At 8:22 a.m. on July 18, a 188-meter break at the Poyang Zhongzhou polder in Poyang, Jiangxi, took 118 hours.

  On July 9, Zhongzhouxu, Changzhou Township, Poyang County, was flooded for a long time, coupled with the poor soil quality of the levee body and weak seepage resistance. The dyke broke at about 21:35 on the same day.

  Zhongzhou polder is a 10,000 mu levee, with 15 administrative villages under its jurisdiction. The levee line is 33.72 kilometers long. The levee protection area is 23.8 square kilometers. It protects 22,100 mu of cultivated land and protects 34,000 people. The design standard is once every ten years. . According to the site survey, the breach is 188 meters long and the crest is about 8 meters wide.

  At 10:00 on July 13th, as the first vehicle stone was thrown to the rupture, the rush to block the emergency rescue battle officially started. A tow truck loaded with sand and gravel picked up a long dragon on the embankment line, and the blocking personnel implemented the "two shifts" full-time operation method, and worked in shifts of 12 hours per shift-to ensure that "the man-machine did not stop".

  Until the evening of the 17th, 6 excavators, 1 bulldozer, 1 loader, and 250 dump trucks were put into the upstream working face, and 4 excavators, 2 bulldozers, 1 loader, and 119 dump trucks were put into the downstream working face To start the blocking operation.

  Rescue personnel overcame difficulties such as high temperature, long distance, road blockage, water depth, and narrow dike height, and adopted the two-way mechanized advancement and occupational blockage warfare method of “single stand up blockage, two-way occupation, mechanical cooperation, and rapid disposal”. Finally, this morning The blocking was successful.

  It is reported that after the closure of Helong, it will also organize the work of filtering clay and increasing the thickness of the dike after Helong to restore the original appearance of the dike body and ensure the stability of the dike structure and seepage prevention.

  Huashan Xu Yinghua Zhuang Liangzhi Tan Mingyu Editor Guo Shihao

Editor in charge: [Tang Weijie]