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2019-12-23 11:06來(lái)源：新華網(wǎng)

　　沙漠中筑大橋

　　這是敦格鐵路沙山溝特大橋（12月11日無(wú)人機拍攝）。敦（煌）格（爾木）鐵路沙山溝特大橋位于甘肅省酒泉市阿克塞哈薩克族自治縣境內的庫姆塔格沙漠內，是一座穿越活動(dòng)性沙漠地區的特長(cháng)橋梁，也是敦格鐵路的重難點(diǎn)控制工程。據介紹，橋梁所在區域風(fēng)沙活動(dòng)頻繁，四季及晝夜溫差大，在建設過(guò)程中，中鐵十一局集團有限公司的建設者根據沙層的厚度、分布及含水率的不同，總結出一套沙丘樁基施工工藝。新華社記者范培珅攝

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