A sharp turn? How to Realize 180 ° "Magnificent Turn" of Hard Rock Roadheader Equipped by China Railway
October 29, 2024
The other day，Good News from East No.2 Mining Area of Liuzhuang Coal Mine，By China Coal Xinji、Mining equipment jointly developed by China Railway EquipmentTBM“New Shield 1”（China Railway 1429）At a depth of 780 meters underground，Achieve purityTBMThe mechanical method successfully tunneled through a radius of 70 meters.UShaped bend，Complete the whole machine 180°Yes“Turn around magnificently”Tunneling。
Create domestic 6-meter-class coal mineTBMNew record of small turning radius，During the turn，Achieve the highest daily footage of 10 meters、Monthly footage 161.38 meters。During construction，Liuzhuang Coal Mine and China Railway Equipment jointly conqueredTBMUltra-small curve tunneling“Continuous slagging、Attitude control、Fast cutting of extremely hard rock”And other technical difficulties，It provides a new idea for small turning construction under complex geological conditions in coal mine field.。
In recent years，China Railway Equipment Strengthens Scientific and Technological Innovation and Equipment Manufacturing Upgrading，Successfully developed and manufactured a large number of ultra-small turning radiusTBM，Break the rulesTBMTurning radius limit of 300m，It has achieved a major technological breakthrough in turning radius from 300 meters to 30 meters.，Pumped storage power stations across the country、It is widely used in major engineering fields such as mining and energy development.。
Turning radius 30m
November 2020，The world's first compact、Ultra-small turning radius hard rockTBM“Wendeng No”Successfully applied in Shandong Wendeng Pumped Storage Power Station Project，Successfully implementedRTunneling construction with 30m ultra-small turning radius，This project is the first time that China willTBMThe construction method is introduced into the construction field of pumped storage power station。
Turning radius 40m
September 2022，“Ping Bao No”Mine useTBMSuccessfully helping the construction of gas control roadway project of Pingbao Coal Industry in Henan Province，The equipment is designed with a minimum turning radius of 40 meters.，Equipped with intelligent roofbolter and advanced drilling rig，The efficiency of roadway excavation is further improved.。
Turning radius 50 m
October 2022，The world's first large slope+Ultra-small turning radius miningTBM“Zijin Construction”Successfully applied in Heilongjiang Duobaoshan Copper Mine Project，RealizationRTunneling construction with 50m ultra-small turning radius，China Railway Equipment is Challenging New Working Conditions—A key step on the road of slope turning excavation。
Turning radius 75m
March 2021，6-meter-class mining ultra-small turning radius miningTBM“China Railway No.865”Successfully applied in Guizhou Guineng Juxin Coal Mine，Tunneling construction with 75m ultra-small turning radius，Promoting Coal Mine Mechanization in Guizhou Province、Intelligent well construction steps up to a new level。
Turning radius 80m
March 2023，The first mining variable diameter open type in ChinaTBM“China Railway 1159”It is applied to the roadway construction in the eighth mining area of Linhuan Coal Mine of Huaibei Mining Industry.，The equipment is designed with a minimum turning radius of 80 meters.，The excavation length is about 11 kilometers.，Maximum burial depth of 940 m。
The turning radius is 90 meters
October 2021，The world's first large-diameter（9.53 meters）Super small turnTBM“Funing”Starting excavation at Funing Pumped Storage Power Station in Hebei Province，The equipment is designed with a minimum turning radius of 90 meters.，Maximum design longitudinal slope 9.02%，Is the largest diameter in the world at presentTBMThe equipment with the smallest turning radius and the largest longitudinal slope。
