Another big project! World's deepest high speed rail station will be built under the great wall great wall | line | _ news

Source: Beijing Youth daily and the Beijing News

Jingzhang railway is a Chinese designed and built the first railway, Zhan tianyou, of the famous "people"-shaped railway which is a. Now, the other a self-designed jingzhang railway – jingzhanggaotie comprehensive building. Give workers a "pressure Alexander" is that the jingzhang railway for more than 100 years old are still in operation, is truly a century engineering technology updates for several generations, a spade a shovel worthy predecessors.

Under the plan, the end of 2019, jingzhanggaotie fully operational and will fully replace the old Beijing, Beijing to Zhangjiakou pass time reduced from the current three or four hours to 1 hour.

Jingzhanggaotie Ba Da Ling tunnel has been through more than 170 meters

　　From the Badaling section recently, but hundreds of meters

Under ju Yong Guan, workers had to get through more than 170 square meters, under the Badaling tunnels into mountains of new, extended 12.01 km.

Just above is just winding great wall at Badaling, two tunnels beneath the great wall, and the minimum distance of only 92 meters of the great wall. Generally speaking, the railway tunnel encountered the mountains are too hard, can only rely on blast, but this kind of blast damage to the great wall. Thus, under this section of the great wall in Badaling tunnel, would be devoted to the introduction of electronic detonator shock blast, shock speed of 5 cm/s, down from 0.2 cm/s, meet the requirements of the insurance sector.

Qinglongqiao railway station opposite the great wall (information above)

Is responsible for the construction of a railway five chief engineer Luo Douhao described to reporters in General of blasting vibrations is like home window glass shook, and the micro-blasting control more precise, the construction is like passing from the sidelines, "beneath the blast, stood on the hill people have so little feeling. ”

Station built deep in the hundred meters, can also reduce the impact of high-speed rail after; underground track about 20 cm higher than the ordinary rail tracks, but also for buffering to reduce vibration, in addition, in order to minimize the impact on the Badaling area, exit strictly control the scale of buildings on the ground.

　　"The deepest station" will use the highest escalator

In the 12 km-long Badaling tunnel, 102 meters underground, a new Beijing-Zhang Gaotie in 10 stations across only one underground station – the great wall at Badaling station. Basement area of 36,000 square meters, the maximum depth of 102 metres, Badaling great wall became the world's largest, buried most of the high-speed rail and underground station.

By design, the three-layer structure of the great wall at Badaling station the total construction area of over 40,000 square meters, one of the most platform below, two floors above for access to the station. Maximum depth of 102 metres at the station, and the station has become the world's largest, but also the depth of maximum high speed rail underground stations.

Jingzhanggaotie at Badaling in the tunnel, the construction is being push

Passengers will be able to experience the station of "depth". Luo Douhao introduction, passenger access to the station is 62 meters lifting height, by long escalators and inclined elevators and other equipment out of the station, which is currently the largest passenger lift height of the high-speed underground stations. Under construction stations passages for laminated form for the first time, realized in and out of station passenger flow separation and balanced in and out of station layout. 、

According to the construction schedule, the station will be started during the year, is expected to be completed by September 2018.

　　"People"-shaped railway will become "great" shape

Old Beijing-Zhangjiakou railway to Badaling, the slope was 33 per thousand, meaning 1-kilometer away from 33 meters height difference. Because of that, it came to be known as the "father of China's railway" Zhan tianyou, invented the "people"-shaped rail, Zhangjiakou on trains from the direction to enter the Tsing Lung Bridge, and then turn on to another track from the Tsing Lung Bridge in Beijing.

Old jingzhang Railway (information above)

Mountains is unchanged, and Zhang Gaotie in new Beijing Badaling difficulty has not changed-the two under the Badaling great wall, a parallel water outside the great wall, jingzhanggaotie will wear old Qinglongqiao railway stations in Beijing.

