Recently，The largest diameter pipe jacking machine made in China is jointly built by China Railway Construction Heavy Industry and China Construction Eighth Bureau.“Iron bugle”Successfully offline in the primary industry park of Railway Construction Heavy Industry，It will be formally put into construction.。

The largest diameter pipe jacking machine made in China“Iron bugle”

It is understood that，“Iron bugle”The geological conditions of the application project are complex.，It is necessary to cross the river、The ancient city wall、Municipal Road、Railway，Involving the relocation of many 220 KV high-voltage lines。The project adopts three parallel pipe galleries with different sections to be excavated simultaneously.，Pipe-jacking construction is adopted for the underpass of the cultural relics protection area and the main road section.，Outer diameter of jacking pipe joint 5.4 meters，It is the largest round section pipe jacking in similar projects in China.，The crossing stratum is full-section hard rock stratum.、Upper soft and lower hard formation、Clay strata, etc，Complex geology and large diameter pipe jacking construction，Higher requirements for the design of pipe jacking machine。

The largest diameter pipe jacking machine made in China“Iron bugle”Successfully offline

According to the characteristics of the project, China Railway Construction Heavy Industry，Jointly develop the largest diameter pipe jacking machine made in China with China Construction Eighth Engineering Division“Iron bugle”，Through targeted design and a number of intelligent auxiliary systems，Ensure the safety of the pipe jacking machine、Environmental protection、Efficient completion of super-large section pipe gallery construction。 

Group photo of guests

This time“Iron bugle”Successfully offline，It marks another breakthrough in the field of pipe jacking of domestic high-end underground engineering equipment.，To further enhance the mechanization of pipeline network construction、Intelligent level is of great significance.。Coming up，China Railway Construction Heavy Industry Co., Ltd.“Based on quality，Customer first”The idea of，Provide high quality service for the whole life cycle of pipe jacking machine，Contributing to the Construction of Urban Pipeline Network and the Responsibility of Central Enterprises。