Model and implementation path of “pumping in advance and then construction” for a new coal and gas outburst mine

Based on the goal of accelerating the exploring of the coalbed methane (CBM) from the ground and popularizing the philosophy of “pumping in advance and then construction” (PAC) for a new coal and gas outburst mine, the basic characteristics, the model of the condions mode including the time, space and safety (TSS) conditions and the implementation path including the policy, technology and engineering (PTE) are designed, and an engineering example of the Guanzhai colliery is studied in detail.The main research results include the extracting of CBM from the ground well is an innovate countermeasure of controlling the regional gas of the coal mine and the effective way of promoting and realizing the PAC for the new coal mine, which contains the scientific plan for the extraction of the CBM and engineering partition of the coal mine construction, connecting and coordinating the exploitation of the CBM and coal.Also, the implementation path is the overall scheme of definite carrying out the PAC policy in the stage of the plan for the new colliery, combined with the feasibility research results for this project, the application scheme of the PAC technology is determined, which should be execute on the basis of the steps of ground drilling well, pumping the underground gas and building the new coal mine.The obtained research results show that the field technology scheme of exploring the CBM and PAC for the Guanzhai colliery is feasible, which has a typical representation and favorable reference meaning.