News information

There are many different kinds of underground mineral resources in our country, many metal deposits and rare metal deposits geomorphic geological structure of ore body form grade change is more complex, in such aspects as reserves to obtain C class above, must be combined with the surface drilling and underground tunnel drilling method to reach. Underground tunnel drilling refers to the drilling of various angles drilled by a special drill in a small underground tunnel. Compared with the surface borehole, the tunnel drilling is mostly small diameter shallow hole. We know that the surface drilling due to orebody shape constraints such as land, often through the thick layer to control the ore body. While in tunnel excavation control ore body slow construction cost is high. So the tunnel drilling is becoming more and more attention.


With the development of drilling machinery design and manufacturing, some special new type of hydraulic tunnels appeared. They have small volume light weight lifting long stroke to a high degree of automation, no tower into the characteristics, has overcome the past moving surface drill to need to build large cavern tunnel construction, takes up field large bulky shortcomings such as complex operation.


In recent years, tunnel drilling has developed rapidly, and has been widely used in the field of mine development services and other engineering fields.


(1) in the exploration of ore deposits, especially in the exploration of ore deposits such rare metal, non-ferrous metal tunnel drilling is used to recover deposits, encryption exploration survey and geological structure and ore bodies are sampling and validation, etc.


(2) in mine development, it is commonly used to drill holes drilled holes and holes drilled in holes, holes drilled in holes, holes drilled in holes and holes, etc.


(3) in the field of the other geotechnical engineering construction, tunnel drilling equipment and technique can be used in dam foundation slope strengthening the management of geological hazards of deep foundation pit support, as well as industrial commercial traffic military aspects of the construction of underground engineering.