Old Beijing-Zhangjiakou railway line (information)

The coincidence is, this time under just "man"-shaped railway sidelong na intersection. This means the next Jing Zhang Gaotie intersect after the opening of the new and old Beijing, the famous "people" zigzag railway will become a "large" font style.

　　How to protect the 107 Qinglongqiao railway station?

The Qinglongqiao railway station is located in the foot of the Badaling great wall in Beijing is a four station, but it is most noticeable on the jingzhang railway stations. 100 years ago, Zhan tianyou was here cleverly uses "people"-shaped rail, solved the technical problems of Badaling steep high.

107 the Qinglongqiao railway station into a high speed train (information above)

Now, this century-old "human" character tracks still in the extended run, 107 Tsing Lung Bridge would stand still bear witness to more than more than 10 trains a day after. Their presence also bears witness to the development road of China's railway.

Century how Rails and centuries-old protection? Luo Douhao said in this section of the tunnel construction is expected for February 2018, "it for a long while only 40 m, but to use artificial methods to protect cultural relics. ”

In Alpine, big sandy, a track through the tunnel, jingzhanggaotie how to achieve speeds 350km?

Different from other trains, jingzhanggaotie most of the road sections will be ballasted track. The so-called track, informally is laying under the track "sleepers". China has 350 km/h high-speed train operation, but the iron tracks belonging to the track. Previously, domestic railway operation the maximum speed is 250 km of track, and foreign countries only France have precedent, but operating only 320 kilometers per hour. Jingzhanggaotie is the world's first high-speed railway track design speed of 350 kilometers.

Meanwhile, jingzhangtie is the world's first design of 350 kilometers per hour in Alpine, big sandy railway and via massive mountains, the vast majority of routes running through the tunnel.

Jingzhanggaotie how 350km/h faster?

Zhang, Chairman, Deputy Director of the Beijing railway Bureau, Beijing Yu Zexi introduction, objective-based building environment, jingzhanggaotie is a track, which has high requirements for bridge structures. "Specially developed for this we are in the process of building a new type, dynamic simulation by checking the dynamic behavior of the bridge meets the requirements, vehicle operating comfort best. Is the world's first set of standard beam for track speed of 350 kilometers. ”

Total of 10 new jingzhang railway station

Jingzhanggaotie will pass through the village and the great wall scenic area, great vibration noise from high speed how to hack? Luo Douhao said that on this particular route, track, rail height height of 76.5 cm, reduces vibration noise.

　　Relaxed on the day of the Winter Olympics Beijing, Zhangjiakou

In 2022, the Zhangjiakou, Beijing will join hands to host the winter Olympic Games, when the project will be held in Beijing on the ice of the Winter Olympics project, yanqing held Alpine skiing, snowmobile ski Division project, Zhangjiakou chongli Division project on the snow.

Jingzhanggaotie, once completed, will greatly shorten the time of passenger transport between Beijing and Zhangjiakou. It is understood that from qinghe to Chong Li Prince stations on the branch line, is expected to take up to 50 minutes of time. When Zhangjiakou, Beijing, Olympics, easy round trip on the same day.

　　News read more NEWS MORE

　　Track VS ballastless?

Ballast (zh ǎ), fragments of rocks, coal, etc. On the railways, for subgrade using small pieces of stones.

Conventional railway track is a track, usually made up of two parallel steel rails, on the Rails fixed on sleepers, as under ballast, gravel-paved road. Lu Zha and sleepers have increased bearing surface, dispersing pressure, help train rail load-bearing function. Traditional track laying characteristics of simple, low cost, easy settlement, frequent maintenance, maintenance costs high. Meanwhile, train speeds are restricted.

Track (information above)

Track Rails, fasteners, to form the unit Board, shock absorption, decompression function. Ballastless track sleepers are concrete and subgrade or gravel, steel rails, sleepers spread directly on the concrete. Ballastless track technology is advanced in the world, you can reduce maintenance, reduce dust and landscaping, more comfortable, you can greatly improve train speed.

