Han Yu took several deep breaths in succession and asked, "Is there any news from Angong?"
"Yes."
Old Wei picked up the duty phone record, glanced at it, and said, "The cause of the breach has been clarified. The breach is located at the Yanjiatai embanknt section, stake number 53 500 to 54 000, with a length of 500 ters. It belongs to Baogang Sixth Group in Malaysian Managent District of ngxi Town, and it is a danger section facing upstream impact.
The embanknt is 8 ters wide, with an outer slope ratio of 1:3 above 41 ters, and 1:22 below, no river beach, but a block stone slope protection project is in place. There is a second-level platform inside the embanknt, both with a slope ratio of 1:3. The first-level platform is 4 ters wide, the second-level platform is 6 ters wide, and below the platform is a marsh pit with water depths of 0.6 to 1.2 ters..."
Vice Mayor Qin frowned and said, "Salted Fish, from the basic situation, it looks like Angong County has put so effort into this embanknt section."
"Yes, such an embanknt section shouldn't breach."
Han Yu nodded and asked Old Wei to continue.
Old Wei took a small sip of water, looked at the phone record, and read, "On July 5th, a middle school student discovered a water spout at the edge of a grassy marsh and reported the danger to the watch booth. The watch booth reported it to the flood control command substation of the Hu Du River. The substation considered the danger minor and only reminded them to observe closely."
"July 5th?"
"Yes, it was discovered a month ago."
"I wasn't referring to that." Han Yu picked up the walkie-talkie again and called, "Shousong, Shousong, are you resting?"
"I just laid down, not asleep yet, Secretary Han, what's the directive?"
"No directive, just inquiring. Have you ever been to Yanjiatai before?"
"Yes, Master Xi and Master Yao found us at Yanjiatai."
"When you were over there, did you hear about any water spouting?"
"Yes, we received the news and went to encircle it with sandbags, made a filter well. The cadres of the Hu Du River command substation ca to inspect, said it wasn't a big problem, just asked the village cadres to keep observing and left."
"Nothing more, rest up."
Han Yu put down the walkie-talkie and looked at Old Wei again.
Old Wei quickly said, "On July 25th, an elentary school student found a fist-sized hole spewing water while herding cattle at the marsh edge. Upon investigation, it was only 0.5 ters from the second-level platform base, with an orifice diater of 0.05 ters, a sand pan of 1.5 square ters, a sand dune of 0.15 ters, and muddy water flowing out.
0.6 ters from the first erosion hole, another erosion hole with a diater of 0.01 ters was discovered. Under the command substation's requirent, a three-level filter surrounding well was built imdiately. anwhile, two more erosion holes appeared 0.5 ters from the base of the marsh second-level platform. One was resolved with a two-level filter well, and the other using a filter pile...
At 12:15 a.m. today, embanknt patrol personnel discovered, via motorcycle headlights during patrol, that the pond water upstream had almost risen to the newly constructed platform level. Simultaneously, they found a more than one-ter-diater erosion hole in a pond about 10 ters from the second-level platform base, turning out muddy water, and imdiately reported it to the command.
At 12:20 a.m., the embanknt began to collapse, with longitudinal cracks on the surface, crack width of 0.06 ters. By 12:40 a.m., the breach had widened to 30 ters. As of an hour ago, the breach had expanded to 185 ters, with an estimated maximum flow rate of about 900 cubic ters per second."
Another breach caused by erosion!
Deputy Division Commander Tao was silent for a mont, then said in a low voice, "Erosion is so difficult to control; why is it always erosion?"
"As early as July 5th, as early as the day we left ho, it was discovered! It's not that erosion is hard to control, but rather that it wasn't controlled at all. This is a breach that shouldn't have happened; it can be said to be a serious accident of negligence, dereliction of duty, and failing to control. "
"Salted Fish, didn't they control it, making filter wells and even filter piles?"
"That's not control; that's a makeshift solution. The only thod for controlling erosion risks is 'external block, internal guide.' They didn't do external blocking, aning locating and plugging leaks, nor did they do internal guidance correctly. In such situations, sub-dikes should be built around the pools to counteract with water pressure, rather than using earth to press down previously made filter wells and piles."
Han Yu took a deep breath and continued, "Moreover, knowing it's a dangerous section, knowing there is an erosion risk, in the 35 days from discovering the danger to the breach, there was no fixed team stationed for defense, no necessary ergency materials prepared, and no ergency response plan developed. This is dereliction of duty. Those responsible for flood control of the Hu Du River embanknt should be arrested and tried!"
Vice Mayor Qin couldn't help but ask, "Salted Fish, if Binjiang encounters such a situation, how should it be arranged?"
"First, find leaks to block them. If leaks can't be found, start with 'internal guidance,' which ans building filter wells. Then arrange a fixed team for guard duty, including cadres, young and strong labor forces, electricians responsible for lighting, etc. Communications must be guaranteed, and any changes in danger must be reported promptly. anwhile, sandbags, stones, and geotextiles should be prepared to deal with ergencies at any ti."
"Very professional. When we return, you can be transferred to the Office of Flood Control and Drought Relief Command as Deputy Director."
"Mayor Qin, don't joke around. I'm not professional at all. It's just that dealing with this now, you have to learn and understand a bit. What I just said isn't only known to ; all the soldiers in our battalion know this. We've organized training sessions and conducted tests after training."
"I almost forgot, you are the chief instructor of the military-civilian flood control and ergency rescue skills training class."
The subordinates and juniors perford excellently. Vice Mayor Qin felt proud and turned to say, "Deputy Division Commander Tao, Salted Fish started working in water law enforcent rescue at sixteen and began participating in flood control and ergency rescue. He may not understand matters on land, but when it cos to water affairs, there's nothing he doesn't know."
"Mayor Qin, it's not as exaggerated as you say."
"Not exaggerated. From the anchoring requirents proposed for the engineering fleet tonight alone, it can be seen that you always have a string of safety tensioned in your mind. If it weren't for Ningning at the Port Supervision Bureau, Old Zhu would have transferred you to the Port Supervision Bureau long ago."
User Comments
0 comments from readers