【Explanation】Since entering Meimei, Hubei Province has experienced many rounds of heavy rainfall, and the water level of Changhu, the third largest lake in the province, has continued to rise, reaching a record high of 33.57 meters at 10:00 on July 12. Afterwards, the Yinjiang-Jihan project began to skim the floods, and the water level in Changhu gradually declined.
[Commentary] From the evening of July 15th to the 16th, the reporter went to Shayang County, Hubei Province, went deep into the local flood control line, visited the Jijiang-Jianghan project to divert the flood, and patrolled the embankment with the flood control staff to check the danger.
[Explanation] Changhu Lake is located at the junction of Jingzhou, Jingmen and Qianjiang in Hubei Province. According to the dispatch of Hubei Provincial Department of Water Resources, at 8:22 on July 14, the 8-hole floodgate of the upstream of Shiqiao River of the Yinjiang-Jihan Project was fully opened, and the floodwater of the Shiqiao River was introduced into the Yinjiang-Jihan Canal. Thus officially began to flood.
[Same period] Yi Guangbo, director of the Shiqiao River Hub Management Office of the Shayang Branch of the Yinjiang Jihan Engineering Management Bureau: This is a road map of our Jinjiang Jihan Project. This place is the Longzhou Embankment in the Jingzhou section of the Yangtze River. This is through our sand In the ocean, finally enter the Gaoshibei Town of Qianjiang River, downstream of the Xinglong Water Control Project (project). This time, we opened the upstream sluice gate of the (Shiqiao River), let the water of the Shiqiao River pass through the upstream sluice gate, and directly enter the Han River through the channel that leads to the river and the Han River. After the water level of the Shiqiao River has been lowered, the water of Changhu Lake It can also flow in reverse through an inverted siphon, flowing into our main channel of Yinjiang Jihan, and then finally to the Han River, which achieves the purpose of flooding the Changhu and Shiqiao Rivers.
[Explanation] It is understood that the Shiqiao River is the main river flowing into Changhu Lake, with a watershed area of 1,134 square kilometers, accounting for 50% of the Changhu River Basin area. After the upstream floodgate was opened, the water of Shiqiao River and Changhu Lake entered the Yinjiang-Jihan channel at a rate of 100 cubic meters per second. According to estimates, as of 8 o'clock on the 16th, the Yangtze River-Jihan project has accumulated 17 million cubic meters of floods, which has greatly reduced the pressure of flood control in Changhu.
[Commentary] At 8 o'clock on the 15th, at the mouth of Changhu Lake-the flood control section of Changhu Qiaozi Lake Wai Hougang, Hougang Town, Shayang County, the flood control personnel received a flashlight, picked up a wooden stick, and began the day’s The 20th patrol. On the dry embankment of Changhu Lake, the night is quiet and the breeze is used, but the street lights and the flashing torch lights that are lit every 20 meters still reveal a sense of tension in flood control.
[Commentary] From July 11 to the present, Li Jie, deputy director of the Shayang County Government Office and person in charge of patrol and defense of the Waiqiaozi Lake Embankment, conducts night shift patrols with other villagers every day. During the inspection, they lowered their heads, hooked their waists, and moved the weeds with wooden sticks to help each other and take care of each other, focusing on seeing whether there were dangers of seepage, leaching, and pipe surges on the back surface of the dam.
[Same period] Li Jie, deputy director of the Shayang County Government Office of Hubei Province and person in charge of patrol and defense of the Waiqiaozi Lake embankment: Our patrols are arranged in this way, generally in the (flood control) section where our county-level units and lead units are stationed , In groups of two, patrol once an hour, 24 hours a day without interruption, and then when we patrol the embankment, focus on patrolling the water surface and the back water surface, especially the back water surface, we found in the process of patrol scatter, We have marked some small loopholes, so we must focus on observation.
【Explanation】As of 10:00 on July 16, the water level of Changhu Lake has dropped to 33.24 meters below the highest flood level, but it is still beyond guarantee (33.00 meters). Despite the drop in water level, neither Li Jie nor the flood control staff was at all relaxed. He introduced that the main work at present is to prevent large-scale precipitation and storms, and lay oil tarps in the embankment, raise the dam, increase the number of inspectors, etc. The dike is safe.
[Same period] Li Jie, deputy director of the Shayang County Government Office in Hubei Province and head of patrol and defense of the Waiqiaozi Lake embankment: the more the water level drops, the less we can relax our vigilance, and the hidden dangers often occur at this time. First As the water level drops, people are prone to slack off. Second, when the water level drops, the pressure of the water changes. After the internal structure and balance are broken, it is more likely to collapse and other dangerous situations.
[Commentary] According to reports, as of July 15, Shayang County had a total of nearly 100,000 people to defend the embankment, of which 86,000 people were deployed along Changhu.
Dong Xiaobin Guo Xiaoying Zhou Xingliang Hubei Shayang reports
Editor in charge: [Wang Kai]