The latest construction hazard source is coming, quick contr
2021-01-26 20:41 admin
What is the cause of 80% of safety accidents? Is lax. One half of the reasons for the laxity is the lack of attention to production safety, the other half is the negligence of the source of risk judgment. In order to implement safety in production, we must improve the ability of hazard identification of workers besides the education of safety in production.
Recently, the ministry issued about print and distribute five other hoisting machinery, foundation pit engineering in greater danger of partial project construction safety notice, notice the attachment contained in the safety production management committee office of lifting machinery, lifting machinery used for disassembly operations installation, foundation pit engineering, scaffolding, templates, and other five greater danger of partial content of construction safety, to control safety inspection.
Safety points of hoisting machinery installation and disassembly operation
1. Lifting machinery installation and disassembly operations must be prepared and reviewed in accordance with the provisions of the special construction plan, over a certain scale to organize experts to demonstrate.
The installation and disassembly unit of hoisting machinery must have the corresponding qualification and safety production license. It is strictly prohibited to engage in the installation and disassembly operation of hoisting machinery without qualification or beyond the scope.
Lifting machinery erection and disassembly personnel, lifting machinery drivers and signal operator must obtain operation qualification certificates for special operation personnel in construction.
IV. Before erection and disassembly of hoisting machinery, the erection and disassembly unit shall go through the formalities of erection and disassembly notification as required.
5. Before the installation and disassembly of hoisting machinery, safety technical disclosure shall be made to the site management personnel and operation personnel.
VI. The installation and disassembly of hoisting machinery shall be organized and implemented in strict accordance with the special construction plan. The relevant management personnel shall supervise the operation on site.
VII. The jacking and attachment operation of hoisting machinery must be carried out by the installation unit with corresponding qualifications in strict accordance with the special construction plan.
In case of strong wind, fog, heavy rain, heavy snow and other bad weather, the installation, disassembly and jacking operation of hoisting machinery are strictly prohibited.
Nine, tower crane jacking, should be the rotary support and jacking sleeve reliable connection, and should be balanced. In the process of jacking, balance should be ensured and lifting, turning and amplitude variation operations should not be carried out. After the end of jacking, the standard section should be reliably connected with the rotary lower support.
10. If the attachment is needed after the lifting machinery is added, the attachment device should be installed first and then the jacking and adding the joint should be carried out in the order. Adhesion devices must comply with standard specifications. During the disassembly operation, the section should be lowered first, and then the attachment device should be removed.
Eleventh, the lifting performance of auxiliary lifting machinery must meet the lifting requirements, safety devices must be complete and effective, sling must be safe and reliable, the site must meet the requirements of the operation.
12. After the hoisting machinery is installed and attached, self-inspection, inspection and acceptance shall be carried out in accordance with the provisions. It can be put into use after passing the acceptance.
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Safety points of hoisting machinery
The unit using hoisting machinery must establish the mechanical equipment management system, and provide full-time equipment management personnel.
2. Lifting machinery shall be registered for use after passing the installation and acceptance inspection, and obvious safety warning marks shall be set up within the scope of activities of machinery and equipment.
Lifting machinery drivers and signal operator must obtain operation qualification certificates for special operation personnel in construction.
IV. Safety technical disclosure shall be made to the operators before the use of hoisting machinery.
Five, hoisting machinery operators must strictly abide by the safety operation rules and standards of hoisting machinery requirements, strictly prohibit illegal command, illegal operation.
In case of strong wind, heavy fog, heavy rain, heavy snow and other bad weather, hoisting machinery shall not be used.
7. Lifting machinery shall be repaired, maintained and maintained in accordance with the provisions. Equipment management personnel shall inspect the machinery and equipment in accordance with the provisions and make rectification in time when hidden dangers are found.
8. Safety devices and connecting bolts of hoisting machinery must be complete and effective, structural parts shall not be welded or cracked, connectors shall not be seriously worn and plastic deformation, and parts and components shall not meet the standards of scrap.
9. When two or more tower cranes cross over in the same site, anti-collision measures of tower cranes shall be formulated. The minimum erection distance between any two tower cranes shall meet the requirements of the code.
Ten, tower crane use, lifting arm and under the lifting objects are strictly prohibited to stay. When lifting, it is strictly forbidden to pass above the personnel.
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Key points of foundation pit construction safety
1. Special construction plans must be prepared and reviewed in accordance with regulations for foundation pit projects, and experts shall be organized for demonstration of deep foundation pit projects exceeding a certain scale. The foundation pit support must be specially designed.
2. The foundation pit construction enterprise must have the corresponding qualification and safety production license. It is strictly prohibited to engage in the foundation pit construction without qualification or beyond the scope.
