Metis insist on the attitude of high-quality, high-service and advanced construction equipment to provide systematic solutions for global projects. Especially for the construction trades, security and quality are in the premier position. Self drilling anchor system is globally recognized secure supporting method and has applied in several projects with different geological conditions. If anchor bolt system is used in Nam Ngum Ⅲ Hydropower Station, it will not only improve the quality of project and decrease damage, but also extend its lifetime.
At about the early 20th century, self drilling anchor had been developed and employed. So far, many countries and regions have formulated standard and specification of it. It is widely used in mine roadway, railway tunnel, highway tunnel and drainage tunnel, etc. Recent years, with the rapid development of high-rise buildings and railway engineering, the technology of self drilling anchor is widely used for reinforcement in foundation pit, slope and landslide, etc.
Adopting the method of self drilling anchor with sprayed concrete, drilling, grouting and anchoring function can combine together, safe, high-efficient and easy to operate.
Building railway network, tunnel construction is quite convenient for saving cost. And self drilling rock anchor is an efficient way to reinforce structures. It combines drilling, grouting and anchoring together, bonds to soil layer, stabilizes stratum and then reaches to the effect of supporting projects.
