Road construction safety knowledge

Road construction safety is very important, and safety work must be done before construction can begin. Here are some road construction safety knowledge I have compiled for your reference.

road construction safety knowledge 1. construction preparation

before construction, the site should be carried out? Three links and one leveling? Handle. If you want to build a temporary service road, you must ensure the safety of traffic and pedestrians. And there are clear signs and traffic control measures. Understand the temporary water and electricity use in the construction site by investigation and draw a sketch. Carry out safety education on water and electricity use for all construction personnel, and strictly abide by the system of holding certificates for special staff.

before construction, the pipelines buried in the ground shall be marked with obvious signs, and the construction personnel shall be given a detailed disclosure. When the excavation passes through dangerous buildings such as cracked walls and skewed chimneys, it must be supported and reinforced in advance. Set protective fences for leveling points and poles, and formulate feasible safety construction schemes for sections that are prone to collapse in rainy season.

safety signs, dangers, warnings, symbols and slogans stipulated by the state are hung in the construction area to warn people about the scope of protection and dangerous areas.

road construction safety knowledge ii. subgrade construction safety

before subgrade construction, strict construction organization design should be made, strict construction specifications and safety technical operation procedures should be formulated, on-site command and dispatch personnel should be implemented, safety technical disclosure should be made to all construction personnel, safety protection facilities on the construction site should be arranged, and necessary safety protection articles for construction personnel should be equipped. Only when everything is ready can subgrade construction be started.

during subgrade construction, a special person must be set up in the construction area for traffic management, and unified command should be given to personnel, vehicles and machinery. In order to avoid personal and mechanical accidents. When the excavator is in construction, a certain construction site must be guaranteed, and personnel are not allowed to enter the radius of gyration. The earth-moving truck must be commanded by a special person when entering the construction site to ensure safety. No pedestrians are allowed to pass through the construction site. When piling up soil, there must be necessary sidewalks in the soil piling area, and try to avoid piling up soil against the wall. When piling up soil, the height must not exceed 1 meter, and a good drainage ditch is provided. During the rolling construction, ensure that the edge of the roller is kept at a safe distance to prevent unsafe accidents during rolling. When using electric rammer, the rope should be strong and reliable to prevent foot pressing from hurting people. The rammer wire must be well insulated, and the starting and braking switches should be sensitive and safe. When people and machines cooperate in construction, there is a certain safe distance between them. During subgrade construction, there should be a special safety officer to manage the construction safety at the site.

road construction safety knowledge iii. construction safety of base course and surface course

during concrete construction of base course, attention should be paid to prevent environmental pollution and affect residents' physical and mental health, and fences should be set up when necessary. No one is allowed to stand around the machine. To ensure that the machine can move forward and backward freely, there must be a special person at the scene to prevent personal injury or death. During paving construction, construction personnel should pay attention to avoid construction machinery in time and obey the on-site command. After the construction, the site must be cleaned up, and the remaining materials shall not be dumped on the side of the road, which will affect the safety of pedestrians.

before the surface construction, the traffic in the construction area must be closed with wooden horses and barrier ropes, and obvious warning signs such as red flag or red light should be set on the barrier, and special personnel should be assigned to watch the traffic. Before construction, we should also carefully check the completeness of machines and tools and equipment, and do a good job of warranty. In the process of concrete pavement construction, attention should be paid to inspection at any time, the safety of transport vehicles and electricity consumption. Traffic management must be carried out when passing vehicles are crushed, and attention should be paid to avoiding passing vehicles at any time. Pay special attention to the following construction safety: when installing formwork, all kinds of materials should be neatly stacked to prevent foot mixing and puncture. When installing, the template elevation should be accurate, and when adjusting the template elevation, fingers should be prevented from being squeezed. Before concrete mixing, check whether the transmission part, clutch and brake of the mixer are flexible and reliable, and whether the wire rope is broken or damaged. The connecting screws of each part of the mixer should be firm, and the transmission part should have a protective cover. The motor is well wired. When the mixer is rotating, hands or tools are not allowed to reach into the mixing drum. When the mixer breaks down, the power supply should be cut off immediately for repair. When the mixer lifts the hopper to pour materials, the personnel are not allowed to clean the waste under the hopper to prevent accidents. When the mixer stops for more than 1H, the leftover materials in the mixing drum should be cleaned up. When paving and vibrating concrete, first check whether the vibrator circuit is in good condition to prevent leakage and open circuit, which may cause accidents. During the vibrating construction, there should be a special person to pull the flexible cord and move forward with the vibrator at the same time, so as to prevent electric shock accidents caused by twisting and pressing wires during the vibrating construction.

after the cement concrete pavement is poured, it should be maintained for a certain period of time. During the curing period, heavy vehicles or vehicles with strong vibration should be prohibited from passing.

road construction safety knowledge iv. construction safety of ancillary structures

during precast masonry construction:

when transporting precast blocks, first check whether there are cracks in the precast blocks to prevent sudden fracture and personal injury during transportation. When handling, two people should carry each other and pile up neatly and smoothly. During the handling, the two people coordinated to prevent crushing their hands and feet. When installing, hold it steady and move it carefully. After the erection, pedestrians and vehicles are prohibited from colliding during the curing period.

During well construction:

Workers must wear safety helmets correctly. Bricks and stones are transported downwards by chute or lifting. When lifting, the rope must be strong and tied firmly, and the upper and lower workers should cooperate with each other. When the build-by-laying well exceeds 1.2 meters, scaffolding or simple shelves must be erected. When laying, bricks, stones and tools should be prevented from falling and hurting people.