塔里木沙漠石油公路工程技术研究

STUDY ON THE ENGINEERING TECHNIQUES OF OIL-TRANSPORTING HIGHWAY IN TARIM DESERT

塔里木沙漠石油公路修筑在世界上流动性最大的塔克拉玛干沙漠腹地。沿线沙物质细，起沙风频率高，风沙流输沙量大，地质地貌条件复杂，沙丘移动速度快。修筑沙漠公路要解决两个关键技术问题：一是加强沙基的稳定性；二是防治风沙危害。经过各学科专业人员的协作攻关，采用了振动压实路基和薄层砂砾＋土工布路面结构方案；设置机械沙障为主，化学固沙、生物固沙结合的防沙体系，解决了这两个问题。线路选择布局合理也是沙漠筑路的关键一环。

Tarim oil-transporting highway passes through the hinterland of Taklimakan Desert,which is one of th e largest mobile dunefields in the world. The geological and geomorphological conditions are quite complex along the highway line in addition to frequent sand-raising winds andhigher sand transport rates.The construction of the desert h igh way is faced with two key technicalproblems:one is how to consolidate the sandy subbase and the other is how to control wind-sanddamages. Both problems have been solved through the ccoperation research of experts from differentdisciplines.As to the former,the subgrade structure consisting of vibrantly compacted subbase,thin-layer gravel and geotextile structural layer was adopted.To the latter,the mechnieal sand barriers,chemical mulch and biological measures were used.