查询词典 wind tunnel

One is the Pinglin Pilot tunnel with a diameter of 4.8m and a length of 12.9km, and the other is called the Shihlin Headrace tunnel with a diameter of 4.53m and a length of 5.5km.

士林水力工程头水隧道贯入率随岩体分类之良窳而渐次降低(2.5～1.9m/hr)，机具利用率亦由四成以上降至三成左右。

Methods:Fourteen patients with acute carpal tunnel syndrome were treated with surgical operation.During the operation,we cut the transverse carpal ligament,cleaned out the hematocele and inflammatory exudates in the tunnel,thoroughly released the nerve adhesion and the compression of median never.

对14例急性腕管综合征患者的手术方法进行分析总结，手术主要是切开腕横韧带，清除积血和炎性渗出物及致压物，解除粘连，彻底松解正中神经和血管受压。

Finally, established engineering geologic model using advanced FLAC~(3D) according to engineering geologic condition of Shanggongshan tunnel, and modeled the influence to TBM driving of buried depth, hypsography and faults fractured zone. Studied the rule of stress redistribution and distortion after tunnel excavation.

最后，以上公山隧洞TBM开挖为例，采用先进的FLAC~(3D)软件建立相应的工程地质模型，分别对埋深、地形起伏和断层破碎带对TBM正常掘进的影响进行了数值模拟，研究了隧洞开挖后围岩的应力重分布和变形规律。

After further study of tunnel support influencing factors, this paper puts forward the ideal of integral designing of tunnel support made by horizontal jet grouting.

对拱棚支护效果的影响因素进行了深入研究，提出水平旋喷桩拱棚整体设计思想。

The technology and quality of tunnel inwall decorating is related to the service performance of tunnels such as the comfort degree of travel,refractorily,moisture-resistance,frost-resistance and hazard-resistance,and the cost of maintenance in operational period,thereby it is an important tache which can not being neglected in tunnel construction.

隧道内壁的装饰技术和质量关系到行车的舒适度、耐火、防潮、防冻、防灾等使用性能以及营运期间的养护维修成本，是隧道建设中不容忽视的一个重要环节。

A laboratorial local tunnel monitoring and control system is designed for the simulative debugging of tunnel local monitoring and control.

摘要为了对隧道现场监控进行模拟调试，设计了一个实验室隧道现场监控模拟系统。

We developed two kinds of new products for low-power and high-resolution mine shallow seismograph, mine geology detector and mine tunnel predictor. By field experimental verification, they can solve effectively the detecting problem of small geological structure and coal seam thickness around underground coal mine tunnel. Their performance and function of reached or exceeded the level of domestic similar products, and their power consumption (≤4W) is lower than the advanced high-resolution shallow seismographs at home and abroad.

开发出两款低功耗高分辨率矿井浅层地震仪产品——矿井地质探测仪和矿井巷道超前探测仪，通过现场试验验证，其可有效地解决煤矿井下巷道四周浅层地质小构造勘探和煤层厚度探测问题，仪器性能和功能达到或超过国内同类产品水平，且仪器的功耗(≤4W)小于国内外先进的高分辨率浅层地震仪产品

In order to predict the engineering and hydro-geological conditions, Positioned along the tunnel alignment/axis on the surface with a long array, super power-supply High density electrical resistance exploration system To prevent engineering accidents from occurrence and to reduce mudflow, water gushing providing the tunnel construction with scientific and reliable grounds.

在公路隧道工程建设过程中，为设计和施工风险，对于埋深大、工程地质条件复杂的隧道，在地表沿隧道轴线采用长排列、大功率供电的高密度电法系统进行视电阻率成像探测，能科学地指导设计和施工，对不良地质段地段提前采取预防措施，能避免和减少塌方、涌水等地质病害的发生，可缩短工期和节约投资。

In this paper, Newton iteration formula for computing normal depth and critical depth was put forward by mathematical transformation of uniform flow equation and critical flow equation of circular section tunnel. Then, the relationship between the corresponding central angle and the introduced parameters was analyzed. An approximate formula for angle was obtained according to optimal uniform approximation principle. Using this approximate formula as initial value of iteration formula, a direct formula for calculating normal depth and critical depth of circular section tunnel was established after its first iterative.

该文通过对圆形断面均匀流方程与临界流方程的数学变换，分别得到其正常水深与临界水深的牛顿迭代公式，同时，通过对正常水深与临界水深对应的中心角与引入参数之间关系的分析及数值计算，利用最优一致逼近原理分别得到了正常水深与临界水深对应中心角的近似计算式，并以此近似计算式为初值，用迭代方程进行一次迭代得到了圆形断面均匀流水深与临界流水深的直接计算公式。

According to the most unfavorable fire scenario for safety evaeuation, the AEST can be obtained through the spread of fire and smoke spread simulation. And the REST of different staff loads are calculated by empirical formula method. Through contrasting two times, whether evacuation passage setting can meet the evacuation requirements is confirmed, and then solutions are proposed. Then highway tunnel fire cause is discussed by Fault Tree Analysis method, and the effective measures to reduce the probability of tunnel fire are reducing the number of flammable materials and using fire-retardant or noncombustible materials for inner decoration are obtained.

以厦门金山寨隧道为例分析火灾时人员的安全疏散，针对隧道内最不利人员安全疏散的火灾场景进行分析，通过对火灾蔓延、烟气扩散进行模拟获得可用的人员安全疏散时间AEST，并用经验公式法计算不同的人员荷载下必需的人员安全疏散时间REST，对比两个时间，判别当前疏散通道的设置是否满足人员疏散要求，并对不满足安全疏散要求的工况提出解决方案。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。