Road resistance and length，The line is coming.。Be known as“Underground aircraft carrier”The Butterfly Change Journey of China's Roadheader from Following to Leading，Even more so。
Liu Feixiang, chief scientist of China Railway Construction Heavy Industry Group Co., Ltd.，Long-term struggle in the forefront of scientific research and engineering technology，Leading China's Roadheader Industry with Independent Innovation、And run to the leading leapfrog development.。Facing the major needs of the country，Facing the world's frontier of science and technology，Not superstitious about international authority，Constantly break the shackles of technology，Insist on scientific and technological self-reliance and self-improvement，Yes“Underground aircraft carrier”Dream Chaser Liu Feixiang Moves Forward、A true portrayal of striving to be the first。
The first domestic large-diameter open typeTBM
Tunnel Boring Machine is a set of machinery.、Electrical、Hydraulic、High-end equipment integrating mechanics and other technologies，It is recognized“King of Construction Machinery”，And the rock tunnel Boring Machine（TBM）And extra-large diameter Roadheader.“The jewel in the crown”。At the beginning of this century，Roadheader development technology is basically beautiful、Day、Monopoly of specialized companies in developed countries and regions such as Europe，Be controlled by others everywhere。
Liu Feixiang recalls：“Years at the Engineering Bureau.，I deeply understand the pain of not having my own high-end underground engineering equipment.，Technology is controlled by others，Suffer everywhere。”
In order to change the passive situation，Liu Feixiang led the scientific research team to insist on independent innovation，Not only succeeded in gnawing down this piece,“Tough bones”，Still brave in scientific and technological innovation“No man's land”，It has solved many international technical problems.。Facing major water diversion projects，Liu Feixiang led the team to invent an efficient rock-breaking cutter.、High-torque electro-hydraulic hybrid driven、Key technologies such as high-precision deviation correction and direction control，Led the development of the first domestic open typeTBM“Changchun”、Xinjiang Water Diversion ProjectTBMAircraft fleet and other high-end equipment，Achieve crossing 280MPaExtremely hard rock、Crushing stratum jamming machine quick extrication。Facing the river-crossing and sea-crossing passage、Traffic Engineering，Liu Feixiang Takes the Lead in Overcoming Multi-cavity Pressure Self-compensation Sealing、Bidirectional isolation automatic telescopic tool Chan、Key technologies such as coupling control of construction parameters and stratum deformation，Developed a domestic maximum excavation diameter of 16.07m Shield Machine“Jinghua”，Helping the longest highway tunnel with shield method in China，Realize millimeter-level surface settlement；Research and development of Shield Machine with the largest seabed depth of 106 meters in China“Shenjiang No.1”，Achieve ultra-high pressure bearing capacity，Significantly reduce tool change time，Lead the domestic productionTBMAnd the overall technology of large Shield Machine is leading in the world.。
The world's first steep spiral tunnel Boring Machine
Facing the fruitful results in front of us.，Liu Feixiang did not stop.，Instead, it aims at new directions of innovation.。Compared with the horizontal heading machine,，Shaft/The design of inclined shaft roadheader is more difficult.。Vertical shafts and inclined shafts are energy sources.、Traffic、Key projects in municipal and other fields，The traditional well construction mode is difficult.、High risk、The cycle is long。After intensive research，Liu Feixiang led the team to conquer the equipment excavation.、Slag tapping、Attitude control and other international technical problems，Successfully developed the world's first shaft boring machine、The world's first 23m super-large diameter full-face shaft boring machine and other series of shaft boring machines，Compared with the traditional mode, the efficiency is greatly improved.，The construction of key projects has been effectively guaranteed.。
Urban underground space development projects such as underground intelligent garage，Liu Feixiang took the lead in conquering the technology of high-power double cutting head and its load adaptive linkage control.，Developed the world's largest diameter of 23 meters cutting shaft boring machine“Dream”，Applied to the shaft intelligent garage project in Jing'an District, Shanghai。After the completion of the project，It will become the world's largest diameter vertical underground intelligent parking garage.。
In Liu Feixiang's opinion，The problem of engineering construction is the goal of tackling key technical problems.。The Beishan Underground Laboratory is“The 13th Five-Year Plan”It is one of the major projects to start construction in the national planning outline.，Its construction faces extremely hard rock.、Large slope spiral tunneling and other difficult problems，Liu Feixiang led the team to invent key technologies such as continuous correction of large curvature and precise direction adjustment of micro-motion.，Developed the world's first spiral inclined shaft roadheader“Beishan 1”，Effectively cracked the small radius spiral turn.、10%Big downhill、Difficult Problem of 590m Vertical Spiral Tunneling。
Deepest undersea tunnel shield machine in China
At present，The level of development led by Liu Feixiang/Vertical/Horizontal and other series of roadheader，It not only meets the urgent needs of major domestic construction projects,，Also exported to Italy、Russia、India、Korea、Turkey and other countries and regions，Promote the market share of domestic roadheader to rank first in the world，Let“China Equip Equip World”Become a reality。
