The reason is that the installation and disassembly personnel of the tower crane seriously violated the rules, causing the beam pin shaft to slip from the step arc groove at the northwest end, resulting in the instability of the upper load of the tower crane due to the load-bearing at one end of the jacking beam, resulting in the pier falling of the upper structure of the tower crane and the collapse.
Third, safety education and training are not in place.
The live video showed that the accident made a huge sound and some structures of the ferris wheel were distorted.
Third, the supervision and inspection of the industry regulatory authorities are not in place.
Accountability: administrative penalties shall be imposed on the illegal acts of 8 responsible units.
64 relevant responsible persons were investigated for responsibility according to law and regulations.
Fourth, the construction unit does not pay enough attention to emergency drill and safety training and education of construction personnel.
Accountability: give relevant units a notice of criticism, an appointment, a warning conversation, a fine, revocation of qualification, revocation of work safety license, etc.
Main lessons: first, the main responsibility of enterprise safety production is not implemented in place, and the construction and operation in violation of laws and regulations.
Second, the internal approval process management of the enterprise is not in place.
Main lessons: first, the concept of “life first and safety first” has not been firmly established.
Third, supervision and law enforcement are seriously irresponsible.
Second, all parties involved in the construction do not have strong awareness of the safety risks of the construction project under complex geological conditions, especially the risk of water and mud inrush.
Fifth, the industry safety supervision of functional departments is not enough.
Third, the supervision and inspection of the industry regulatory authorities are not in place.
With the passage of time and the tunnel construction disturbance, the cracks gradually penetrate and the seepage channel expands.
Fourth, the supervision and inspection of the industry regulatory authorities are not in place.
At present, the project has been completely shut down, and the cause of the accident is under investigation.
4 “11.26” major water and mud inrush accident in Anshi tunnel of Yunfeng Expressway in Fengqing County, Lincang City, Yunnan Province at about 17:21 on November 26, 2019, a water and mud inrush accident occurred in Anshi tunnel of Yunfeng Expressway under construction in Fengqing County, Lincang City, Yunnan Province, resulting in 12 deaths and 10 injuries, and a direct economic loss of 25.2501 million yuan.
24 relevant responsible persons were investigated for responsibility according to law and regulations.
Afterwards, a large number of material sources rapidly deposited at local blocking points, with a sharp increase in potential energy and pressure, resulting in the second water inflow and mud inrush.
In addition, the illegal reinforcement and welding of the bottom supporting steel column before the accident caused the instability and damage of the steel column, resulting in the overall collapse of the building.
Second, the implementation of local territorial management responsibilities is not in place.
5 “3.7” collapse accident of Xinjia hotel in Quanzhou, Fujian at 19:14 on March 7, 2020, the building where Xinjia hotel is located in Licheng District, Quanzhou City, Fujian Province collapsed, resulting in 29 deaths and 42 injuries, and a direct economic loss of 57.94 million yuan.
After the first water gushing and mud inrush, the site was blindly rescued, and the accident site was out of control, resulting in the further expansion of casualties.
The hidden dangers exposed in typical accident cases in the field of construction below life-threatening must be carefully investigated and handled, and the safety risks must be resolved in time.
26 relevant responsible persons were investigated for responsibility according to law and regulations.
3 major accident of “May 16” plant collapse in Changning District, Shanghai at about 11:10 on May 16, 2019, a plant at No.
6 “5.23” major collapse accident in mabugang Town, Longchuan County, Heyuan City, Guangdong at about 12:10 on May 23, 2020, a major accident occurred at the illegal construction site of Far East Garden, mabugang Town, Heyuan City, Guangdong Province, resulting in 8 deaths, 1 minor injury and a direct economic loss of 10.68 million yuan.
Fifth, the relevant departments failed to check the examination and approval at all levels.
After the accident, relevant departments rushed to the scene for rescue and disposal at the first time, and four trapped people were successfully rescued.
Main lessons: first, the main responsibility of enterprise safety production is not implemented, and the supervision of construction projects is not in place.
