It's no accident that "capital construction maniac" once again successfully took risks.

At 9:50 a.m. on November 2, 2019, the Bayu tunnel from Lhasa to Linzhi section of Sichuan Tibet Railway constructed by China Railway 12th Bureau was successfully completed. This is of great significance to the early opening of Sichuan Tibet railway, the "Heaven Road" in China. (Guangming Daily, October 15) A 6031 a 6031 Qinghai Tibet Plateau is 2800 km long from east to west, 300-1500 km wide from north to south, and covers a total area of 2.5 million square kilometers. Influenced by many factors, it has formed the highest and youngest natural geographical unit in the world, which is closely combined with horizontal and vertical zonality. The annual average temperature in the hinterland of the plateau is below 0 ℃, and the average temperature of the warmest month in a large area is less than 10 ℃. The Qinghai Tibet Plateau is generally between 3000-5000 meters above sea level, with an average altitude of more than 4000 meters. It is known as the "roof of the world" The opening and operation of the

Qinghai Tibet Railway means that the most widely used long-distance transportation mode in the world is introduced into Tibet, providing all-weather and large-scale transportation channels for Tibet. But fundamentally, it has not completely changed the conditions of external transportation in other regions. The Sichuan Tibet railway line under construction is divided into three sections, the eastern section from Sichuan to Kangding has been completed, the middle section from Kangding to Linzhi has not been started, and the Bayu tunnel is located between Linzhi and Lhasa in the western section As the first heavy rock burst railway tunnel in the world, 94% of Bayu tunnel is a high incidence area of rock burst. The engineers of China Railway 12th Bureau, together with the cooperation units of China Railway Eryuan and Chinese Academy of Sciences, have overcome the world's difficulties. After five years, they have created a miracle of the world plateau railway tunnel project under extreme conditions. As a key node project of the Sichuan Tibet railway, the successful completion of Bayu tunnel is of great significance to the early opening of the railway

the author believes that it is no accident that Chinese craftsmen have made such remarkable achievements. From 2005 to 2019, more than 80000 kilometers of expressways were newly built in China, with a total mileage of 133000 kilometers, ranking the first in the world. By October 2019, China's railway mileage exceeded 130000 kilometers, ranking the second in the world. In 2018, China's steel output reached 837 million tons, accounting for about the world's total. 49% of production. In addition, in recent years, super projects such as lanjing-1 crane ship, Fuxing high-speed rail EMU, Tiangong-1 target aircraft, Hong Kong Zhuhai Macao Bridge and other major powers have appeared with Chinese people. From these examples, we can fully feel that our motherland is constantly strong. From the previous import to the current export, only in a few decades, we have caught up with the pace of world development

from the dream project, innovation driven, coordinated development to green China, sharing a well-off society and opening up China, there are super projects, senior engineers, ordinary people and ordinary things. The "craftsman of a big country" supports the "Chinese dream" with hard work. It arouses the inner self-confidence of every Chinese and feels the inner pride and pride of being a Chinese. (by Xia Wenbo, Guangzhou North depot of Guangzhou Shenzhen Railway Co., Ltd.)