In mine support and tunnel support, W-shaped steel strips have become more and more popular. Through the cooperation with rock bolts, W Steel Strips can connect scattered bolts to form a load-bearing structure system to improve the support effect.

Generally W steel strips are made of Q235, Q215, Q195 materials, Q235 is a common specification. W steel strips has these types width, such as 150mm, 180mm, 200mm, 220mm, 250mm, 280mm, 300mm. The W steel strip itself has huge advantages. The steel degree has been increased by more than 70 times, and the cross-section bending resistance is strong, which has increased by 40 times nearly.

W steel strip mainly has the following characteristics:

1.W steel strip is a serial product, and different models can be selected according to different geological conditions and different requirements;

2. Compared with other types of steel strips, W steel strips are not easy to tear and have a high degree of steel;

3.W steel strip has high cross-section utilization rate, material saving and high cost performance;

4. The steel of W steel strip is increased by about 70 times, and the bending section modulus is increased by 37 times.

Several combined support methods for W-shaped steel strips:

1.High-performance anchor rod, steel belt and metal mesh;

2.High-performance anchor rod, steel belt, anchor cable and metal mesh;

3.High-performance anchor rod, steel belt, pre-tensioned truss and metal mesh.

Because the upward and downward section modulus of the W steel strip is very different (the downward section modulus is about 2.75 times the upward section modulus), so when installing, use an anchor drill to tighten upwards, and the section modulus of the steel strip. It is small and easy to closely adhere to the surrounding rock of the roof. However, when the roof is pressed, the downward bending modulus of the steel strip is very large, which makes the anchor loosen the surrounding rock to form a whole.

Zhongxiang Mine Support Factory is the industry benchmark in this regard. Its various support products are sold to more than 100 countries and regions around the world. If you have any needs, please contact us now.

Email: zxminesupport@zxsteelgroup.com

Whatsapp: +86 18236766038