How many safety hazards in construction projects will lead to accidents.

Qingdao Kangkun Machinery gives you a strong answer: Because our products were developed in 2002, there are no defects in the promotional products here. Scaffolding collapse, falling from a height and object strike accounted for 78% of the total number of construction accidents in 20 12-20 16. About 2528 people died, and other mechanical tower cranes were poisoned by electric shock, accounting for 22% of the total number of accidents. About 7 10 people died. In recent five years, 323 1 person died, with an average of 646 people per year. 20 17 will definitely not be low, but will increase, and it is expected to reach 700 people. In 20 18 years, if Kang Kun's proposal cannot be followed, no less than 600 people will still die.

Therefore, business ethics and the morality of life and death tell the construction craftsmen all over the country that this labor group is powerless to contain past construction accidents. In order to prevent construction accidents on site, in addition to safety production and technical training, the rest is God bless. In order to stay away from construction accidents, please read carefully, and you will benefit for life. You only have one life. You should take good care of your family's well-being, and hope that the national builders will take more precautions.

The alarm has been ringing for decades. Jurists have racked their brains for the management of construction accidents. Every year, they have to control the accident source, prone source, high-risk source, authoritative source standard and compulsory source standard, demanding that the current cover be reversed as soon as possible, zero tolerance, strict law enforcement, pragmatic, strict investigation of real reform, deepening rectification, highlighting the scene, leaving no dead ends, etc., and almost exhausted the strict terms, but the source cold has never improved, and 4 no 2 deployments have been made. These policies and instructions are far from being able to put out the fire, and the regulatory effect is increasing. It is still in a passive situation that is difficult to control and rectify.

I believe that the difficulty of walking comes from my inability to find a cure for my illness and the recurrence of my foot. It took 15 years to study the tower environment, the use of scaffolding steel pipes, solve the problem of steel pipe repair, implement the national standard scaffolding pipe problem, and implement product research and development. The high incidence of construction accidents is not entirely a problem that can be solved by the supervision and inspection, project supervision, contractors, construction parties and responsible persons under their jurisdiction, nor is it entirely a problem that the skilled craftsmen of the tower are qualified in technical training (and carefully put on the shelves at the scene), which is only a unilateral problem. Just like our soldiers went to the battlefield, it was too late to sharpen their knives and practice their guns. It is an indispensable systematic engineering and comprehensive social management problem to rectify the problems of non-conformity of building materials, economic market order and implementation of national standards. Therefore, only controlling the source of prone and high-incidence construction accidents is the effective measure at present, and it is urgent.

Our company produced household appliances in 1992, and in 2000, we reformed and innovated 9 patented floor dusters for buildings. Entering the construction industry, scaffold collapse accidents frequently attract people's attention. Through the opportunity of the twice-yearly national construction machinery trade fair, the site environment in all parts of the country is investigated, and the factors causing construction accidents are understood through communication with construction craftsmen. The defects of the old steel pipe repairing machine and the causal relationship of why almost 100% of the national construction industry did not implement the national standard materials were locked, which stimulated the research and innovation of the scaffolding steel pipe straightening, derusting and painting machine. It is considered that the only way to curb the frequent construction accidents is to eradicate the accidents, and we must stand on the interests of users, aiming at saving elbows and not wasting them, so as to achieve good straightening effect, cleanliness, firm paint adhesion and long anticorrosion life. In order to restore the application of the national standard scaffolding steel pipe with a wall thickness of 3.6 mm, it is necessary to repair and renovate the thickened steel pipe to limit accidents, reduce losses, innovate new ideas with high added value and stabilize the development of enterprises.

As early as 2002-2005, the trial steel pipe repair machine was very popular with users. In 2008-20 10, five patented new products were put on the market, and the struggle against infringement was in full swing throughout the country. 20 12-20 14, 6 innovative patents, 1 1 patent and 15 model made by subtle iteration, won the award of China National Intellectual Property Administration (China patent star enterprise). The appearance of this kind of straightening, derusting and painting machine for thickening scaffold pipe is very important for restoring national standard 3. However, contrary to expectations, through Ali Taobao HC's inquiry about more than 200 shanzhai dens in Hebei, the market order was seriously disturbed, the inferior products of the old shanzhai were copied and tampered with Kangkun brand 1 1 patent, and the mechanical structure was falsely advertised as a national fraud patent. For details, please refer to Kangkun website (infringement notification). I never thought that innovation and entrepreneurship would have such a result.