Track reinforcement and insulation applied
Only CRTS with completely independent intellectual property rights in China ⅲ-type slab ballastless track plate in the Beijing-Shenyang railway four contractors in use on high-speed rail

Responsible editor: Qiao Leihua SN098

Article keywords:
High-speed rail to the great wall

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又一项大工程！长城下将建造世界最深高铁站|高铁|长城_新闻资讯

　　本文来源：北京青年报、新京报

　　京张铁路是中国人自主设计建造的第一条铁路，著名的詹天佑“人”字形铁路就是其中一段。如今，另一条自主设计的京张铁路——京张高铁也全面开建。让工人们“压力山大”的是，老京张铁路过了100多年都还在运营，是真正的百年工程；现在技术更新了几代，一锹一铲都得对得起前辈。

　　根据计划，2019年年底，京张高铁全线通车，也将全面替代老京张，北京到张家口通行时间从现在的三四个小时缩短至1小时左右。

京张高铁八达岭隧道已打通170多米

　　距八达岭长城最近不过百米

　　居庸关山下，工人们已向前打通170多米，全新的八达岭隧道由此进入深山之下，延伸12.01公里。

　　正上方恰是蜿蜒的八达岭长城，隧道需两次下穿长城，与长城最小距离仅92米。一般来说，铁路隧道遇到的山体太过坚硬，只能依靠爆破，但这种爆破对长城可能产生破坏。于是，在八达岭隧道中的下穿长城这段，将专门采用电子雷管减震爆破，让震速一下从5厘米/秒降到了0.2厘米/秒，满足了文保部门的要求。

青龙桥车站对面的长城（资料图）

　　负责这一段施工的中铁五局项目总工罗都颢向记者形容，普通爆破的震动就像是家里窗户玻璃晃动，而这种微爆破控制得更精准，施工就像是车从身旁驶过，“底下爆破，站在山上的人几乎没什么感觉。”

　　车站建在百米深处，也能够降低高铁经过的冲击；地下轨道比普通高铁轨道高了20厘米左右，也是为了有所缓冲减少振动影响；此外，为了最大限度减轻对八达岭景区的影响，地面出口建筑物严格控制建筑规模。

　　“最深车站”将用国内最高扶梯

　　12公里长的八达岭隧道内，地下102米，将新建京张高铁全线10座车站中唯一的一座地下车站——八达岭长城站。地下建筑面积3.6万平米、最大埋深102米，八达岭长城站由此成为世界上规模最大、埋深最深的高铁地下车站。

　　根据设计，三层结构的八达岭长城站总建筑面积超过4万平方米，其中最下面为站台层，上面两层为进出站层。车站最大埋深102米，也让该站成为目前世界最大的，同时也是埋深最大的高速铁路地下车站。

京张高铁八达岭隧道里，施工正在紧张推进

　　乘客将能亲身感受到这座车站的“深度”。罗都颢介绍，乘客进出站的提升高度为62米，将通过超长扶梯及斜行电梯等设备进出车站，这也是目前国内旅客提升高度最大的高铁地下站。在建设中首次采用叠层进出站通道形式，实现了进出站客流完全分离和进出站口均衡布置。、

　　根据施工进度安排，车站将在年内正式开工，预计2018年9月完工。

　　“人”字形铁路将变“大”字形

　　老京张铁路到了八达岭，坡度是千分之三十三，意味着一千米的距离高度就差了33米。正因如此，后来被称为“中国铁路之父”的詹天佑发明了“人”字形铁路，张家口方向来的火车从坡上驶入青龙桥，再从青龙桥折返到另一条轨道上进京。

老京张铁路（资料图）

　　崇山峻岭未变，新京张高铁在八达岭难度也未变——两次下穿八达岭长城、一次并行水关长城以外，京张高铁还将下穿老京张铁路青龙桥车站。

老京张铁路线路（资料图）

　　巧合的是，这次下穿恰好位于“人”字形铁路的一撇一捺交会处。这也就意味着，未来京张高铁开通后新老京张相交，这条久负盛名的“人”字形铁路将变为“大”字形。

　　如何保护107岁青龙桥火车站？

　　地处北京八达岭长城脚下的青龙桥火车站虽然只是一个四等小站，但却是京张铁路线上最引人注目的车站。100年前，詹天佑就是在这里巧妙地运用了“人”字形铁路，解决了八达岭坡度陡高的技术性难题。

