Faith in the Snowy Plateau

The "Faith" of the Snowy Plateau"

 

Lhasa, a snowy place famous for its beautiful scenery, long history, strong religious atmosphere and unique customs and customs, is wrapped in a pure pious atmosphere. Many pilgrims from afar, heading in the same direction, or turning the sutras and chanting, or kowtowing their heads step by step, what they do is the sacred faith in their hearts.

In this holy land with an altitude of 3680 meters, there is a group of young people who adhere to the belief that "there is no lack of oxygen and spirit, and the altitude is higher". In this holy land of high sky and thick soil, they persevere, devote their youth and pursue their dreams. With their own practical actions, they write their inner "faith" and outline a history of struggle and entrepreneurship of "northerners in urban construction" in the snow covered plateau, they are the Li Hongliang project management team of the municipal division of Beijing Urban Construction North Group, which is responsible for the construction of the traffic congestion node reconstruction project at the south bridgehead of Liuwu Bridge in Lhasa.

 

The responsibility of Beijing enterprises

After a nearly five-hour flight, the plane from Beijing to Lhasa landed steadily at Gongga Airport. Although I was psychologically prepared before departure, I suddenly landed at an altitude of nearly 4000 meters. The altitude sickness of tinnitus, chest tightness, and dizziness still caught me off guard ".

Walking out of the airport, Li Hongliang waved to us at the exit and brought us the hada, which symbolizes purity and blessing. When Vice Chairman Hu Xiang held his hand, he looked at Li Hongliang, who was black and thin with "plateau red" in front of him, but he was "not in line" with the white and clean and well-proportioned figure he had seen in the municipal project of Pingge in Beijing ".

And he, came to Lhasa only less than half a year. In the past few months, he has lost more than ten pounds.

"The local people are looking forward to our project being put into use as soon as possible, and we dare not delay it for a minute," Cui Wei, deputy general manager of the group and general manager of the municipal business department, told us on the way back to the project department. Lhasa has a special terrain and traffic conditions. In order to successfully complete the grand goal of "building a well-off society in an all-round way across the country", facing the relatively backward local urban transportation infrastructure, insufficient service capabilities such as public transportation network density and station coverage, high annual growth rate of local motor vehicles, and more transit traffic After careful investigation and analysis, the Lhasa Municipal Party Committee and Government took the Liuwu Bridge traffic congestion node as a breakthrough to carry out road transformation and upgrading, in order to alleviate traffic pressure.

Construction site (aerial photograph)

 

Only through the road, people's life will be more convenient. The intersection of Liuwu Bridge and Century Avenue bears too much transit traffic from the airport expressway and railway station in the urban area, resulting in excessive traffic in the local direction of the intersection. Therefore, the local government through the traffic network upgrade, to further improve the people's livelihood in Lhasa. The project mainly includes the splicing of the newly-built bridge and the existing bridge. Through the construction of ramp A, the connection between Liuwu Bridge and South Ring Road is realized. The reconstruction scope is 437.74m, the ramp is 335.251m, the bridge width is 8.55m, and it is divided into 13 spans and 5 links. The bridge structure type is prestressed concrete continuous beam.

"Even if there are various difficulties, we will complete various construction tasks with high quality and on schedule". At the symposium, Li Hongliang's sonorous and powerful voice gave the leaders present a "reassurance". The power of faith is infinite. This young team, with an average age of less than 32, is advancing at full speed towards the "belief" of "fulfilling the contract on schedule" with the morale of newborn calves not afraid of tigers.

 

The test of the plateau

"Liu Zong, Liu Zong..." The project department came the voice of Liu Wei, deputy general manager of the municipal business department. Liu Wei hurriedly took off the oxygen tube inserted in the nose, small steps ran out of the office. He arrived a few days earlier than us, and these days have been spent in the "torment" of altitude sickness. "You have good physical fitness, and the altitude sickness is not strong, so I am a little overwhelmed," Liu Wei said with a smile. "When I came back from the scene, my chest was tight and I couldn't breathe. I took a little oxygen to relieve it."

Although there is a clear and transparent blue sky, a towering mountain, a sacred lake with holy jade beauty, and a cute yak, there are also strong ultraviolet rays, severe altitude sickness, and relatively scarce supplies ...... "Sometimes you have to stop for a few breaths to say four or five words", said Heng Kun Peng, head of the project department's survey, "the nose bleeds when you exercise violently". The air in Lhasa is thin, and the oxygen content in the air is only 60% of that in the mainland. When I first arrived in Lhasa, high-grade symptoms such as chest tightness, shortness of breath, dizziness, physical fatigue, abdominal pain and vomiting occurred from time to time, not to mention "jumping up and down" at the construction site. "There is no good way, you can only rely on your own body to adjust, and it will be good to adapt," said safety officer Zhao Yan.

Oxygen cylinders have become a regular part of the project department.

Speaking of "altitude sickness", it is really endless "bitter tears". Jia Ruiguang is the deputy general manager of the municipal business department and the person in charge of the Lhasa project administration and materials. At the beginning of the establishment of the project, he and Li Hongliang, who were nearly 50 years old, were the first to come to Lhasa to visit and investigate the local market, laying the foundation for the preparatory work of the project and ensuring the construction of the later project. Due to the special environment of the plateau area, he suffered from high altitude hypertension, palpitations, shortness of breath, and rapid heartbeat, but as an old comrade, he still stuck to his job and "slightly injured the line of fire". During the few days in the project department, I could see him running back and forth with a big schoolbag on his back every day, because the schoolbag contained a list of local material suppliers and a project construction schedule. No matter where he goes, as long as the construction needs, he can always respond as soon as possible without delaying the progress of on-site construction.

