查询词典 wind tunnel

According to several examples of underground tunnel excavation, the influences of construction machinery on the tunnel excavation method are analyzed.

文章摘要：在钻爆法开挖大型地下洞室的过程中，施工机械的配置情况在一定程度上决定了地下洞室的施工程序和开挖方法。

Chaozhou in Guangdong and the two main producing areas in ceramics have a large production base, to achieve large-scale production capacity, with a leading world-class fully automated tunnel kiln SITI Italy and Australia generic automatic tunnel kiln, shuttle kiln univac domestic shuttle computer a series of kiln production equipment, construction area of 150,000 square meters, more than 2,000 employees.

在佛山及潮州两大陶瓷主产区均拥有大型生产基地，实现产能规模化，拥有领先世界水平的意大利SITI全自动隧道窑及澳洲通用全自动隧道窑、通用自动梭式窑、国产电脑梭式窑等一系列生产设备，建筑面积达15万平方米，员工2000多人。

When excavating width of block of the third layer along tunnel above tunnel increasing to 6m from 3m and excavation time not shorten, calculation results of upheave on the same position increase 2%.

3基坑第三层沿隧道纵向分段开挖的段宽由3m增加到6m后，如果开挖所花时间相同，隧道上浮量仅增加约2%。

Through the research of direct search method based on 3D FEM, and its application for the tunnel slope stability analysis, the objectives of this work in this paper are as follows:1. The dynamic programming as well as its application for 3D side slope stability analysis is studied. With the introduction of graph theory concept, one kind of glide pattern of 3D slope is constructed, and the critical slip surface with smallest safety factor is searched with the aid of one auxiliary function including safety factor;2. Using the C++ programming language, the 3D slope stability analysis and the direct search procedure is established, and this method is testified applicably by some contrast analysis, also some influence factor in analysis is discussed;3. Integrated with the different actual situation in tunnel slope, considered its excavation, timbering and rain infiltration, its stability influence and rule is researched used this method, also some processing measure is proposed.

本文通过对三维有限元直接搜索法的研究，并将其应用于隧道边坡的稳定性分析中，主要的研究内容有：1、研究了动态规划原理及其在三维边坡稳定性分析中的应用，引入图论概念，构筑出一种边坡三维滑裂面的滑动模式，借助一个包含安全系数的辅助函数并通过动态搜索求得临界滑裂面与最小安全系数；2、采用C++程序设计语言，编制出边坡三维稳定性分析以及直接搜索法的程序，通过一些算例的对比分析，验证本文方法的适用性，并讨论了三维分析中的一些影响因素。3、结合隧道边坡的不同实际情况，考虑施工开挖过程、衬砌结构及降雨渗流等方面的因素，利用本文方法研究对其稳定性的影响和规律，并提出处理措施

The analytical results are advisable and as follows:(1) The concepts of tunnel circulation measurement of one-kilogram explosive and tunnel circulation measurement of one-meter length of blasthole are put forward.

通过对实验结果的分析，得到如下结论：(1)提出单位炸药循环进尺和单位炮眼循环进尺的概念，这2个概念可为巷道爆破设计的优劣提供评判标准。

Dapingzi highway tunnel is located in sound potash granite covered by debris.The overburden of the tunnel is relatively thin and the bias is great. In entrance zone,slope surface is covered with thick deluvial,colluvial,alluvial debris,resulting in difficult tunneling condition.

锦屏电站专用公路大坪子隧道岩体为钾长花岗岩，岩体完整性较好，表层为块碎石土，但隧道埋深较浅，偏压严重，进洞口段边坡表面覆盖有较厚的坡崩冲积块碎石土，成型进洞困难。

In combination with tunnel pass through Nanjing railway station,the monitor techniques of metro tunnel pass through the working railway are studied and elements concerning safety are analyzed.The practical monitoring procedure is adopted to guide the construction,ensure the conductio...

该文结合过站区隧道下穿既有轨道的具体工程实践，探讨了地下隧道穿越既有轨道的施工监测技术，分析了影响施工安全的各种因素，提出了切实可行的监测方案，用于指导工程实践，保证了地下隧道施工及京沪铁路正常运行，获得满意的结果，为同类型工程提供有益的参考。

The morphologic change of the cubital tunnel was the anatomical pathogeny of the cubital tunnel syndrome.

肘关节屈曲时肘管解剖形态的变化是产生肘管综合征的解剖基础。

Some detrimental flow such as half pressure flow will appear when stream go through the tunnel. Therefore, it can improve stress condition, increase energy dissipation effect and reduce cost of construction to set up energy dissipater at inlet of a tunnel.

在过流时隧洞中可能会出现明满流交替等一系列对结构安全不利的水流现象，因此，在隧洞进口处合理设置洞内消能工，可有效改善隧洞结构的受力状况及消能效果，同时降低工程造价。

Finally , author analyzed and compared these two schemes on the aspects of technology and economy according to the wholly structure optimizing process and outcome, and recommended the final scheme of the right banks diversion tunnel of Gongboxia Power Station reconstructed into a horizontal swirling flow internal dissipater tunnel.

最后根据整个体型优化过程与结果，从技术与经济对比分析两个方面，对公伯峡右岸旋流泄洪洞进行了选型研究与方案比较，提出了公伯峡水电站右岸旋流内消能泄洪洞的最终推荐方案。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"