Study on the improvement of the open TBM system and supporting equipment based on the Gaojiapu Coal Mine

In order to cope with multi-dimensional mine disasters in deep mines, enhance the adaptability of open tunnel-boring machine (TBM) actual working face environment, and improve excavation speed TBM, based on project Gaojiapu Coal Mine Zhengtong Industry, Shaanxi Province, this paper comprehensively considers difficulties encountered by TBM process improves system its supporting equipment. The research shows that removing redundant equipment can effectively solve entering mine, such as loading unloading, turning; optimizing shield, shortening main beam, setting support platform jumbolter beam deal problem is not timely easy jam. Opening circular holes installing slag cleaning guide plates clean up waste protect from deformation. Installing a bucket wheel between trailer reduce accumulation road ahead. Compared ordinary construction technology, monthly average footage level after technical improvement 300.88 m, which 3.8 times rock roadway general 1.6 comprehensive excavation.