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拱顶位移
相关语句
  vault displacement
     Studies on the Estimation Methods of Vault Displacement of NATM Construction
     新奥法施工隧道拱顶位移估算方法的研究
短句来源
     This article elaborates the monitoring methods of vault displacement of NATM construction. Based on a great deal of practical observation data, it brings out the estimation formula of vault displacement of NATM construction. 
     阐述了隧道新奥法施工拱顶位移的监测方法,以大量实际监测数据为依据,给出了新奥法施工隧道拱顶位移的估算公式。
短句来源
  “拱顶位移”译为未确定词的双语例句
     The results of the study show that the support pressure of rock mass continuously reduced with increasing of displacement of arch crest after excavation and first support of soft rock tunnel. The maximum of predicting displacement is occurred in arch crest of the tunnel.
     研究结果表明 ,软岩隧道开挖和一次支护后围岩支护压力随拱顶位移增加而连续减小 ,预测的最大位移均发生在隧道拱顶。
短句来源
     However, under the same support pressure, displacement of arch crest considering soft rock rheological property is larger than that of no considering soft rock rheological property.
     但是 ,在同样支护压力下 ,考虑软岩流变特征的收敛曲线的拱顶位移要大得多 ,必须及时设置二次支护。
短句来源
     This paper mainly introduces algorithmic procedure of FLAC,meshed partition,data importation and resulting analysis,the stability of surrounding rock is judged by the stress,displacement and maximal unbalanced force and the change rate of displacement of arch with the steps,taking the Tieshanping tunnel as an example.
     作者主要介绍了FLAC算法流程、网格划分、数据的输入及结果的分析,并结合铁山坪隧道实例,分别就应力、位移和最大不平衡力及拱顶位移随时步的变化率来判断隧道围岩的稳定性。
短句来源
     In this context,authors of the paper,considering the Highway Tunnel Construction Code,adopted FEM to compute the crown displacements and principal tensile stresses in arch crown under different overburden thicknesses of a subaqueous tunnel.
     文章针对目前情况提出了采用有限元的求解方法,并结合公路隧道施工规范,模拟了拟建的重庆朝天门两江隧道在不同隧道覆盖层厚度时的拱顶位移和拉应力的分布及大小。
短句来源
  相似匹配句对
     Studies on the Estimation Methods of Vault Displacement of NATM Construction
     新奥法施工隧道拱顶位移估算方法的研究
短句来源
     AN ANALYSIS OF DISPLACEMENT
     位移分析
短句来源
     DISPLACEMENT CURRENT
     位移电流
短句来源
     It is found that the maximum radial displacement take places at the arch and the sidewall.
     结果表明:周边最大径向位移发生于拱顶,其次为腰部;
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This article elaborates the monitoring methods of vault displacement of NATM construction. Based on a great deal of practical observation data, it brings out the estimation formula of vault displacement of NATM construction.

阐述了隧道新奥法施工拱顶位移的监测方法,以大量实际监测数据为依据,给出了新奥法施工隧道拱顶位移的估算公式。

According to the characteristics of engineering geology and support design in weak rock tunnel, a finite difference method for fast lagrange analysis code(FLAC) was applied to simulate the deformation characteristics and convergence curves of weak rock tunnel in the paper.Then the mechanism and effect of first support and second support in composite support were discussed. The results of the study show that the support pressure of rock mass continuously reduced with increasing of displacement of arch crest after...

According to the characteristics of engineering geology and support design in weak rock tunnel, a finite difference method for fast lagrange analysis code(FLAC) was applied to simulate the deformation characteristics and convergence curves of weak rock tunnel in the paper.Then the mechanism and effect of first support and second support in composite support were discussed. The results of the study show that the support pressure of rock mass continuously reduced with increasing of displacement of arch crest after excavation and first support of soft rock tunnel. The maximum of predicting displacement is occurred in arch crest of the tunnel. However, under the same support pressure, displacement of arch crest considering soft rock rheological property is larger than that of no considering soft rock rheological property. Therefore, the second support must be established on time.

结合软弱围岩隧道工程地质和支护设计特点 ,应用有限差分方法 ( FLAC)模拟研究了软岩隧道受力变形特征和围岩收敛曲线 ,并分析了复合支护结构中一次支护和二次支护结构的作用机理及作用效果。研究结果表明 ,软岩隧道开挖和一次支护后围岩支护压力随拱顶位移增加而连续减小 ,预测的最大位移均发生在隧道拱顶。但是 ,在同样支护压力下 ,考虑软岩流变特征的收敛曲线的拱顶位移要大得多 ,必须及时设置二次支护。另外二次支护结构还将起到承受流变压力的作用

The long rock road tunnel named Dafengyakou in Yunnan province, a one-way and double lane tunnel with disjunctive up and down lines,is constructed by NATM. The tunnel is about 3 300 mlong. After analyzing the monitoring data,such as the convergence, crown displacement,internal displacement,internal force of the initial support, the laws for the changes of the internal force and deformation of the surrounding rocks and initial support including the creep of rock with time and excavation are studied. The creep...

The long rock road tunnel named Dafengyakou in Yunnan province, a one-way and double lane tunnel with disjunctive up and down lines,is constructed by NATM. The tunnel is about 3 300 mlong. After analyzing the monitoring data,such as the convergence, crown displacement,internal displacement,internal force of the initial support, the laws for the changes of the internal force and deformation of the surrounding rocks and initial support including the creep of rock with time and excavation are studied. The creep deformation of sandstone in this tunnel is found to be agreement with the formula put forward by Evans. In the excavation of top and bottom bench,there is a simple linear relationship between the internal displacement of surrounding rocks and the radial distance to the inside of tunnel. During the excavation of top bench,there is also a linear relationship between the displacement rate and the logarithmic value of the distance between the face of top bench and the measured section. It is also shown that the disturbance of excavation of top bench on surrounding rocks is larger than that of bottom bench. The measured contact pressure between the initial lining and surrounding rocks at the crown is smaller than the calculated data by Chinese road tunnel code. The relationship between the internal force after the excavation of top bench and the reciprocal value of the distance between the face and section satisfies the exponential rule. All the obtained conclusions can guide the construction of the rock road tunnel.

按“新奥法”施工的云南大风垭口隧道全长约3300m,为上、下行分离的双洞单向行车双车道,属于长、大岩石公路隧道。通过现场施工量测,在分析了收敛位移、拱顶位移、围岩内部位移及钢支撑内力等大量实测数据的基础上,研究了围岩及初期支护的变形包括岩石蠕变变形、内力随开挖进度及时间变化的规律,讨论了上、下台阶开挖对围岩的影响。研究结论可望为岩石公路隧道施工提供一定的指导。

 
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