The reason is that the bearing capacity of the load-bearing brick wall (column) on the first floor of the plant is insufficient, no measures to maintain the stability of the wall are taken during the construction, and the bearing capacity and stability of the South load-bearing wall are further reduced during the reconstruction construction.
2 major accident of “4.25” construction elevator car falling in feicuihuating, Hengshui City, Hebei Province at about 7:20 on April 25, 2019, a major accident of construction elevator car (cage) falling occurred at the construction site of feicuihuating project 1# building, Hengshui City, Hebei Province, resulting in 11 deaths and 2 injuries, with a direct economic loss of about 18 million yuan.
The reason is that the accident unit reconstructed the building of Xinjia hotel from the original four storey illegally added mezzanine into seven floors, reaching the ultimate bearing capacity and in the critical state of collapse.
1 “1.23” large tower crane collapse accident of Huarong pearl phase III Project in Huarong County, Hunan Province at 9:15 on January 23, 2019, The tower crane of building 10 of Huarong Mingzhu phase III project under construction in Huarong County, Yueyang City, Hunan Province collapsed during disassembly, resulting in five deaths and direct economic losses of more than 5.8 million yuan.
The reason is that there is a hidden water bearing fracture zone in Anshi tunnel.
26 relevant responsible persons were investigated for responsibility according to law and regulations.
Third, the risk control of survey and design, construction, supervision and other links is not in place.
The fourth quarter is a period of high incidence of accidents in the field of construction.
When the strength of the surrounding rock at the tunnel crown reaches the limit critical state, the water and mud burst for the first time.
During the construction, some plant structures collapse in a chain after the instantaneous instability of the load-bearing brick wall (column), and the living area is located in the construction area, resulting in mass deaths and injuries.
Accountability: three units were given corresponding administrative penalties.
31 relevant responsible persons were investigated for responsibility according to law and regulations..
Accountability: the unit responsible for the accident shall be punished by revoking its business license, recording serious bad behavior of the enterprise, being included in the joint punishment blacklist, fines, reducing its qualification, temporarily withholding its work safety license, etc.
Sixth, enterprises act recklessly in violation of laws and regulations.
Main lessons: first, all parties involved in the construction did not firmly establish the concept of safe development and did not really put safety in the first place.
Main lessons: first, the main responsibility of enterprise safety production is not implemented in place, and the on-site management is chaotic.
35 relevant responsible persons were investigated for responsibility according to law and regulations.
Main lessons: first, the main responsibility of enterprise safety production is not implemented, and the safety production management on the project site is chaotic.
Fourth, the problem of formalism in the investigation and treatment of potential safety hazards is prominent.
On October 18, a Ferris wheel under construction collapsed in Jin’an District, Fuzhou City, Fujian Province, trapping four construction workers.
148 Zhaohua Road, Changning District, Shanghai collapsed partially, resulting in 12 deaths, 10 serious injuries and 3 minor injuries, with a direct economic loss of about 34.3 million yuan.
The reason is that the formwork support system (wooden support frame) in an unstable state overturned and collapsed under the construction load of the roof decoration flower rack (roof frame) on the 20th floor of the building, resulting in casualties of operators falling on the flower rack.
Second, the territorial management responsibilities of local governments and the supervision responsibilities of industry competent departments are not fully implemented.
The cause of the accident was that the two bolts on the west side of the connection position of sections 16 and 17 of the accident construction elevator were not installed, the self inspection was not carried out as required after adding and attaching, and the accident was caused by illegal use without acceptance.
Second, the approval of special construction scheme is a mere formality, the control is not strict, and the scheme disclosure and safety technical disclosure are missing.
Second, the awareness of administration according to law is weak.
Accountability: the accident unit shall be given administrative penalties such as reducing its qualification, temporarily withholding or revoking its work safety license and fines, and the relevant responsible personnel shall be fined, dismissed, punished by Party discipline, revoked its qualification certificate and refused to register for life.
Accountability: revoke the business license, special industry license, health license and other licenses of the accident unit and technical service institution, revoke or reduce the enterprise qualification, revoke the fire design record, fire completion acceptance record, be included in the “blacklist” of construction market entities, and impose a fine; The qualification certificates of relevant responsible personnel shall be revoked.
