Model Wang Jiujun: China's railway will produce excellent products

110 years ago, the Beijing Zhangjiakou Railway, built by Zhan Tianyou, the father of China Railway, broke the myth that the Chinese could not build their own railway. Now the Beijing Zhangjiakou high-speed railway is about to open, which will be the first of the world's intelligent high-speed railway. Wang Jiujun is one of the railway people in this new era, and this is a group of admirable people. (Wang Jiujun, deputy director and senior engineer of boutique Engineering Office of Beijing Zhangjiakou Intercity Railway Co., Ltd.) A 6031 a 6031 is brave in the challenge and brave in the railway construction. In terms of overcoming difficulties, Wang Jiujun told a story that impressed him deeply. Qinghuayuan tunnel is the most difficult construction of the whole line, and it is also a world-class problem. It passes through the densely populated area of Xueyuan South Road, Haidian District, Beijing, intersects with Beijing Metro Line 10, line 15 and line 12, and runs parallel with line 13. In addition, it also passes through a large number of urban main roads and underground pipe networks. Among them, the minimum structural clear distance with line 15 is only 0.8m. In this case, he thought of the synchronous development of the structure under the track and the shield tunneling, which set a precedent for the domestic full prefabrication and assembly technology. It gives a bright Chinese business card to the world railway construction.

is based on science and technology to make the construction of high-speed railway more intelligent. During the construction of Badaling Great Wall Station, Wang Jiujun used many intelligent means. First of all, since Badaling Great Wall Station is built in the tunnel, it is necessary to build not only three floors of underground structure, but also 78 large and small caverns, with a maximum span of 495 square meters. Secondly, the soil structure of Badaling tunnel is of high risk, which will cause collapse if it is a little careless; there is a risk of underground water gushing, and a "big fountain" will appear if it is drilled. Finally, because the tunnel passes through Jundu mountain, the high and medium height on both sides are low, and the terrain fluctuates greatly, so the large-diameter shield tunneling machine cannot be accommodated, so the blasting method can only be used. However, Badaling Great Wall is also a scenic spot, which requires a high level of cultural relic protection and ecological environment. Therefore, we have to adopt new technology of precise micro blasting to minimize the amplitude and decibel of blasting vibration, which is only equivalent to an adult stamping his foot on the Great Wall. He also promoted the application of 3D laser cross-section scanning technology, as well as Huailai double block sleeper unmanned production line technology. The application of intelligent technology means not only reduces the damage to existing facilities and the pollution of ecological environment, but also saves the cost and improves the construction quality to the greatest extent, which greatly supports the construction of intelligent Beijing Zhangjiakou Railway in the technical level. A 6031 a 6031 has a long history, which makes the construction of high-speed railway quick. Wang Jiujun's career is not accidental. "Wine is the fragrance of Chen". It comes from the baptism of time and the hard work. He once left the railway system and moved to new areas such as real estate and accounting. It is these valuable experiences that have forged his very strong ability of operation, overall planning and coordination, as well as his unique understanding of railway construction management. In the process of construction, he not only shows excellent professional quality, but also plays a very strong ability of overall planning and coordination. He always calmly finds out the crux from the complex problems, and then solves it. The accumulation of experience has transformed quantitative change into qualitative change, which makes it different and makes China's railway construction lead the world.

China railway construction, "there is no best, only better". Only under the leadership of such excellent examples as Wang Jiujun, and with continuous innovation, progress and breakthrough, can China's high-speed rail construction be doubled in quality, make "building a strong country in infrastructure construction" not empty talk, and make China's high-speed rail construction to a higher level (author: Xu Yiheng)