Table 1 Parameters of energy-absorbing shock-resistant hydraulic supports.

From: Research on the simulation methods and shock resistance performance of energy absorbing columns in rockburst roadway supports

Hydraulic column

Technical parameters

Cylinder inner diameter (mm)

Φ230/Φ180

Cylinder wall thickness (mm)

21.5/17.5

Initial support force (MPa/kN)

31.5/1309

Working resistance (MPa/kN)

39.5/1650

Energy-absorbing device

Technical parameters

Yield resistance (kN)

3300

Material strength (MPa)

890

Wall thickness (mm)

8

Design yield displacement (mm)

120

Back to article page