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jacking
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  顶进
     Based on this case, a creative method of jacking culvert box within pipe roof is presented, otherwise called RBJ construction method (Roof-Box Jacking Method).
     结合工程实际,提出了创新的管幕结合箱涵顶进的施工工法-RBJ工法(Roof-Box Jacking Method)。
     An argumentation is given to the feasibility of demolition by blasting of two frame bridges (5 5 m-9 m-5 5 m), and after that, jacking in two new frame bridges in original locations (14 5 m-13 0 m-13 0 m-14 5 m).
     论证秦皇岛东港路框架立交桥 (以下简称“东港路桥”)采用爆破工艺 ,拆除既有 2座 5 5m 9m 5 5m框架桥 ,同时在原位顶进新设的 2座 14 5m 13 0m 13 0m 14 5m四孔框架桥技术方案的可行性。
短句来源
     Jacking construction method of on-site prefabricated reinforced concrete box structure
     现场预制钢筋混凝土箱体结构顶进法施工
短句来源
     CONSTRUCTION TECHNOLOGY FOR JACKING WORKS OF LARGE SPAN BRIDGE
     大跨度桥顶进施工技术
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     Discussion on waterproofing design in box culvert jacking plus pipe curtain method
     管幕法箱涵顶进施工工艺的防水设计探讨
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  “jacking”译为未确定词的双语例句
     3.Calculation of jacking force;
     3 顶力计算 ;
短句来源
     TX-1 PROGRAMMING SYSTEM FOR GRAPHIC JACKING
     TX-1图形式套料编程系统
短句来源
     Analysis and Calculation during Pipe Jacking
     顶管施工中若干问题的分析与计算
短句来源
     TBS2200 earth pressure balancing pipe jacking with great cutter head
     TBS2200大刀盘土压平衡顶管机
短句来源
     Design of Jacking of Φ2500 Fiber Pipes with Sand on Nanzhou Road
     南洲路Φ2500玻璃纤维夹砂管顶管设计
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  相似匹配句对
     control of jacking direction;
     管节接缝:顶进方向控制;
短句来源
     Hydraulic jacking flat bridge
     液压顶升平桥
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  jacking
Pile driving by jacking under reconstruction conditions
      
Experimental investigations of horizontal vibratory impact jacking of tubes
      
Eighty MBA students visited either a real commercial site or a deceptive copycat ("page-jacking") site.
      
Pipe jacking, in its traditional form, has occasionally been used for short railways, roads, rivers, and other projects.
      
Slurry pipe jacking was firmly established as a special method for the non-disruptive construction of the underground pipelines of sewage systems.
      
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This paper presents the design and process of construction of a continuous prestressed concrete box girder railway bridge erected by incremental launched method with a steel truss as a launching nose. This is the first one of railway bridge in China to have employed this method of construction. Calculations of stresses are shown and process of construction has been well illustrated. From experience obtained through design and construction we observed: 1)This launching method of construction has certain advantages,...

This paper presents the design and process of construction of a continuous prestressed concrete box girder railway bridge erected by incremental launched method with a steel truss as a launching nose. This is the first one of railway bridge in China to have employed this method of construction. Calculations of stresses are shown and process of construction has been well illustrated. From experience obtained through design and construction we observed: 1)This launching method of construction has certain advantages, as it is easier to construct in the field, less equipments are required and no scaffolding is needed. It proves to be a more favourable construction method for prestressed girder of spans 30~60meters long. 2) Using this method to construct continuous prestressed concrete girders, special attentions must be paid to keep the bottom face of the girder sections in plane, and to maintain the desired elevations of the supporting points. In design it is necessary to have a certain factor of safety for the whole launching process. 3) To meet the requirements to push forward, the sliding base and sliding plate should be further improved. 4) By selecting a suitable site behind the abutment as casting yard,the casting and launching of girder sections can go on simultaneously, and as a result the advantages of the launching method would be more evident. 5) In order to utilize the equipments more efficiently it is better to install the jacking devices at different places, rather than to install them on the abutment only.

