After seeing off Mr. Zhu, Yue Weihan took the opportunity to check on the progress of the Niangziguan Fortress project.
The construction volume of Niangziguan Fortress is slightly smaller than that of Tumen Fortress, and there are only seven bunker groups. However, after completion, its defense strength will not be much inferior to that of Tumen Fortress.
Then, Yue Weihan inspected the Cangyan Mountain "Industrial Zone" non-stop.
Cangyanshan Industrial Zone is the core and essence of the entire Taihang base area!
The planned Cangyanshan Industrial Zone will build four "large" factories, a 3,000-kilowatt thermal power plant, a steel plant with an annual output of 10,000 tons, an arsenal and a gunpowder factory.
The equipment is all ready-made, and the thermal power plants and steel plants were "given" by the Communists.
The arsenal and gunpowder factory were completely relocated to Yan Xishan's Taiyuan arsenal.
The factory site has also been selected. The arsenal and the gunpowder factory are relatively easy to hide, so they are built in the dense forests of the valley. The thermal power plant and the steel plant have tall chimneys, which are more difficult to hide, so they are built at the bottom of a cliff. According to the plan, this
The two factory buildings had to be carved out from the bottom of the cliff.
Those responsible for the construction of Cangyanshan Industrial Zone were five thousand Japanese prisoners of war.
After two months of hard work by five thousand Japanese troops, the buildings of the arsenal and gunpowder factory have been basically set up, and most of the equipment has been installed and debugged. As long as the workers and raw materials are in place, production can start immediately. In addition, the sand beach is more than ten meters wide.
A stone highway has also been built outside the mountain, leading directly to Jingxing County.
However, the construction of thermal power plants and steel plants was not smooth.
The reason is very simple. The amount of work required to carve out the factory building from the cliff is too great!
Pi Xiaocheng, who accompanied Yue Weihan on his inspection, suggested: "Commander-in-Chief Yue, the amount of work required to dig out two factory buildings under the cliff is too great. At this rate, it may not be completed even if it takes a year. I do have some work here."
A compromise suggestion.”
"Oh?" Yue Weihan said hurriedly, "Speak quickly."
Pi Xiaocheng said: "It is better to find two mountains of earth, like Tumen Fortress and Niangziguan, and dig out the mountainside. The space is enough to build two factories, and the amount of work is much smaller than digging into the cliff. Then use steel bars, cement
And logs for reinforcement, even if the Japanese army knows where our power plants and steel plants are built, there will be nothing they can do."
After saying this, Pi Xiaocheng added: "Of course, for the sake of safety, it is best to curve the chimneys of power plants and steel plants and stagger the position of the smoke exhaust outlets from the factory buildings, so that Japanese bombers can find and bomb them.
Even if the chimney is destroyed, we can quickly repair it and the factory facilities will remain intact.”
"Okay!" Yue Weihan said happily, "Pi Xiaocheng, from now on, you will be the chief engineer of the four major factories. Your task at this stage is to supervise the construction of the four major factories. After the factories are completed, you will perform equipment maintenance and technical improvements.
, process improvement and all other technology-related issues will be left to you!"
Yue Weihan's appointment was not made casually by a hothead.
Although Pi Xiaocheng came from an enemy-occupied area and was born into a family of traitors, he was definitely a patriotic young man and his love for the motherland definitely came from the heart. Yue Weihan still had this kind of discernment.
The most important thing is that Pi Xiaocheng also has a doctorate in both electromechanical and chemical engineering!
Some of the experts sent by the National Government studied mechanical and electrical engineering, but their level was much lower than that of Pi Xiaocheng. Therefore, the chief engineer of the four major factories could only be Pi Xiaocheng.
"This..." Pi Xiaocheng said hurriedly, "Commander Yue, I'm afraid I won't be qualified for the job."
"I believe in you." Yue Weihan patted Pi Xiaocheng on the shoulder and said, "You can definitely do it!"
Pi Xiaocheng was silent, but he was deeply moved. He thought that Yue Weihan, a "Japanese Japs" from the enemy-occupied areas, dared to entrust him with the important task of the logistics manager of the group army. Most people would never have such courage. This is probably a legend.
Isn't it the highest state of employment to employ people without doubting them?
Before leaving the Cangyan Mountain Industrial Zone, Yue Weihan made a special trip to the prisoner of war concentration camp.
The Cangyan Mountain Prisoner of War Concentration Camp is divided into five major camps. Each camp holds a thousand Japanese prisoners of war. In order to ensure that there will be no accidents such as escape of prisoners of war, a full regiment of guards is stationed in the Cangyan Mountain Prisoner of War Concentration Camp. The entire industrial zone is also surrounded by dugouts.
There are three trenches, a sentry every 100 meters, and a patrol team every half hour.
However, Yue Weihan was still worried and called the leader of the Cangyan Mountain Security Regiment in front of him.
The leader of the Cangyan Mountain Security Regiment is Mr. Zhao. Before he surrendered to the Communist Party, this guy was the head of the Lunan Police Sect.
"Chief!" Zhao *** ran to Yue Weihan, gave a military salute in a decent manner, and said loudly, "Zhao ***, the leader of the Cangyan Mountain Guard Regiment, reports to you and asks for instructions!"
Yue Weihan returned the gift and said solemnly: "Captain Zhao, how many prisoners of war have escaped this month?"
"Escape?" Zhao *** said with confusion, "Since the establishment of the Cangyan Mountain Prisoner of War Concentration Camp, a total of more than 5,000 Japanese prisoners of war have been detained. After more than two months of intense labor, about 900 prisoners of war have been detained.
