The two rescue methods have their own advantages and disadvantages, although the first method is far away from excavation, the working face is difficult to spread, can not accommodate more rescue workers construction, machinery and equipment are difficult to go up, and the slow time is relatively long, but it is better to be safe, because it is dug down from the mountainside, the rescuers are located on high ground, the groundwater is the most, the highest, and it will not affect their construction, as long as the timely digging is in place, the trapped miners can be rescued along the lì.

The second method is because it is excavated from the bottom of the mountain, so the working face can be expanded, the rescue workers can be greatly increased, and there can be construction machinery to help, and the speed is obviously much faster than the first method. However, the disadvantages are also obvious, because the altitude of the foot of the mountain is low, the groundwater level may exceed the construction site, once the amount of groundwater is large, even if the mine road is dug, it may not be possible to safely rescue the trapped miners, and even the rescuers may be washed away by the groundwater that emerges.

As long as the groundwater can be opened up before the groundwater spreads, both methods will work, but the time requirements for the second method are more urgent, and the life-saving tunnel must be dug before the groundwater rises to the bottom of the mountain.

The first option calls for digging before the groundwater rises to the highest point of vein 15.

Everyone argued, one person said that we were sure enough to dig through when the water level rose to the bottom of the mountain, and another person said that you are purely gambling, what if the water level rises faster than Luo Dihui said by an inch in a minute?

The man said it was impossible, because in his view, groundwater is also water, and the faster it rises, the slower it gets: as the water level rises, the pressure on the place where the groundwater is spewed will be, and the pressure difference between the water pressure in the mine and the underground river will gradually decrease or even reach equilibrium. Anyone who knows a little bit of physics knows that as long as the pressure of the two places is balanced, the flow of water will slow down until it stops.

Those who argue later argue that as the groundwater level rises, the volume of tunnels in the mountain will become smaller and smaller, and the same amount of groundwater gushing out will increase the rate of water level much faster. Because no one can determine how strong the pressure of the underground river is, let alone the position of the water level in the mine to balance the water pressure.

The people who can participate in the discussion are either technical experts or leaders, and what they say makes sense, but it is the leaders who are in a dilemma: what to do in the face of these different opinions?

……

Jiang Xinwei not only did not know about the quarrel of these mine leaders, but he could not even go to the rescue site at the mine crossing, because the rescue site had been put under martial law by the new soldiers, and no one except medical personnel and the wounded were allowed to enter or leave.

Jiang Xinwei, who was forced to return, returned to the mine building.

At the door of the computer room, he heard a maintenance worker saying loudly and admiringly: "He really has the ability! Just dismantling a radio, using a few stored spare parts, to make such a good functional board, I Wang Jianxiong really admire him!"

Zhu Jianhua smiled and said, "Hehe, Wang Gong, there are more powerful ones you don't know." At that time, he installed a light-emitting diode on a circuit board, and he could tell whether the telephone line was open or short-circuited by looking at whether the LED was lit or not. Do you believe it or not?"

He spoke so triumphantly, as if he had done it.

Wang Jianxiong, a maintenance worker, asked Zhu Jianhua a few words, thought about it after understanding the situation, and said: "This is not difficult, there is not too much technology and skills, and the principle is very simple." …… What I admire most is that he designed such an ingenious circuit. ”

Obviously, Wang Jianxiong's technical level is much higher than Zhu Jianhua's. In Zhu Jianhua's view, the method of testing the state of the line with light-emitting diodes is very mysterious, and the technology must be very superb, but in Wang Jianxiong's view, it is very common.

