开挖隧道

The application in highway slope and submarine tunnel proves validity and practicability of the system, which can be of beneficial guidance to analogous projects.

将三维地质建模和可视化技术应用到公路边坡开挖和海底隧道线位地质研究中，证明了该系统的有效性和实用性，并对同类工程具有一定的指导意义。

And the excavation of tunnels and underground engineering which continuously changes in time and space is a dynamic process. Therefore, research on the structural stability of country rock and support is meaningful and of practical significance to highway tunnel excavation.

隧道和地下工程的开挖是一个在时间和空间上不断变化的动态过程，因此对围岩与支护结构稳定性问题的研究具有一定的理论及实际意义。

With the support of National Key Basic Research and Development Scheme, a comprehensive research on segment erector which is used in segment lining for the new surface during shield tunneling is developed.

本文结合国内近年来对盾构开发的迫切需要，在国家重点基础研究发展计划(973计划)的支持下，对盾构掘进设备中用于给盾构开挖后的隧道表面贴上管片的重要部件——管片拼装机进行了详细的分析。

In this paper, the important thing is analysis the function of the pipe umbrella in excavating period.

隧道开挖过程中管棚的作用机理分析是本文的重点，在分析了国内外的研究成果的基础上，提出了管棚的受力模式，并推导出管棚受力条件下的挠度方程。

The finite element method is the main method of tunnel excavating.

有限元法是计算隧道开挖的重要方法。

The fullface curtain grouting technical parameters was determined by onsite test.The main tunnel area grouting reinforcement was 5?m away from the tunnelexcavation contour lines.

基于这种情况，通过现场试验确定了全断面帷幕注浆技术参数，主隧道注浆加固区范围为隧道开挖轮廓线外5？

The present research status of heterotaxy by the excavation of tunnel is introduced, including empirical formula method, numerical method, analytical method and so on.

然后概述了隧道开挖引起地层变位的研究现状，主要包括经验公式法、数值计算法、解析法及其他一些方法。

The research results have showed that the excavating process is a non-linear irreversible process tightly related with stress paths and stress history.

研究结果表明：隧道的开挖过程是和应力路径与应力历史密切相关的非线性不可逆过程。

Integrate the load transfer principle and shearing displacement method to set up the load transfer equation between the pile of soil, using the discrete and fitting methods to solve the equation so as to educe the pile displacement of arbitrary section as well as the analytical solution. Comparing the results with the soil settlement solved by the Mair equation, the relative displacement can be gained.

1结合荷载传递原理和剪切位移法的思想建立隧道开挖作用下的桩土荷载传递方程，采用离散和拟合两种方法来对该一元二次非齐次微分方程进行求解，可分别得到桩身任意截面处的桩体位移以及桩身位移的解析解，并与基于Mair公式求得的地面下任意深度处的土体沉降进行比较，即可求出桩与桩侧土之间的相对位移。

Excavating stability of tunneling in permafrost region is related to deep and shallow stability of wall rock.

多年冻土隧道工程开挖施工的稳定性受深层和浅层稳定的影响。

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

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。