Due to the flood in the southern part of the swamp, the exercise was postponed, and the troops took advantage of this gap to seize the time to carry out education on the building of a clean and honest government at the grassroots level, and at the same time make good preparations for flood fighting and emergency rescue. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 ｉｎｆｏ

This year's floods are frequent, and the Yangtze River basin has been flooded for the worst time since the mid-fifties, exceeding the highest water level in history, and has been high for more than 40 days.

The situation of the Yangtze River embankment is grim, the embankment has burst in many places, and millions of soldiers and civilians are still fighting along the river defense.

240 million people and animals were affected, and more than 2,000 people died. Yesterday, the water level began to show a downward trend.

The Songjiang and Nejiang river basins in the northeast are also facing a test, with the highest water level in history, the river water swelling, the railway being washed away by flash floods, and the two provinces of Longjiang and Jilin have gone all out to fight the floods.

As a combat readiness duty regiment of armies and divisions, the 447th Regiment pays close attention to the water situation and is ready to dispatch emergency at any time.

This morning, the education was carried out as planned, and Zhao Yanliang, an instructor of the company, gave a lecture on "Understanding the Grim Situation of the Flood Disaster and Strengthening the Sense of Urgency and Responsibility for Completing the Flood Fighting and Disaster Relief."

"The topic of my lecture today is "Recognizing the Grim Situation of Flood Disasters and Strengthening the Sense of Urgency and Responsibility for Flood Relief Efforts."

It mainly focuses on five issues: 1. Recognize the grim situation of flood disasters; 2. Implement the important speech of the chairman, carry forward the fine tradition and style of continuous combat, and dare to fight against the flood; 3. Take the heroes of flood fighting as an example and establish a good image of soldiers; Fourth, all actions are subject to command and reduce unnecessary losses; Fifth, breathe the same breath and share the fate with the disaster areas, and enhance the sense of urgency and responsibility for completing the disaster relief tasks.

First of all, let's talk about the first question: recognize the grim situation of flood disasters.

This summer, the Yangtze River basin erupted in the worst floods since the mid-fifties, exceeding the highest water level in history, and has now been high for more than 40 days. The situation of the Yangtze River embankment is grim, the embankment has burst in many places, and millions of soldiers and civilians are still fighting along the river defense.

The Songjiang and Nejiang river basins in the northeast are also facing a test, with the highest water level in history, the river water swelling, the railway being washed away by flash floods, and the two provinces of Longjiang and Jilin have gone all out to fight the floods.

I will begin with several manifestations of flood hazards: pipe surges, leaks, overflows, breaches and slope setbacks.

Let's talk about Guan Yong first.

The phenomenon that the soil particles in the dam body or dam foundation are carried away by seepage is called pipe surge, which refers to the danger of 'flowing soil' and 'latent erosion' in the flat land in the embankment under the condition of high water level in the flood season. This kind of danger is generally called turning sand and drum water in Hubei, and it is called bubble spring in Jiangxi.

When the pipe gushing occurs, the water surface appears to turn over flowers, with the upstream water level rising, the duration is prolonged, the danger continues to deteriorate, a large amount of water gushing and turning sand, so that the embankment, sluice foundation soil skeleton damage, the pore expands, the foundation soil is hollowed out, causing the collapse of buildings, causing accidents such as embankment bursting, dam collapse, and sluice reversal.

Pipe surges occur because:

First, the foundation soil gradation of dams and sluices lacks some non-cohesive soil with intermediate particle sizes, and when the upstream water level rises and the infiltration slope drop at the escape point is greater than the allowable value of the soil, the finer soil particles in the foundation soil are pushed away by seepage to form pipe surges;

Second, the foundation soil layer contains a strong permeable layer, and the soil layer covered above is not heavy;

Third, the project seepage prevention or drainage (seepage) facilities have low efficiency or damage and failure;

Rescue and protection method of pipe surge: temporary interception and back guidance, and combined pressure conduction to reduce the seepage pressure and prevent the seepage from bringing out the sediment.

The first is to build a reverse filter well.

Bags of soil were built around the water holes to build a well. The bottom of the well wall is in close contact with the ground, and the well is divided into sand and gravel or firewood and grass filter materials according to the requirements of three-layer filtration, and a drainage pipe is installed at the wellhead to drain away the seeping clear water to prevent overflow from collapsing the well wall.

If the water inrush is large and the coarse sand cannot be suppressed, you can first fill the gravel and block stones to sanitize the water potential, and then lay the filter material according to the reverse filtration requirements, pay attention to the defense, and the packing sinks, then continue to fill until it is stable. This method is suitable for the situation that the foundation soil quality is good, the pipe gushing is concentrated, and the danger is more serious.