According to the following data, with the advent of Kangkun brand scaffolding pipe refurbished machine from 2002 to 20 16, the annual sales volume of 300 sets is compared with the current annual sales volume of more than a dozen sets. Although this theory may not stand up to scrutiny, it reflects the current problem of casualties in construction accidents from the side. Of course, it is also inseparable from the national safety management awareness and the safety awareness of construction personnel. Looking back on the Internet, I found that there were 1524 deaths in 2003. In 2004 1342 people died. In 2005 1 193 people died. In 2006 1048 people died. In 2007 10 12 people died. In 2008, 92 1 person died. In 2009, 802 people died. 20 10 772 people died. In 2065438, 738 people died. In the last five years: 624 people died 20 12. 20 13 670 people died. 20 14 648 people died. 20 15 554 people died. 20 16 735 people died. Exclude omissions, lifelong disability, minor injuries, 12529 death.

According to the statistics of Ministry of Housing and Urban-Rural Development 1992, scaffolding collapse accidents accounted for 59% of the total accidents, and the statistics from 2003 to 2009 after 10 accounted for 54.29%. Twenty years later, the number of casualties in 28 major accidents in the national construction industry was 1 13, of which 56 were scaffold collapse accidents. However, construction accidents have changed in recent years.

20 12, according to the type, 257 cases fell from a height, accounting for 52.77% of the total; 67 cases collapsed, accounting for13.76% of the total; 59 object attacks, accounting for12.11%of the total; (The first three types of accidents account for 78.64% of the total number of accidents, and other accidents account for 2 1.36%. There were 487 accidents and 624 deaths.

In the first three quarters of 20 13, according to types, there were 2 13 falls from heights, accounting for 55.47% of the total; 59 collapse accidents accounted for15.36% of the total; There were 50 object strikes, accounting for 13.02% of the total (the first three types accounted for 73.85% of the total construction accidents), 545 accidents and 757 deaths.

According to the type of 20 14 years, there were 276 falls from high places, accounting for 52.87% of the total; Collapse accidents occurred from 7 1, accounting for13.60% of the total; 63 cases were struck by objects, accounting for12.07% of the total; (The first three categories account for 78.54% of the total number of construction accidents, and other accidents account for 2 1.46%. There were 522 accidents and 648 deaths.

According to the types in 20 15, there were 235 falling accidents, accounting for 53. 17% of the total. 66 cases were struck by objects, accounting for14.93% of the total; 59 cases collapsed, accounting for13.35% of the total; (The first three categories account for 8 1% of the total number of construction accidents, and other accidents account for 19%. There were 442 accidents and 554 deaths.

There were 333 falling accidents in 20 16, accounting for 52.52% of the total. 97 accidents caused by objects, accounting for15.30% of the total; 67 collapse accidents, accounting for10.57% of the total; (The first three types of accidents account for 78.39% of the total number of accidents, and other accidents account for 2 1.5438+0%. There were 634 accidents and 735 deaths.

To sum up, three high-risk accidents, i.e. falling from a height, object hitting and scaffold formwork collapsing, account for 78% of the total construction accidents. Other mechanical tower crane electric shock poisoning foundation pit, etc. Accounting for 22%. In recent five years, 323 1 person died, with an average of 646 people per year. At the end of 2065, 700 people died, 438+07, so it is easy to wait and see.

Then, since it was determined that the three high-risk accidents accounted for 78% of the total number of construction accidents, they could not be controlled and alleviated for a long time, and the accidents came suddenly. Then they came to the scene to intercede at the first time, warned them to learn from the lessons for the second time and dig deep into the root causes of the accidents, and ordered hopeless measures for the third time, and the construction accidents remained high year after year. "The disease is careless, and the disaster is subtle." In fact, the factors prone to high-risk accidents are all at the feet of the people who eat melons, but they failed to identify the source of the accident, so they could not curb the occurrence of construction accidents. It seems that governance has reached its limit, with an average death of more than 640 people for five consecutive years. If it falls to 300 deaths in 2008, it will certainly be a long way to go. Now whoever commits suicide and is permanently disabled has a terrible aftertaste. How can the scene not be chilling?

To sum up, it is considered that human life is crucial, and the following accident sources must be approved and contained in order to reverse the uncontrollable passive situation in the jurisdiction.

1. Almost 100% of scaffold pipes used in China do not meet the national standard of 48 outer diameter and 3.6 wall thickness, which seriously weakens the safety guarantee coefficient of technical design.

