Key technology and application of pre-stressed anchor to improve pre-tightening force
As one of the key parameters of bolt support, pre-tightening force plays a decisive role in active support. Domestic and foreign research shows that increasing the pre-tightening force of bolt can reduce the occurrence of roof fall accidents, so as to effectively improve the pre-tightening force of...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Coal Science and Technology
2022-12-01
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| Series: | Meitan kexue jishu |
| Subjects: | |
| Online Access: | http://www.mtkxjs.com.cn/article/doi/10.13199/j.cnki.cst.2022-1573 |