The support effect of resin anchor rods is very significant, manifested in the following aspects:
1, Strong anchoring force, effective control of surrounding rock
The anchoring force of resin anchor rods is significantly higher than that of wooden anchor rods, bamboo anchor rods, and traditional metal anchor rods, generally 34 times higher. This strong anchoring force enables resin anchor rods to perform excellently in controlling rock deformation and maintaining tunnel stability. For example, the anchoring force of a resin anchor rod with a diameter of 15mm can reach 5075KN, which is crucial for maintaining the integrity and safety of the tunnel.
2, Low support cost and significant economic benefits
Resin anchor rods are lightweight and easy to transport, which can reduce the investment of tunnel support materials in transportation and thus lower the support costs during coal mining. At the same time, due to the good stability of resin anchor support, the maintenance and upkeep of the roadway is relatively low, and the maintenance costs will also be correspondingly reduced. In addition, the use of resin anchor rods can reduce the density of anchor rod support, decrease the thickness of sprayed concrete, thereby further saving support materials and improving economic benefits.
3, Easy construction and improved work efficiency
The installation speed of resin anchor rods is nearly four times faster than traditional fast hardening cement anchor rods, and the operation is simple. In coal mining operations, the cutting of resin anchor rods is convenient and does not produce sparks, reducing the labor intensity of coal miners and improving the efficiency of underground operations. In addition, resin anchor rods will not cause damage to other mechanical equipment, and the construction process is simple, which is conducive to accelerating the project progress.
4, Significant support effect, ensuring construction safety
Resin anchor rod support utilizes the hard structure inside the surrounding rock to reinforce the external rock mass, fully utilizing the support capacity of the surrounding rock itself to form a relatively stable support structure. This support method can effectively improve the stability of the surrounding rock of the tunnel and ensure the safety of construction. At the same time, resin anchor rods have strong corrosion resistance, are not exposed to ultraviolet radiation during underground use, have a slow aging rate, and have a long service life. They can maintain good support effects during underground service in coal mines.
In summary, resin anchor rods have shown excellent performance in anchoring force, support cost, construction simplicity, and support effect, making them an efficient, economical, and safe support material. It has broad application prospects in coal mine roadway support and other geotechnical engineering fields.
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