Steel wire mesh for tunnel support

Tunnel reinforcing mesh name reinforcement mesh, reinforced mesh, welded fabric, welded steel wire mesh.

Tunnel reinforcing mesh consist of longitudinal and transverse bars welded to be a 90°reinforcing mesh panel.

After Anchor bolt fitted in the tunnel, then tranport the required reinforcing mesh to the tunnel to install it.It need to be welded firmly anchor bolt and reinforcing mesh sheet at the intersection by welding machine and welded the joint of the each reinforcing mesh sheet together, so that the whole tunnel reinforcing mesh sheet has more mechanism and integrity.

According to the international <highway tunnel design>JTG70-2004 ruled, ribbed steel mesh be used during shotcrete, which is beneficial to improve the shearing strength and bening strength of shotcrete, increase cement's punching resistance, resistance to bending fatigue, raise intergirty of shotcrete, reduce the shrinkage of shotcrete and prevent falling blocks. The steel wire mesh is always rectangle sheets,and mesh spacing is from 150mm to 300mm. We always adjust 150mm x 150mm, 200mm x 200mm, 200mm x 250mm, 250mm x 300mm, 300mm x 300mm as mesh spacing. The connect length of steel wire mesh is not less than 30d( d is wire diameter of steel wire mesh).

The shotcrete protection layer thickness of steel wire mesh is not less than 20mm. When use double layers steel wire mesh, the distance of double layers steel wire mesh is not less than 60mm.

The products image as below:

The specification as below:

concrete reinforced Welded steel mesh
Mesh model	longitudinal reinforcement			transverse reinforcement			Weight (kg / m2)
	wire diameter (mm)	distance(mm)	area per meter (mm2/m)	wire diameter (mm)	distance (mm)	area per meter ( mm2/ m)
A16	16	200	1006	12	200	566	12.34
A14	14	200	770	12	200	566	10.49
A12	12	200	566	12	200	566	8.88
A11	11	200	475	11	200	475	7.46
A10	10	200	393	10	200	393	6.61
A9	9	200	318	9	200	318	4.99
A8	8	200	252	8	200	252	3.95
A7	7	200	193	7	200	193	3.02
A6	6	200	142	6	200	142	2.22
A5	5	200	98	5	200	98	1.54
B16	16	100	2011	10	200	393	18.89
B14	14	100	1539	10	200	393	15.19
B12	12	100	1131	8	200	252	10.9
B11	11	100	950	8	200	252	9.43
B10	10	100	785	8	200	252	8.14
B9	9	100	635	8	200	252	6.97
B8	8	100	503	8	200	252	5.93
B7	7	100	385	7	200	193	4.53
B6	6	100	283	7	200	193	3.73
B5	5	100	196	7	200	193	3.05
C16	16	150	1341	12	200	566	14.98
C14	14	150	1027	12	200	566	12.51
C12	12	150	754	12	200	566	10.36
C11	11	150	634	11	200	475	8.7
C10	10	150	523	10	200	393	7.19
C9	9	150	423	9	200	318	5.82
C8	8	150	335	8	200	252	4.61
C7	7	150	257	7	200	193	3.53
C6	6	150	189	6	200	142	2.6
C5	5	150	131	5	200	98	1.8
D16	16	100	2011	12	100	1131	24.68
D14	14	100	1539	12	100	1131	20.98
D12	12	100	1131	12	100	1131	17.75
D11	11	100	950	11	100	950	14.92
D10	10	100	785	10	100	785	12.33
D9	9	100	635	9	100	635	9.98
D8	8	100	503	8	100	503	7.9
D7	7	100	385	7	100	385	6.04
D6	6	100	283	6	100	283	4.44
D5	5	100	196	5	100	196	3.08
E16	16	150	1341	12	150	751	16.46
E14	14	150	1027	12	150	754	13.99
E12	12	150	754	12	150	754	11.84
E11	11	150	634	11	150	634	9.95
E10	10	150	523	10	150	523	8.22
E9	9	150	423	9	150	423	6.66
E8	8	150	335	8	150	335	5.26
E7	7	150	257	7	150	257	4.03
E6	6	150	189	6	150	189	2.96
E5	5	150	131	5	150	131	2.03

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