Railway Construction Heavy Industry "Tiebing Guanghua No.6" started smoothly, helping the construction of Guanghua Intercity Railway

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The report of the 20th National Congress of the Communist Party of China，Build a modern socialist country in an all-round way，We must adhere to the road of socialist cultural development with Chinese characteristics.，Enhance cultural self-confidence，Raise the flag around、Gather people's hearts、Nurture new people、Promote culture、Develop image and build a strong socialist cultural country。

Recently，By China Railway Construction Heavy Industries、The world's first large-diameter double-shield earth pressure combined Roadheader jointly built by China Railway 15th Bureau“Tiebing Guanghua No.6”，Tiangui Intercity Railway from Guangzhou East to Huadu（Guanghua intercity）Section from Jingxi Road to Baiyun Dongping（Jingbai interval）The No.2 shield shaft started smoothly.。

The total length of Jingbai Tunnel is about 8.62 kilometers，Shield construction needs to face the underpass reservoir、Broken fracture zone、Multiple boulders and upper soft and lower hard formation、Dense buildings and other major risk points。To ensure construction safety，By China Railway Construction Heavy Industries、CRCC South China Construction、China Railway 15th Bureau and other units set up technical teams to improve the level of shield intelligent construction.，Tailor-made diameter 8.9 meters，The total length is 131 meters，With a total weight of about 1500 tons. “Tiebing Guanghua No.6”Roadheader。

The Roadheader has dual shields.TBMAnd an earth pressure shield.，Have“High speed、High Torque、High precision tunneling capability”Three core advantages，Achievable“Synchronization of pushing and splicing”Function，Can effectively improve the tunneling efficiency in the hard rock stratum，Let Shield Tunneling Say Goodbye“Stop and go”The risks involved，Easily cope with excavation under various complex geological conditions。In addition，The roadheader is also equipped with advanced geological prediction system and advanced drilling and injection machine according to the complex strata in Guangzhou.，And ensure that that front stratum can be synchronously detected dure tunneling.，And take effective measures in time according to various bad formation conditions.。

The Guangzhou-Huadu Intercity Railway starts from Guangzhou East Railway Station of Line 18.，Stop at Huadu Huacheng Street Station，7 new stations，The line is 39 long.Six kilometers，The design speed is 160 kilometers per hour。After completion and opening to traffic，Will help“The Greater Bay Area on Track”Speed up construction，Build with higher quality“A net、A ticket、A string of cities”Intercity Network of Guangzhou Metropolitan Area。

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