It is shown that the ground settlement produced by middle zone is greater because of double disturbance during parallel pipe jacking construction.
分析表明，水平平行顶管施工时由于中间区域受到双重扰动，会产生较大的地面沉降。
It shows that the ground settlement produced by middle zone is greater because of double disturbance during parallel pipe jacking construction.
研究结果表明，水平平行顶管施工时中间区域受到双重扰动，产生的地面沉降较大。
In construction of pipe jacking, the wall of working shaft and soil body behind the sidewall offers enormous supporting force to a lift.
在顶管施工中，千斤顶的支座需要巨大的反力支持，这些反力是由工作井的侧壁以及壁后土体提供的。
Glass fibre reinforced plastic mortar pipe(Centrifugal casting process)is introduced to be as jacking pipe material used in the design and construction of one jack engineering project.
玻璃纤维增强塑料夹砂管（离心浇铸工艺）作为顶管管材运用于顶管工程中的设计、施工介绍。
The construction of Pipe Jacking is beset with difficulty due to the large propulsive force for several years.
大口径长距离顶管施工顶进推力过大是困扰顶管施工多年的技术难题。
For the case of safety, its construction will adopt pipe-roof culvert box jacking method.
为慎重起见，拟采用管幕保护下的顶进法施工。
This paper introduces the epicyclic reduction arrangement applied in cutting drive mechanism in pipe jacking, analyses the construction and characteristics of epicyclic reduction arrangement.
介绍顶管掘进机截割传动装置所采用的行星齿轮减速器，论述行星齿轮减速器的结构特点。
According to an engineering case, the paper introduces the design and key points of construction of pipe-jacking techniques.
文中结合实际工程，介绍了人工挖土顶管方法的设计与施工及关键施工技术要点。
With a practical project, authors state application status of the pipe jacking method in construction of contact tunnels of a subway shield zone tunnel.
从工程实例出发介绍顶管法在地铁盾构区间隧道联络通道施工中的应用情况。
At present the large diameter slurry pipe jacking is the preferred construction method in project of urban water supply and drainage pipe and electric power pipe.
目前，大直径泥水平衡顶管掘进已成为城市给排水水管、电力管线工程等首选的施工方法。
Pipe jacking construction disturbs soil inevitably, which would results in soil deformation and does harm to its surroundings.
顶管施工对土体扰动是不可避免的，土体变形是土体受扰动的结果，而土体变形则会对周围环境造成危害。
Finally, several control measures are proposed to avoid failure for long-distance linear and curvilinear pipe jacking construction.
提出了长距离直线和曲线顶管施工防止管道失稳的控制措施。
The deformation of ground surface during the construction of curved pipe-jacking is studied with 3d finite element methods.
通过建立三维有限元模型，研究了曲线顶管施工过程中地表的变形规律。
As is shown in analytical calculation, ground deformation induced by pipe jacking construction is three-dimensional and changing with the jacking-in of shield.
算例分析表明，顶管施工引起地面产生三维变形，随着掘进机的顶进而不断产生变化。
Guang zhau the Undergroumd 2nd Line will pass through Hua nan Express Way. During construction communication of the express way should not be cut off. Pipe jacking method is suggested.
广州地铁二号线要穿越华南路，华南路是一条高速公路，施工时地面交通不能中断，本文建议采用顶管法穿越。
Guang zhau the Undergroumd 2nd Line will pass through Hua nan Express Way. During construction communication of the express way should not be cut off. Pipe jacking method is suggested.
广州地铁二号线要穿越华南路，华南路是一条高速公路，施工时地面交通不能中断，本文建议采用顶管法穿越。
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