边跨合龙方案进行计算比较分析,探讨在地形陡峻、山高谷深条件下,连续刚构、连续梁边跨合龙设计、施工取消现浇支架的可行性,供工程设计、施工参考。
4) closure segment
合龙段
1.
Authors researched mid-span closure segment ballasting methods for prestressed concrete continuous rigid frame bridge,aiming to expatiat the functions of ballasting and discuss the methods of basic ballasting.
针对连续刚构桥中跨合龙段配重展开研究,阐述了配重的作用,讨论了基本配重的方法。
2.
In this paper, the construction of the closure segments and system transformation for the box girders is summarized, which is expected to serve as reference to the constrction of similar works.
东海大桥是我国在建的第一座跨海大桥,其远海段非通航区域采用了70m预应力混凝土箱形连续梁,对箱梁合龙段的施工与体系转换进行了总结,供同类型工程施工时参考。
3.
On the main span and two side spans of the main bridge, there is each one closure segment, 2 m in length, and along with the closing of the spans, the Bridge has completed two time of structural system transformation.
其中跨和2个边跨各设1个长度2m的合龙段,随着边跨和中跨的合龙,结构先后完成2次体系转换。
5) closing installation
合龙安装
1.
The closing installation conditions of steel pylon cross beams have direct influence on the global geometric shape and geometric precision of the pylon.
钢索塔横梁的合龙安装状况直接影响到钢索塔的整体线形和几何精度,横梁合龙安装及其接口的制孔,是钢索塔安装的两个重要环节,其工艺设计和技术措施是安装质量控制的重点工作。
6) closure section
合龙段
1.
Discussion on the span closure section construction in continuous rigid-framed bridge;
浅谈连续刚构桥中跨合龙段施工
2.
Based on engineering practice,the paper introduces in detail the construction technique of abutment on pier top and temporary buttress,the construction technique at 0 section,the construction technology of casting concrete for cantilever and cast-in-situ concrete section for side span and the construction technology at closure section,sums up the key construction technique of conti.
结合该工程实际,对墩顶支座及临时支墩施工技术、0号段施工技术、悬臂浇筑及边跨现浇段施工工艺、合龙段施工工艺等进行了详细的介绍,总结了大桥连续刚构关键施工技术,实践证明这些施工工艺和控制技术是可行的,为以后类似工程提供了借鉴。
3.
But under special condition, the construction of closure section is restricted by time and temperature, the Jiangjun river bridge in Shiyan had to use the construction stiff-traveler as the counterweight of the closure.
在悬浇混凝土桥梁施工中,水箱放水和抛掷沙袋是合龙段施工中两种比较成熟的施工技术。
参考词条
补充资料:合龙
合龙
breach blocking
水流仍可通过,待全部沉厢就位后,在一次合适的平潮期,同时放下闸门,完成合龙。(徐福龄)称为合龙桩。将合龙大缆拉过龙门口,结活扣于两金门占的合龙桩上(图l、。然后用麻绳编结成网称为龙衣。网眼0.15一0.2米见方,网的长宽尺度应与龙门口大致相等,网结成后,用木杆或大竹竿做心,将龙衣卷成捆,并把龙衣的引绳头牵过对岸,这时数人横躺在龙衣上,推卷前进,同时用小绳将龙衣与合龙缆扎紧,随滚随扎,直到对岸。龙衣铺成后,即推放一层秸料,以能上人走动为宜,愈向中间,因为人与料的重量下压,使绳伸长垂成弧形,然后上五花骑马桩,压土袋,如此层层相压,做到一定高度,在两金门占统一指挥同时松绳沉绿入水,并继续加料上土,上五花骑马桩直至压绿到底,把口门堵塞合龙。在用双坝进堵时,应使正坝合龙后,再进行边坝合龙,在水大流急的情况下,用合龙绿合龙,往往由于松绳不匀,会发生卡埔或扭绿现象,如塌压不到底,绿底下流速加大,冲刷河底,如金门占发生蛰动,有功败垂成的危险。i扣一洲亦可采用竹笼装石或铅丝笼装石成枕,按上法进行投.这种枕易于下沉入水。抛枕合龙主要优点是施简单,进堵迅速,比较稳妥,缺点是枕与枕间的空大,漏水较严重,在用双坝合龙时,一般正坝用抛合龙,边坝用合龙缔合龙,以利闭气。 1956年中国江苏省射阳县新洋港截流工程,因汐吞吐量大,口门缩小,河底不断冲深。在进堵归口门先用柴石枕护底,在夏船上施工,夏船一般用组双拼或双组对尾双拼两种组合,施工时在岸上观视距。控制夏船位置,均由河心分向两岸移船倒主利用低水潮时,双组夏船的前船掀第一路柴石枕;船掀第三路柴石枕,抛完后再移船分别补抛二、四路,单组夏船则按控制线依次抛枕,互相紧密衔接(图3),为避免重迭漏空现象,当护底后,趁平潮f用船装石,普遍抛大块石一层,填补柴石枕空隙.期平整,然后用捆厢蹄进占,口门缩窄至107米日抛工隙枕潮么单测虱后两见么以卜 抛枕合龙当口门缩窄,用合龙绿不易堵合时,龙门口可适当放宽至30一60米,进行抛枕合龙,有护底抗冲的作用,捆柳柴石枕的方法,一为散柳柴包石(或淤泥)捆枕;二为柳柴把包石捆枕(见图2)。枕中放置龙筋绳,枕的直径0.8一l米,长10一20米。
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