我国属多山国家，长大隧道的出现在所难免。
China is a mountainous country, leading to many long and large tunnels appears inevitable.
长大隧道涌水的发生与地下水和岩土体的特性有密切的联系。
Water inflow in long and large tunnel has intimate relationship with the feature of groundwater and rock mass.
研究成果可以应用在各种长大隧道通风的研究与设计计算中。
深埋长大隧道高地温引起的热害将给隧道施工带来不利的影响。
High geothermal in the tunnel with thick overburden is unfavorable for tunnel construction.
研究目的长大隧道采用增设辅助坑道、长隧短打的施工方法来缩短工期。
Research purposes: Service gallery and short excavation methods are employed in the digging of super long tunnels to reduce the construction time.
最后，本文就长大隧道坡度折减系数的分析及标准本身的研究提出了建议。
It also gives some Suggestions on the studies of gradient reduced coefficient of traction in long tunnels and the design standard.
从运行角度对长大隧道设计进行专题分析是铁路设计工作中需要重点关注的课题。
Studying the long tunnel geometric design from its actual operation is the issue should be paid close attention in railway design.
能有效提高洞内控制测量成果的精度，为长大隧道的控制测量提供了可借鉴的经验。
The accuracy of control measuring inside the tunnel is improved. As a result an experience is gained for control measuring of long large tunnel.
研究结果：提出了长大隧道宜优先考虑采用以工程经验为主的隧道动态设计的原则建议。
Research results: the suggestion was proposed the dynamic design of tunnel mainly with engineering experience was adaptively applied in construction of large tunnel in priority.
深埋长大隧道的工程地质宏观预测仍然是当今世界各国工程界亟待解决的重大科研课题。
Deep and long Tunnel engineering Geology macro forecast is still urgent to solve as a major topic research in the engineering world today.
但长大隧道经过地区往往地质条件复杂、施工地质灾害频发，其严重影响了长大隧道建设。
But these tunnel usually through region with complicated geology term, construction geology hazards usually take place.
在比较半无限平面大地模型和四周无限大地圆形隧道模型基础上，提出电气上的长大隧道概念。
Based on model comparison between the semi-infinite earth and the circular tunnel with peripheral infinite earth, the conception of long and large tunnel in the electrical meaning is put forward.
该方法合理利用多期测量资料，且计算简单、方便，能有效提高长大隧道洞内控制测量成果的精度。
The method utilize survey data rationally, and calculation is simple and easy. It can effectively increase the accuracy of the control survey result in long straight tunnels.
本文主要论述了秦岭特长隧道施工降温的措施，为我国以后在修建长大隧道中的施工降温问题提供了经验。
The paper expounds the measures for lowering the temperature in tunnel during the construction of the Qinling extra long tunnel.
隧道通风技术是制约长大公路隧道建设的一项重要技术，开展长大隧道通风研究具有极大的社会和经济价值。
Tunnel ventilation is an important technology that restricts long highway tunnels construction, the study of highway tunnel ventilation has great society and economy value.
长大公路隧道的通风系统工程造价高、运营能耗大，通风系统设计合理与否，对长大隧道工程建设有重要影响。
Whether the ventilation system is designed reasonable or not can significantly affects the construction of long highway tunnel for its high cost in economy and energy.
随着行车速度的不断提高和长大隧道的不断增多，隧道内发生列车火灾的可能性也将增加，而一旦发生火灾人员的疏散救援也会非常困难。
With the continuous increase of traffic speed and the growing number of long tunnels, the possibility of train fires inside tunnels will also increase, and the evacuation will be very difficult.
最后，提出了长大公路隧道火灾预防救援的基本策略。
Finally, the paper summarizes the tactic of prevention and rescue for a long road tunnel fire.
从安全系统工程的角度考虑，本文较全面的论述了长大双洞公路隧道火灾防灾救援安全体系。
By way of safety system engineering method analyzing, in this paper, the general safety system on the tunnel fire protection and rescue of the long highway tunnel is discussed.
针对长大铁路双线隧道轨道结构施工中发生的弹性整体道床轨道偏移问题，阐述了纠偏的方法和施工工艺，为以后同类工程提供借鉴。
A description is given to method and technology adopted against track deviation during construction of elastic monolithic track bed in long double line tunnel.
结合以上研究成果，论文最后给出了我国长大公路隧道运营管理手册的编制框架。
Based on the researches of this thesis, a compiling guideline to operational management manual of long highway tunnel is presented.
但从整体上来看，我国的长大高速公路隧道环境监测系统无论是在性能上还是在组网方式上都落后于西方发达国家。
But in view of the whole situation, our country's long highway tunnel environment monitoring system falls behind the western developed countries in the performance and network.
无论你的项目是一个长大直径的隧道或短小直径隧道，随着时间的推移刀具的选择可能成为你的最重要的投资决策之一。
Whether you are boring a long, large diameter tunnel or a series of short, small diameter tunnels, over time your choice of cutters may be one of the most critical investment decisions you make.
本文结合国内长大公路隧道的运营特点及监控需求，对公路隧道监控系统的功能进行了深入具体地分析研究。
The functions of highway tunnel monitoring system are deeply studied in detail, considering its operational characteristics and monitoring requirements.
山区高速公路建设中，路线最大纵坡与工程量、工程造价的矛盾十分突出，若严格执行标准会出现大量高填、深挖路基、长大桥梁及隧道。
In the construction of expressway in mountain area, the contradiction of the maximum longitudinal slope with engineering's volume and cost is very prominent.
长大深埋高水压山岭隧道的施工将越来越多地采用隧道掘进机法。
Mountain tunnel construction with high water pressure will apply the tunnel boring machine method (TBM) more and more.
长大深埋高水压山岭隧道的施工将越来越多地采用隧道掘进机法。
Mountain tunnel construction with high water pressure will apply the tunnel boring machine method (TBM) more and more.
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