A few days ago, the main project of Ping (Liang)-Tian (Shui) Expressway, which was built by the fifth company of China Railway 18th Bureau Group, has been fully completed. The project is expected to open to traffic at the end of this month. At that time, Gansu Province will add a fast track connecting Longdong and Longnan. , To further improve regional traffic conditions, which is of positive significance for consolidating the results of poverty alleviation in the areas along the route and helping rural revitalization.

The construction bid section of the five companies of the China Railway Eighteenth Bureau Group is located in Pingliang City. As one of the main areas where the Red Army passed through the Long March and successfully joined forces, Pingliang has always been a hot spot for heroes. More than 80 years have passed, and a new legend is being written in this red land. The starting point of Pingtian Expressway is at Huating County, Pingliang City, and the end point is at Xishilipu, Tianshui City. The total length of the project is 168.07 kilometers. The main line adopts two-way four-lane expressway technical standards and a design speed of 80 kilometers per hour. The Pavement 2 Standard for the construction of the five companies of China Railway Eighteenth Bureau Group is 31.76 kilometers long, which mainly includes the road construction of the main road surface, auxiliary works, 1 service area, 1 intercommunication toll station and 1 dangerous goods inspection station. The project has a large amount of work and tight deadlines.

Speed up engineering construction

In order to meet the construction needs, the project department built an asphalt mixing plant, a concrete mixing plant and two water-stable mixing plants in the valley to ensure the construction needs.In June 2019, when the project completed its preliminary work and was ready for a big fight, it was faced with the test of the volatile local climate. Gansu Province used to feel arid and drier, but in the deep mountains of Zhuanglang County, Pingliang City, the rainfall is extremely abundant. From June to September of 2019, it rained almost every day for three months, which brought great challenges to the road construction of the project. For this reason, the project department arranged a dedicated person to pay attention to the weather forecast at all times, and to update The bidding section asks about the position of the cloud layer, adjusts the construction plan at any time according to the weather conditions, and achieves "the sky changes and we change", and use enough sunny days to grab the construction and advance the project construction in an orderly manner.

“When it’s sunny, concentrate your'arms' to speed up the stable paving of the sub-base layer, so that even if it rains, the working surface can be kept clean and convenient for subsequent construction. The temperature is low in the morning and evening, and the road roller should closely follow the paver to ensure the rolling effect." As for how to speed up production, Wu Tao, secretary of the Party branch and chief engineer of the project department, has a lot of experience. Affected by the summer rainfall in 2019, there is great pressure to successfully complete the 2020 output value target, and the new crown epidemic at the beginning of the year has increased the difficulty of project construction. It is the unanimous goal of the construction team to make the old revolutionary zone pass the highway as soon as possible. The project department has adopted measures such as point-to-point chartered vehicles to pick up laborers to return to work, and sub-regions and batches to start work after isolation. At the beginning of March 2020, the smooth resumption of work was finally achieved. The first unit to resume work in 13 bids. During the construction, the construction team continuously overcome the mountainous climate change, low winter temperature, inconvenient transportation and other factors, and actively carried out labor competition. When the climatic conditions permit, through advanced deployment, uninterrupted construction was realized, and the effective construction period was less than one year. Under the circumstances, the paving of 1.325 million square meters of water-stable layer and 2.261 million square meters of asphalt layer was completed. In November 2020, the main pavement project of this bid section was successfully completed, becoming the first main project completion bid section of the whole line.

Xingfu Road, Old District

0°C, 130°C. These are the night temperature during the construction of the tender section and the surface temperature of the paving site. The temperature difference between day and night in the deep mountains is extremely large. Even in summer, the temperature at night is often as low as 0℃. In the daytime, the surface temperature during asphalt paving It reaches 130 degrees or more, which greatly tests the body and mind of the construction personnel. Nevertheless, the builders have always insisted on advancing construction and production, strictly controlling quality and safety, and ensuring a first-class quality road to happiness for the people of Pingliang. The main project has a large volume and a long front. In order to keep up with the effective working time during the main work period, the on-site personnel are often unable to return to the station when they arrive at a meal. They simply eat a boxed lunch at the construction site and continue to work. At the same time, in order to speed up the construction of the project, the project department adheres to the concept of "people waiting for materials" and deploys multiple shifts in advance to ensure uninterrupted on-site paving operations in the "connected shaft" mode. What is suffering is the environment, and what is warm is the heart. In order to allow the employees to have a comfortable living and office environment, the board houses of the project department implement centralized heating, and each dormitory is equipped with independent toilets and water heaters. "You can take a bath in your own room, and it feels like you are at home." When they returned to the station and washed off the sand on their bodies, the young employees of the project department were full of happiness. In addition, the project department insists on preparing overtime meals for night shift workers. In summer, it distributes sunscreen clothes, watermelon and mung bean soup to the scene, and cold-proof blankets and quilts in winter to make employees feel warm.

At the beginning of 2021, the ancillary works of the project have entered a tough period. The road shoulders, slopes, isolation belts, communication pipelines in the bid section...More than 10 processes are cross-constructed. The task is extremely difficult. Whether it can be completed on schedule is directly related to the opening time of the whole line. "Building a passageway as soon as possible to solve the current situation of local expressways is the original intention of all the employees of the five companies of the China Railway 18th Bureau Group since they entered the site." Project Manager Zhu Yihui said firmly. To this end, the project department has carried out party history learning and education to the front line of construction. Through the joint development of theoretical learning and first-line practice with the construction unit and the resident government, the party history learning and education will be alive and the faith of party members will be ignited. At the same time, the project department The party branch also established a vanguard team of party members to coordinate and serve various tasks for the bidding section every day, and make every effort to promote the construction and production of the project. In addition to speeding up the construction of the project, the project department has also helped local towns and towns build access roads, purchase local agricultural and sideline products and other warm-hearted assistance to help the locals consolidate the results of poverty alleviation and promote rural revitalization.

Keywords: state-owned enterprise style, engineering news

Since entering the venue, the five companies participating in the construction of the China Railway 18th Bureau Group have always been thinking of the people in the old district and overcoming various difficulties. After more than 2 years of hard work, the builders of the China Railway 18th Bureau have left a deep The deep imprint has played a battle song of rural revitalization for the areas along the route, adding the "Eighteen innings". After the Pingtian Expressway is fully completed and opened to traffic, the driving time from Tianshui to Pingliang will be shortened from the current 5 and a half hours to more than two hours. At the same time, the current situation of no expressways in the three counties of Huating, Zhuanglang and Qin'an will be changed. It is interconnected with Qinglan, Fuyin, and Lianhuo three national highways to further revitalize the transportation network in the western region.Editor/Xing Wentao