新闻资讯
新闻资讯

Drilling tools for rock excavation

Time

2021-10-10 15:39

Source:

Drilling tools for rock excavation
Drilling tools for rock excavation

The methods of rock drilling and excavation include the rock drilling and blasting method and the mechanical rock breaking method. In China, the construction mainly relies on the rock drilling and blasting method, with operational areas concentrated in tunnels and culverts in infrastructure engineering and shaft engineering in underground mining production.

The development direction of tunnel and shaft rock drilling and excavation is to adopt hydraulic rock drilling rigs for mechanized excavation, full-face tunneling machines, and shaft drilling machines for mechanized construction operations. China places great importance on the research of hydraulic rock drilling rigs, especially full hydraulic rock drilling rigs.Since the 1980s, nearly 10 models of hydraulic rock drilling rig prototypes have been developed and imitated, mainly focusing on full hydraulic rock drilling rigs. However, for various reasons, these prototypes have not been successfully used in actual production, and the air-leg lightweight rock drill remains the main construction machinery in rock drilling and excavation projects.

 

From20the century90mid-1980s, domestic rock drilling machinery manufacturing enterprises and research institutions began to redevelop tunnel rock drilling rigs based on summarizing experiences, while foreign rock drilling machinery manufacturing enterprises in China also began to mass-produce full hydraulic rock drilling rigs.21By the early 21st century, the number of imported and domestically produced full hydraulic rock drilling rigs used by large domestic construction enterprises and mines continued to increase, with some becoming the main equipment in tunnel and shaft construction. The development history of rock drilling equipment in industrially developed countries shows that the application of full hydraulic rock drilling rigs reflects the modernization level of construction and should have considerable development space in future tunnel and shaft construction operations in China, along with supporting rock drilling tool products.

 

Prev

Full hydraulic open-pit rock drilling rig tools

Next

The beautiful landscape stretches for thousands of miles, joyfully celebrating the eternal spring of our motherland.

RELATED INFORMATION

Maxus Mining acquires antimony and tungsten projects in British Columbia

Maxus Mining announced Thursday it has entered an option agreement to acquire a 100% interest in one tungsten and three antimony exploration properties in British Columbia covering more than 4,100 hectares

Lundin targets top-ten copper miner status in bold expansion plan

Canada’s Lundin Mining has unveiled a strategic growth plan designed to catapult the company to the status of the world’s top ten copper producers.

SolGold to start mining copper from Cascabel in early 2028

SolGold is fast-tracking the development of its flagship Cascabel copper-gold project in northern Ecuador, with first production now expected in 2028, three to four years ahead of its original schedule

Teck approves $2.4B expansion of Highland Valley Copper

Teck Resources’  board has approved a C$2.1–C$2.4 billion ($1.6 -$1.8 bn) project to extend the life of its Highland Valley Copper Mine (HVC) in British Columbia, securing operations at Canada’s largest copper mine into the mid-2040s.

Ariana Resources nears production at Tavsan gold mine

Ariana Resources soared after the Australian gold developer announced the imminent start of production at the Tavsan gold mine in Türkiye .

Northern Minerals expands mining leases at Browns Range

Heavy rare earths company Northern Minerals has been granted a new mining lease that more than doubles the tenure area at its Browns Range project, in Western Australia’s East Kimberley.