Main Components and Characters of Active Protection System

The common collocation and functions of Active Protection System
(Conform to the railway industrial standards: TB/T 3089—2004)

Model

Mesh Type

Structure Collocation

The Main Protection Function

GAR1(Common Simple Type)

Steel Wire Rope netting

Edge wire rope anchor pile + suturing rope (D0/08/300 steel rope netting + vertical anchor fixing + lateral supporting rope )

Enclose and protect the slope, restrict the   movement scope of  the stones ,partially restrain collapse

GAR2 (Common Type )

Steel Wire Rope Netting

System rope anchor pile + supporting rope + suturing rope ,orifice pits + stretching[edge anchor fixing (steel rope anchor pole 2-4m,spacing 4.5m )+ crossed supporting rope (2-∮16) + wire rope netting (◇08/300/4*4㎡) + suturing rope(∮8)]

Reinforce slope ,restrain collapse and weathering ,restrict the movement scope of partial rockfall

GPS1(General Common Type )

Wire Rope Netting +Steel Wire Grille

The same as GAR1 + Steel wire grille (GAR1+SO/2.2/50 iron grille)

The same as GAR1 ,the best choise when existing small rockfalls

GPS2 (General Common Type )

Wire Rope Netting +Steel Wire Grille

The same as GAR2 + Iron wire grille [or edge anchor fixing (steel rope anchor pile 2-4m ,spacing 4.5m )+ crossed supporting rope (2-∮16) + wire rope netting (◇08/300/4*4㎡) + suturing rope(∮8)+ SO/2.2/50 iron grille + system anchor fixing]

The same as GAR2,the best choice when exsting small rockfalls or soil slope .

GER1

Steel Wire Grille

The same as GAR1 ,but use iron wire to suture (SO/2.2/50 iron grille ,vertical anchor fixing and supporting rope )

The same as GAR1 ,the best choice when the rockfall cubage is small and needed rather shorter life mainly protecting gravel

GER2

Steel Wire Grille

GER2Steel Wire Grille The same as GAR2 ,but use iron wire to suture (SO/2.2/50 iron grille, vertical anchor and supporting rope )

The same as GAR2 ,the best choice when the rockfall cubage is small and needed rather shorter life

GTC-65A

High Strength Steel Wire Grille

prestressing concrete anchor pile +
orifice pits + suturing rope (choose verge supporting rope and wire rope anchor pile according to the requirements )

The same as GPS2,could satisfy the request of 100 years or                             longer anti-corrosion life .But the reinforcement capacity is only 70%～80% of others,it unsuitable to protect rockfall bigger than one m3 .

GTC-65B

High Strength Grille

Prestressing concrete anchor pile (choose verge supporting rope and wire rope anchor pile according to the requirements )

The same as GPS2 ,could satisfy the request of 100 years or longer anti-corrosion life .But it unsuitable to protect rockfall bigger than one m3 .

MG-GPS2

Wire Rope netting + steel wire grille + deeply slope firming concrete anchor pile

The same as GPS2 + steel wire grille + deeply slope firming concrete anchor pile [or edge anchor fixing(deeply slope firming concrete anchor pile 2-8m spacing modulus 2.25m + crossed supporting rope〔∮16/∮12〕+ wire rope netting (◇08/300/4*4㎡) +suturing rope(∮8)+ SO/2.2/50 iron grille + system anchor fixing ,stretching tie plate ]

Slope reinforcement + deeply anchor fixing ,can
restrain collapse and weathering ,restrict the movement scope of partial rockfall and be applicable to small rockfall or soil slope .

MG-GPS2-L

The same as MG-GPS2

The same as MG-GPS2 + slope landscaping

The same as MG-GPS2 + slope landscaping