2. The old model can't repair the national standard steel pipe, forcing the construction industry to buy non-standard pipes, and the paint is thicker every year, and it is inspected and mixed into the mixing tower.

3. Counterfeit and shoddy products of cottage operators pass off as new products, and false propaganda is rampant, which leads to high incidence of construction accidents and is difficult to control.

4. It is meaningless not to control the root cause of the silk reeling accident, which leads to the regrettable effect of prevention and supervision, and the casualties of helpless craftsmen are not reduced.

5. Frequent accidents come from the maintenance of steel pipes. It is an indisputable fact that counterfeit and shoddy products are implemented in accordance with the national standard. So accidents are hard to avoid.

The above accident factors are suggested to be supervised by national innovation, if not controlled. The trend of casualties will continue into the future, and we will see at the end of 20 17.

The cause and effect of the construction accident are nothing more than the following factors: please ask experts from all walks of life to identify it:

1. Scaffolding pipe leasing industry, as a construction industry and road and bridge engineering, cannot do without steel pipes as supporting towers. It is an indispensable and important process for the repair and renovation of scaffolding pipes. Due to outdoor wind, sun, humidity, corrosion, repeated construction stress, local bending deformation during disassembly and transportation, etc. In the terminal and fastener of building iron tower and large-area cross connection, whether it is used for any erection structure such as single-row or double-row full-length pipeline, such as thin bending of steel pipe wall and splitting of spherical surface density, its axial buckling stress completely deviates from the direction. When it is under inward pressure, it becomes shorter and more fragile. When it extends beyond the scope, even if the non-standard thin-walled pipe is slightly bent, it will naturally lose its protective effect, leading to the displacement of the frame structure and the loosening, falling off and fracture of the fasteners. Therefore, the material and thickness of scaffold pipe depend on the axial force of national standard steel pipe and non-standard steel pipe, which is the biggest key to ensure the safety factor.

Second, even if the tower is constructed in strict accordance with the technical specifications, it is a pity that almost 100% of scaffold steel pipes used in China do not meet the national standard of 3.6mm wall thickness. In terms of probability, if the wall thickness of steel pipe is reduced by 0.5mm, the bearing support force will be reduced by 50 kg per Mi Yue, the bending error will be 0.5 mm per meter, and the moment of inertia loss will be about 10%. If the wall thickness is 3.2-3.0-2.75-2.5-2 .0mm, the inertia moment loss of steel pipe will reach 20-30%.

In addition, because a ton of steel pipe has at least 1-2 small hard bends, twisting bends and left and right side bends, due to the mechanical structural defects of the old scaffold pipe repair machine, it can't be repaired, and the labor is not worth the loss. A 6-meter-long 70 yuan is wasted, and the annual loss of 1000 tons of steel pipe is 6.5438+0.5 million yuan.

Because of outdoor use, the experience value: a steel pipe loses at least one penny a day, and a thousand tons of pipes naturally lose more than 65438+ million a year. Non-standard thin-walled pipes and rusted pipes that are not straight are mixed into the tower, and they are used in a vicious cycle year after year. There is no doubt that unimaginable dangers lurk. But driven by interests, most of them are tacit. The destruction of Li Qian dam by ant nests has little to do with Shilita's contempt for mechanics. Therefore, these problems that violate physics and illegal materials often have a domino effect instantly.

Thirdly, as we all know, the weighing law of 10,000 kg of straight pipe top and 1,000 kg of bent pipe top, and the steel pipe is not up to standard, which seriously weakens the technical design guarantee coefficient, reduces the rigid bearing capacity and becomes unstable. Whether it is their own or rented scaffolding pipes, the key is the uneven mixing of scaffolding steel pipes, which is the terrible consequence that well-known builders are most worried about. People are ready to move on the formwork of the pipe rack platform, and the stress inside and outside the thin-walled pipe is not straight, sometimes the wind ripples, and the suspense is swaying at high altitude. In this unstable state, the material is subjected to uneven stress from one side to the point, and other factors, whether it is used in any installation structure, such as vertical rods, pull rods, full-house tubes, scissors frame tubes, etc. Because non-standard thin-walled pipes are more prone to bending deformation, loose fasteners and broken slip lines, they are put into operation in timid high-altitude environment.