When Cui Shuang, deputy manager of the municipal business department, chief economist, and Wang Ying, deputy manager of project management, first arrived in Lhasa, they couldn't sleep for many nights and needed more than two hours of oxygen inhalation to take a nap. In the process of preliminary design budget estimate, Cui Shuang led the management team to overcome the unfavorable factors such as high local labor cost, unfamiliarity of the consulting company with the local quota, and difficulty in on-site construction. Under the circumstances of severe lack of sleep and oxygen inhalation in the hospital, the preliminary budget estimate task was successfully completed and passed the expert group review smoothly.

In the face of the "Sunshine City", which has a total of more than 3000 hours of sunshine every year, sunscreen, straw hats and long shirts have become "tight goods". Due to the high terrain, low air density, good atmospheric transparency, long sunshine time, and high-intensity ultraviolet radiation, the originally white and handsome managers have left the mark of this holy land-"plateau red" on their faces ". "When the sun is strongest, our faces will peel." Material officer Wang Yunfei said with a smile.

In Lhasa, drinking a bowl of slow-boiled millet gruel becomes a "luxury". Affected by the high altitude, the air pressure in the territory is lower than that in the mainland 2/3. The water reaches the boiling point when it is boiled to 80 ℃. Dumplings and noodles are not cooked, let alone a bowl of millet porridge. At the beginning of construction, in order to enable everyone to eat delicious food, the project department bought a pressure cooker and a high-pressure steamer and tried to cook with a pressure cooker. At first, due to inexperience, the pressure time of the pressure cooker was not easy to control. A good pot of noodles and dumplings was sometimes not cooked well, and sometimes they were cooked directly. "Originally, I wanted to eat a bowl of noodles in soup. When I opened the lid, I didn't expect to become noodle soup". Now, after exploration, the project department has also found the law, and specially hired chefs from Sichuan to do a good job in logistics support for the front-line employees.

 

difficult contest

"Smack!" Liu Xiaoyong, chief engineer of the municipal business department, heavily photographed the planning scheme on the table of the conference room. Recalling the scene of approving the construction plan at the beginning of the project, Li Hongliang still had "lingering fears".

"The cap and cap beam part belongs to mass concrete construction, which is one of the key points in our technical management. The temperature difference between day and night is nearly 20 degrees, the air is so thin, the concrete forming time is so long, is the construction period allowed? I feel that what we wrote is still not detailed!" The meeting broke up unhappily. After leaving the conference room, Li Hongliang combed the plan word by word with Yuan Yongcheng, chief engineer of the project, and re-analyzed the details behind each process in combination with the actual situation on site. It was night, and they were sleepless.

At five o'clock the next morning, a new construction plan was freshly "released". "The concrete shall be upgraded by a label, and the technical requirements shall be clarified with the supplier, and the temperature of the concrete shall be strictly controlled. At the same time, the temperature measurement scheme is formulated, the temperature measurement points are arranged according to the specific conditions of the design, and since the completion of mass concrete pouring, special personnel are arranged to measure the temperature regularly, monitor the temperature change of concrete, timely feedback relevant information, and take corresponding measures according to the temperature measurement results. Winter construction is mainly to strengthen the control of mix ratio and admixture, as well as on-site insulation work ......" This time, along with Li Hongliang's "confident" explanation, a reasonable and complete construction plan is on paper......

High quality concrete forming of cover beam, good impression

Due to the construction of the overlapping parts of the new and old roadbeds on the site, and the high-fill sections in some sections, the connecting parts of the new and old roadbeds and the high-fill sections are the key difficulties in construction quality control, but Xu Yanming, deputy production manager, has long been confident. "The project department will fill the high fill section in advance and reserve the settlement time of subgrade; Excavation steps are taken at the overlap of the new and old roads, the width and height of the steps are strictly controlled, special personnel are assigned to be responsible for quality control on site, the thickness and compaction of backfill are strictly controlled, and settlement observation is made."

Over the years, the "Beijing Urban Builderers" have actively participated in national development and capital construction. In Yushu, Shifang and other areas, in the face of urgent, difficult and dangerous projects, as long as the motherland and the people need it, they are the first to stand up and set up Guangxia Wanjian, Monument seat. In the process, "urban builders" have accumulated rich construction experience and superior resources in urban construction, rural roads, traffic planning, etc., which are fully reflected in the Lhasa project.

The workers are tying up the steel bars

Facts speak louder than words, and tangible results are achieved through practical actions, more than any words. Now, with the joint efforts of the project team, 36 pile foundations, 13 caps, and 14 piers and abutments have all completed the construction tasks. The prestressed tensioning, grouting and anchoring of the box girder of the fourth joint (8-11#) have been completed, the binding of the bottom plate reinforcement and web plate reinforcement of the box girder of the third joint (5-8#) has been completed, and the erection of the box girder frame of the fifth joint (11-12#) has been completed. The management level of high quality, high standard and high speed has not only been highly recognized by the superior units, but also fully affirmed by the territorial government.

They stood on the roof of the world, laughing to see the eagles spread their wings; they ran along the banks of the Lhasa River, listening to the roar of machinery. The entire project management team is taking vigorous steps towards the goal of delivering on schedule. Gesang flowers open, happiness road wide. Maybe we will encounter more storms in the future, but we will certainly see more rainbows on the way. It is believed that under the joint adherence of the "northerners of urban construction", their "belief in snow lotus" will proudly "bloom" in this high land holy land, composing a prosperous age and benefiting the people of one side.

Tashi Dele!