深切峡谷大倾角长距离轨道运输关键技术研究

Key Technology of Long Distance Rail Transportation with Large Dip Angle in Deep Gorge

依托川藏铁路雅安至林芝段某桥隧工程,针对项目施工地段典型的深切峡谷地形特点,提出一种大倾角长距离轨道运输方案,避免了峡谷地带施工场地少的不利因素,同时克服了修建临时运输公路造价高、环境影响大的缺点,实现了工程用混凝土、钢材等大宗原材料的高效运输。通过总体设计及施工方案比选,大倾角长距离轨道运输方案具有较好的经济效益,具备一定的推广应用价值。

This study is based on one bridge-tunnel project from Ya’an to Nyingchi section of Sichuan-Tibet Railway.It mainly focuses on the deep gorge characteristics in the construction area and one long distance rail transportation program with large dip angle is proposed to avoid the lack of construction area.Meanwhile,it overcomes the disadvantages of building temporary transport roads which includes high cost and large environmental impact.This program realizes high efficient transportation of bulk raw materials such as concrete and steel.Through the overall design and construction scheme comparison,the long distance rail transportation with large dip angle has better economic efficiency,and it has certain value of promotion and application.