There are two murals on the ground in Cave 0 that need to be protected and removed. One requires the paint layer and the ground layer to be removed. The other part requires only the paint layer to be removed due to insufficient adhesion between the ground layer and the paint layer.

After removing it, adjust the ground layer and disperse the weight.

After everyone’s repeated trials, Cave No. 0 has entered the official stage of excavation and protection.

When removing a mural, whether it is removing the paint layer or removing it together with the ground, the preliminary cleaning work of the mural must be done. Sheng Tang and Xiao have also taken photos, videos and copies of the mural to be removed.

Work.

Prepare polyvinyl butyral solution and polyvinyl alcohol solution in proportion, and then remove the soil layer that may collapse.

The part of the murals that was peeled off the pigment layer and the ground layer was led by Qi Yu, while the part of the murals that was peeled off by a separate pigment layer was led by Jiang Zhi, because compared with the two methods of peeling off, the peeling off of the pigment layer is more difficult to operate.

It is relatively complicated and may cause malfunctions if not operated properly.

For example, improper use of repair materials or the amount of glue will affect the paint layer. Generally speaking, it is very troublesome to remove the paint layer for restoration. However, because of Jiang Zhi's rich experience and proficient skills, he can overcome the difficulties and

Damage is minimized.

When marking lines and making frames, the temperature inside the cave must be kept dry. At the same time, the removed ground layer also needs to be replenished.

The project is progressing slowly and cannot be done quickly, so stability must be sought.

Qi Yu was pasting hemp cloth and fixing it on the gable wall. Luo Zhan had already prepared a wooden board of the same area as a support after removing the mural, and also laid out felt and the like as a buffer for the mural.

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When it was time to cut, Shen Yao and Xiao also assisted, and Jiang Zhi temporarily put down his work and stepped forward to monitor. Sheng Tang recorded the entire process, which was extremely valuable on-site teaching and experience accumulation for her.

Qi Yu holds a scalpel and cuts along the pre-drawn removal line. There are only a few people who can stand on the scaffolding, so Qi Yu and Xiao are also on top as the main force, and Luo Zhan is on the lower floor as a support board. Shen Yao is ready at any time.

It is necessary to pay attention to the condition of the floor and walls after they are peeled off.

After confirming that the ground rails were firm, Qi Yu began to use the leverage principle of a long shovel to peel off the floor rails and walls, starting from the bottom.

When Sheng Tang watched, his heart was in his throat for some reason.

But he quickly comforted himself, don't think too much, don't think too much. The work of uncovering the murals was already a difficult task for Qi Yu and others.

Let's not talk about what he was afraid of. In short, when Sheng Tang didn't even know what he was afraid of, the thing happened.

Hear Shen Yao exclaim, be careful!

Accompanied by the sound of gravel falling, the scaffolding swayed, and the entire mural fell down. Xiao Ye and Qi Yu subconsciously went to protect the mural, but because of the scaffolding, Qi Yusheng fell down from above.

This end can only be barely stable.

And because of the scaffolding, Luo Zhan didn't respond to the plank. He followed Jiang Zhi with quick eyes and quick hands, grabbed the plank and pushed it up. Xiao here also waited until Jiang Zhi responded before he dared to let go, and then he fell down.

Stand firm and slide down from the shelf.

All the weight was on Jiang Zhi. The surroundings were covered with dust and dust. Sheng Tang and Shen Yao immediately rushed to help hold up the wooden board, but did not dare to use too much force for fear of damaging the fragile mural.

After that, Xiao Ye and Luo Zhan also rushed over.

The wooden boards firmly support the mural.

Everything happened so fast that it was confusing.

"There's blood!" Qi Yu's ankle sprained, and his ankle hurt when he sat up for a long time. From his angle, he could just see the situation under the wooden board, which was stained with blood.

Sheng Tang looked sideways and saw a deep gash on Jiang Zhi's arm.

Shocked, "You're bleeding!"

Jiang Zhi didn't care, raised his head and shouted to Xiao Ye, "How about the painting?"

Xiao was also in the upper position, so he could see the mural clearly, so he replied, "It's okay, handle it with care!"

Everyone breathed a sigh of relief.

After placing the wooden boards and making sure that the mural was intact, several people sat on the ground, and their hearts finally dropped.

Only then did they pay attention to each other's situation.

Qi Yu's ankle bone was a bit swollen, but he could move slowly without much problem, and the bones were not broken. Xiao was okay, but his elbow was bruised, and Luo Zhan was fine. He just stretched his waist when he rushed forward.

Therefore, Jiang Zhi was the one who suffered the most serious injuries. When Sheng Tang cleaned his wounds, he realized that the scratches were indeed quite deep, because the entire weight was on him, and the skin on his shoulder blades was also scratched and bruised.

After learning about this incident, Hu Xiangsheng rushed over in a hurry. He first checked whether the mural was damaged, and then forced Qi Yu and Jiang Zhi to go to the hospital.

But in the eyes of the two of them, these injuries were not serious.

Qi Yu's sprain is recovering, but he still insists on working. His reasons are also sufficient: I am a repairman, and I sit there for most of the day without moving. It is almost a still picture. Why are I afraid of hurting my feet?

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As for Jiang Zhi, his arm received four stitches.

The doctor who stitched him was a female doctor. She looked at his handsome face from time to time. After finishing the stitches, she explained some precautions, and then said earnestly, "Fortunately, it's an arm. It would be a pity to have a cut on his face. In the future,

Stop fighting with others and just be a vase quietly."

Jiang Zhi:......

Jiang Zhi was not idle either. After treating the wounds on his front legs, he went into the cave to work on his back legs. For the same reason as Qi Yu, saying that the injury was an arm and not a hand, it did not affect his work. Sheng Tang also knew his stubborn temper and let him go.

After he went there, I usually told him to pay more attention to his wounds.

After once again confirming that there was no problem in removing the mural, Jiang Zhi began to work on the part he was responsible for. Removing the paint layer required a lot of patience, and each procedure required extreme care, and some steps took a lot of time.

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When he was uncovering it, he also became the on-site teaching for everyone. Professor Hu gave many instructions to Xiao Ye to record it so that it could be used as a technical reference and teaching in the future.

Still the same, he did the cleaning work first. When applying glue, Jiang Zhi controlled its concentration very well. According to the condition and properties of the paint layer and ground layer, he abandoned polyvinyl alcohol and used glue from the mountains.

Peach gum acts as a binding agent.

The patch is made of yarn, which is the most suitable cotton yarn that Jiang Zhi personally selected.

The process of waiting for the first layer of glue to dry requires patience until the first layer of gauze is sure to be bonded to the mural, and then the second layer of glue and the second layer of patching. However, Jiang Zhi used pure cotton for the second layer of patching.

cloth, which is stronger than the first layer of gauze.

The conditions in Cave No. 0 are not suitable for artificial heating and drying, so it takes a long time to wait for the glue to dry.

Jiang's hand was very steady when he unveiled the painting, and when the paint layer was pulled out from the ground layer, it was perfect. Even Xiao, who has always been proud of it, was amazed.

When he held the surgical scalpel to remove the fragments of the ground war, Sheng Tang finally understood the reason why Xiao Ye called him Dr. Jiang. His technique was very calm and decisive, and there was obviously no thrilling rhythm, but every step of the operation was called "Dr. Jiang".
Chapter completed!