The second is to build a water basin.

In the pipe gushing around the well, with soil bags to build a well, the well is not filled with filter material, the wall of the well must not leak, such as the danger area is larger, when the foundation near the danger is good, can be built into an earth embankment, form a reservoir (i.e., water basin), do not let the seepage flow away, water storage raises the water level in the well (pool), in order to reduce the water level difference between the back, to stop the development of the danger. This method is suitable for the situation that the water level difference is small and the duration of high water level is short, and it can also be combined with the reverse filter well.

The third is the water filtration pressure leaching table.

Layer and fill coarse sand, stone chips, and gravel on the surface of a large piece of pipe, thin and coarse, with a thickness of 20cm on the left side of each layer, and finally a stone or soil bag is pressed. If there is a lack of sand and gravel, you can use straw and willow to make a firewood row (thickness 15-30cm), and then press the stone or soil bag, and the bag can also be pressed with sand, and the thickness is limited to not make the firewood and grass too tight. This method is suitable for the situation that the number of pipe surges is large and the range is large. If there is a pipe surge underwater, do not drain the water and refill it. so as not to worsen the danger.

Flowing soil is another form of permeability deformation. The forms of seepage deformation generally include pipe gushing and flowing soil, contact scouring and contact flowing soil. In the non-cohesive soil, the flowing soil is manifested by the simultaneous movement of particle groups, such as spring groups, sand boiling, soil tumbling, etc., which are finally supported by seepage. In cohesive soil, it is manifested as the uplift of soil blocks, expansion, floating, fracture and other dangerous conditions. The rescue method is the same as that of Guan Yong.

The development of pipe gushing and flowing soil will lead to cracks and subsidence of the embankment. At the same time of rushing to protect the pipe surge, we should quickly rush to protect the berm and be in danger. The outside side is closed, the flood prevention is leaking along the joint, and the embankment is strengthened and raised, and the flood prevention does not overflow ....... ”

As the instructor was speaking energetically, the correspondent came to report: "After receiving the notice from the battalion headquarters, the officers and men of all companies should immediately assemble at the battalion assembly site, and the whole battalion should hold a mobilization meeting. ”

At half past nine o'clock in the morning, the officers and men of the whole battalion gathered at the battalion assembly site, and Instructor Lan gave a speech to mobilize and demand that the officers and men of the whole battalion make preparations for flood fighting and rescue before 12 o'clock.

After the battalion mobilization meeting, the company organized its own company to carry out flood fighting and rescue mobilization.

Company Commander Ji took the book, and in the club on the third floor of the company, he began to speak:

"The procedure for carrying out the task of flood fighting and rescue is: the regiment issues an advance order; The battalion convened the battalion party committee; The company held an enlarged meeting of the branch committee; Listen to the order to assemble urgently.

The maneuver scheme of our company is......

One row, two rows, backpacks, with raincoats, water bottles, take the first transport vehicle, the car number is XXXXX, and seat 35 people.

One row gets on the bus from the left side of the front of the bus, and the shifts are lined up in two ways, and sit in the car. When boarding the train, the platoon commander organizes and stands in line, and the platoon leader serves as the safety officer. The fighters went all the way, got on the bus with their backpacks, and after getting on the bus, they put down their backpacks and lined up in two columns, and the passengers sat on their own backpacks. The transport vehicle is led by the company commander and deputy company commander.

The cooking crew took the second car, the car number was XXXXX, and there were 15 people. Load the cooking truck and load the logistics supplies. The instructor and deputy instructor will lead the car.

The left-behind personnel, the technician is in charge, prepare the seal, check whether the water and electricity are turned off after the personnel set off, and then affix the seal. ”

Instructor Zhao also emphasized four points, one is to recognize the situation and keep a clear head; the second is to carry forward the spirit of hard work, hardship and hard work; the third is to pay attention to safety; Fourth, carry forward the spirit of cooperation.

The sky is pressed with dark clouds, and the mountain rain is about to come, and the wind is full of buildings.

The troops were immediately deployed, and the officers and men ran to the armored vehicle yard to retrieve the materials used in the exercise, such as grain, coal, shovels, and firewood, from the armored vehicles that had been loaded.

Yang Wenbin also joined the torrent of materials, he carried a bag of 100 catties of rice and walked back, although he took two breaths halfway, but finally persevered.

"I should be mentally prepared to endure great hardships, sweat profusely, and even dedicate myself to being tempered in the fight against floods." Yang Wenbin secretly made up his mind.