The construction process of slit wedge tubing bolt is simple and efficient.Under the influence of blasting vibration,as the displacement or deformation of the surrounding rocks become more significant,the anchoring force of the slit wedge tubing bolt increases more significantly.The slit wedge tubing bolt is widely used in the support of mine roadway.In order to avoid the collapse of the slit wedge tubing bolt together with the rock mass,which affects the safety of the mine,based on the theory of rock loosing zone support,the reasonable length and mesh size of the slit wedge tubing bolt in Makeng Iron Mine are calculated through the bolt suspension theory.Finally,the application scope of the slit wedge tubing bolt-shotcrete support technology is determined,and it is widely used in the underground roadways of the Mackeng Iron Mine.The application of the slit wedge tubing bolt technology ensures the safety and stability of underground mining roadways during the production process.
关键词
缝管式锚杆/松动圈支护理论/锚杆悬吊理论/锚网喷支护
Key words
slit wedge tubing bolt/rock loosing zone support theory/bolt suspension theory/bolt-shotcrete support
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