Second, the safety supervision work basis (1) building construction safety inspection standard JGJ59-99(2) building construction safety inspection standard (Zhejiang Jianjian 199 190) (3) Safety regulations for tower cranes in buildings (GB5144-85) Interim Provisions on Strengthening the Technical Responsibility System for Safety, Quality and Engineering Construction (J.J.J.Zi No.200335) (5) Notice on Printing and Distributing the Interim Provisions on Technical Responsibility System for Safety in Construction, safety supervision procedures (1), review of documents related to safety production by the construction unit: 1), post certificates and management of special operators; 2) Inspection, certificate of approval and filing procedures for hoisting machinery. 3) Technical performance and safety status of hoisting machinery and equipment. (2) Review the qualification certificate of the installation and disassembly construction unit and the safety qualification and supporting documents of the user unit (the general contractor shall uniformly manage the safety production work of subcontractors). (3) Review the safety technical measures in the construction organization design of the construction unit and the special construction scheme of the hoisting project: 1. Review the preparation and approval of the special construction scheme for hoisting engineering: 1. 1. The special construction scheme of hoisting project shall be compiled by the engineering and technical personnel of the construction unit; 1.2. The special construction scheme of hoisting project shall be jointly reviewed by the relevant departments of the construction unit such as technology, quality and safety; 1.3. The special construction scheme of hoisting project shall be approved by the technical director of the construction unit with legal person qualification; 1.4. The special construction scheme of hoisting project shall be submitted by the construction unit to the supervision unit and approved by the chief supervision engineer; 1.5. When the special construction scheme of hoisting engineering is changed or modified, it shall be approved by the original preparation approver according to the original procedure. 2. Review whether the hoisting project construction scheme meets the mandatory standards for engineering construction. 2. 1, whether the foundation and foundation engineering construction can meet the use safety and design needs; 2.2, crane disassembly safety measures are complete; 2.3. Whether the inspection and maintenance scheme of the crane in use is complete; 2.4, crane driver's safety education plan and succession inspection system is complete; 2.5, the safe use of crane system is sound. (4) Review the safety management system and the qualifications of safety professional management personnel. (5) Review the safety control measures of hoisting construction machinery and equipment. (6) The construction unit shall provide the origin, site and ex-factory certificate of safety facilities. (7) Supervise in strict accordance with engineering construction laws, regulations and mandatory standards. (8) Conduct on-site supervision and inspection, and issue a supervision notice in time when potential safety accidents are found, requiring the construction unit to rectify or suspend construction: 1. Daily on-site follow-up and supervision. According to the progress of the project, the supervisors will follow up and supervise the process safety, conduct on-site inspection, verify whether the construction personnel are operating in accordance with the safety technical precautions and operating procedures, and issue a supervision notice in time when potential safety hazards are found, and order the construction unit to make rectification; 2. It is required to set up a temporary cordon and assign special personnel to command and monitor during hoisting construction; Safety supervision engineer also carries out on-site monitoring. 3. Record the safety inspection in the supervision diary every day; 4. Communicate with the construction administrative department in time, report the safety situation of the construction site, make a written report when necessary, and make report records. (9) The construction unit refuses to rectify or stop the construction, and promptly reports to the construction unit and the construction administrative department. Four. The characteristics of safety supervision are that the hoisting project is dangerous, and the accident is random, hidden and sudden, which is greatly influenced by site conditions, personnel conditions, meteorological conditions and technical conditions. Due to the development of building engineering in the direction of high, large and difficult, the hoisting height is large, the hoisting weight is large, the hoisting components are huge and complicated, and the technical difficulty is great. In recent years, tower crane safety accidents have occurred frequently.
For example, the whole machine is overturned, the boom is broken, the tower is broken or the chassis is damaged. Causes: Overweight accidents account for more than half, and illegal operation, falling from high altitude, poor laying of walking tracks and poor construction of iron towers are also important reasons for accidents. Therefore, the supervisor's supervision of safety production focuses on prior control. In the process of construction implementation, he insisted on the principle of implementing safety technical measures before construction, strengthened inspection, regularly organized special inspections on production safety, urged the rectification of problems found, eliminated potential safety hazards and prevented accidents. V. Control points and target values of safety supervision 1. Safety supervision objective Safety objective: Assist the contractor to ensure the safe production of the construction project. Safety supervision control point 2. 1. A special construction plan must be prepared before the hoisting project construction, and it shall be approved by the technical director of the enterprise, signed and sealed, and submitted to the supervisor for review. .2. The supervision unit shall review the special construction scheme submitted by the construction unit, and the project leader shall sign the opinions on the technical documents; The unqualified special construction scheme shall not be implemented. 2.3, the operator should pass the physical examination, no diseases and physical defects that hinder the operation, and should go through professional training and examination to obtain the operation certificate issued by the construction administrative department or the motor vehicle driver's license issued by the public security department, before showing certificates. Students should work under the guidance of a special person. 2.4. Operators and cooperating workers must wear labor protection articles according to regulations, and their long hair should be tied tightly and not exposed. When working at height, they must wear seat belts. 2.5, lifting machinery must be in accordance with the technical performance, bearing capacity and conditions of use specified in the manufacturer's manual, correct operation, reasonable function, it is strictly prohibited to overload operation or arbitrarily expand the scope of use. 2.6, lifting commanders must hold relevant certificates. 2.7, crane amplitude indicator, torque limiter, lifting weight limiter and various travel limit switches and other safety protection devices, should be in good condition, sensitive and reliable, and shall not be arbitrarily adjusted or removed. It is forbidden to replace the operating mechanism with limiters and limiting devices. 2.8 During lifting operation, it is forbidden for anyone to stay, work or pass under the boom and heavy objects. When lifting heavy objects, it is forbidden to pass above people. It is forbidden to carry people by crane. 2.9, it is forbidden to use the crane for cable-stayed, oblique crane and lifting buried in the ground or solidified on the ground of heavy objects and other unknown weight. The concrete members or templates poured on site must be completely loosened before lifting. 2. 10, it is forbidden to lift heavy objects suspended in the air for a long time. In case of sudden failure during operation, measures should be taken to land the heavy objects in a safe place and repair them after turning off the engine or cutting off the power supply. In case of sudden power failure, all controllers should be set to zero immediately, the main switch of power supply should be turned off, and measures should be taken to make heavy objects fall to the ground.
The above safety supervision rules for lifting works are collected and sorted by Zhong Da Consulting Company.
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