Recently，Railway Construction Heavy IndustryUOpen-top type multifunctional miningTBM“Ludun No.1”It was officially launched in Yuwu Coal Industry, Changzhi City, Shanxi Province。TBMExcavation diameter 6.33 meters，It is the largest diameter used in underground mines in Shanxi Province.TBM。

It is understood that， “Ludun No.1”First at 14°Step initiation in the downhill section，There is a large downhill slope of underground roadway.，Device host segment size is too large、Problems such as too high tonnage。In order to ensure the safety of the equipment，Prevent sliding or falling，The service team of China Railway Construction Heavy Industry Co., Ltd. and Yu Wu of Mining Construction Branch of Lu'an Engineering CompanyTBMFor the Project Department“Theoretical data+Field test”The way，Calculate the friction coefficient of the track，Finally, it is determined to pass multiple groups of rail clamps.、Car arrester、And anchor cable locking chain on both sides，Prevent the equipment from sliding down。

At the same time，The size of the equipment for downhole transportation is small、Disassemble and disperse，There are more than 500 times of transport trucks in the well.。More than 1200 screws for cutterhead components，For the first time, the small assembly chamber is used to install the equipment.，After the shield body is installed, the distance between the left and right sides is only 1.5 meters。Railway Construction Heavy Industry Field Service Personnel Solve Problems for Customers，Overcome the limitation of underground installation space、High temperature、Dust、Long operation time and other harsh working environment，It ensures the smooth start of the equipment.。

It is reported that，“Ludun No.1”TBMTrial tunneling length: 8,300m，At present, the key tasks in the early stage have been completed.，Lay a good foundation for the subsequent tunneling of the equipment，It has been unanimously recognized by customers.。