After the completion of the construction of the Luanjiang City slope project, the construction progress is very fast, Mr. Yang took Wu Cheng and Chen Qiang to participate in the first quality supervision work into the site soon after the meeting, Tang Chengbo notified the quality supervision station to enter the site for the first "groove inspection", which is to resist the acceptance of the foundation pit of the slide pile, which is the basis of slope treatment and housing construction, and Chen Qiang's first experience of going to work is still vivid!

The cost of the Luanjiang City slope project is more than 70 million, which is a relatively large project, but it is insignificant compared with the entire Luanjiang City project, and the cost of slope treatment is evenly spread to the low price of the floor is only a few dozen yuan.

The depth of the foundation pit on the slope of Luanjiang City exceeds that of any project that Chen Qiang has participated in, because the height of the slope itself is more than 20 meters, so the depth of the entire anti-slide pile is more than 35 meters, which is close to the height of a 12-story building! Even a young man like Chen Qiang is basically tired after climbing up and down in the morning, and the size of the anti-slide pile is generally smaller than the size of the digging pile in the housing construction project, so it is very difficult to check in the end!

But fortunately, one side of the slope itself is exposed, Mr. Yang can make a basic judgment from the geological conditions of the exposed ground combined with the geological survey report, Mr. Yang felt that Wu Cheng and Chen Qiang were too dangerous to go down to the bottom to check, so let Tang Chengbo take pictures of the rock at the bottom of the foundation pit and take out part of the rock, Mr. Yang checked the foundation pit of the sliding pile according to the photos and sampling, and at the same time let Deng Youwei also take a careful look at it, and after confirming that the design requirements were met, he agreed with Tang Chengbo to carry out the next step of construction!

About two months later, the anti-slide pile construction of the Luanjiang City slope project is basically over, and the next step will be to cut the slope down with a step of three meters according to the requirements of the reverse method!

The summer of Luancheng is high temperature and rainy, basically the sun is shining during the day, and it rains heavily at night.

Because the working surface of the reverse construction method is too small, if the slope is carried out in strict accordance with the three meters of a step, then the area that can be constructed by the excavator each time is very small, and the phenomenon of nesting often occurs, so that the construction cost of the whole project will rise a lot, and the construction period will also increase! Therefore, many construction units in the construction of the principle of digging to the end of the way to deal with, Luanjiang City slope project height of more than 20 meters, Tang Chengbo can not dig to the end at a time, but they still doubled the operation surface at a time, expanded three meters to six meters, so that he only needs three working faces to complete the construction, otherwise according to three meters of seven working faces!

There is a price to pay for not following the construction plan, especially for high-cut slope projects! After the first construction face of the Luanjiang City slope project was dug out, it encountered the baptism of heavy rain in the middle of the night, because the upper part of the slope accounted for most of the soil, after a night of scouring and soaking, in addition to the collapse of a large part of the soil above the excavation of the working face, there were several anti-slide piles The verticality also deviated, plus the loss caused by the collapse of the outer frame and the burial of related machinery, totaling more than 2 million yuan!

Fortunately, the accident occurred in the middle of the night, there were no workers in the work face construction, only the workers on duty were slightly injured when rushing to transport construction equipment, and there was no major problem after simple treatment!

After the accident, Tang Chengbo called Chen Qiang for the first time, Chen Qiang on the phone was sleeping in a daze, Chen Qiang opened his mobile phone and saw that it was only three o'clock in the morning!

"Uncle Cheng, have there been any casualties?" Chen Qiang's first thought was whether there were any casualties!

"No, only one person was slightly injured, I'll report to you first, I'll call Wu Youwei right away and ask him to come over immediately to see how to deal with it!" Tang Chengbo said!

"It's raining so hard outside, you should evacuate all the workers in the affected area first, and there don't seem to be residential areas or residential areas around, right?" Chen Qiang asked!

"No, can you inform Teacher Yang and Wu Gong to come over and have a look?" Tang Chengbo asked!

"We must come over to see, you immediately set up a warning area with a warning tape to remind passers-by to pay attention to safety, it will be dawn in a while, I will rush over immediately!" Chen Qiang said and began to get dressed, although his body was very tired, his mental thinking had begun to run at high speed!

Chen Qiang called both Teacher Yang and Wu Cheng, Teacher Yang asked Chen Qiang to go first, and he and Wu Cheng rushed over immediately! This is the first time that Chen Qiang went to the construction site in the middle of the night to rescue him, and he didn't tell Zhou Yuan, so as not to worry her, and tell her when the matter is finished!

Chen Qiang was the first to arrive at the construction site of the Luanjiang City slope project, Tang Chengbo was already waiting for him at the scene, Chen Qiang checked the peripheral situation according to Mr. Yang's requirements, and after confirming that there was no problem, he and Tang Chengbo waited for Mr. Yang and Wu Cheng to arrive, Deng Youwei also rushed over soon after Chen Qiang arrived, his spirit was still relatively good, it seemed that he had just finished playing mahjong and had not slept yet, so he couldn't see a little tired!

By the time Mr. Yang and the others arrived, it was already past four o'clock, and it was still dark, and it would take at least an hour for the sun to appear! Mr. Yang looked at the collapse, went to the conference room of the project department to check the geological survey report and design drawings, and immediately held an impromptu meeting!

"Please tell the construction unit about the situation first!" Teacher Yang said!

"Okay, the current collapse is the first construction face of the slope project, the width of the collapse is about 10 meters, and the collapsed soil is estimated to be more than 200 square meters. Tang Chengbo introduced!

"What about the opinions of the geological survey and design units?" Teacher Yang asked!

"The design scheme of this project should be written very clearly, the height of each working face can not exceed three meters, I looked at it, the current working face height is close to six meters, it should be caused by excessive excavation, due to the general geological conditions of the upper part, it has been raining recently for the stability of the slope is also very unfavorable, it is recommended that the drainage ditch is formed at the top of the slope as soon as possible after the weather is clear, and the soil that has been soaked is cleaned up, and the later stone is filled, and then backfilled!" Deng Youwei said!

"Chen Qiang, you have read a lot of information in the early stage of this project, tell me your opinion!" Teacher Yang said!

"I basically agree with Deng Gong's opinion, this matter has just been communicated, I will add another is that the anti-slide pile that has been a little inclined should increase the number of anchor cables for reinforcement, the estimated scheme is determined by the design unit, if necessary, it is recommended to increase part of the anti-slide pile in the collapsed place!" Chen Qiang said!

Teacher Yang nodded after hearing this and said:

"I agree with your opinions, this matter please Luancheng construction engineering to detect the displacement of the slope, report a set of data to the design and quality supervision station every day, and the specific monitoring plan is determined by the design! Uninstall the work to do it when the weather is clear, pay attention to safety! The procedures for reverse construction must be strictly followed, and if this situation occurs again, we will report the situation to the Urban Construction Bureau! Teacher Yang said!

Tang Chengbo did not raise any objections after listening, he wanted to send some red envelopes to each of the participants, but everyone refused! Tang Chengbo pulled Chen Qiang's clothes and signaled him to leave later, he still had something to say to him!