After eating, Shucheng finished the checkout, Director Zhao was already a little drunk, but fortunately he knew where he lived, Shucheng drove Director Zhao to the door of his house first, and then drove back to the project department.

Obviously, tonight's dinner did not achieve the expected effect, Director Zhao ate and drank for nothing, and sent him home, and finally gave forty-five tons of steel bars for nothing, which is equivalent to more than 100,000 yuan, and Ren Changhong and others had no way to take him.

It's really a person under the eaves, who can not bow his head!

The next morning, Li Yifeng did not attend, presided over by Ren Changhong, specifically talked about the theft of steel bars, and reminded all employees to do a good job of anti-theft.

After the morning meeting, everyone began to go back to their own offices, and the technical department and on-site operators began to go to the site.

Before half past eight, Hao Hongwei called Shucheng.

"Brother Shu, there is an accident at the construction site again." Hao Hongwei was also direct, called Shucheng, and was straightforward without turning.

"What's going on?" Shu Cheng asked very calmly, mainly because as soon as he came back, there were so many things, and Shu Cheng began to develop immunity.

"There are two piers on the site with percussion drill construction pile foundation, last night construction, the construction team did not know how to do it, the drill bit of the percussion drill fell into the pile foundation hole, did not pull up." Hao Hongwei explained.

The pile foundation construction project department generally uses rotary drilling drills to construct pile foundations by rotary digging, but when encountering high geological strength, rotary drilling drills cannot be used, so percussion drills must be used.

The so-called impact drill, to put it bluntly, is to use a large iron, once and again to smash down, even if the stone is hard, it will be smashed when it encounters the impact drill, it is only a matter of time.

A percussion drill bit weighs six tons, and under the constant impact of six tons of iron, even the hardest stone will be smashed into powder.

"Lost the drill?" Hearing Hao Hongwei's words, Shu Cheng was a little dumbfounded, he was really afraid of something. Then something happened.

It stands to reason that the geology here is not complicated, and no matter how much the percussion drill bit is raised, it will not be able to lift it.

"That's right, the wire ropes are broken. The drill bit is still inside the pile foundation. Hao Hongwei said.

"Have you tried it with magnets and hooks?" Shu Cheng asked.

The most common way for the drill bit to fall into the pile foundation is to hang it with a hook and pull it up, or use a magnet to suck the drill bit up.

However, this method is generally used for rotary drilling. This method is still relatively rare for percussion drilling. First, because the hole that the percussion drill can hang is not large, the hook is difficult to hook, and the magnet is also difficult to lift the drill bit weighing six tons, so the percussion drill bit falls into the pile foundation, and it is usually difficult to get it out.

"I tried both methods, but it didn't work, the magnet sucked the drill bit, but it couldn't pull it up. The hook simply doesn't hang on the head of the drill bit. Hao Hongwei said.

Shu Cheng was silent for a moment, and asked Hao Hongwei, "Have you sued the manager for them?" ”

"Manager Weng has already called Manager Ren, and Manager Ren said to come over later." Hao Hongwei replied.

"Okay, I'll come over later." Shucheng Road.

Shu Cheng has also done a lot of pile foundation in his previous life, and the impact drill has also been used a lot, and the rotary drilling drill bit fell into the pile foundation, and Shu Cheng has encountered a lot, but the drill bit of the rotary drilling drill is easier to deal with. It is the first time that the percussion drill bit falls into the pile foundation.

Stuck drills are often encountered, but after constant lifting. Eventually, the drill bit can also be lifted.

But the problem now is that the drill bit is alone in the pile foundation, and the wire rope that pulls the drill bit is broken, how can this be good.

Originally, Shucheng went to the General Department to ask for a car. happened to meet Ren Changhong walking out, so he said, "Manager Ren, are you going to the scene?" ”

"Well, the on-site percussion drill bit fell into the pile foundation, I'll go see what the situation is." Ren Changhong said.

These days, the project department is really restless. One thing after another happened, Ren Changhong also had a headache, but there was no way, after all, Ren Changhong was the executive deputy manager, and he had to do so much work after taking this salary.

"I'll go with you, I just want to go to the scene too." Shucheng Road.

Since he didn't see the specific situation at the scene, Shu Cheng couldn't figure out what was going on.

This time, it was still Shu Cheng who acted as the driver and helped Ren Changhong drive, and about half an hour later, the off-road vehicle came to the construction site.

At this time, Weng Yunxing, the deputy manager of the site, Hao Hongwei, the technical director of the site, Jin Fu, the team leader, and Wang Guangjian, the technician, were all on the scene. At the same time, there is also Lao Huang, the boss of the construction team, and the relevant operators of the drilling rig.

At this time, everyone gathered around and discussed how to solve the problem.

Shu Cheng parked the car next to him, and Ren Changhong got out of the car directly and went over to inquire about the specific situation.

After Shucheng stopped, he first came to the percussion drill and found that next to the percussion drill, there was a thick and broken steel wire rope.

On one side of the wire rope, there is also a triangular hook made of steel welded steel, which is covered with dry mud.

As for the magnet, Shu Cheng didn't see it at the scene, and I don't know if the construction team has used it.

From the broken wire rope, Shucheng found that this wire rope was partially broken when drilling, and the operator did not replace it according to the regulations.

