Sell Prestressed hollow anchor bolt By Luoyang Gongyan Technology Co., Ltd, China
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Sell Prestressed hollow anchor bolt

Sell Prestressed hollow anchor bolt

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Minimum Order

Localité:

China

Prix de commande minimale:

-

Commande minimale:

-

Packaging Detail:

-

Delivery Time:

3 weeks

Supplying Ability:

-

Payment Type:

T/T, L/C

Contacter maintenant
Membre gratuit

Personne à contacter Mr. Alex

Wangchen road ,Luolong district ,, Luoyang, Henan

Contacter maintenant

Description

Prestressed hollow anchor bolt consists of steel shell-expansion anchor head, hollow anchor rod, grouting stopper, arch plate and nut. Coupling and grouting block are optional. It is designed for hard rock at fractured zone with growing joints which may cause loosing of fractured rock and reducing of friction between rocks, resulting in loosing of surrounding rocks in larger area. Applying enough pre-stress would keep its stability.
Construction method:
1)  drill the hole and clean
2)  insert the anchor bolt to the hole bottom
3)  pre-stress the anchor rod and assure the anchor head contacting closely with hole bottom, then rotates the anchor rod until it is fastened, and install stopper, plate and nut;
4)  apply pre-stress to the designed value,use the stretching gauge of anchor bolt or spanner;
5)  Connect of grouting joints to grout
Specification:
specification
GY*5
GY*8
GY*2
external diameter(mm)
*5
*8
*2
Breaking load(KN) 
≥******0
≥******0
≥******0
Interior diameter(mm)
≥*5
≥*7
≥*2
drilling diameter(mm)
*2
*2
*1
threadtype
               left hand
standard length(m)
1.0/1.5/2.0/2.5/3.0/3.5/4.0/4.5/5.0/6.0
lengthtolerance
±2.5ï¼…                                                                                                       
 
 
 
 
 
 
 
 
 
 
 
 
 

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To:

Mr. Alex < Luoyang Gongyan Technology Co., Ltd >

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