On August 30, in the Maldives of scene charming and gentle, a large project -- You Zaiyu makes 2 boat inning in center look forward to what 2 companies assume construction job is medium Ma Youyi big bridge builds be open to traffic.
Tired island of Maldives capital horse arrives on the vast area between airport island, this brand-new big bridge shape is like a rainbow, two islands join rises, came true old since Maldivian civilian the dream that has to cross Hai Daqiao.
The Maldives of scene charming and gentle
The backside of be open to traffic, it is the hardships that big bridge builder pays completely. Tall salt of the complex environment that faces marine cay geology, high temperature is tall the abominable condition such as wet tall radiate, construction of 974 days, this construction group that exceeding 6 Chengdu is Chongqing person how is gram of assault fortified positions difficult? Look downward!
Equestrian tired time is late on August 30, maldives the first modern bridge -- Chinese aid be open to traffic of big bridge of friendship of the horse in Maldives. The graph is spot of ceremony of be open to traffic. Xie Bihao is photographed
Seawater round annulus erode below
Project group open up is maritime construction " lifeline "
Offing is the sea of mad intense, rapid undercurrent and geological and complex cay are below the sea, control sexual project as complete bridge especially advocate the bridge, located maritime space is a trench that is as deep as 46 meters. Should build on so deep trench cross Hai Daqiao, be full of hardships and dangers.
Just beginning to build when setting bridge approach landing stage, the project encounters difficulty. March 2016, shi Chen of picket of steel tube of bridge approach landing stage encountered hard cay layer, enter cliff hard. Picket boots, treatment is added to become in bottom mouth " bullet head " structure, all announce failure. In home again common the working procedure that does not pass, became big difficult problem unexpectedly here.
Classics of project construction group for many times delibrate analysis and structural adjustment, just make picket of bridge approach steel tube is able to apply on cay heavy. However, many meters of before 100 wave that extends to Hai Zhongyan from the bank splashs an area, ten seconds have every other a ground swell is patted, smooth couplet of steel tube picket solders desultory, landing stage is built set advance hard.
"Not get through landing stage, be in maritime the ground that does not have base oneself upon. Even if be the intermittence of a few seconds that has used every ocean wave, also want ' gnaw ' give a road to come. " Lin Shukui of group leader of group of project construction technology introduces, to bite off this hard bone, a few workers fall two classes, there is person specially assigned for a task to be in charge of Bing looking on the landing stage when soldering, ground swell exclaims immediately, everybody rises instantly and raise solder clamp high, billow crosses everybody to bow again continue spot welding, ground of such move back and forth and billow make a stand against.
such, erode in seawater below, by June 2016, 400 meters of landing stage take bridge approach of equestrian tired side entirely set finish, a construction gives in maritime open up " lifeline " .
The technology tackles key problem
Innovation goes " Chinese speed "
Besides landing stage of get through bridge approach, advocate picket of bridge steel tube is mixed picket radical steel protects tube of Shi Chen also is Chongzhongzhi is weighed.
Understand pattern of marine hydrology weather, research suits the athletic stance that shipping works, the scientific forecast that begins wave height and wave cycle... builder people hit out actively, day and night is studied, apply method of science and technology to be in the indian ocean was sought in deep-sea current but the valuable time that hoisting works paragraph -- " window period " .
Everyday, workers are captured " window period " , even if have half hours only, although rainstorm comes over, also stand fast post. Final, the window that is less than 200 hours in many days 200 period inside, advocate 5 picket of steel tube of 37 landing stage, initiative platform and 35 steel protect the bridge the construction such as the canister all safety is finished.
Just about the technology tackles key problem, project group showed Chinese rate: On April 6, 2017, advocate 35 picket radical finish the bridge entirely, shift to an earlier date 24 days than original plan; 2017 in monsoon, advocate the bridge 5 large bear the stage is finished than planning to shift to an earlier date 22 days formerly; Advocate all V mound mixes the bridge 0 date piece closure shift to an earlier date 12 days to finish than original plan...
In construction in equestrian friendship big bridge, construction personnel is carrying construction of burning sun insecurity on the head. Du Cailiang is photographed
One every day against time
Create place " marine miracle "
Maldives is given priority to with tourism and fishery, structure natural resources is exceeding deficient, equipment of all construction goods and materials, life goods and materials, construction wants big bridge entirely entrance.
Among them, all construction equipment and the construction goods and materials of 90% come from China, from purchase use to the spot, time span is as long as 3 months. In addition, all material carry has refute, have a change of luck again even to spot hind, pile up, 2 have a change of luck, use, the process is extremely trival.
How to improve efficiency, do not delay time limit for a project? The answer that project group gives out is " against time, without seam join " .
In September 2016, become the first batch 50 thousand tons of bulk cargo arrive at Maldives, local custom closes long look at when growing long goods detailed list, let project group get ready everyday the demurrage charges of 8000 dollars, he thinks neither one is many months impossible that discharge is over.
However, project group arrives in goods before today, contact good place custom already, wait for shipping to anchor the Qing Dynasty after perch closes personnel to ascend boat Qing Dynasty to close instantly. Meanwhile, the ship that uses goods of be out of luck already relied on boat perch ahead of schedule, wait for Qing Dynasty to close one end instantly discharging of be out of luck. With an emulative enthusiasm, and run ceaselessly day and night, the group just finished discharging job inside 12 days of sailing date, local custom closes long gasp in admiration: "You created the miracle of Maldives! "You created the miracle of Maldives!!
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