01
Crane installation and disassembly operation safety points
First, the installation and disassembly of lifting appliances must be conducted in accordance with the provisions of the preparation, review of special construction programs, more than a certain size to organize experts to demonstrate.
2. The installation and disassembly units of lifting appliances must have corresponding qualifications and safety production licenses, and it is strictly forbidden to install and disassemble the lifting appliances without qualification and over-range.
Third, the installation and disassembly of lifting machinery, lifting machinery drivers, and signal cable operators must obtain qualification certificates for special operation personnel for construction.
4. Before installing or disassembling lifting machinery, installation and disassembly units shall go through the notice of installation and disassembly as required.
5. Prior to the installation and disassembly of lifting machinery, safety technical disclosure should be provided to site management personnel and workers.
6. The installation and disassembly of lifting machinery shall be organized and implemented in strict accordance with the special construction plan. The relevant management personnel must supervise on the spot. If it is found that the construction does not follow the special construction plan, it shall require immediate rectification.
7. Lifting and attachment of lifting appliances must be carried out by a qualified installation company in strict accordance with the special construction plan.
8. In case of bad weather such as strong wind, heavy fog, heavy rain, heavy snow, etc., installation, disassembly and lifting operations of lifting appliances are strictly prohibited.
9. Before the tower crane is lifted, the lower swing support and the jacking frame should be reliably connected and trimmed. During the lifting process, balance should be ensured and no operations such as lifting, swinging, or amplitude change can be performed. After the jacking is over, the standard section should be reliably connected with the lower swivel base.
Tenth, when the cranes are required to be attached after the joints are added, they shall be carried out in the order of attaching the attachment device first and then lifting the joints. Attachment devices must meet the requirements of the standard specification. During the demolition work, the section should be lowered first, and then the attachment device should be removed.
11. The lifting performance of the auxiliary lifting appliance must meet the hoisting requirements, the safety device must be complete and effective, the sling must be safe and reliable, and the site must meet the operational requirements.
12. After the crane has been installed and attached, it shall be self-inspected, inspected and accepted as required. It shall be put into service only after acceptance.
02
Lifting appliances use safety points
First, the use of crane machinery must establish a mechanical equipment management system, and equipped with full-time equipment management personnel.
2. After the hoisting machinery has passed the acceptance check, it shall go through the use registration and set up clear safety warning signs within the scope of machinery and equipment activities.
Third, the crane driver and the signal operator must obtain qualification certificates for special operation personnel for construction.
4. Prior to the use of lifting appliances, safety technicians shall be provided with information.
5. Lifting machinery operators must strictly abide by the safety operation regulations and standards and requirements of cranes, and strictly prohibit unauthorized operation and operation.
6. In the event of bad weather such as strong winds, heavy fog, heavy rain, heavy snow, etc., lifting machinery shall not be used.
VII. Lifting machinery shall be repaired, maintained and maintained in accordance with the regulations. The equipment management personnel shall inspect the machinery and equipment according to the regulations and discover hidden problems in a timely manner.
8. The safety devices and connecting bolts of lifting appliances must be complete and effective. The structural parts must not be welded or cracked. The joints must not be severely worn and plastically deformed. Parts must not reach the standard for scrapping.
9. When two or more tower cranes cross over at the same site, they shall formulate tower crane anti-collision measures. The minimum erection distance between any two tower cranes should meet the specification requirements.
10. When tower cranes are used, no personnel are allowed to stay under the jibs and hanging objects. When objects are lifted, it is forbidden to pass over personnel.
03
Foundation pit construction safety points
First, the foundation pit project must be prepared in accordance with the provisions of the special construction plans, and verification, more than a certain size of the deep pit project to organize expert demonstration. Foundation pit support must be specially designed.
2. Foundation pit construction companies must have corresponding qualifications and safety production licenses, and it is strictly forbidden to engage in the construction of foundation pits without qualification or in any scope.
3. Before the construction of foundation pits, safety technical disclosure shall be made to the on-site management personnel and operating personnel.
4. The foundation pit construction shall be organized and implemented strictly in accordance with the special construction plan. The relevant management personnel must supervise the site and if they find that the construction is not in accordance with the special construction plan, they shall require immediate rectification.
