Deep Mining Rock Roadway Surrounding Rock Deformation And Control Technology

With the rapid economic development, the production of coal in the social life ofStation increasingly important position.But coal mining face more and more problems,the high prevalence of deep roadway stress, high pressure water, soft rock and otherconditions of roadway safety and working conditions have caused a negativeimpact.Today the mines generally use bolting system, into the application of severaldecades, technology matures. Various combinations of support measures aresuccessfully applied deep roadways, and achieved good economic benefits.Statistics through the mine field observations, JiuLong mine-450m below therock roadway will have a significant nature of soft rock,-700m haulage appear brokensurrounding rocks swelling, joints and fissures are well developed, etc.,Supportingroadway deformation after severe deformation capacity, long duration.Normalroadway transport, pedestrians under great threat,Every year requires a lot ofmanpower, material for renovations, with little success.-1000m horizontal chamber in addition to a soft rock roadway problems,significant floor heave plate, between two distinct shrinkage, resulting in pump roomand substations not work properly.Issue was raised by a large number of long-term theoretical research and fieldobservations, grouting proposed comprehensive management of technology,groutingon the roadway, the combination of the use of other forms of support.In-700m haulagecomplex geological areas of governance established experimental section focuses onthe high stress and affected by mining under the roadway measures.Afteraccumulating experience, for-1000m horizontal chamber problems for processing.The use of modern computer technology to conduct experiments on the roadwaysimulation studies prove Grouting for changing roadway conditions play a very goodeffect, with other forms of support to meet production safety use. Combined with theactual situation, for engineering practice, and had long-term data observations.Contrast the situation before the roadway, to meet safety requirements for use.Grouting technology improves the comprehensive management of broken rockmass integrity and stability, effectively reducing the roadway crushed rock cave,spalling caused by security incidents kick drum and floor phenomena, in order toensure the pedestrian roadway, transport, ventilation and other safety aspects of thefoundation.Through this practice, broaden their horizons, an increase of knowledge, themore determined to work hard to master their professional knowledge and practice,for the later work laid a good foundation.