Lancangjiang Railway Bridge Darui

From HighestBridges.com
Jump to navigationJump to search

Lancangjiang Railway Bridge Darui
大瑞铁路澜沧江大桥
Shanyangxiang,Yunnan, China
890 feet high / 271 meters high
1,122 foot span / 342 meter span
2022

Lancangjiang Railway Bridge Darui34.jpg


Due for its first passenger trains in 2023, the stunning Lancangjiang Railway Bridge is the centerpiece of a new line between the cities of Baoshan and Dali in western Yunnan Province. The new railway bridge crosses the upper reaches of a reservoir that was formed behind Xiaowan, the 2nd highest concrete dam in the world. The spectacular 958 foot (292 mtr) high double curvature structure holds back a body of water some 787 feet (240 meters) deep along the Mekong (Lancang Jiang), a river with several of the largest and highest hydroelectric dams in the world including the Manwan, Dachaoshan, Nuozhadu and Jinghong. The Mekong River is the only international river in Asia linking 6 countries. The river has more species of fish than any other waterway on earth except for the Amazon. The full reservoir is 164 feet (50 meters) deep beneath the new railway bridge.

Instead of using cable stays and tiebacks to build the arch, the two steel truss arch halves were built vertically on either side of the canyon slopes on top of scaffolding. While still in a vertical position, the two halves were then then lowered down over the gorge where they were connected at the crown. A highline was then used to build the vertical spandrel supports and road deck. The total length of the bridge is 698 meters.

The location has become a showcase for 3 high spans including an older suspension bridge, the new railway bridge and a pipeline suspension bridge that is the 4th highest of its type in the world after the Hegigio Gorge Pipeline Bridge in Papua New Guinea, the Wujiang Pipeline Bridge and the Niouc Bridge in Switzerland.

Click on the excellent YouTube channel "Chinese Bridge" to see a video of the Lancangjiang Railway Bridge Darui. https://www.youtube.com/watch?v=qu1-paDk3No


LancanjiangBridgeFinalElev.JPG

Lancangjiang River Railway Bridge Elevation


预计于2018年完工,令人惊叹的大瑞铁路澜沧江大桥是大理到保山铁路上的控制性工程。这条新铁路跨越澜沧江小湾水库的最上游部分,小湾水库拥有世界第二高大坝。小湾水坝高达292米,其后在澜沧江上形成了240米深的水库。澜沧江上还有漫湾、大朝山、糯扎渡和景洪等大水库。湄公河(澜沧江)是亚洲唯一流经六个国家的河流,该河拥有亚马逊河以外世界种类最多的鱼。当小湾水库处于满水位时,大瑞铁路澜沧江大桥下的河段水深约有164英尺(50米)。

这座拱桥不是使用扣塔和扣索修建,而是在两岸陡峭山坡上搭建脚手架,分别修好两半边的钢管拱。然后缓慢旋转下放两半边拱圈,最终在拱顶合龙。随后使用缆索吊修建拱圈上的立柱和桥面。全桥长度为698米。

该桥桥位处景色相当壮观,3座高桥在几乎同一位置跨越澜沧江,铁路拱桥,公路悬索桥以及中缅油气管线悬索桥。旁边的油气管线桥是世界同类桥梁中第四高的,仅次于巴布亚新几内亚的Hegigio Gorge管线桥,乌江油气管线桥以及瑞士的Niouc 管线桥。


