This is how the miracle happens
Add:2015-07-23 17:07:59 views:
--the great flood diversion project of Jingjiang
“The dangerous part of the Great Yangtze River is in Jingjiang”. According to historical data, from 1380 to 1937, there were 101 floods at the levee of Jingjiang. As soon as the new China was founded, the party and country place priority on the construction of flood-control system of Yangtze River. On 1952.3.31, Government Administration Council of the Central People's Government issued “Regulation of flood diversion project of Jingjiang”, the flood diversion area is on the east of Taiping Port, Hudu River on the south bank of Jingjiang, west of right levee of Jingjiang, northwest of Ouchi Port, Anxiang River, which covers an area of 921.34 square kilometers. The project of flood diversion of Jingjiang is divided into two phases, the first is the main construction (including the flood inlet brake, regulator and barrage, reinforcement project of Jingjiang’s levee, levee maintenance, destroying of cross levee in the flood diversion area and other sporadic projects), the second phase is the ancillary construction. On 1952.4.5, the first phase of project fully starts, and it’s completed on 6.20, the construction period is 75 days, 15 days shorter than planned. In the 1930s, US constructed a flood diversion area in the downstream of Mississippi, the engineering quantity of which is 1/3 of the flood diversion project of Jingjiang, but it takes three years to complete. After the completion of flood diversion project of Jingjiang, foreign friends exclaimed in great surprise when visiting, calling it the unbelievable miracle.
There are 300,000 people participating the flood diversion project of Jingjiang, 40,000 workers, 160,000 farmers and 100,000 liberation armies, and millions of people were motivated to give logistic support. In the construction site of flood inlet brake of Taiping Port, over 88,000 people selflessly worked; 100,000 labors were busy on the 22-km barrier of Dongting Lake--the population density up and down the south levee is 4500 people per kilometer.
The time limit of the whole project is 75 days, including 11 rainy days, 9 half-rainy days and the project is carried out comprehensively during only 61 sunny days. Nights will be regarded as days and workers should catch every sunny nights, thus realizing implementation days and nights and overcoming this difficult. While summarizing the main experience, Xuziwei, the deputy director-general of the Ministry of Director General of Jinjiang, wrote that the major characteristics of the work is to depend on labors to achieve task. Miracle is the result of a series of arduous mobilization and organization. On 29th April, 1952, the Ministry of Director General issued a document called Appeal about Completing the Overall task of Red May Patriotic Labor Competition, then the whole site immediately carry out the Red May Competition, thus initiating a new movement to promote the construction. On 20th to 24th May, 1952, Fuzuoyi, the minister of Central Ministry of Water Conservancy, led a delegation to the site and gave a silk banner embroidered with the inscription of Chairman Mao and Premier Zhou. The former’s inscription was: proceeding from the interest of the overwhelming people, we should strive for the victory of the Flood Division Project of Jinjiang; the latter’s was : the river should be beneficial to all people. Under the great inspiration, the efficiency has been enhanced obviously. In the competition, there were more than 12000 variously meritorious statesmen, hero and models, including father-son hero, couple models, brother -sister glory and master-apprentice contribution. Irrigated concrete need a lot of gravels.Xinzhiying, a 19-year-old Songzi girl, created kite turning stone method, which means that the spurs of poly-hedrosis stones should be downward and flat surface should be up, just like kite, then use hammer to strike it. She, together with people knit a hoop with straw bags and sacks to band the stones, then strike them strongly. As a result, the efficiency has been improved by 30 times.
Tangren and other people of Jianghan Boat Company collectively invented a method to use a kind of semi-circle iron plate to fix the strobe of Jin Flood Floodgate, making 378 brackets on this 1000-meter brake on a line, the deviation just being 1 to 5 cm. This has improved the precision substantially and the efficiency has been improved by 7 times.
Wangxiancheng, deputy chief of the design section of the middle reaches of the Yangtze River Water Conservancy Committee, put forward a method of changing the paving of rebar on the basis of design drawings and construction site of the South Gate floor according to precise calculation. He suggested that the number of rebar on the sluice floor should be decrease from 8 bases to 3 bases per meter. The suggestion of Wangxiancheng accelerated the progress of floor reinforced concrete project and saved 75 ton rebars for this project.