国产精品99一区二区三_免费中文日韩_国产在线精品一区二区_日本成人手机在线

Construction of steel truss bridge with ballastless tracks enters key stage

Source: Xinhua| 2019-03-04 23:32:40|Editor: Mu Xuequan
Video PlayerClose

ZHENGZHOU, March 4 (Xinhua) -- Construction on China's first large-span steel truss bridge with ballastless tracks has entered the key stage of erection in Zhengzhou, capital of central China's Henan Province.

The first 57-tonne transversal spacing component was precisely descended on top of the largest bridge pier on Sunday.

The 4,377-meter-long Zhengzhou Yellow River extra large bridge, built by the China Railway Major Bridge Engineering Group, is the key part of a high-speed railway connecting Zhengzhou with Jinan, capital of the eastern Shandong Province. The railway is designed to allow a speed of 350 km per hour.

With its steel beams weighing more than 70,000 tonnes, the bridge is designed with two floors. The upper floor is a six-lane expressway while the lower level is a four-track railway.

Compared to traditional tracks, the ballastless track has a longer life span and requires less effort in maintenance.

Conquering the challenges of environmental protection and hydrological conditions of the Yellow River and high standards on building technology, the construction of the bridge will set up a model for China's large-span steel truss bridge to be laid with ballastless tracks, said Chen Erbin, an official in charge of the project.

Upon completion of the Zhengzhou-Jinan railway, transport time between the two cities will be cut from five hours to within two hours.

TOP STORIES
EDITOR’S CHOICE
MOST VIEWED
EXPLORE XINHUANET
010020070750000000000000011105091378687771
主站蜘蛛池模板: 施秉县| 安陆市| 崇仁县| 准格尔旗| 沛县| 内乡县| 宝清县| 郎溪县| 新邵县| 宿迁市| 岗巴县| 昭觉县| 长宁区| 大关县| 武安市| 娄烦县| 绵竹市| 延川县| 延吉市| 垫江县| 独山县| 吉木乃县| 藁城市| 泉州市| 乌兰浩特市| 井冈山市| 华容县| 泰和县| 嘉善县| 汤原县| 台北市| 定日县| 临高县| 齐齐哈尔市| 修文县| 永丰县| 册亨县| 翼城县| 沂水县| 沙雅县| 兴化市|