Lancangjiang Railway Bridge Darui35.jpg


Lancangjiang Railway Bridge Darui36.jpg


Lancangjiang Railway Bridge Darui33.jpg


Lancangjiang Railway Bridge Darui 2BridgesSide.jpg


Lancangjiang Railway Bridge Darui Concrete.jpg


Lancangjiang Railway Bridge Darui High Drone.jpg


Lancangjiang Railway Bridge Darui ApproachDrone.jpg


Lancangjiang Railway Bridge Darui Piers.jpg


Lancangjiang Railway Bridge Darui SideView.jpg


MekongRailwayArch2.jpeg


MekongRailwayArch3.jpeg


MekongRailwayArch.jpeg


Lancangjiang railway Darui and Lancangjiang pipeline bridge 20161102.jpg


LancangjiangHighDrone.jpg


LangcangjiangBridgesSideBySideDrone.jpg


LancangjiangTrussCloseSideDrone.jpg


LangcangjiangSideRotationClosure.jpg


LangcangjiangOvercastClosureDrone.jpg


LancangjiangRailwayDaruiWood.jpg


Lancangjiang Railway Bridge DaruiWoodStairs.jpg


LancangjiangRailwayArchClsureView.jpg


LancangjiangRailwayRoad.jpg


LancangjiangRailwayWaterfall.jpg


LancanjiangRailwayArchRib.jpg


LancanjiangRailwayArchClose.jpg


LancanjiangRailway2015Arches.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwayPanorama.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwayArchHinges.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwayEastHinge.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwayWestHinge.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwayElevConst.jpg

Construction elevation showing the arch halves that are constructed on scaffolding on the slopes before being positioned vertically and then lowered out over the gorge and connected at the crown.


LancanjiangBridgeConstUpload.JPG


LancanjiangRailwayTopo.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwayPlanWide.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwayOldBridgeSite.jpg

The foundation of the original suspension bridge can be seen when the reservoir is down to the original level of the river. Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwaySuspension2Lane.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwayLowerSuspension2015.jpg

Another view of the two original crossings including the 2-lane suspension bridge on the right and the one-lane suspension bridge foundation on the lower left. Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwayBathtubLines.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwayLowerHinge.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwayArchRust.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwayHingeFromBelow.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangRailway&Suspension2.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwayLonglensHighline.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangPipelineFullView.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangPipelinePanorama.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwaySilkRoadArch.jpg

An old archway frames a section of the famous Silk Road. Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwaySilkRoadView.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwayHeadquartersFront.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwayApproachPiers.jpg

An approach viaduct leads to the tunnel just east of the Lancangjiang River canyon. Image by Eric Sakowski / HighestBridges.com


LancanjiangRailwayApproachTraveler.jpg

Image by Eric Sakowski / HighestBridges.com


LancanjiangBridgeSite.jpg

Lancangjiang Railway Bridge construction site. The two halves of the arch are beginning to rise vertically along either slope.


LangcangRailway.jpg

An early construction view before the arch foundation was complete.


LancanjiangSuspArchSite.jpg

The temporary suspension bridge built for access to either side of the gorge. The Xiowan Dam reservoir has not reached the bridge site.


LancanjiangHighlines.jpg

The highlines and part of a completed arch half on the opposite canyon wall.


LancanjiangArchSupports.jpg


Lancangjiang Railway Bridge DaruiRender.jpg


LancanjiangPipelineBridge.jpg

The location is home to 3 high bridges including the suspension road access bridge, the railway arch and the pipeline suspension bridge.


LancangjiangRailwaySatellite.jpg

Lancangjiang Railway Bridge satellite image.


LancanjiangRailwaySatellite.jpg


LancangjiangRailwaySatelliteWide.jpg


LancanjiangRailwayLocationMap.jpg

Lancangjiang Railway Bridge location map.


LancanjiangRailwayMap.jpg

A map showing the Lancangjiang crossing in the upper right and several of the long tunnels near Baoshan city. On the far left is the Nujiang River.


LancanProposalArch.jpg

Early Lancangjiang Railway Bridge arch proposal.


LancanjiangOldDesign.jpg


XiaowanDamConstruction.jpg

The massive Xiaowan Dam that is now the second highest concrete dam on earth after the under construction Jinping Dam.


XiaowanDamConstruction3.jpg

Xiaowan Dam during the final stages of construction.


XiaowanDamComplete.jpg

The completed dam with nearly a full reservoir behind it. The water depth is approximately 787 feet (240 meters) just behind the dam.


XiaowanDamLevls.jpg

The water level has not yet reached the full pool height of 1,225 meters though the water can be allowed to go as high as 1,240 meters during floods.