Goodbye, "Gas Bag", Dadu River Road, Shanghai!Asia's largest dry air cabinet completes the main structure demolition

Recently, the removal of the dry air cabinet demolition project 1912 in Daduhe Road: After one week of demolition of No. 1 air cabinet, the last wall board of the No. 2 air cabinet was completed, marking the two largest in Asia in Asia. The dry air cabinet, the demolition of the main structure has been completed.

The two 300,000 cubic meters of air cabinet was built in 1990 and completed in 1994. The cabinet is 106 meters high, nearly 70 meters in diameter, and the maximum daily peak adjustment capacity is about 540,000 cubic meters, which can meet the daily amount of gas of 500,000-6 million residents.

He has witnessed the era of gas development

As the lifting instruction was issued, the steel wall plate of the last No. 2 air cabinet was slowly lifted, and slowly tilted down. With the "Gas Bag" with Dadu River Road for more than 20 years, watching them from the construction, putting production to the demolition, Chen Hao, the webmaster of the Daduhe Road Storage Station of Gas City, Shanghai Gas City, was very complicated, and silently raised his mobile phone to freeze. This historic picture. "At this moment, it is more expected than reluctance." Chen Hao said that the "gas bag" of Dadu River Road witnessed the era of gas development. After natural gasization in Shanghai, it still served as a reserve gas source. More than years.

Once the towering Dadu River Road gas bag

The reporter learned that in the 1990s, in order to implement the decision -making deployment of the Shanghai Municipal Party Committee and the Municipal Government's "eliminating coal gloss furnaces and realizing the gasification of the city", Shanghai City Gas implemented a leapfrog development and achieved the city's gasification goals in advance. In this context, as an important infrastructure of Shanghai Gas through technological innovation, independent design, independent construction, and successful investment, the completion and operation of Dadu River Road dry air cabinet not only fills the gas gap in the northwestern part of the urban area It also played a pivotal role in alleviating the pressure of the city's atmosphere peak.

According to the local information of Shanghai, by 1990, Putuo District used pipeline gas to reach 127,000 households, accounting for 54.2 % of the total resident households in the region. At that time, there were 22 gas bags in Shanghai, which provided artificial gas from 2.37 million households in the city. The city's artificial gas supply reached 1.87 billion cubic meters, and the maximum gas daily cost of more than 8 million cubic meters.

With the optimization and adjustment of Shanghai's energy structure, in 2015, Shanghai realized the full natural gasification of urban gas, and the use of artificial gas for 150 years bid farewell to Shencheng. However, the Dadu River Luqi Cabinet still assumes the function of natural gas storage and peak adjustment, and "contributes the heat" to ensure the safety supply of 460,000 residents and industrial and commercial customers in Putuo. It can be said that they not only played an important role in the era of gas development, but also played a role in stabilizing and protecting the supply of gas sources as a supplementary reserve gas source after all natural gasization.

The construction of the test exceeded the test exceeded expectations

After 7 months, the demolition of the "Gas Bao" demolition of Daduhe Road encountered an epidemic and temporarily stopped. After the construction was restored, it encountered a rare high temperature. Under the test, the tunnel shares that undertake the demolition project Shanghai Nengjian Shibei Engineering Company, overcome various difficulties, optimize cutting and lifting operations, and accelerate the progress of the project. When cutting the steel wall board, the construction party found that the cutting guns used by the operation were too short. When cutting, the operators should not only be baked at high temperature, but also tolerate the high temperature when cutting guns. After the company understood the situation, he held an optimization work meeting, and finally decided to extend the length of the gun tube. "Let's find the manufacturer to customize the gun and extend the original length of 80 centimeters to 1.35 meters, so that the operator is far away from the fire." Ye Xiangyi, the person in charge of the scene.

Multiple steps need to be carried out in dismantling the air cabinet to ensure that all potential risks are eliminated

Special soft ladder used by the construction personnel when cutting the wall board

Considering that the air cabinet itself is made of steel, at high temperature, the temperature of the steel plate can reach above 50 ° C, and the construction party has strengthened the on -site protection and heatstroke cooling measures of the operators. "We have improved the level of protective supplies. For example, the shoes are buying a thick bottom, there is sufficient salt water supply every day, and the company also equipped us with heatstroke and cooling materials." The construction staff told reporters.

Depending on the height of the wall of each cabinet, and the identity of the sink, the construction party adapts to local conditions to adjust the pedal of the special soft ladder to the same as the slot steel, which is convenient for the operators to improve the work efficiency.

In order to cope with the adverse effects brought by high temperature, the construction party also adjusted the operation time, adopted the operating mode of "two ends, intermediate rest", and promptly pay attention to the weather forecast of "Shanghai release". Adjust or suspend operation. "The red warning is absolutely not allowed to be constructed. If the orange warning will see the temperature, the morning operation is concentrated at 5 am to 9:30 in the morning, and the construction will be carried out at 3 or 4 in the afternoon." Said Yu Hongwei, director of the project supervision team, said.

Last wall board landing

The construction party also further optimizes the construction plan, and the step -by -step operation to cross -operating operations to speed up the demolition work. "We merged the same demolition process of the two air cabinets. The same procedures of each gas cabinet operated synchronously to save time and ensure the coherence of workers' operations." Secretary Cheng Wensing introduced.

The residents of Building 39, an Oasis Apartment, which are separated by the "Gas Bag" of Dadu River Road, also witnessed the launch of the last wall board in the window. "It's finally removed today, and now the sight of my window is very good." Zhu Fucheng said happily that the couple were excited and immediately sent a circle of friends.

Looking at the demolition work that is expected, the resident Hua Baojin is both surprised and amazed, and we look forward to the new appearance of the future."Since the recovery of construction in June, it has been a day, and I witnessed the" gas bag '"disappearing'. It is really amazing. We feel that the government is increasing and promoting.. "In the future, it will become the place where Shanghai Putuo Zhenru is located.

In the future, the original sites of the two gas buns will become the location of the urban sub -center of Shanghai Putuo.Focusing on the overall goal of building the "Famous Sports City in the World" in Shanghai, through the function upgrade and quality environment of the stadium, the plot will be built into a "Western Shanghai Sports Competition Center+National Sports Fitness Gathering Center".

Liberation Daily · Shangguan News Original manuscript, reprinting without permission

Author: Zhou Nan Yiwen

WeChat Editor: Ta Ni

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