Li Bao ordered the Jin soldiers to push the city-climbing cart back to the Jinying side of the moat, and asked him to bring Song soldiers to raise the city-climbing cart by four feet. In this way, the city-climbing cart was already three feet higher than the city head. The Liao soldiers wanted to It would be impossible to throw a log weighing hundreds of kilograms up and roll it down the steps.
Jie Wanli stood at the top of the city and watched the Song soldiers in the distance heighten the city car. He smiled contemptuously. He ordered the Liao soldiers to move dozens of earthen jars from the corner of the city to the city head. After the city car was raised, Slowly approaching, Jie Wanli gave an order, and the Liao soldiers at the head of the city picked up these earthen jars and threw them at the city climbing vehicle. The jars were broken, and the lamp oil contained in them flowed down the city climbing vehicle. Li Bao was shocked and quickly sent an order to board the city. The cart was pushed back. The cart moved very slowly. Jie Wanli commanded the Liao soldiers to shoot rockets at the cart. The cart was made of wood and burned easily after being poured with oil. In a short time, the cart became a A fire rack, even if you want to put it out, you can't put it out.
Wan Yanliang lamented that it was a pity. If he had taken some fire prevention measures earlier, such as watering the city climbing car, he might have used it to climb to the top of the city. The manufacturing of this city climbing car was time-consuming and labor-intensive, and it was impossible to build another one in a short time. Fought.
Wan Yanliang asked Li Baodao: "Where is the ten thousand catty hammer that General Li mentioned?" Li Baodao said: "The ten thousand catty hammer is still thirty miles away. If we want to break the city, it seems not easy to climb to the top of the city. Why not try digging a tunnel? .”
Wan Yanliang shook his head and said: "It takes a long time to dig a tunnel. Moreover, there is a watchtower at the top of the city, and there must be a listening room in the city. I'm afraid it will be useless." Li Bao said: "We have city digging trucks in our army. , dig a tunnel into the city, and it can be dug out at dawn."
Wan Yanliang had never heard of the name of the city digging truck he was talking about, and he didn't know what it was. Li Bao personally sent several strong men holding shields to check under the city wall. He frowned and chose a place under the city wall for a long time before choosing a place under the city wall and said: " Start digging right here.”
The capital city of Yunnei Prefecture is located in a shallow hilly area. Not only are the foundations of the city wall built with huge stones brought from far away from Xixia, but there are also many stones on the ground under the city. Excavation is very laborious. No wonder Li Bao is frowning. Yunnei Prefecture talks about land and water conservancy. It is not as good as Ningren, and the transportation convenience is not as good as Roufu, but the Liao Kingdom chose this place as its capital. The important reason is that it is easy to defend and difficult to attack when building a city.
Digging a tunnel under the city wall, as long as it is big and wide enough, is equivalent to opening another city gate.
Wan Yanliang was greatly surprised when he heard that Li Bao was going to dig a city at the foot of the city wall. It should be noted that digging a tunnel into the city meant a surprise attack. Naturally, the more concealed the better, the excavation site was far away from the city and some disguise was required. The tunnel passes through the bottom of the moat. If it is dug through accidentally, the river water will pour in. The consequences will be very serious, so the amount of work is very large.
The city defenders often set up listening rooms deep underground under the city walls, using large tanks to listen for the sounds of digging. The watchtower on the top of the city observed the enemy camp. If new layers of soil were turned up and the moat became muddy, they would know that the enemy was there. Tunnel dug.
If Li Bao wants to dig a tunnel at the foot of the city wall, it will naturally be much faster, but how can the Liao soldiers at the top of the city watch you dig indifferently? When the digging truck was pushed under the city wall, Fang Jinshi understood.
This excavating truck is like a large container in later generations. The walls and top are made of very thick hard pine boards, and there are some vertical timber supports inside. In order to prevent fire, the top is thickly paved with silt. This excavating truck is pushed to At the foot of the city wall, the Jin soldiers got into their carts and dug as hard as they could. No matter whether it was big rocks or wood, the Liao soldiers at the top of the city could not damage the digging carts. Even the Liao soldiers dropped the stone lions in front of the government office without smashing them. Damn this sturdy digging truck.
