February 18, 2024
Recently,Independently developed and applied to Haishiwan Coal Mine by China Railway Construction Heavy Industry Co., Ltd.“Kiln Coal Development No”TBMSuccessfully completed the spiral downhill tunneling with small turn and large inclination angle。As the first coal enterprise in Gansu Province to introduce and useTBMHard rock tunnel Boring Machine,It is also the first one completed in China.R50mSmall turn,14°Coal mine constructed by downslope rectangular spiral linksTBM,“Kiln Coal Development No”Good news came in the first month of 2024.,Successfully break through the kilometer barrier。
“Kiln Coal Development No”Spiral downhill tunneling with small turning and large inclination angle
“Kiln Coal Development No”TBMApplied to the development project of the third mining area of Haishiwan Coal Mine,The project is arranged in the floor of the second coal layer.,The total length is about 5.Four kilometers。The beginning of the project,The equipment will encounter the challenge of rectangular spiral tunneling with 14 degrees downhill and 50 meters radius turning.。
For the problems encountered in the construction process“Small turn、Big downhill、There are many fault fracture zones”And other industry problems。“Kiln Coal Development No”For the first time, the ultra-small empty top distance is adopted.UType shield structure design,It takes into account the shield type.TBMHost security,Meet the requirements for small turns,It also has an open type.TBMAdvantages of small headspace,Can meet the requirement of timely support。Blind area for shield top support,The R & D technical team of China Railway Construction Heavy Industry has developed a support system with front anchor net.UType a shield structure,Shorten the empty top distance from 8 meters to 4 meters,Realize the forward movement of support,So that that construction risk is effectively reduce。
“Kiln Coal Development No”TBMOff the line
“Kiln Coal Development No”TBMSuccessfully completed rectangular spiral downhill tunneling with small turn and large inclination angle,Fully demonstrateTBMAdvantages of Roadheader in Hard Rock Roadway Construction,It also makes China Railway Construction Heavy Industries.TBMThe technical advancement and reliability of the products have been strongly verified again.。China Railway Construction Heavy Industry Co., Ltd. is committed to taking customers as the center.、“One mine, one policy”A customized approach,AtTBMProvided during tunneling“Nanny-style”Service,Solve equipment problems quickly,Ensure the operation of equipment in the whole process,Write a new chapter of cooperation and development with coal mine customers。
In the field of construction machinery,Product performance and operation experience determine the user's every day.。For 28 years,Mingyu Heavy Industries has always focused on creating construction machinery products that best understand the needs
October 30,China Railway Construction Heavy Industry Co., Ltd. held a regular meeting on administrative work and economic operation analysis in the third quarter of 2024 in Changsha,Summarize the economic performance in the first three quarters,The tas
In Ningxia, which is full of vitality and infinite hope,“Gold milk source belt”,Dairy industry has become a local landmark industry.,It is booming at an alarming rate.。In this land of plenty.,A large dairy company relies on the persistent p
Hardcore player,It can be dug and loaded. Three, one, fourSY245H Strength player,Live up to its reputation Appearance upgrade,New counterweight Tall and powerful,Face value is online Engine power rating 150kW
Copyright Notice 2002-2024 global-ce.com Construction Machinery Online. All rights reserved.
Address: Room 901, Building C, Ruipu Mansion, Hongjunying South Road No.15, Chaoyang District, Beijing.100107 P.R.China