V. Foundation pit construction must take effective measures to protect the safety of buildings (structures) and underground pipelines within the main impact zone of the foundation pit.
6. The construction materials, facilities or vehicle loads surrounding the foundation pit shall not exceed the ground load limit specified in the design.
7. Protective measures shall be taken around the perimeter of the foundation pit as required, and special channels for workers shall be set up and down.
8. Foundation pit construction and underground water surface and groundwater control measures must be taken to prevent pit water and leakage. In the flood season construction, the drainage system on the construction site shall be inspected and maintained to ensure smooth drainage.
Nine, the foundation pit construction must be excavated after the first support, is strictly prohibited over-excavation, timely backfilling. When the support structure used for support does not reach the demolition conditions, the support must not be dismantled.
X. The foundation pit project must implement construction monitoring and third-party monitoring in accordance with regulations, and appointing someone to inspect the perimeter of the pit, and immediately report an alarm when danger signs appear.
04
Scaffolding construction safety points
First, the scaffolding project must be prepared in accordance with the provisions of the review of special construction programs, more than a certain size to organize expert demonstration.
2. Scaffolding erection and dismantlement units must have corresponding qualifications and safety production licenses, and it is strictly forbidden to engage in erection or demolition of scaffolding without qualification.
3. Scaffolding erection and dismantling personnel must obtain qualification certificates for operation of special operators for building construction.
4. Before scaffolding is erected or dismantled, safety technicians shall be provided with on-site management personnel and workers.
5. Before scaffolding materials are put into use, they must be checked and accepted according to regulations. No acceptance or unqualified acceptance is strictly prohibited.
6. Scaffold erection and demolition shall be implemented in strict accordance with the special construction plan. The relevant management personnel must supervise on the spot and if they find that the construction is not in accordance with the special construction plan, they shall require immediate rectification.
7. The outer side of the scaffolding and the cantilevered scaffolding and the bottom of the attached lifting scaffolding should be closed tightly.
VIII. Scaffolding must be set up according to a special construction plan for scissor support and wall attachment. Floor scaffolding erection site must be flat and solid. It is forbidden to overload the stacking material on the scaffold, and it is forbidden to fix the template support, the cable wind rope, the pumping concrete and the mortar conveying pipe to the frame body.
Nine, scaffolding erection must be phased inspection and acceptance, qualified acceptance before they can be put into use.
10. Scaffolding must be dismantled from top to bottom layer by layer. It is forbidden to work from top to bottom. Walls should be removed with the scaffolding layer by layer. It is strictly forbidden to remove the scaffolding after removing the entire wall or layers.
05
Template bracket construction safety points
1. The formwork support project must be compiled and reviewed in accordance with the provisions of the special construction plan. Experts who exceed a certain scale must organize expert demonstrations.
2. The erection and dismantling units of the formwork support must have corresponding qualifications and safety production licenses. It is strictly forbidden to install and dismantle the formwork support without qualification.
Third, the erection and dismantling personnel of the formwork support must obtain qualification certificates for special operation personnel for building construction.
4. Prior to the erection and demolition of formwork brackets, safety technicians shall be provided with on-site management personnel and operating personnel.
5. Before the acceptance of the formwork scaffolding material, it must be inspected according to the regulations. It is forbidden to use without acceptance or acceptance.
6. The erection and dismantling of formwork brackets shall be organized and implemented strictly in accordance with the special construction plan. The relevant management personnel must supervise on the spot and if they find that they do not follow the special construction plan, they shall require immediate rectification.
Seventh, the template scaffold erection site must be smooth and solid. Vertical and horizontal rods, sweeping rods, and scissor support must be set according to the special construction plan; the height of the free end of the top of the pole and the protruding length of the jack screw must not exceed the requirements of the special construction plan.
VIII. After the template bracket is erected, it shall be organized and checked. Acceptance of the template bracket may be used to lay the template.
9. When pouring concrete, it must be carried out in the order specified in the special construction plan. Special persons should be designated to monitor the formwork support. If it is found that there is a risk of collapsing in the stand, the operator should be immediately evacuated from the site.
Tenth, concrete strength must meet the specification requirements, and confirmed by the supervision unit can remove the template bracket. The removal of the formwork brackets should be done layer by layer from top to bottom.