my country's first high -speed rail in China began to jointly adjust the test

Reporter Liang Dongfang Correspondent Jin Jiangnan

On the morning of September 15th, with 55101 testing the train from Jinan East Station, it marked that the Jilai high -speed rail participating in the construction of the 14th Bureau of China Railway, the 17th Bureau of China Railway, the 21st Bureau of China Railway and the 22nd Bureau of China Railway was officially. Start the joint test.

On the day of joint debt, the train across the Daeye Reservoir

The Jilai high -speed rail is the first high -speed rail in my country. It connects the main urban area of ​​Jinan City, Laiwu District, and Steel City. The total length of the line is 117.49 kilometers and the design speed is 350 kilometers per hour. A total of 6 stations, Laiwu North Station, and Steel City Station were constructed in September 2019.

China Railway 14th Bureau has undertaken the first high -speed rail station in the country with the theme of "Steel Elements" -Steel City Station, key control projects across the line, cross -watt -day railway bridge, prefabrication of 581 榀 榀 beams, and 145 kilometers of contact network Construction and other tasks. The metal roof area of ​​Steel City Station exceeded 10,000 square meters, and the total weight of the roof steel structure reached 770 tons. During the roof paving, the builder adopted advanced high -altitude tile machine equipment to achieve the on -site production, one -time molding and overall paving of the roof panel. They also comprehensively used BIM to build analog technology, advanced structural security analysis technology and prefabricated construction technology to improve the accuracy and exquisiteness of product quality.

The first test vehicle of the Jilai high -speed rail issued

China Railway Twenty -first bureaus undertake the longest tunnel of the 4812 meters of Zhaishan Tunnel. Facing sensitive environment and major risk points such as poor geological environment and abundant crack water, the project adheres to the principles of "weak blasting, short -footing, strong support, early closed, and diligence measurement". Measure advanced technical means such as excavation contour surface, and organize experts to demonstrate the safety pace and construction method to ensure the safety of tunnel construction.

Jilai high -speed rail crane construction

The Wangjia Tunnel undertaken by the 22nd Bureau of China Railway is a single -hole and double -line tunnel. The geological is complex and the surrounding rock is broken. The fourth and fifth -level weak surrounding rock accounts for 95%, and the groundwater is abundant. The project department strengthened technological innovation, promoted advanced geological forecasting, and used geological radar, TSP elastic wave reflection method and other advanced testing to ensure the safety of blasting construction, and overcome the challenges of tunnel partial pressure and shallow burial, surrounding rock deformation, etc. The construction speed of the weak surrounding rock tunnel of 130 meters of excavation was created.

The Jilai high -speed rail is a major people's livelihood project connecting the main urban area of ​​Jinan City and the Laiwu District. After opening to traffic, it will help strengthen the interconnection of the economic circle of the provincial capital urban agglomeration and the Beijing -Tianjin -Hebei, the Yangtze River Delta and other regions to promote regional integration and development. At the same time, it is of great significance to improve the regional railway rapid passenger network, optimize intercity transportation structure, and promote the economic and social development of Shandong.

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