Looking at the pile foundation again, Shu Cheng found that there was a lot less mud in the casing, revealing about a meter of the casing.

This casing is a prototype casing made of iron sheet, with a diameter of about 1.4 meters and a height of 1.5 meters. It has a lot of functions, such as pile foundation using it to position; Protect the orifice from falling into the hole with stones on the ground; Maintain the mud water level to prevent hole collapse; Prevent mud backflow during drilling and control the elevation of the pile foundation with a casing.

Under normal circumstances, the casing is buried 30 centimeters above the ground to prevent other stones and other objects from falling into the hole.

The height of the mud in the hole is generally equal to the original ground, but the mud in this pile foundation is nearly one meter shorter than the original ground.

Obviously, during the drilling process of this pile foundation, there is a leakage phenomenon, that is to say, there are zài holes under this pile foundation, and the mud will flow away from those holes, so the mud in the casing is not satisfied.

"What is the geological situation below, why is there still leakage, and how deep is it to drill to the design elevation." Ren Changhong glanced at it and asked.

Ren Changhong was also born in technology, and he still understands some of these simple questions. Just now, Ren Changhong has asked the construction team about the treatment method, and the hook and magnet have been used, but the effect is not good.

"Manager Ren, this pile foundation is 36 meters deep, and it has been drilled more than 33 meters, and there are about three meters to the elevation. Moreover, several pile foundations after this pier was poured were leaking, as if there were cavities underneath. Hao Hongwei stood up and replied.

After all, he is in charge of the technology of this construction site, and he has to explain many things.

"Why don't you bring it up if there's a hole, and don't say it until now?" Ren Changhong frowned, a little dissatisfied.

"Lao Huang, didn't you find that the wire rope was about to break during the drilling process?" Ren Changhong saw that Hao Hongwei didn't speak, and then turned to Lao Huang, the boss of the construction team, and said: "I know that there is a hole underneath, and if you can't get it stuck, you still use a broken wire rope, you are really talented!" ”

"Manager Ren, it's not like I didn't pay attention." Faced with Ren Changhong's blame, Lao Huang said perfunctorily.

"I didn't pay attention, you think the wire rope is a packaging belt, it will break when it is grinded, this wire rope has been used for at least half a year, and you actually said that you didn't find it in this process?" Ren Changhong was also very dissatisfied with Lao Huang's words.

Seeing that Ren Changhong had a tendency to get angry, Shu Cheng hurriedly said: "Boss Huang, what should I do now, the drill bit hasn't come out." ”

In fact, Weng Yunxing and others were also discussing this matter just now, and now the main task is how to get the drill bit out, and if the drill bit can't be made in a day, this pile foundation will not be able to continue drilling.

"Why don't you drain the mud in the pile foundation and let people go down and tie the rope." Lao Huang paused and said what he thought.

Lao Huang opened his mouth, Shu Cheng knew that the other party was a layman, this foundation is now full of mud, if it is drained, this hole will definitely collapse, there is no mud to protect the wall, who just went down to tie the wire rope? This is completely looking for death, and only Lao Huang can come up with this method.

However, if the mud is not drained, it is difficult for people to tie the wire rope when they go down, after all, nothing can be seen in the mud, it is completely by touching, how can it be so simple, ordinary people may not be able to go up.

Regarding Lao Huang's words, Ren Changhong directly rolled his eyes and said, "You drain the mud, you are going to bury the drill bit underground." ”

"Why, of course I want to get the drill out." Lao Huang hurriedly explained.

"It's a shame that you think of this way, after draining, I don't think anyone dares to go down, whether you can go down or not, it's still the same thing." Ren Changhong said.

"So what to do?" Although Lao Huang didn't know why he couldn't drain the mud, he still believed Ren Changhong's words.

In fact, the reason is very simple, the mud is in the hole, it is used as a kind of wall protection to prevent the collapse of the hole, once the mud is drained, the empty will definitely collapse, not to mention that people go down, and they are buried alive directly in it.

"Manager Ren, did you encounter this situation during the construction process before?" Shu Cheng asked.

"How can this be the case, only our big boss Huang can do such a superb job, drill a pile foundation and drop the drill bit into the hole." Ren Changhong said sarcastically.

"Manager Ren, it will definitely not work to drain, it is better to find someone to go down and explore to see if you can tie the wire rope." At this time, Weng Yunxing, who was standing aside, spoke.

"If anyone dares to go down, you can dilute the mud, so that the resistance is a little less, but it can't be too thin, for fear of collapsing holes." Shu Cheng added.

After all, it is thirty-three meters deep, this is not a joke, if the mud is too thick, it is difficult for people to go to the bottom of the hole.

"Well, the question now is to see if there are any professionals in this area, and ordinary people will definitely go down in vain." Ren Changhong nodded.

However, how can this kind of talent be so easy to find, and even if it is found, the price cannot be too low, after all, this is risking his life to work, and he is completely playing with his life.

If you don't pay attention, you may not be able to get up.

"Lao Huang, you have such a wide relationship, you don't have talents in this area?" Ren Changhong asked.

"No, there are quite a few people who can swim." Old Zodiac.

What answered Lao Huang was Ren Changhong's white eyes. (To be continued.) )