The Liao soldiers could not get out of the city, so they could only see that there was no other way. The digging truck extended straight to the moat, and a winch rope trolley was set up inside to dump the excavated soil and stones into the moat. Although the excavation was not interfered by the enemy troops at the head of the city, , but the foundation in Yunneizhou is too hard, there are many rocks, and the space inside the excavator is limited, so the excavation progress is not fast.
The Jin soldiers dug very deep before digging towards the city in order to bypass the foundation made of huge rocks in Yunneizhou. The next morning, the excavating Jin soldiers moved some stones away and unexpectedly found a entrance of the cave.
This hole was dug larger, and in front of it was the huge stone foundation of the city wall, with two lanes extending to both sides. It was so dark that I didn’t know where it led. Wan Yan was rewarded with a bright face, and she felt happy in her heart. This was obviously a tunnel dug under the city. A mysterious underground palace, or a secret tunnel dug through the Liao army.
Wan Yanliang ordered the excavators to withdraw. The siege soldiers entered the tunnel from the excavator and advanced to the secret passages on both sides. The tunnel was very narrow and could only allow one person to advance. After walking a short distance, they came to a large tunnel. in the hall.
The top of this hall is three feet high, and there are a lot of hay and cotton wool on the ground. It seems to be an underground warehouse where the Liao soldiers store these materials. Continue along the alleyway, and not far away there is another hall. The things inside are the same. After walking through four or five halls, a small stone door in front was closed.
The leaders of the Jin soldiers believed that if they opened the stone door, the city of Yunneizhou would be in front of them, so they ordered the Jin soldiers to go forward and pry open the stone door. Suddenly there was a noise above their heads, and a square hole appeared on the top of the hall, and a ray of sunlight shone through. Coming in, the golden soldiers looked up one after another.
There was a line of water pouring down from above at the entrance of the cave, and it drenched the golden soldiers on the ground. Then the people above laughed. It turned out that this person peed downwards, and then several people peed downwards. There was actually a cloud above them. Liao soldiers in Neizhou City.
After a few peeings, many torches and burning wood were thrown from the entrance of the cave. There were hay and cotton wool everywhere in the underground hall. The fire quickly burned. The golden soldiers ran out together, but the exit was narrow, and several of them escaped. They were huddled together, and the crowd behind them came up, and no one could get out. Several halls were on fire at the same time, and the thick smoke underground couldn't get out. The fire had not yet reached it, but it was overtaken by the thick smoke.
This tunnel hall has become a hell on earth. There are cries of ghosts and howls of wolves. There is no way to escape underground. Some golden soldiers want to go out and wantonly kill their companions who are blocking the road in front, but only a few people who came in behind can escape.
Wan Yanliang looked at the Jin soldiers escaping from the city digging truck. He couldn't figure out why there was a fire burning underground. What the Jin soldiers dug was not some secret passage in the underground palace, but the anti-dug ditch dug for the defense of Yunnei Prefecture. .
Wanyan Liang's face was livid. After waiting for a long time, he said to Tang Kuo: "Quickly order the passage to be cleared before sending people in." Li Bao said: "No, going in will also lead to death." Wanyan Liang said: "The combustibles have been If it is burned out, where will he come from?" Li Bao sighed and said: "The fire is gone, but there is still water. This anti-ditch trench must have access to the river. It will be useless no matter how many people go in, so give up this method."
Wan Yanliang said angrily: "It took more than a day to attack the city, and nearly ten thousand people were killed or injured. Is this Yunneizhou city really just a copper wall?" Li Baodao said: "For the current plan, the only way is to use a ten thousand catty hammer to smash into the city gate." Wan Yanliang said He said: "Then General Li hasn't ordered the 10,000-jin hammer to be brought up. When will we wait?"
