The wall trembled slightly, and Chen Hao immediately stood up straight, his hand still resting on the wall surface. He didn't move, but just stared at the yellow liquid in the grouting pipe as it slowly pushed forward.

"Pressure is stable," Nana's voice came from the side. "Current flow rate is 12 milliliters per second, and the filling progress is 19%."

"Not bad." Chen Hao looked down at the muddy footprints at his feet, then stepped on the crooked marker post to make it firm again. "Karl, slow down your gun over there, don't rush too fast."

Carl tightened his grip on the syringe, slowing his movements even further. The accident just now felt like a stone pressing on his chest, but he had no time to think about anything else; he could only stare at the wall in front of him and slowly inject the syringe, inch by inch.

Susan stood beside the recycling bin, her gloves covered in semi-solidified slurry. "The centrifuge is running, and the separated resin has reached a purity of 73%."

"Add stabilizer." Nana's screen flashed twice. "Maintain the temperature at forty-one degrees Celsius, and set the stirring speed to medium."

"Okay." Susan unscrewed the reagent bottle and poured in a small spoonful.

Chen Hao squatted down to inspect the pipe joints. The old sealing ring had been replaced; although it was a slightly different model, it wasn't too loose. He then tightened the fixing bolts one more turn.

“Last time you said this thing only had 30% of its lifespan left and should have been replaced long ago.” He looked up at Karl, “but you insisted it could last another two days.”

Carl remained silent, a layer of sweat forming on his forehead.

“I’m not blaming you.” Chen Hao patted his knee. “Everyone makes mistakes. The point is we have to turn them into lessons learned.”

“Hmm.” Karl nodded, his finger sliding lightly across the control button.

The first grouting is complete, and a green notification pops up on the screen: **Complete filling, no air bubbles remaining**.

"Done." Chen Hao stood up, shook his hand, and said, "Next, hurry up and finish the remaining two walls. We must finish before dark."

Susan's results are in. After remixing, the strength test showed that the recycled slurry reached 86% of the standard, just as Nana had predicted.

“It’s usable,” she said, “but I recommend using it primarily in non-load-bearing areas.”

“Then let’s repair the side of the living quarters in the east area first.” Chen Hao pointed to the area marked on the wall. “This section is not the main beam, so repairing it will prevent cracking.”

Nana updated the construction flowchart in real time, and the new grouting sequence was automatically generated. Her vents were slightly red, and the fan speed was increased by one level.

The second machine restarted, and the humming sound filled the open space once more. The workers changed shifts more quickly, and some had already begun moving the next set of molds.

Not long after, Nana suddenly spoke up: "The pressure curve on the left side is fluctuating. I suggest reducing the propulsion speed by 20 percent."

Karl immediately released his grip and took half a step back.

"What's wrong?" Chen Hao walked over.

"The slurry is more fluid than expected." Nana pointed to the data. "If we continue to inject at the original rate, it may cause local overflow."

"Then slow it down." Chen Hao turned to Susan and called out, "Keep a close eye on the ingredients, don't let the concentration change again!"

“It’s already being tested!” Susan held up the test strip in her hand. “This time, we’re taking samples every ten minutes.”

Chen Hao thought for a moment, then simply pulled over two assistants: "You two, don't wait for the machine to stop, go and mark out the next grouting section now. Once the lines are marked, we'll get right to it without stopping."

The two responded and walked towards the north wall with laser pointers.

The pace of the scene changed abruptly. While the first part was still in action, the second part was already preparing for the next. Toolboxes were moved to the wall in advance, molds were neatly stacked to the side, and even the waste bins were replaced with new ones.

"It's starting to look good." Chen Hao leaned against the newly reinforced wall and took a breath.

Nana suddenly spoke up: "Transportation time accounts for 38% of the total time, becoming the biggest bottleneck to efficiency at present."

"What do you mean?" Chen Hao turned his head.

“The time spent traveling to and from the ore vein is too long,” she said. “If we continue with the current model, the completion of the entire site is expected to be delayed by more than six hours.”

"Then we can't just run like this." Chen Hao scratched his head. "Is there a shorter route?"

Nana's screen flashed, displaying three routes. One of them, a path that passed through weathered rock layers, was marked in bright blue.

“This route can shorten the one-way distance by 27 percent,” she said. “The ground has enough weight to support the transport vehicles and avoids yesterday’s landslide area.”

"That's reliable!" Chen Hao's eyes lit up. "Why didn't you say so sooner?"

“Because you didn’t ask,” Nana said.

"..." Chen Hao choked for a moment, "You really are a robot."

“I’m just providing information,” she said. “The decision is yours.”

