开挖隧道

The displacement loading finite element method is used to simulate tunneling, and the analogue method and computation formula are also brought forward. Moreover, a reciprocal calculating program, DLFEA-TGM, is developed. The tunneling-induced ground movement and characteristic of stress variation are analyzed.

利用位移加载方法模拟隧道开挖，提出了模拟方法和计算公式，开发了相应的计算程序DLFEA—TGM，分析了隧道施工引起的地层位移及应力变化特点。

A reciprocal FEM analogue method is brought forward, by means of taking into account the interaction of tunneling, the peripheral soil and underground utilities. And the calculating program, DLFEA-TPR, is developed to calculate the tunneling-induced deformation and stress of adjacent utilities.

考虑隧道开挖与周围土体以及地下管线的相互作用，提出了相应有限元模拟方法，开发了隧道施工引起邻近地下管线变形及应力的计算程序DLFEA—TPR。

The effect of special structural and excavating way to the blasting vibration should be taken into account and be studied.

连拱隧道的特殊结构形式和开挖方式对爆破震动效应有着一定的影响，因此，有必要对连拱隧道情况下的爆破振动效应进行研究。

Based on the optimized solution of inversion problem,the information inversion theory was taken for inversing the blasting parameters of highway tunneling.

在研究逆问题优化解的基础上，将信息化反演理论引入到隧道爆破开挖的控制参数反演问题中，建立隧道围岩控制爆破参数的反演模型。

According to the research on the displacement in Y direction, shear stress, plastic zone and vector of displacement of tunnel without lining after excavation of the tunnel, the characteristics and failure mechanism of tunnel are summarized in the state of the interface with one side is strong and the other is weak.

通过对开挖后的无衬砌隧道进行竖向位移、剪切应力、塑性区及围岩达到屈服状态时的位移矢量分析研究，总结出结构面两侧岩体上强下弱或下弱上强的状况下，围岩的力学特性和破坏模式；对隧道的选址、支护结构的设计和施工具有广泛的借鉴意义与指导作用。

On the basis of the present construction situation of Sinitic mountain tunnel method, the new concepts of ahead displacement, releasing displacement in excavating, early displacement and the later displacement, which are the new division from the tunnel excavation displacement three-dimensional effect, have been proposed.

结合山岭隧道新奥法施工现状，首次提出了隧道位移空间效应的"先期位移"、"开挖瞬时释放位移"、"前期位移"和"后期位移"的新概念。

By use of measured data in situ,the deformability and hydraulic properties are studied by numerical analysis methods.

进行了隧道开挖卸荷的有限元模拟计算，讨论了开挖方法对围岩扰动带的影响。

The Tuzla tunnel was excavated mainly in fault zones, shale and limestones using the conventional and shielded tunnel boring machine TBM methods.

中文2800字，英文2100个摘要 Tuzla隧道大部分位于断层带上，主要是页岩和石灰岩，采用传统的开挖方法TBM法开挖。

During the construction of a shallow asymmetry double-arch tunnel,the right tunnel near the inner of mountain has been excavated firstly,and then the left tunnel near the exterior of mountain excavated.

某浅埋偏压连拱隧道中导洞开挖中隔墙浇筑后，对靠近山体内侧的右洞先行开挖和支护，再进行靠近山体外侧的左洞的开挖，右洞二衬出现部分地段纵向开裂。

A large 3D numerical model of forked tunnel is set up and different construction processes are simulated by D-FEM. Through analyzing displacement, stress and damage yield zone of tunnel surrounding, the optimum construction process that left tunnel excavates ahead of right tunnel 32 m is determined, left tunnel and right tunnel excavate synchronously is proposed.

建立了分岔隧道大型三维数值模型，采用弹塑性损伤有限元D-FEM模拟了分岔隧道不同的施工过程，通过分析施工过程中隧道围岩的位移、应力和损伤屈服区，最终确定采用左洞超前右洞32m，左右洞同步开挖的施工方法。

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如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。