I. Overview of the roadway engineering
In the construction and production of underground mining mines, the tunnel engineering is the passage for mining ore. Among them, the shaft project is often one of the major chain projects in the mine construction, and its completion time directly affects the total construction period of the mine construction; the engineering capacity of the Pingxiang and Tian (slip) wells is also large. According to mine iron ore statistics 9 and 27 non-ferrous metals, the amount of shaft engineering infrastructure design production capacity of ten thousand tons respectively 1810m3 Â And 387.2m , in addition, after the mine is put into production, the amount of mining and cutting wells is also very large. It can be seen that the excavation task of the mine shaft engineering is very heavy. Therefore, it is of great significance to improve the construction technology of the roadway, speed up the construction, ensure the quality of the project, shorten the infrastructure period of the mine and ensure the balance of the mine's third-level ore, and achieve stable production and high yield of mine production.
Second, I am returning to the development of construction technology
Since the liberation, the construction technology and equipment level of mine shafts have been greatly improved, and a technical team with considerable scale and level has been established, which has fundamentally changed the backwardness of the construction technology of old mines in China.
The progress of shaft construction technology is highlighted in the high efficiency of the ring-shaped, single-shaped drilling rig, independent rotary rock drill and large-capacity wall-mounted, circular-track, center-rotary rock grabs. Chiseling and loading equipment, as well as a large number of supporting equipment such as lifting and anchoring spray machines, constitute a mechanized construction line for shaft construction, and cooperate with smooth blasting, bolting and shotcreting support, short section excavation and multi-layer hoisting, and masonry A series of technological measures such as operations have achieved good results in the highest monthly wells of 126.1m and multiple breakthroughs in the monthly wells of 100m . The progress of the construction technology of the roadway has been developed to adopt a variety of pneumatic or hydraulic rock drills for rock drilling, rock loader loading, transfer of locomotives, and locomotive traction. . Rucheng tungsten ore mining operations and a number of mechanized equipment line, the number of consecutive years the average monthly footage up to about 150; Sinko mercury mine and Ma Wan-shui engineering team to quickly organize drift excavation has had record monthly footage End Tunnel The record of over kilometer has entered the ranks of the world's advanced level.
The advancement of the tunneling technology is mainly reflected in the transformation of the tunneling method. It has successfully developed a variety of types of hanging tanks and climbing tanks, and promoted the application of the hanging tank excavation method and the climbing and excavation method; It has been promoted and applied in more than 10 mines; especially the recent rise of Tianjin Drilling has a strong vitality. Nearly 40 types of patio rigs have been applied in nearly 20 mines, and more than 200 patios have been drilled . The highest patio is 140m long and the diameter is 0.5~2m . The monthly footage has reached the level of nearly 100 meters. The excavation and excavation adopts a mechanized operation line for inclined shaft excavation mainly based on air-leg rock drill, bucket loader and bucket lifting transportation, and has achieved good technical and economic effects. In the construction of diverticulum, the application of various techniques such as improvement of construction scheme, smooth blasting and joint support of anchor spray nets has greatly improved the construction technology of diverticulum.
In addition, the research results of grouting technology, equipment and materials have been promoted and applied in the pre-grouting and water blocking, rock reinforcement and flood treatment in the roadway engineering, which has improved the soft and broken and large water volume rock formations. Construction technology level.
In the construction and production of underground mining mines, the tunnel engineering is the passage for mining ore. Among them, the shaft project is often one of the major chain projects in the mine construction, and its completion time directly affects the total construction period of the mine construction; the engineering capacity of the Pingxiang and Tian (slip) wells is also large. According to mine iron ore statistics 9 and 27 non-ferrous metals, the amount of shaft engineering infrastructure design production capacity of ten thousand tons respectively 1810m3 Â And 387.2m , in addition, after the mine is put into production, the amount of mining and cutting wells is also very large. It can be seen that the excavation task of the mine shaft engineering is very heavy. Therefore, it is of great significance to improve the construction technology of the roadway, speed up the construction, ensure the quality of the project, shorten the infrastructure period of the mine and ensure the balance of the mine's third-level ore, and achieve stable production and high yield of mine production.
Second, I am returning to the development of construction technology
Since the liberation, the construction technology and equipment level of mine shafts have been greatly improved, and a technical team with considerable scale and level has been established, which has fundamentally changed the backwardness of the construction technology of old mines in China.
The progress of shaft construction technology is highlighted in the high efficiency of the ring-shaped, single-shaped drilling rig, independent rotary rock drill and large-capacity wall-mounted, circular-track, center-rotary rock grabs. Chiseling and loading equipment, as well as a large number of supporting equipment such as lifting and anchoring spray machines, constitute a mechanized construction line for shaft construction, and cooperate with smooth blasting, bolting and shotcreting support, short section excavation and multi-layer hoisting, and masonry A series of technological measures such as operations have achieved good results in the highest monthly wells of 126.1m and multiple breakthroughs in the monthly wells of 100m . The progress of the construction technology of the roadway has been developed to adopt a variety of pneumatic or hydraulic rock drills for rock drilling, rock loader loading, transfer of locomotives, and locomotive traction. . Rucheng tungsten ore mining operations and a number of mechanized equipment line, the number of consecutive years the average monthly footage up to about 150; Sinko mercury mine and Ma Wan-shui engineering team to quickly organize drift excavation has had record monthly footage End Tunnel The record of over kilometer has entered the ranks of the world's advanced level.
The advancement of the tunneling technology is mainly reflected in the transformation of the tunneling method. It has successfully developed a variety of types of hanging tanks and climbing tanks, and promoted the application of the hanging tank excavation method and the climbing and excavation method; It has been promoted and applied in more than 10 mines; especially the recent rise of Tianjin Drilling has a strong vitality. Nearly 40 types of patio rigs have been applied in nearly 20 mines, and more than 200 patios have been drilled . The highest patio is 140m long and the diameter is 0.5~2m . The monthly footage has reached the level of nearly 100 meters. The excavation and excavation adopts a mechanized operation line for inclined shaft excavation mainly based on air-leg rock drill, bucket loader and bucket lifting transportation, and has achieved good technical and economic effects. In the construction of diverticulum, the application of various techniques such as improvement of construction scheme, smooth blasting and joint support of anchor spray nets has greatly improved the construction technology of diverticulum.
In addition, the research results of grouting technology, equipment and materials have been promoted and applied in the pre-grouting and water blocking, rock reinforcement and flood treatment in the roadway engineering, which has improved the soft and broken and large water volume rock formations. Construction technology level.
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