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青藏铁路(格拉段)位于世界屋脊的青藏高原腹地,工程环境十分严酷,存在高寒缺氧、昼夜温差大、太阳辐射强烈、生态环境脆弱等问题。中铁一局集团有限公司虽然曾参加过青藏铁路西宁-格尔木段以及丰准线低温-39℃恶劣条件下和南疆线高温差条件下的铺架,但尚无在4000米以上高原地区
The Qinghai-Tibet Railway (Gela Section) is located in the hinterland of the Qinghai-Tibet Plateau on the roof of the world. The project environment is very harsh. There are such problems as alpine and anoxic, large temperature difference between day and night, strong solar radiation and fragile ecological environment. Although China Railway First Group Co., Ltd. participated in the Xining-Golmud segment of the Qinghai-Tibet Railway and the exposition of the Fengzhun line under the conditions of high temperature difference between the low temperature of -39 ℃ and the high temperature of the southern line of the Qinghai-Tibet Railway,