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Construction Site Management and Civilized Construction (4)

8 Five cards, one map and two columns and one newspaper

There should be a neat and obvious "five cards and one map" at the entrance of the construction site, and "two columns and one newspaper" should be set up in the office area and living area.

(1) Five cards refer to: project overview card, management personnel list and supervision telephone card, fire protection card, safety production card and civilized construction card; One map refers to the general plan of the construction site.

(2) Other brand maps, such as engineering renderings, can also be added in each region according to the situation. The specific contents of the five cards are not specified, but can be set according to the characteristics of the region, the enterprise and the project. Generally, the project name, area, number of floors, construction unit, design unit, construction unit, supervision unit, opening and completion date, project manager and contact telephone number should be indicated on the project profile card.

(3) Signs are one of the important signs on the construction site, so not only the contents should be targeted, but also the sign production and hanging facilities should be standardized, neat and beautiful, with neat fonts.

(4) In order to further publicize the safety of employees, it is required that the construction site should have necessary safety slogans in obvious places.

(5) The construction site should set up "two columns and one newspaper", that is, reading newspaper columns, publicity columns and blackboard newspapers to enrich the learning content and praise good deeds.

9 layout and hanging of warning signs

Safety signs should be set and hung on the construction site according to the engineering characteristics and different stages of construction.

9.1 definition of safety signs

safety warning signs refer to various signs, characters, symbols and lights that remind people to pay attention. Generally speaking, safety warning signs include safety colors and safety signs. Safety warning signs should be obvious and easy for operators to identify. If it is a light sign, it should be bright and conspicuous; If it is a graphic symbol, it should be clear and easy to understand.

according to the regulation of (safety color) 2893-82, safety color is the color that expresses the meaning of safety information, and it is divided into four colors: red, yellow, blue and green, which respectively indicate prohibition, warning, instruction and prompt.

according to (safety signs) CD 2894-%,safety signs are signs used to express specific information, which are composed of graphic symbols, safety colors, geometric figures (borders) or characters. Safety signs are divided into prohibition signs, warning signs, instruction signs and prompt signs. The graphics, size, color, text description and production materials of safety warning signs shall conform to the national standards.

9.2 Significance of setting up hanging safety signs

There are many types of construction machinery, machines and tools, high-altitude and cross-operation, temporary facilities, unsafe factors and complex working environment on the construction site, which are workplaces with large risk factors and are easy to cause personal injuries and deaths. Safety warning signs are set on dangerous parts of the construction site and relevant equipment and facilities, which is to remind and warn managers, operators and relevant personnel entering the construction site to always realize the danger of the environment, stay awake and alert at any time, and avoid accidents.

9.3 safety sign layout

the construction unit shall determine the dangerous parts and set up safety signs in a targeted manner according to the scale of the project, the environment of the construction site, the structural form of the project and the location of equipment and machines. The construction site should draw the general layout plan of safety signs, and organize personnel to set, hang or increase or decrease them according to the construction characteristics of different stages of construction.

The plan of the safety sign setting position is one of the important information in the safety work. When a picture cannot be shown, it can be shown or drawn in layers. The plan of the location of safety signs shall be signed by the draftsman and approved by the project leader.

9.4 setting and hanging of safety signs

according to the relevant regulations of the state, the population area, construction hoisting machinery, temporary electricity facilities, scaffolding, exits, stairs, elevator wellheads, hole openings, bridge openings, tunnel openings, foundation pit edges, places where explosives, harmful and dangerous gases and liquids are stored belong to dangerous areas, and obvious safety warning signs should be set. The type and quantity of safety warning signs shall be set with different safety warning signs according to the nature of dangerous parts. For example, no fireworks, no smoking, etc. are set up in the storage places of explosives, harmful and dangerous gases and liquids; Warning signs such as electric shock, heart injury and hand injury shall be set beside construction machines; In the population area of the construction site, instruction signs such as helmets must be worn; Set the indicating signs such as safe passage at the opening of the passage; In the ditches, ridges and deep pits on the construction site, red lights should be set up at night to warn people.

statistical records shall be made after the safety signs are set, and the registration form of safety signs on the construction site shall be filled in.

1. Setting of tower crane

1.1 Determination principle of position

The position of tower crane should first meet the needs of installation, and at the same time, the position of concrete mixing station and yard, and the layout of water and electricity pipelines should be fully considered. The location of the fixed tower crane should be determined according to the mechanical properties, the plane shape and size of the building, the division of construction sections, the construction site conditions around the building and the hoisting technology, etc. Generally, it should be close to the roadside to reduce the horizontal traffic. The track layout of rail tower crane mainly depends on the plane shape and size of the building and the surrounding construction site conditions. Track layout is usually arranged along one side or both sides of the building.

1.2 Safety precautions that should be paid attention to

(1) The distance between the tower rail center of the track tower crane and the external wall of the building should take into account factors such as the protruding part of the building, scaffolding, safety and safety space, and should generally be no less than 3.5m;;

(2) The proposed building is close to the street, and the tower arm may cover the sidewalk. If the site conditions permit, the tower rail should be arranged on the inside of the building as far as possible:

(3) A protective frame should be erected for the high-voltage line near the tower crane, and the rotation angle should be limited to prevent accidents caused by tower crane operation;

(4) When arranging multiple lifting equipment in a site, it should be able to ensure the safety of cross operation, rotate up and down and left and right, and leave a certain space to ensure safety;

(5) The rail foundation of the rail tower crane and the base foundation of the fixed tower crane must be solid and reliable, and drainage measures should be set around to prevent water accumulation;

(6) When arranging the tower crane, the site required for installation and removal should be considered;

(7) The construction site should set aside the access road for cranes.