Fourth, the emergency plan for construction accidents is nothing more than compensation for the injured and the families of the deceased. Dealing with the aftermath is included in the interests involved in lifelong disability and compensation for minor injuries. As a casualty, it is subject to people. Who will mention unreasonable phenomena such as non-standard thin-walled rusty pipes in person? The pattern of unfavorable eventful autumn has long passed. Therefore, it is not difficult to understand that builders are good at winning competitions, and it is not difficult to make up for the expenses if they are alert to more bends, thinner pipes and more rust.

5. There are only two kinds of steel pipe repair equipment in China. Up to now, there is no scaffolding pipe repair machine that can automatically straighten, derust and paint large, medium, small, hard-bent and hard-twisted steel pipes. However, regarding the virtual network management and business ethics enjoyed by the true and false, what are the inferior products of the cottage called roller type, pressure wheel type, hyperbola type, centrifugal type, rotary type, spiral type and rotary type? False propaganda such as new products, multi-function, one-time automation, professional leader and three-in-one has seriously eroded users' right to know and disrupted the economic market order. For a long time, due to the backward mechanical structure of the old model, the repair of national standard pipes has not been encouraged, resulting in the construction industry having no choice but to buy non-standard thin-walled pipes of 3.2-3.0-2.75-2.5-2.0mm instead of platform towers, which has become a common phenomenon in China, and almost 6,544 pipes in various regions of the country can prove this. Year after year, the old model of Shanzhai has repaired the irregular and irregular thin-walled bent and rusted pipeline, but it has not been eliminated, updated, recycled, simply painted, thickened, supervised and inspected, and incorporated into the construction tower, which has caused hidden dangers of chain factors and is the main source of high construction accidents. Over the years, this situation has been unable to control and contain, making the construction safety management into a passive situation. So it is very difficult for these key points not to take measures to avoid accidents.

Six, the scope of application of scaffolding steel pipe in China:

1, the national standard scaffolding pipe has an outer diameter of 48.3mm, a wall thickness of 3.6mm, a length of 6 meters and a weight of 25 kg = 1 ton, with 39 pieces, which are almost rare.

2. Non-standard steel pipes have an outer diameter of 48mm, a wall thickness of 3.2mm, a length of 6 meters and a weight of 22.9 kg = 1 ton, and are rarely used.

3. Non-standard steel pipes have an outer diameter of 48mm, a wall thickness of 3.0mm, a length of 6m, and a weight of 2 1.3kg = 1 ton, and 47 steel pipes are generally used in larger enterprises.

4. Non-standard steel pipe has an outer diameter of 48 mm, a wall thickness of 2.75 mm, a length of 6m, and a weight of 19.5 kg = 1 ton, 5 1 piece, which is widely used.

5. Non-standard steel pipes with an outer diameter of 48mm, a wall thickness of 2.5mm, a length of 6 meters and a weight of 17.7kg = 1 ton, 56 pieces, are widely used for blending.

6. Non-standard steel pipes have an outer diameter of 48mm, a wall thickness of 2.0mm, a length of 6m and a weight of 14kg = 1t, and 70 steel pipes are used in remote areas.

Whether purchased or leased, steel pipes are light in weight, large in quantity, low in cost and high in interest rate, but the hidden dangers and casualties caused by potential weak links are higher.

Seven, network video, text, pictures, physical machines are obvious to all. Even if the non-standard scaffold pipe is straightened, its front section must be a straight pipe of about 2 meters, and its back end must be bent by a large arc in the right direction, so it cannot be painted at the same time. When rust removal and painting are needed, it cannot be straightened. Even if the non-standard thin-walled pipe is repaired, there will be small hard bends at the front and rear ends of the steel pipe from 10cm to 1m, and the torsion bending and left and right side bending will be rejected, which will be a great waste and the wall thickness of the national standard 3.6 will be discouraged. Because the circular tube is hollow, each different bending arc needs different pressure and other factors, even if the pressure gap is adjusted frequently, it will be extremely difficult to achieve the straightening effect, and the steel tube will be crushed due to excessive pressure. In addition, at present, all models are directly derusting, and steel wire brushes collide with steel pipes, and a few steel wire brushes are too short to reach the steel pipes and fail. Unclean derusting leads to poor paint adhesion, low repetitive work efficiency and poor effect. The old model has caused great waste to the annual cycle of irreparable hard bends and was cut off as a short-term use of cross braces. Failure to eliminate them and mix them with building towers led to construction accidents.

