Installation technology and safety measures sharing of an aluminum-magnesium-manganese aluminum plate project

First, the first installation technology:

In the Al-Mg-Mn aluminum plate project, the installation of steam barrier, Z-purlin, glass insulation cotton and waterproof ventilation layer are as follows:

(1) gas barrier laying. 38 veneer is a fine glass wool roll felt. Before laying thermal insulation cotton, the W38 veneer vapor barrier is laid perpendicular to the roof direction to prevent water vapor from entering the thermal insulation layer, so as to achieve the functions of thermal insulation, moisture prevention and vapor isolation.

(3) Installation of Z-shaped purlin. After W38 veneering is completed, install Z-shaped purlins on the upper part of the main sandalwood, and fix them to the C-shaped steel of the main purlins by self-tapping nails, with the self-tapping nail spacing s ≤ 250 mm..

(4) the shop is stuck glass insulation cotton. On the Z-shaped purlin, spread the glass thermal insulation cotton in the direction perpendicular to the purlin, then fix the cotton felt on the purlin with a fixed seat, add a thermal insulation gasket between the fixed seat and the Z-shaped purlin, and lay the thermal insulation cotton in a staggered way to prevent the transmission speed of indoor and outdoor temperature difference and reduce the "cold bridge" effect. When the upper thermal insulation cotton felt is laid, a small opening is made in advance at the position of the roof fixing seat, and then the fixing seat is inserted. Thermal insulation cotton is compressed as a whole due to coiling, and the thickness measurement is carried out after uncoiling and beating or after the overall rebound for more than 4 hours after coiling. In order to ensure that the laying of glass fiber insulation cotton is not affected by the weather. Thermal insulation cotton is closely combined with the construction progress of aluminum magnesium manganese aluminum plate to avoid the damage of sudden bad weather to thermal insulation cotton. During construction, protective measures shall be taken to strengthen the protection of the fixed seat and steel wire mesh installed in the previous procedure.

(5) Laying a ventilated waterproof layer. A layer of waterproof cloth with ventilation layer is laid on the upper part of glass insulation cotton, which mainly prevents external water and air flow from infiltrating into the insulation layer, and at the same time can discharge internal moisture to the outside, with waterproof, ventilation and windproof functions.

Second, the safety control measures:

(1) There are important traffic building equipment such as communication signal optical cable and passenger passage in the falling area of aluminum magnesium manganese aluminum roof construction of a station, and good measures must be implemented for this roof reconstruction construction. Avoid damage to driving facilities, reduce the interference to passengers' boarding and landing, and ensure safety without accidents.

(2) The project belongs to the construction category near the business line. Before the construction, safety agreements were signed with the units such as train service, public works, electricity service, power supply, etc. For this purpose, during the construction period, station liaison officers and site protectors were set up in accordance with the regulations, and they held walkie-talkies for contact.

(3) During the construction, temporary storage points were set up in the bicycle shed yard of the station, and the management system of the construction passage was formulated. There is one guard at the entrance and exit of the construction passage, and the key of the gate is kept by a special person. It is forbidden for non-construction materials, machines and personnel to enter the station.

(4) During the construction on the side of a platform, personnel, mechanical tools, materials and construction waste are not allowed to invade the building clearance of the railway.

(5) Set up a safety warning sign at the entrance and exit of the tunnel "No entry for idle people", assign special personnel to guard during the construction period, and hand over the key to the station management personnel after the construction of the aluminum magnesium manganese aluminum plate project.

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