支护结构

The results along the way of tunnel doors radial direction, received through microcosmic analyses and researches about macrosopical model, can be divinable guide when designers chose types of tunnel and plan support structures.

本篇论文基于宏观模型的细观分析研究，得到的沿洞口径向路径的分析结果，更能对设计人员在洞形选择、后期支护结构的设计等方面提出可预见性的指导。

By the method and procedure in this paper, the stress and strain of supporting structure are studied under the condition of different heaped load,excavation depth, excavation separatrix location and soil mass condition.

利用本文的计算方法及程序，分别计算分析了外加荷载不同、开挖深度不同、挖深分界不同、两侧土质不同等四种情况下支护结构的内力和变形。

The rock mass rating, rock mass classification and support systems proposed for fault zones in Tuzla tunnel are insufficient for explaining the deformation and failure mechanisms encountered in the tunnel.

岩石强度等级，岩石类别，支护结构等关于Tuzla隧道的断层带的资料不足以解释隧道的变形，也没有找到一台合适的机械。

The researches about support structures of underground support are mostly in the exploring phase as wall rock often shows discontinuous and ununiformity character.

由于岩石类介质的显著特点为在一定尺度上呈现非连续性和不均匀性，因此，在以上特性下的洞室支护结构研究任然处于探索阶段。

On the safe side, we should use active soil pressure and passive soil pressure to calculate the support strength before T increased. That is RA=EA-EP Among them: RA ………… holding strength EA ………… composite force of active soil pressure EP ………… composite force of passive soil pressure Immediately, flexural torque distribution of enclosure wall can be counted. Mmax is the location of shear force zero. Equivalence beam method abridges. No matter which kind of supporting structure form, the key problem lies in the establishment depth of catch point, severity of support and enclosure wall, penetration depth and pit bottom quality of soil property.

单道锚杆支护结构计算分别采用静力平衡法及等值梁法，根据试算法插入深度t值需先进行假定墙的插入深度确定后来计算支撑力，为了安全起见，可按插入深度增大前的主动与被动土压力合力计算支撑力即 RA=EA-EP 式中：RA …………支撑力 EA …………主动土压力合力 EP …………被动土压力合力随之可求围护墙的弯矩分布，Mmax为剪力为零点的位置，等值梁法的计算略述。

Comparing with other optimization methods, it needs few mathematical requirements, so it appropriates to optimization design of supporting structures for foundation pit.

探讨了深基坑支护结构优化设计方法，详细阐述了遗传算法的基础理论和实现技术。

Based on the theory of two-phase fluids dynamics, the general governing equation is established, which is applied to the fields of seepage, consolidation and deposit. For the first time, the mechanics properties of the soil affected by seepage are studied by the means of experiment. The problems of the modified indexes of mechanics and constitutive relation are solved due to the formulations obtained of mechanics parameter under seepage condition. Applied fuzzy theory and modern project design method, the fuzzy probability model for stability analysis is stetted up; Considered variation of mechanics parameter and curtain effect, the deformation patterns of deep execution are systematically analyzed.

基于两相流理论，推导了适用于渗流、固结和沉积的统一形式的控制方程；试验研究了渗流作用下土的力学性质的变化规律，经综合分析得到力学指标的定量表达式，为工程设计和数值计算中力学参数的确定提供了参考；基于模糊理论和现代工程设计方法，建立了基坑失稳的模糊概率模型，为基坑稳定性预测提供了新的方法；对基坑变形规律作了系统分析，考虑了土性变化和帷幕防渗效果对支护结构变形的影响，得到了较满意的结果。

In these years, more and more soil nailed retaining structures have been used in foundation pit excavations.

近年来土钉支护结构得到了广泛的应用，但相关的理论研究目前均落后于工程实践。

In these years, more and more soil nailed retaining structures have been used in foundation pit excavations.

近年来土钉支护结构得到了广泛的应用，不仅在北方等土层性质较好的地区，在沿海等软土地区也得到了越来越多的应用，但相关的理论研究目前均落后于。。。

Equivalence beam method of many anchor supporting structure.

多道锚杆支护结构的等值梁法。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。