本文介绍了我国铁路上第一座采用顶推法施工的预应力混凝土箱形连续梁的设计和施工,顶推时使用了拆装式导梁。通过该桥的实践,作者认为:1)顶推法具有便于现场制造,设备简单,节省支架等独特的优点。对于跨度30~60米范围內的预应力混凝土梁来说,是较适宜的施工方法;2)采用顶推法施工应对梁底的平整度及控制支点标高特别加以注意,设计时应对整个顶推过程的检算保留适当的安全储备;3)作为使梁体在顶推过程中滑移的滑道、滑块应加以研究改进,使适应顶推的要求;4)在台后选择制梁场地,采取边灌筑梁体,边顶推的方案将更能充分发挥顶推法施工的优越性;5)对顶推设备以采用分散顶推较集中顶推为佳。

After the completion of construction of a deep water pier in a port there appeared progressively some traces of damage in its structure, and it was soon observed that the piles were deformed and cracked. In order to explore the causes which had induced those damages, a comprehensive program of observations and experiments was conducted in the field, and the following conclusions were obtained. 1. The damage of the pier structure was caused primarily by the differential settlement, and the effect of the lateral...

After the completion of construction of a deep water pier in a port there appeared progressively some traces of damage in its structure, and it was soon observed that the piles were deformed and cracked. In order to explore the causes which had induced those damages, a comprehensive program of observations and experiments was conducted in the field, and the following conclusions were obtained. 1. The damage of the pier structure was caused primarily by the differential settlement, and the effect of the lateral thrust of the soil was not important. 2. The differential settlement of the pier was produced mainly due to the difference of the compression of soil between the front side and the rear side of the pier. 3. There was probably some lateral deformation of soil in its ea- rly stage, but it did not develop remarkably afterward. Accordingly, a repairing project was proposed which consisted of two main remedies; (1) to install vertical piles by the non-vibrative jacking method in place of all broken and unbroken inclined-to-river raking piles; (2) to supplement long piles under the frontal platform of the pier with all the tips of piles of this part resting on the same bearing stratum. The pier had been repaired according to the above-mentioned pro- ject, and since then there was no problem ever happened in service during a period of more than ten years.

某深水码头在建成后不久即出现基桩变形和断裂等损坏现象。为了分析损坏原因,进行了现场观测、试验研究,经过将近一年的工作,得出下述结论:1.码头结构损坏主要是由差异沉降引起的,土体水平挤压的影响不大;2.差异沉降主要是由码头前后方土体压缩量不同而产生的;3.土体在早期可能有一定的水平位移,后来已不再有显著发展。根据以上的原因分析,提出的修复方案主要包括两项:(1)利用无振动压桩法补设直桩,以替换已断的和未断的全部向河斜桩;(2)在码头部分增设长桩,使其基桩桩尖均达到硬土层。码头按照上述方案修复后,经过十多年使用,未发现任何问题。

This paper describes the testing results of determining the deformation characteristics of rock masses by radial jacking tests conducted in two hydroelectric projects,Yingxiuwan and Yilihe III. The influence of the loading length on the extent and depth of deformation was investigated. It indicates that the Measured rock deformation should be modified with formula(3) ,when the loading length is less than three times the diameter of the test tunnel.Meanwhile the validity of the principle of superposition...

This paper describes the testing results of determining the deformation characteristics of rock masses by radial jacking tests conducted in two hydroelectric projects,Yingxiuwan and Yilihe III. The influence of the loading length on the extent and depth of deformation was investigated. It indicates that the Measured rock deformation should be modified with formula(3) ,when the loading length is less than three times the diameter of the test tunnel.Meanwhile the validity of the principle of superposition is studied in connection with the feasibility of using elastic theory in rock mechanics.In the present paper a comparison between the results obtained from whole-sectional loading tests and partial loading tests(the latter is equivalent to the plate bearing test in an exploratory adit)indicates that in the latter cases the effect of the periphery of the test tunnel should be considered and calculated according to formula(5).

本文简要介绍映秀湾和以礼河(三级)两水电站用径向千斤顶法测定岩石变形特性的试验研究成果.文中探讨了加压段长度对变形范围和深度的影响,指出当加压段长度小于三倍洞径时测定的岩石变形直按式(3)修正;同时研究了岩石变形的叠加性等,从而阐明弹性理论在岩石力学中的实用性.此外,文中还对比了全断面和局部加压(相当于平洞内承压板法)成果之间的关系,指出后者必须计及洞周边的影响,并按式(5)计算.

 
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