107岁的青龙桥火车站驶入一辆高速列车（资料图）

　　现在，这条百年“人”字铁轨仍在延伸运行，107岁的青龙桥站每天仍然见证着10余趟列车的经过。它们的存在，也见证着中国铁路的发展之路。

　　百年铁轨和百年老站如何保护？罗都颢说，在这一段隧道施工预计在2018年2月进行，“这一段虽然只有40米长，但要采用人工开凿的手法以保护文物。”

　　高寒、大风沙、有砟轨道、穿越隧道，京张高铁如何实现时速350km？

　　与一般的高铁不同，京张高铁大部分路段都会采用有砟轨道。所谓有砟轨道，通俗地讲就是轨道下铺设“枕木”。此前中国已有350公里时速的高铁运营，但这些高铁轨道都属于无砟轨道。此前，国内有砟轨道的铁路运营最高时速是250公里，而国外也只有法国有先例，但运营时速只有320公里。京张高铁是世界上第一条设计时速350公里有砟轨道高速铁路。

　　同时，京张铁也是世界上第一条设计时速350公里的高寒、大风沙高速铁路，而且，途经大面积山地，绝大多数路线要从隧道中穿过。

　　京张高铁是如何实现350km/h的速度的？

　　北京铁路局副局长、京张公司董事长余泽西介绍，基于客观的建设环境，京张高铁采用的是有砟轨道，这就对桥梁结构有很高的要求。“为此我们在建设过程中专门研制了新的梁型，经动力仿真检算，桥梁各项动力性能满足要求，车辆运行舒适性达到优秀。是国际上首套适用于时速350公里有砟轨道的标准梁型。”

新京张铁路共设10个车站

　　京张高铁还会经过村庄和长城景区，高速行驶带来的巨大震动噪音如何破解？罗都颢说，在这段特殊路线上，采用无砟轨道，将铁轨高度加高至76.5厘米，有效减少了震动噪音。

　　看冬奥会 当天轻松往返北京张家口

　　2022年，北京将携手张家口举办冬季奥运会，届时冬奥会项目将在北京赛区举行冰上项目，延庆赛区举行高山滑雪、雪车雪橇项目，张家口崇礼赛区举行雪上项目。

　　京张高铁一旦建成，将大大缩短北京、张家口两地的客运时间。据了解，从清河站到崇礼支线上的太子城站，预计只需要50分钟的时间。届时往返北京张家口看冬奥会，当天就能轻松往返。

　　新闻多看点NEWS MORE

　　有砟轨道VS无砟轨道？

　　砟（zhǎ），岩石、煤等的碎片。在铁路上，指作路基用的小块石头。

　　传统的铁路轨道是有砟轨道，通常由两条平行的钢轨组成，钢轨固定放在枕木上，之下为小碎石铺成的路砟。路砟和枕木均起加大受力面、分散火车压力、帮助钢轨承重的作用。传统有砟轨道具有铺设简便、综合造价低廉的特点，但容易下陷，维修频繁，维修费用较大。同时，列车速度受到限制。

有砟轨道（资料图）

　　无砟轨道由钢轨、扣件、单元板组成，起减震、减压作用。无砟轨道的轨枕本身是混凝土浇灌而成，而路基也不用碎石，钢轨、轨枕直接铺在混凝土路上。无砟轨道是当今世界先进的轨道技术，可以减少维护、降低粉尘、美化环境，比较舒适，还可以大大提高列车时速。

无砟轨道钢筋绑扎及绝缘施作
中国唯一具有完全自主知识产权的CRTSⅢ型先张板式无砟轨道板将在中铁四局承建的京沈高铁上使用

责任编辑：乔雷华 SN098

文章关键词：
高铁 长城

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