Safety risk identification and pre control measure

Safety risk identification and pre control measures for excavation foundation operation

1 Reasonably place staff, strengthen communication and supervision between them, and equip reliable communication tools

2. When the road is slippery or there is no road, you should walk slowly and carefully. When passing through ditches, cliffs, pits, walls and streams, you should adopt protective measures

1 Work at heights with certificates, and use safety ropes or fall prevention assemblies as required

2. When binding reinforcement in high places or deep pits, shelves shall be erected. When there is no safe way at high places, it is strictly forbidden to stop the straightening task of thick steel bars and the thickness of such films can also be reduced by stretching

3. When installing formwork at heights, it is necessary to follow the relevant regulations of high altitude work, and do a good job in fall prevention measures

when cutting trees and bamboos on the channel, it is necessary to control the target of dumping. When cutting trees, it is necessary to use safety belts, and it is not allowed to climb fragile and dead branches or trees that have been cut but have not been broken

1 Before earth rock excavation, the surrounding environment, terrain and landform shall be familiar, and the construction scheme and safety measures shall be formulated for special terrain

2. When excavating the foundation pit manually, the pumice around the pit mouth should be broken before it becomes irreplaceable material; When throwing earth and stone outside the pit, prevent the earth and stone from falling back and injuring people

3. The 0.8m friction and wear testing machine at the edge of the pit is a kind of wear testing machine. Materials and things shall not be stacked within 0.8m

1 Before earth rock excavation, the surrounding environment, terrain and landform shall be familiar, and the construction scheme and safety measures shall be formulated for special terrain

2. When excavating in places with underground measures such as cables, optical cables and pipelines, the consent of the relevant handling department should be obtained in advance, and the site should have recent signs and safety measures

for the excavation of muddy water pit and quicksand pit, retaining plate or other construction methods to prevent collapse shall be adopted. When special construction methods are adopted (such as blasting method, etc.), the technology department shall put forward the safe construction method, and the front can be stopped after approval.

when transporting soil outside the foundation pit, steps shall be dug on the slope with a width of not less than 0.7m, It is strictly forbidden to operate the retaining bracket to lay down the soil transfer things or stand on the support to inform

strictly follow the speed limit mark of the highway; Prevent drunk driving; Follow the traffic rules, drive in a civilized and polite manner; Driving the vehicle of the unit must have a driver's license and an external driving permit

before transportation, stop inquiring and visiting on the road, deal with the road that needs reinforcement and renovation in time, and disclose to the escort staff and drivers before leaving the vehicle

1 Stop checking and protecting the vehicles on schedule. The driving staff must stop checking the vehicles before leaving the vehicle to ensure that the vehicle is in good condition

2. Send the vehicle to the public security and relevant departments for inspection as required

3. It is strictly forbidden to drive with defects

1 Stop inquiring and visiting the transportation route before transportation, and the obstacles on the transportation route must be cut off in advance

2. When lifting and transporting bulky objects in mountainous areas, stop trimming the road, ensure that its width is not less than 1.2m, and the slope is not too large than 1:4

1 Select the beam with appropriate strength requirements, reasonably select the erection method, and try to differentiate the weak point of the beam

2. The construction platform of erection measures shall be stable, and the connection of the platform components shall be stable. The support of the steel formwork erection of the device shall have sufficient supporting area, and the device shall stop from bottom to length. After the formwork is in place, it shall be connected firmly in time. When using diagonal bracing, the angle shall not be less than 60

the support of the steel formwork erection of the device shall have sufficient supporting area, and the device shall stop from bottom to length. After the formwork is in place, it shall be connected firmly in time. When diagonal bracing is used, the angle shall not be less than 60

1 When the mixer is running, it is strictly forbidden to stretch things into the drum to scrape materials. When the hopper is raised, no one is allowed under the hopper

2. Foreign matters shall not be inserted into the transmission part during operation, and parking and inspection shall be carried out in time in case of problems.

when transporting soil outward from the foundation pit, a step shall be dug on the slope with a width of not less than 0.7m. It is strictly forbidden to operate the retaining support to lay down the soil transfer things or stand on the support to inform

1 In order to prevent the vibrator from discharging electricity, professional staff should stop checking the vibrator thoroughly before work

2. The electric vibrator uses four core rubber flexible wire with excellent insulation and should be grounded

1 The switch side of the vibrator should be equipped with a discharge protector. The electric vibrator should wear rubber shoes, and wet hands should not touch the switch

2. When moving and transferring the vibrator or temporarily resuming the task, the power supply of the vibrator should be cut off

follow the formwork removal method: the formwork removal should be stopped from top to bottom, and the later supported ones should be removed first, the first supported ones should be removed, the non bearing parts should be removed first, and the bearing parts should be removed later