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Major accident of “10.5” construction elevator falling in Chengdu in 2015: at about 10:00 on October 5, 2015, SC200 / 200 construction elevator of No.2 building of “Shilong square” project in Tianfu first street of Chengdu high tech Zone fell during operation, resulting in 4 operators in the cage of the accident elevator died on the spot
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The elevator suddenly out of control in the process of rising, straight to the top floor of the 34th floor (100 meters from the ground), the steel rope broke, and the elevator fell to the ground freely after losing the restraint of the steel rope
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Direct cause of the accident: according to the preliminary investigation and analysis, the direct cause of the accident is that when the top section of the elevator guide rail of the construction elevator was installed on May 14, two of the four high-strength connecting bolts that should be connected between the standard sections of section 64 and 65 were missing
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During the lifting process of the construction elevator, due to the influence of gravity, the connection part of standard sections 31 and 32 was torn, resulting in three people and the east side car (cage) Fall together
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10 building of China Germany future city phase I four group residential construction project, causing two deaths
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Direct cause of the accident: three construction elevator installers (temporary workers) violated the operation regulations after completing the assembly of standard sections on the ground, did not conduct self inspection, and did not find that there was only one bolt fixed at the connection part of standard sections 31 and 32
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Source: Qingdao Municipal Bureau of housing and urban rural development, construction elevator, etc
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The direct cause of the accident: construction personnel Zhou and other three people in the case of special equipment operators off duty, in violation of the operation specification, operate the elevator equipment without authorization
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During the lifting process of the construction lifting equipment, the main lifting steel wire rope jumps, causing the steel wire rope to keep winding at the left drum bracket, generating enough destructive force to cause the steel wire rope to twist and deform until it is pulled to break, resulting in the steel wire rope breaking, and the cage falling is the direct cause of the accident
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The direct cause of the accident: the rack of the accident elevator was out of mesh with the gear of the transmission and anti falling device, resulting in the cage falling to the ground along the track under the action of gravity
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During the lifting process of the construction lifting equipment, the main lifting steel wire rope jumps, causing the steel wire rope to keep winding at the left drum bracket, generating enough destructive force to cause the steel wire rope to twist and deform until it is pulled to break, resulting in the steel wire rope breaking, and the cage falling is the direct cause of the accident
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The circular is as follows: the construction, construction, supervision and construction professional contractors will be criticized in a circular throughout the city
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In recent years, construction elevator accidents in Baotou City, 2020 “5.19” construction elevator fall accident: at about 17:30 on May 19, 2020, Baotou Zhonghai · Heshan county (North District) construction bid section 2 building project construction elevator cage fall accident, causing three deaths
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As the industry said, “an accident of the elevator is a big accident”, so we must pay attention to the safety of the construction elevator
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The direct economic loss of the accident was about 1000 yuan Ten thousand yuan
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“4.25” construction lift major accident in Hengshui, Hebei, 2019: on April 25, 2019, a major accident of construction lift car (cage) falling occurred at the construction site of Building 1 of feicuihuating project in Hengshui, Hebei, causing 11 deaths and 2 injuries, with a direct economic loss of about 18 million yuan
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When the cage reached the standard section 65 or above, the joint of the standard section failed
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The direct cause of the accident: the two bolts on the west side of the connection position of the standard section 16 and 17 of the accident construction elevator were not installed, the self inspection was not carried out after the section was added and attached, and the illegal use was not carried out before the acceptance, which were the direct causes of the accident
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19 people died
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13 people were arrested with the approval of the procuratorial organ! In 2018, Xuchang “1.24” construction elevator fell seriously: at about 15:00 on January 24, 2018, a construction elevator fell during the demolition of No.5 building of lixinjiayuan, Tangfang, Xuchang Economic and Technological Development Zone, Henan Province, killing four construction workers
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The cage, together with the standard section 65 or above and the attachment parts, overturned and fell
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Suspend the bidding qualification of the construction unit, the construction unit and its project manager Li moujie, the supervision unit and its project director Chen moubo within the scope of the city; suspend the installation and disassembly business of the construction lifting machinery of the construction professional contractor within the scope of the city
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Six people were thrown out of the elevator when the elevator fell more than ten floors in the accident; the upper limit of the elevator failed to work normally, and the elevator suddenly ran out of control and rushed to the top floor in the process of rising; the anti falling safety device failed to work normally, and the elevator freely fell to the ground after the steel rope was broken
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The operator must be in good health
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Major accident of “May 16” construction elevator falling in Yulin in 2020: at about 19:20 on May 16, 2020, the construction elevator of No.5 building of No.1, No.2 and No.5 building project of No.5 building of phase V A1 of Phoenix City in Yulin city fell from a high altitude, resulting in the death of 6 workers in the construction elevator cage
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2) The safety protection device of the lift is damaged
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Major accident of Fuyang “1 · 21” construction elevator falling in 2018: at about 16:30 on January 21, 2018, a construction elevator of 12 building project in lixiaowa resettlement area, Hexi, Taihe County, Fuyang City, Anhui Province fell during the demolition, causing three construction workers to die
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On the evening of May 16, the workers took the right cage of the construction elevator to work overtime
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The boarding pass of the lift indicates that the authorized number of the lift is 12, but in fact it carries 19
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The lift operator is not a professional operator and operates the lift by himself
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The boarding gate of the elevator fence was abnormal
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It is forbidden to work after drinking
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The direct causes of the accident are as follows: 1) among the four connecting bolts at the joint of the two standard sections of the guide rail of the construction elevator, the nuts of the two stressed bolts on the right side fell off and could not bear the force, causing the cage to overturn
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For the construction projects of construction, construction and supervision companies in Qingdao, the self inspection and self correction of safety production shall be carried out in an all-round way, and no construction shall be carried out if the self inspection fails to reach the standard
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Recently, Qingdao Municipal Bureau of housing and urban rural development reported that on November 4, 2020, a car crash occurred during the installation of construction elevator in No
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What are the general rules and precautions for safe operation of construction elevator? The following points should be noted! General provisions 1, lift driver must pass the special safety technical training, pass the examination and obtain the special operation certificate
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The direct cause of the accident: construction personnel Zhou and other three people in the case of special equipment operators off duty, in violation of the operation specification, operate the elevator equipment without authorization
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11 people were pursued for criminal punishment! //////////In recent years, a number of construction elevator falling accidents have occurred nationwide
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As a result, three of the six workers in the cage died on the spot and three died after being sent to the hospital
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Each elevator must be equipped with at least two operators to meet the needs of construction
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In 2012, Wuhan “9 · 13” construction elevator fall accident: at about 13:10 pm on September 13, 2012, 19 workers at the construction site of No
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The visual acuity of both eyes shall not be less than 0.7, no color blindness, no hearing impairment in both ears, no epilepsy, hypertension, heart disease, vertigo and sudden disease, no disease and psychological defect hindering operation.
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3) The workers operate without certificate
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7-1 building in area C of Wuhan “East Lake Garden” project department took a SCD200 / 200 construction elevator to work in the absence of construction elevator operators
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On November 8, 2017, Putian “11 · 8” construction elevator falling accident: on November 8, 2017, Putian Xiuyu district had a large accident in which three people died due to the falling of construction elevator
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Two were put on file for investigation
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4) Personnel overload
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