Eight, list online comments:

1. Some experts suggest that scaffolding is not a technically complicated link. Whether scaffolding accidents can be eliminated is directly related to whether the safety responsibility of enterprises is implemented and whether the government supervision responsibility is in place.

2. Some senior people said. "In the field of construction, scaffolding is often considered as one of the links with low technical content and low construction requirements. But it is precisely this link that has now become the most vulnerable' pain point', and an accident is a big problem. "

3. Builders hate it, the wall thickness of scaffold pipe does not meet the national standard, and there is no equipment to repair the national standard scaffold steel pipe in the market. It is difficult to straighten and eliminate the bending of steel pipes, so most steel pipes below 3 mm are used for simple repair and mixing, which is impossible to prevent and more likely to cause accidents.

4. Senior experts pointed out that how to get rid of the "scaffolding trap" and make grass-roots supervision no longer a mere formality, a mere formality and a mere name, has become an important issue that the whole society should pay attention to and reflect on. The universality of the accident means that the last line of defense has become a dummy. (search more online. )

5. In the process of building construction, accidents are sudden and accidental, which brings difficulties to safety management. This is the main theoretical basis of the misconception that "accidents are the cost of construction", which further contributes to the high incidence of construction accidents and makes safety management fall into the strange circle of passive "accident management".

Market situation: our company pays attention to scientific and technological innovation to consolidate the quality foundation, so that the efficiency and effect of products have incomparable characteristics of similar products. Because of this, it has attracted many infringements. After arresting many companies such as Nanjing Wanzhong Machinery Factory, in recent years, it has been shoddy by fake and shoddy products in the dens of Hebei Shanzhai, just like copying and tampering with the patent features of this book to cheat and sell it all over the country. Li Bo of Hebei Gong Ming Machinery Factory pretended to be five patents of Kangkun brand ash remover retrieved by the National Re-examination Committee, including domestic patents of the United States and Japan, and searched for authorization, tricked into the science and education channel of CCTV, and made up a column that I love to invent, which was broadcast to the whole country at will. According to the evidence obtained from chatting with the parties, it is said that giving CCTV reporters 20 thousand yuan will make them appear in the camera soon, and so on. I thought Kangkun brand products would be promoted throughout the country, which gave birth to a' new equipment upgrade'. However, at the same time of innovation, many fake and shoddy products resist, and even the best products will be vulnerable, and the product market will enter a realistic state in which bad money drives out good money.

Qingdao Kangkun Machinery Specialty has created 15 excellent new model, which is the only equipment in China that can repair and renovate steel pipes with a wall thickness of 3.6mm or more than 4.0mm in the national standard. The humanized design is extremely perfect, and the efficiency effect is indeed thousands of similar binding products, which cannot be compared with a Kangkun brand. It is realized that any large, medium, small, hard bend, octagonal torsion bend, upper, lower, left and right hard edge bend can be straightened, derusted and painted at the same time, with extremely high efficiency, good straightening effect, labor and time saving and no waste of elbow.

In short, the experience gained in product research and development in 15 years, the upgrade of safety production and the height of "the foundation of building a country, the instrument of rejuvenating the country and the foundation of strengthening the country" created by China are hard courses without shortcuts. It is an indisputable fact that whether scaffold formwork collapses, falls from a height or is struck by an object, the accidents all come from the quality of scaffold steel pipes, the implementation of national standards for scaffold steel pipes and the containment of counterfeit and shoddy problems. Thoroughly solve the factors prone to high-risk construction accidents: accounting for 78% of the total construction accidents, accounting for two-thirds and 50% respectively, which can easily save 300 lives every year and reduce the pain and economic losses caused by thousands of seriously injured and permanently disabled people. Labor as a construction worker is different from ground operation, so it is not difficult to reduce accidents and save 350-400 lives every year. In order to devote ourselves to the steady development of the national economy and the new era of national humanities towards harmony and civilization. The new atmosphere, new measures and new ideas of governing the country, from the national jurisdiction units, to the local governments, and then to the construction industry entities, * * * Qi Xin will work together to eradicate the problem, and the solid framework structure and stable working platform will surely reverse the long-standing passive situation that construction accidents are difficult to control.

The right to interpret this article belongs to Qingdao Kangkun Machinery Company. Author Cai Shangxi: If there is anything wrong with the above, please criticize and correct me. Please forgive my untidy style. Address: 0/00m west of Bei 'an Sub-district Office, Jimo District, Qingdao. 20 18 years 1 5th of the month.