III. Safety technical disclosure shall be made to site managers and operators before foundation pit construction.
IV. The foundation pit construction shall be organized and implemented in strict accordance with the special construction plan, and the relevant management personnel shall supervise the construction on site. If the construction is not carried out in accordance with the special construction plan, immediate rectification shall be required.
5. Effective measures must be taken to protect the safety of the buildings and underground pipelines within the main affected area of the foundation pit.
VI. The load of construction materials, facilities or vehicles around the foundation pit shall not exceed the ground load limit required by the design.
7. Border protection measures shall be taken around the foundation pit as required, and special passageways shall be set up for workers to go up and down.
Eight, the foundation pit construction must take the foundation pit inside and outside the surface water and ground water control measures, to prevent water and sand leakage. During construction in flood season, the drainage system at the construction site shall be inspected and maintained to ensure smooth drainage.
Nine, the foundation pit construction must do the first support after the excavation, is strictly prohibited overdig, timely backfill. It is strictly prohibited to remove the support when the supporting structure adopted by the support does not meet the dismantling conditions.
10. Construction monitoring and third-party monitoring shall be carried out in accordance with regulations for foundation pit projects, and special personnel shall be designated to patrol the surrounding areas of the foundation pit, and the alarm shall be immediately given when danger signs appear.
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Safety key points of scaffold construction
First, the scaffold project must be prepared and reviewed in accordance with the provisions of the special construction plan, over a certain scale to organize experts to demonstrate.
2. The scaffold erection and dismantling unit must have the corresponding qualification and safety production license. It is strictly prohibited to engage in scaffold erection and dismantling without qualification.
Three, scaffold erection, dismantling personnel must obtain the construction of special operation personnel operation qualification certificate.
IV. Before erecting and dismantling the scaffold, safety technical disclosure shall be made to the site management personnel and operation personnel.
V. Scaffold materials must be inspected and accepted according to regulations before entering the site for use. Those without acceptance or unqualified acceptance are strictly prohibited to use.
VI. The erection and dismantling of scaffolding shall be organized and implemented in strict accordance with the special construction plan. The relevant management personnel shall supervise the construction on site.
Seven, the outside of the scaffold and the bottom of the cantilevered scaffold, attached lifting scaffold should be closed tightly.
Eight, the scaffold must be set according to the special construction program scissors support and wall parts. Floor - type scaffold erection site must be smooth and solid. It is strictly forbidden to overload the scaffold with materials, and it is strictly forbidden to fix the formwork support, cable wind rope, and conveying pipe used to pump concrete and mortar on the scaffold body.
9. Scaffold erection must be inspected and accepted by stages. If it passes the inspection, it can be put into use.
10. Scaffolding demolition must be carried out from top to bottom, and it is strictly prohibited to work at the same time. The wall parts shall be removed layer by layer with the scaffold. It is strictly prohibited to remove the whole or several layers of the wall parts before removing the scaffold.
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Safety key points of formwork support construction
First, the formwork support project must be prepared and reviewed in accordance with the provisions of the special construction plan, over a certain scale to organize experts to demonstrate.
2. The erection and dismantling unit of formwork support must have the corresponding qualification and safety production license. It is strictly prohibited to engage in erection and dismantling of formwork support without qualification.
The erection and dismantling personnel of formwork supports must obtain the operation qualification certificate of special operation personnel in construction.
IV. Safety technical disclosure shall be made to the site management personnel and operation personnel before erecting and dismantling the formwork support.
V. Formwork support materials must be accepted in accordance with regulations before entering the site for acceptance. Those without acceptance or unqualified acceptance are strictly prohibited to use.
VI. The erection and dismantling of formwork support shall be organized and implemented in strict accordance with the special construction plan. The relevant management personnel shall supervise the construction on site.
Seven, formwork support erection site must be smooth and solid. Must be set up according to the special construction program horizontal and horizontal rod, sweeping rod and scissors support; The height of the free end of the top of the vertical rod and the extension length of the supporting screw are strictly prohibited to exceed the requirements of the special construction scheme.
VIII. Formwork support shall be inspected and accepted after erection. Formwork can only be laid if it passes the inspection.
9. Concrete pouring must be carried out in accordance with the order specified in the special construction plan. Special personnel shall be designated to monitor the formwork support and shall immediately organize the operation personnel to evacuate the site when the collapse risk of the frame is found.
Ten, the concrete strength must meet the specification requirements, and the supervision unit confirmed before the removal of formwork support. Demolition of formwork support should be carried out layer by layer from top to bottom.
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