Active protection network construction technical requirements

During the construction of the SNS active protection network protection, firstly, the construction team is set up and dismantled to clean the slope surface of floating soil and dangerous rocks, and an integral construction platform is set up. Then the anchor construction team constructs the anchor bar from top to bottom, and two rows are to be constructed. After the anchor bolt, the SNS active protection net is used to install the protective net from top to bottom. After the construction of each layer is completed, the construction platform is dismantled by the construction and demolition construction team. The entire slope is constructed in sequence from top to bottom.

General layout principle of construction

(1) Combining the geographic location and construction features of the project, under the premise of meeting normal construction production, safe, reasonable, economical, clean and civilized layout of production and living sites.

(2) The production operation area is separated from the office and living area, and scientifically laid out to create a good production and living environment.

(3) Occupying as little or no land as possible, minimizing the damage to the ecological environment.

(4) The station satisfies the convenience of the basic traffic, and the production, living, and communication facilities are complete.

Technical safety requirements for A-hole construction 1. Technical requirements 1. Strictly follow the drilling position of the engineer's release line;

2. Before drilling, a hole with a depth of not less than the length of the exposed ring collar of the anchor should be chiseled at the position of the hole. The general diameter is 20cm and the depth is 15cm.

3. The active protection network adopts 1.0m, 2m, and 3m drill pipe constructions, and the slope protection network cannot use 3m drill pipes at a time, so as to prevent sticking and broken rods;

4. If the drilling site is located in a loose rock formation, engineers or supervisors must be notified to re-determine the location of the drill hole;

5. To ensure that the drilling depth of the active protection network reaches 3.2m and the drilling is completed, the hole cleaning must be performed.

Second, safety requirements 1, construction must be hard hats, seat belts.

2. It is forbidden to work under fatigue after drinking.

3, strictly in accordance with the mechanical operation procedures.

B perfusion technology construction of a <br> <br> safety requirements, technical requirements, must be cleared before filling hole, if gravel slag must be removed.

2. Check if the hole depth meets the design requirements (2m, 3m).

3, cement mortar in strict accordance with the 1:1 mix ratio of cement, the use of ordinary portland cement No. 425.

4. It requires that the perfusion be dense, and the perfusion be fixed at the edge.

5. Within three days after infusion, the next procedure is strictly prohibited and is not affected by external forces.

Second, the safety requirements 1, before the pull must review the date of injection, whether it reaches three days after the solidification period to ensure the mortar strength.

2. Strictly follow the tensile position specified by the supervision engineer.

3. Check if the tensioning device is in good condition.

4. The tensile strength must reach and the overload 2% prevails.

FEATURES:

  Light weight; good elasticity, weather resistance; long serving life.

PRESSURE REQUIRED:

I.D.

(inch/mm)

Working Pressure

(Bar  / Mpa  /  Psi)

Bursting Pressure

(Bar   /  Mpa    /  Psi)

1``

25

13 upto 25

1.3 upto 2.5

190upto365

39upto75

3.9upto7.5

570 upto1090

1-1/4``

32

8 upto 25

0.8 upto 2.5

120upto365

24upto75

2.4upto7.5

350 upto1090

1-1/2``

38

8 upto 25

0.8 upto 2.5

120upto365

24upto75

2.4upto7.5

350 upto1090

1-3/4``

45

8 upto 25

0.8 upto 2.5

120upto365

24upto75

2.4upto7.5

350 upto1090

2``

52

8 upto 25

0.8 upto 2.5

120upto365

24upto75

2.4upto7.5

350 upto1090

2-1/2``

64

8 upto 25

0.8 upto 2.5

120upto365

24upto75

2.4upto7.5

350 upto1090

2-3/4`

70

8 upto 25

0.8 upto 2.5

120upto365

24upto75

2.4upto7.5

350 upto1090

3``

75

8 upto 25

0.8 upto 2.5

120upto365

24upto75

2.4upto7.5

350 upto1090

4``

102

8 upto 16

0.8 upto 1.6

120upto235

24upto48

2.4upto7.5

350 upto700

5``

127

8 upto 13

0.8 upto 1.3

120upto190

24upto39

2.4upto3.9

350 upto570

 6``

152

8 upto 13

0.8 upto 1.3

120upto190

24upto39

2.4upto3.9

350 upto570

APPLICATIONS:

Fire-fighting; Shipping; petroleum; Chemical industry; Agriculture; Mining

Color available:white;red;yellow; or as per customer`s instruction

STANDARD:GB6246,EN14540,UNI9487; or as per customer`s instruction

 STANDARD LENGTH:10M up to 40M

 

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