“Alright.” He waved his hand. “Karl, you take a group of people to clear the obstacles and pave the road first, and see if you can set up a temporary transit station. The materials can be transported there, so there’s no need to go back and forth.”

Carl nodded and turned to get his tools.

“I’ll go too.” Susan closed her notebook. “The powder over there needs pre-processing, and I can save time if I go with them.”

"Okay." Chen Hao waved his hand. "Be careful, don't rush."

The two left with their equipment, their figures quickly disappearing behind the scree slope.

The work at the base didn't stop. A third machine was connected to a new hose and began grouting the north wall. This time, everyone was watching the pressure gauge; no one dared to be careless.

"Filling progress 60%... 73%... 89%... Complete," Nana reported.

"Deformation monitoring?" Chen Hao asked.

“The vibration amplitude of the wall has decreased by 50 percent,” she said. “Structural stability has been significantly improved.”

"It's better than before." Chen Hao grinned. "Looks like changing the formula wasn't so bad after all."

"The premise is that the operation is carried out in accordance with regulations," Nana said.

"Hey, why do you always hit my sore spots?"

"I'm just stating the facts."

"I'm sick of hearing that," he rolled his eyes. "Could you use something different next time, like 'Well done'?"

"You did not shirk responsibility after the materials were damaged, and you took the initiative to organize repairs, which is a reasonable response."

"Wait a minute." Chen Hao raised his hand. "Are you praising me or writing a report?"

"Both can coexist."

Laughter came from afar. One of the workers couldn't help himself and almost dropped the syringe.

Chen Hao shook his head: "Forget it, I won't argue with you."

He walked to the corner of the east wing and squatted down to inspect the base of the newly paved transport road. The soil was compacted, and a few gravel pieces were placed underneath, making it seem relatively stable.

"As long as the car doesn't get stuck, it's fine," he said.

Nana stood in front of the monitoring station, continuously outputting data streams. Her machine was slightly warm, and the cooling fan never stopped. On the screen, the simulated path for the next stage of reinforcement was being generated, the color changing from red to green.

At the transfer station, Susan opened the packaging bags and packed the processed silicon powder into batches. Her hands moved swiftly, and her notebook turned to a brand new page.

Carl and his men had cleared the last obstacle and were heading back. They had laid a makeshift path using scrap metal sheets, and the wheels didn't slip on it.

"The road is open," he reported back. "The location of the transfer station has also been decided, at the bottom of the leeward slope."

"That's good." Chen Hao stood up. "From now on, the materials will be delivered there. The main force won't have to travel back and forth anymore."

"What about the lighting?" someone asked.

"We removed the tow truck headlights and installed them on the roof of the transfer station," Chen Hao said. "If that's not enough, we'll use flashlights tied to poles; that'll always provide some light."

“I can turn on the night assist mode,” Nana said, “to provide localized lighting support.”

"Then take it easy." Chen Hao glanced at her. "Last time the vents were smoking, I thought you were going to set yourself on fire."

“That’s normal heat emissions,” she said. “The system is operating at 76 percent load, which is below the warning level.”

"You're really tough."

"I'm just running stably."

“You two are at it again,” Susan interjected with a laugh.

“I didn’t make a sound,” Chen Hao raised his hand. “I was just afraid she would burn it.”

“My failure rate is less than three per thousand,” Nana said, “far lower than the probability of human error.”

"Hey!" Chen Hao glared. "Who just said I had leadership potential? How come they're suddenly calling me a source of failure?"

“I’m talking about your reaction after the accident,” she said. “Not your usual behavior.”

So, my strengths only exist after a crisis?

"Current data shows this to be the case."

The workers burst out laughing, and even Karl's lips twitched.

As night deepened, the base was brightly lit. Construction was underway on multiple walls simultaneously, the sounds of machinery, commands, and footsteps mingling together. The progress bar on Nana's screen kept jumping, and the green area was increasing.

"The remaining two walls in the east section have been grouted," Nana reported. "The structural inspection has passed."

"The West Zone is ready to start construction." Chen Hao clapped his hands. "The next group will be in place soon."

Susan returned from the temporary station carrying a new batch of material bags. She placed the bags in the designated spot and opened her notebook to write down the numbers.

After checking all the connectors and confirming that everything was in order, Carl gave a hand signal.

“Let’s begin,” Chen Hao said.

The injection gun was reconnected to the hose, and the slurry slowly flowed into the wall interlayer.

Nana's vents continued to glow red, and the data refresh rate accelerated. She was simulating the optimal execution sequence for the remaining hardening tasks across the entire base, and the paths on the screen were constantly being reorganized.

Chen Hao squatted down at the edge of the transport lane and pressed his hand against the ground.

The soil is very solid.