隧道效应

The results show that the infinite method is valid in solving problems in infinite domain and thus high precision can be obtained by eliminating the border effect in finite element analysis.

采用具有精确解的无限厚壁圆筒作有限单元法分析和无限单元法分析，通过对这两种分析方法的分析结果的比较得知：无限单元法是解决无限域问题的一种有效的方法，采用这种分析方法进行隧道及地下工程结构分析，可以消除有限单元法所带来的边界效应，从而使计算精度大为提高。

In order to meet the need of our country railroad's development, lucubration of tunnel aerodynamic effect's spread abroad rules and corresponding alleviation measure is very necessary.

为了适应我国铁路发展的需要，有必要对隧道空气动力学效应的规律及其减缓措施进行深入研究。

In the theory and experiment for application, rectifying characteristic, CMR and photoemission of hetrojunction are investigated.

五。在应用的理论和实验探索上研究了氧化物异质结的整流、磁电阻及光电效应；从理论上研究了由三铁磁层组成的隧道电阻效应和结构的关系。

Finally we set up three - dimensional space model to simulate the space effect during tunnel construction , analyze the transaction between the left runnel and the right tunnel , and also analyze the deformation and stability of mid - partition

最后建立了三维空间模型，对连拱隧道开挖时的空间效应、左右洞的相互影响，以及中隔墙的变形和稳定性进行了模拟分析。

The calculation show that segments need to take more tensile force under coupling effect.

结果表明：耦合效应下隧道管片需要承担更大的拉力，在设计中应按更不利工况进行配筋。

Another way is to design the tunnels to reduce this effect.

另一种方法是高计一个隧道来减少这种效应。

With the rapid development of road and communication of city, the harm effect that the blast vibration induced by building mass undergrounds or tunnels and digging blast underground structures act on the ground environment, are increasingly remarkable.

随着道路、城市交通事业的迅速发展，大量地铁、隧道的修筑，浅埋地下结构的开挖爆破，由此而导致的爆破振动对地面设施，特别是对城市地面建筑的危害效应越来越显著。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。