The Baolin Tunnel is located at the junction of Guangshui and Dawu, with a total length of 13.84 kilometers. As the tunnel crosses the Zhonghua Mountain Reserve, if the drilling and blasting construction method is used, at least six branch holes must be hit, which will inevitably cause damage to the environment of the protected area. In order to protect the ecology, the construction of the full-section hard rock tunnel boring machine is the best choice. The current domestic roadheader has a minimum diameter of 4.5 meters, while the "Ebei Baolin" has a diameter of 4 meters. The difficulty of system integration technology can be imagined. The boring machine has a total length of 290 meters, which is 90 meters longer than a high-speed railway. It weighs about 750 tons, with a total installed power of 2,400 kilowatts and a cost of 74.52 million yuan. The monthly construction progress of the aircraft can reach 600 meters. Hu Hui, director of the Guangwu Construction Management Department of the North Hubei Project, said that this is the first use of the TBM machine in the water conservancy project of our province. After the Spring Festival, the equipment will be transported to the site for installation. It is expected to start construction in March. Filling Machine,Liquid Filling Machine,Bottle Filling Machine,Water Filling Machine,Pharmaceutical Filling Machine Jining Myway Machinery Co., Ltd. , https://www.mwpackall.com
Recently, the hard rock tunnel boring machine (TBM) specially designed for the Baolin Tunnel of the North Hubei Water Transfer Project was launched in Changsha. The equipment was jointly developed by Tiejian Heavy Industry and China Power Construction Sixth Bureau. A small diameter open type TBM machine.
Customized water supply project in northern Hubei Province, the first small-diameter open-type TBM machine in China