Many Japanese prisoners of war died of exhaustion, and more than a hundred Japanese prisoners of war starved to death, but not one of them escaped?"
"It's fine if you don't have it." Yue Weihan snorted. He was originally trying to deceive Mr. Zhao by saying this.
After saying this, Yue Weihan said again: "*** Zhao, Cangyan Mountain Industry has concentrated the four most important factories: thermal power plant, steel plant, arsenal and gunpowder factory. For the Thirty-ninth Group Army, her importance is
I believe I don’t need to say more, so your security team must do its best in security work and ensure that there are no mistakes!"
Yue Weihan did not say this casually. The confidentiality of Cangyan Mountain Industrial Zone is indeed very important.
Imagine that as long as one or two Japanese prisoners of war detained here escape, they can report the detailed situation here to the Japanese Central China Front Army Headquarters based on their memories, and the Japanese army can quickly dispatch a bomber group to bomb. At that time, Cang
The Yanshan Industrial Zone is likely to be severely damaged before it is even completed.
This is the only equipment Yue Weihan has in hand. If it is bombed, he will not be able to find anywhere to buy it!
As long as there is a flaw in the four factories of thermal power plant, steel plant, arsenal and gunpowder factory, Yue Weihan's plan will be completely in vain. By then, even if the entire Jingxing Grand Canyon is built into the Maginot Line, it will
It still can't stop the Japanese army from advancing. You have to have ammunition to defend the fortress, right?
"Don't worry, Chief!" *** Zhao said confidently, "The entire Cangyan Mountain Industrial Zone is like a big iron barrel. Not even a mouse can escape. If the Japanese prisoners of war want to get out from here, there is only one way.
When they die of exhaustion or starvation, they can float back to Dongyang Island in their soul form, haha!"
Yue Weihan said: "Okay, just have confidence, but don't be careless."
"Yes!" Mr. Zhao stood at attention and said loudly, "You must be very energetic for your humble position!"
At that moment, Yue Weihan left the Cangyan Mountain Industrial Zone, and then drove non-stop to Tumen Fortress.
In the morning, Liu Yi called and said that the first phase of the Tumen Fortress project had been basically completed. When Yue Weihan was about to take a bus to inspect, he was greeted by Mr. Zhu. After greeting him and seeing him off, he stopped by.
Encircling Cangyan Mountain, by the time Yue Weihan arrived at Tumen Fortress, it was already past four in the afternoon.
Without any time to rest, Yue Weihan climbed up Conch Mountain accompanied by Liu Yi, Mao Yisheng and other experts.
Still dozens of meters away, Yue Weihan discovered that the original top of Conch Mountain had been flattened and replaced by a large bunker with a diameter of fifty meters!
From the outside, this bunker looks more than six meters high, but when you look inside, it's only two meters high at most.
Mao Yisheng introduced as he walked: "Commander-in-Chief Yue, the main bunker on Conch Mountain is designed to be fifty meters in diameter and five meters thick. From the outside to the inside, there is a one-meter-thick reinforced concrete exterior wall, and three layers of 3mm thick steel plates are implanted in the middle.
, then there is a three-meter-thick cavity with built-in sandbags filled with yellow sand, and then there is a one-meter-thick reinforced concrete inner wall."
"Why is it designed like this?" Yue Weihan looked at it and saw that the wall was so thick that the shooting holes looked like tunnels.
"This design is mainly for earthquake protection!" Mao Yisheng said, "Explosions experts have told me before that heavy aerial bombs or large-caliber grenades will produce huge shock waves when they explode. If the shock wave cannot be effectively weakened, hide in the bunker.
People inside may be injured or killed."
"What about the top floor?" Yue Weihan asked, "It looks very tall from the outside, but it's very short inside."
Mao Yisheng nodded and said: "The top-level design is like this. First there is a one-meter-thick reinforced concrete dome, covered with logs about 50 centimeters in diameter. The first layer is arranged horizontally, the second layer is arranged vertically, and the third layer is again
Arrange them horizontally, and then arrange them vertically on the fourth floor. After four layers of logs are criss-crossed, they are then covered with one meter thick sandbags!"
As soon as they finished speaking, Yue Weihan and the others had already reached the entrance of the bunker leading to the second underground floor.
Mao Yisheng added: "The bunker has a total of four layers of structure. The surface layer is the shooting position, the second underground layer is the arsenal, the third underground layer is the living room for officers and soldiers, and the fourth underground layer is the field hospital. The structure between each layer and the bunker
The top layer has the same structure, and the passage can be effectively blocked. Even if the surface layer is blown up, the lower layers can still operate to a limited extent."
"Okay, very good." Yue Weihan nodded happily, then bent down and got into the passage leading to the second underground floor.
After passing a slanted staircase about ten meters long, Yue Weihan and his party descended to the second underground floor.
The ventilation on the second underground floor is good, and people will not feel stuffy at all when entering. The power supply system has been connected, and the bright searchlights illuminate the entire space as bright as day. Since the bunker has just been built, weapons and ammunition have not yet had time to enter, so
The entire space seems empty, but soon it will be filled with a large number of weapons and ammunition!
Seeing this, Yue Weihan was relieved and didn't even need to look at the third and fourth underground floors.
Such a fortress can definitely be described as impregnable. As long as sufficient supplies of ammunition and daily necessities are ensured, a regiment of troops can last for a year. If the Japanese army wants to break through such a fortress, it will not have to pay more than ten times the casualty price.