Patio tunneling safety management system

First   Patio tunneling must comply with the following regulations:

1,    When using the hanging workbench and the cross-support workbench, it must be firm and stable, and covered with a cover.

2,    A safety shed must be provided when the work surface is 6 meters away.

3,    When the height of the excavation exceeds 7 meters, facilities such as ladder rooms and rafters should be installed.

4,    Before the patio is connected to the upper flat road, no work is allowed in it.

5,    When the tunnel is drilled 7 meters from the upper middle section, the surveyor must measure the through position and the upper part should be protected or fenced.

6,    Anyone who goes to work on the patio must have a "man-made" warning sign on the lower part and remove it in time. When the working surface of the patio is occupied, the following personnel must contact the above personnel when they need to go up.

          Second   Patio digging must have good ventilation and use electric resistance wire to detonate. The ore between the scorpions should not be emptied. Generally, two-thirds of the ore height should be maintained.

          Article 3   Above the safety shed, ladders or large ropes must be hung, and work platforms and sidewalks, slabs and stones should be cleaned up in time.

Material

Carbon Steel like A234 WPB, 20G, A105, Q235A/B and alloy steel like ASTM A234 WP5, WP11, WP12

Executive Standard

ASME B 16.9, DIN, JIS, BS, etc

Size

1/2"-24"

Wall Thickness

SCH10~SCH160, STD, XS, XXS

Type

Seamless

Welding Method

Butt Welding

Surface Treatment

grit blasting, black or transparent painting or according to the requirement of client

Cross Fittings

Stainless Steel Cross, Carbon Steel Cross, Alloy Steel Cross, Reducer Steel Cross, Equal Steel Cross

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