1 Before the demolition construction, the current situation of the demolition object should be investigated in detail and the demolition plan should be formulated. Construction can only be started after it is approved by the chief engineer of the management department (if there is any difficulty, it should be approved by the chief engineer of the technical department). For simple demolition projects, practical safety measures should also be formulated; During the operation, a special person shall be assigned for supervision, a security cordon shall be set, and lighting and warning signals shall be set to prevent non-construction personnel from entering the demolition site. 2 Before demolition, the person in charge of the management department shall organize technicians and operation teams to learn measures and safety operation procedures. 3. During the demolition operation, the operation monitor should monitor the whole process and immediately stop the illegal behavior. 4 Before demolition, materials, mechanical equipment, wires and cables that may be affected by wires, geomantic pipes and equipment should be moved, and the power supply on the demolished object should be cut off and the power cord unplugged. 5 workers engaged in demolition work, should stand on scaffolding or other stable structural parts, workers should correctly use personal protective equipment. During the demolition operation, do not stand on the demolished object or hang safety protection articles on it. 6 demolition, should be carried out in order from top to bottom, it is forbidden to dismantle several layers at the same time. When a certain part is demolished, reinforcement measures should be taken to prevent other parts from collapsing. Demolition sequence shall be based on the principle of building first and then demolition, and building first and then demolition. 7 The removal of protective railings, passages and safety protection facilities shall conform to the overall removal degree, and cannot be removed first. Load-bearing columns and beams can only be removed after all the structures they bear are removed. 8 Demolition method shall not be used. 9 Blasting demolition shall be carried out in accordance with relevant blasting regulations. After blasting, if there are signs of danger in the reserved part, safety measures should be taken before work can be carried out. When 10 is dismantled, no one shall gather and pile materials on the bent or platform to avoid danger. 1 1 When demolition work is carried out at a high place, a downward-pulling exile chute (chute) or bagging (box) shall be set up to make scattered wastes flow down the chute. Remove large or overweight materials, use lifting ropes or lifting machinery to lift or transport them away in time, and it is forbidden to throw them down. Remove all kinds of materials in time, and pile them in the designated place respectively to keep the site unobstructed. 12 when dismantling the formwork, it must be fastened with ropes, and the dismantling operation can only be carried out after the crane is hoisted stably. During the lifting process, auxiliary ropes should be used to control the hoisted object to be in a normal state. 13 Warning lights should be hung at night, warning lines should be set below, lighting should be done well, and command signals should be clear. 14 when the wind is strong, stop the operation, and then stop after the demolition. 15 Dismantle the auxiliary activity facilities, pendants and guardrails first, and then dismantle the main part. 16 steel structure demolition shall be carried out according to the mechanical equipment and hoisting scheme selected by the construction organization design. Don't overload the operation. 17 The crane driver who dismantles and lifts the crane must strictly follow the operation procedures. The signal commander must work according to regulations, and the command signal is clear. Crane drivers are not allowed to obey other people's orders unless in an emergency. 18 demolition of construction support 18. 1 demolition of sprayed concrete shall be carried out from top to bottom and in stages. When working high above the ground, scaffolding and safety nets must be erected, and safety ropes and helmets must be worn. 18.2 when removing sprayed concrete with picks, they should work side by side, with the left-right spacing not less than 2m. You should not choose face to face. 18.3 When the sledgehammer hits the shotcrete, no one is allowed to stand or pass. Hammer steel, so that the hammer should stand on the side of the helper, so that the hammer does not wear gloves, and the end of the hammer handle should have anti-slip measures. 18.4 when using pneumatic tools to chisel and spray concrete, the following regulations shall be observed: 18.4. 1 The pipe joints of all parts must be fastened, and there shall be no air leakage. The rubber hose shall not be twisted and knotted, the air duct shall not be bent for death, and the air duct shall not be placed under the legs; 18.4.2 when the air duct passes through the corridor, it must be erected high to prevent vehicles from running over it; 18.4.3 after the air duct is connected to the airbag, try to send air and check whether there is any sundries in the air duct. When pumping air, unscrew the valve slowly, and don't slam it open; 18.4.4 air compressor operators should work closely with air compressor drivers to deliver air or hold their breath in time; 18.4.5 after the drill bit is inserted into the pneumatic tool, it shall not be emptied. 18.5 during the operation, there should be a special person under unified command, and no one is allowed within the operation scope. 18.6 the dismantled platform shall be covered with scaffolding and measures to prevent debris from falling from the gap. 18.7 The bent frame for demolition shall be firm and specially designed and accepted. In the process, the monitor will check once per shift, and the big stones will be inspected after vibration, and then used after the hidden dangers are eliminated. 18.8 Demolition shall not be centralized. One person is monitoring the deformation of surrounding rock nearby, and evacuate in time if any abnormality is found. 18.9 The demolition platform should adopt flexible bamboo springboard, with two or more layers of wood blocks with large cracks, and car tires should be placed under the wood blocks to reduce vibration. 18. 10 Dismantle large unstable blocks, and first use active protective nets for protection, and then carry out operations after the protective nets are firmly fixed with the surrounding and protective areas; Measures should be taken to divide large blocks into small blocks and gradually dismantle them. 19 When dismantling, strictly follow the top-down operation procedures, and do not cross vertically, so as to clear it step by step, and no objects shall be left behind when dismantling. For dangerous structures or equipment, temporary reinforcement measures such as pillars, supports and ropes must be adopted. When cutting steel structure by gas welding, the operator should choose a safe place, and the cut must be tied with ropes and hooks. 2 1 The bent frame for demolition shall be protected against edges and holes. After the acceptance, the production management department will organize the acceptance, with the participation of safety, quality and technology departments, and it will be used after the acceptance. Before the operation, the monitor should organize the participants to have a pre-class meeting, and all the participants should feel comfortable, understand the work tasks and potential safety hazards, and work under supervision after eliminating the hidden dangers in time.
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