Kilometer Deep Well Big Mountain Cave Room Adjacent Formation Dynamic Response And Control Key Technologies Research

As humans continue to increase in demand for minerals, mining is also continually expanding the scale. Easy shallow mining of mineral resources are depleting and underground mining to deep mining is an inevitable trend.80 years from the 20th century, the coal mining depth has reached 1300m. As the depth increases, the problems encountered are also gradually emerged. Deep and high stress the prevalence of soft rock, making the shaft design and construction of roadway and the loading chamber Ingate's construction safety to be resolved. Specially kilometer below deep well tunnel, mountain cave room under adjacent formation dynamic response rule and control key technologies research especially important. Makes the dynamic system the big mountain cave room, studies each stage the big mountain cave room lamination to excavate the adjacent formation the dynamic effect, knows its adjacent formation response rule, the research lamination excavates, the construction order, the adjacent formation to be stable and between the adjacent formation releasing time's relations, study the big mountain cave room failure mechanism and the lamination excavate the adjacent formation dynamic response rule, proposed that each stage optimization supports and protections plan, guaranteed the coal mine production safety, has the very vital significanceThe paper in summarized under the current kilometer deep well domestic and foreign research background, has explained regarding the tunnel, the big mountain cave room construction supports and protections characteristic, has studied under the dynamic adjacent formation the technology which excavates regarding the big mountain cave room lamination. The paper in unifies Xie Qiaokuang the ore basket well, the auxiliary shaft, as well as in the air shaft wharf gate loading mountain cave room construction's situation, has carried on the adjacent formation survey and the adjacent formation dynamic rule research, utilizes the FLAC3D numerical model numerical analysis, forecast that the supports and protections effect and the lamination excavate the adjacent formation change situation, has carried on the optimization design to the original tunnel supports and protections form, proposed the feasible mountain cave room job practice.The paper research's achievement in Xie Qiaokuang the kilometer deep well mountain cave room excavates in the supports and protections to succeed the utilization. Causes the prompt supports and protections and the dynamic adjacent formation synchronization, the effective control adjacent formation stress the adverse effect which excavated to the construction, simultaneously indicated through the scene monitor data result, knew the dynamic adjacent formation rule, carried on the lamination to excavate, and the prompt choice reasonable supports and protections method, to the kilometer deep well tunnel, the mountain cave room's construction has provided the very good model.