8月24日至25日，2012年高寒地区公路隧道建设技术专题研讨会在青海西宁召开，来自全国各隧道建设、设计、监理、咨询等单位的161名专家、学者出席了会议。

August 24 to 25，2012 cold area highway tunnel construction technology seminars are held in qinghai，From the national tunnel construction、design、supervision、Consulting, and other units of 161 experts、Scholars attended the meeting。

　　会议紧紧围绕寒区隧道冻害风险分析方法研究、多年冻土隧道设计与施工控制技术、寒区隧道机电工程技术、寒区隧道防水技术研究等17项内容进行了大会交流发言和讨论。中国科学院院士赖远明作了《寒区隧道势力学特性分析方法》演讲，日本教授樱井春辅作了《如何考虑（定义）隧道的安全率及相关问题》演讲，引起国内同行业专家的高度关注。与会代表还实地观摩了青海省在建的拉脊山隧道施工现场。

Centering on the cold tunnel cold injury risk analysis method、Permafrost tunnel design and construction control technology、Cold tunnel mechanical and electrical engineering、Cold tunnel waterproof technology research and so on 17 content the communication presentations and discussions。The LaiYuanMing academician of the Chinese academy of sciences《Cold tunnel forces learning characteristic analysis method》speech，Japanese professor sakurai well spring auxiliary made《How to consider（definition）Tunnel safety factor and related problems》speech，Cause domestic industry experts high attention。Delegates at the summit also field viewing the construction of qinghai province LaJiShan tunnel construction site。

　　在我国西北、西南和东北存在较大面积的高寒地区，青海省等地还存在多年冻土地层，在这种地质状况下开挖隧道，有其技术特殊性，如冻融冻胀、地温效应、维稳防坍、防冻止水等，都需要有效的技术对策。多年来，青海省在寒区隧道建设上通过积极实践已成功破解了多项世界公路建设史上的难题。此次专题研讨会的召开，为青海省对外推广寒区隧道建设成功经验，向兄弟省市学习交流技术搭建了平台。

In northwest China、Southwest and northeast China is a large area of cold area，Qinghai province, still exist permafrost strata，In this geological condition tunneling，Has its particularity technology，Such as the freezing and thawing frost heave、Geothermal effect、Dimensional stability avalanche、Antifreeze check water，All need effective technical measures。For many years，In the cold of qinghai province on the tunnel construction through positive practice has cracked the multiple world highway uia congress would problem。The seminars held，For foreign promotion of qinghai province, cold and tunnel construction successful experience，Provinces and cities to brother learning communication technique to build the platform。