Seeing Zhu Jianhua's unconvinced look, Wang Jianxiong explained simply: "What he uses is just the voltage difference caused by the different resistance of the line. In fact, there is a premise for this method he adopted, and it is necessary to know in advance that these lines are good before the accident, and there is no artificial connection of other electrical appliances or conductors at the far end, only in this way can the state of the line be judged with the help of the luminous brightness of the diode. ”

Zhu Jianhua couldn't understand Wang Jianxiong's explanation, but he was very dissatisfied with the other party's "belittling" of Jiang Xinwei, and couldn't help but say angrily: "Of course you don't think it's difficult for me to say it, but if I don't say it, will you think of it? Just use a light-emitting diode to judge whether the circuit is short-circuited or broken! No matter how much you brag about it, you don't have the same high ability as him!"

Wang Jianxiong was not angry, and admitted very frankly: "You are right, his skills are better than mine." Technology is often just a layer of paper, and if you pierce it, you feel that it is easy, but if you don't pierce it, we can't think of it. It is truly remarkable that he was able to come up with such a simple and ingenious solution in such a short period of time. …… By the way, he is so powerful, how can he work in your mine, even if he goes to work in the operation and maintenance department of our Municipal Telecommunications Bureau?"

"Hehe, awesome?...... , he's not from our mine, he's my friend, the postman of the Shiqiao Town Post Office......" Zhu Jianhua said proudly, and when he saw Jiang Xinwei coming, he couldn't help but blush, and stopped his mouth in embarrassment.

Guo Qian was sweeping the floor at the door, and saw Jiang Xinwei listening with a smile, and there was a hint of blush on her white face.

Two maintenance workers scanned back and forth across the faces of the three of them, and one of them asked, "Is that him?"

Jiang Xinwei smiled at Guo Qian and said, "Xiao Guo, I can't help here now, and I have to go back to deliver the newspaper, I'm leaving, goodbye!"

Guo Qian was very reluctant to go, and said, "You haven't eaten lunch yet......"

Jiang Xinwei shook his head and said, "No need, everyone is busy now, I'll be hungry for a while." With that, he turned around and pushed the bicycle outside.

Guo Qian was anxious, and shouted as she ran inside: "Master Jiang, wait a minute, I have cookies in my drawer." ”

The two maintenance personnel walked a few steps quickly to chase them out, watched Jiang Xinwei ride a bicycle with two mail bags hanging on it, and muttered: "He...... It's really a giveaway...... Newspaper delivery ...... How could it be ......?"

When Guo Qian took out a pack of biscuits in her collection and chased them out, Jiang Xinwei was gone.

……

After some painful and intense thinking, Mr. Guo made a decision: implement the first method!

Because in his opinion, if the groundwater rises faster and faster, then the second method will definitely not work, and the water level in the mine is likely to exceed the altitude at the bottom of the mountain before it is dug through. If groundwater rises more and more slowly because of pressure, then the first option is more favorable, because the slower and slower water level provides more time for this option.

As the dust settled on the rescue excavation method, all the rescuers quickly left the current rescue site and rushed to a new location in the distance to start digging.

……

Jiang Xinxu left very smoothly, because there were only soldiers on duty at the gate and there were few spectators watching the excitement.

As he was going out, a pickup truck with "Yiyang City Telecommunications Bureau" printed on the door drove in.

Soon after he left the Hongxing Coal Mine and rode on the cement road leading to the county seat, he saw a motorcade roaring towards him. In front of the convoy was a white police car, blaring its sirens to disperse pedestrians on the road, including not only government officials and jeeps, but also hospital ambulances, small trucks with the words "engineering rescue vehicle" sprayed, and a fire truck.

He had to pull to the side of the road and wait for the long convoy to pass, for the dust they had rolled up to clear.

Watching these vehicles whizzing past him, Jiang Xinwei guessed: "Now the county magistrate's car is just a jeep, and the two Santana cars in the middle should be sitting on the city officials, right?"

He looked at it and saw it, and without thinking much about it, he waited for the dust to almost disperse, and then he stepped on his bicycle and pedaled quickly, trying to recover the time lost in the coal mine, and sent the telegrams, remittance slips, and other time-critical things in the mail bag to the recipient.

Little did he know that he would soon cross paths with the officials he had just passed.

(New week for tickets and collections)

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