Roadway Support Testing SystemCoal Mine Roadway SupportStructureTesting System

Coal Mine Roadway SupportRoadway Support Structure Force Testing System

I. Product Introduction

Supported roadways refer to the type of roadway reinforced and strengthened using mining support techniques in coal mines and other mining operations. Reinforcement is achieved through the use of various materials such as steel, prestressed anchor rods, polymer materials, and shotcrete materials.

This system is used to simulate the stress environment of surrounding rock in deep roadways and conduct mechanical performance and synergy tests on support structures (such as anchor rods/anchor nets, yielding supports, grouting reinforcement, etc.), providing a basis for optimizing roadway support design. It is applicable to fields such as mining and underground engineering.

II. Functional Features:

1. Can test the failure conditions of different roadway cross-sections.

2. Can test the failure conditions of roadways under uniform or non-uniform forces from all sides.

3. Can test the failure conditions when surrounding rock is added around the roadway cross-section.

4. Can obtain stress-strain curves for different hydraulic cylinders on all sides.

III. Main Technical Parameters:

1. Equipped with safety protection devices, capable of automatic shutdown or manual forced shutdown in emergencies.

2. Frame stiffness: 10 GN/m.

3. Axial force: 1000 kN, accuracy 0.5% FS.

4. Confining pressure: 100 MPa.

5. Operating temperature: Room temperature to 100°C.

6. Servo actuator: Adjustable cylinder stroke 0–100 mm.

7. Dynamic loading force: 500 kN, frequency 5 Hz.

8. Repeatability: ±0.5%.

9. Relative resolution: ±0.5%.

10. Electro-hydraulic servo hydraulic source:

10.1 System operating flow: 200 L/min;

10.2 System operating pressure: 28 MPa;

10.3 Motor "low pressure to high pressure" start;

10.4 High-pressure oil filter precision: 5 μm;

11. Includes a set of multi-functional mechanical loading software;

12. Capable of displacement control, force control, and deformation control.