Mechanical Mechanism And Design Theory Of Shaft Lining Constructed In Subsidence Area

At present, with the development of the national economy increasing the demand for coal. Most mining area in China has entered the stage of deep mining, the high stess soft rock is becoming more serious, become a big problem restricting the mining industry, coal enterprise development, has aroused widespread concern in academic circles. Especially for the deep shaft, in high geostress ingate wall stress such as improper design and construction, often result in borehole wall instability,a damaged retaining structure, serous person but also endangers the ingate on segment lining structure safetyThis paper taking AnHui HuaiNan XinJi group XinJi west during an horsehead door wall optimization support mode for the engineering practice, on the basis of inheriting existing wall supporting theory and technology, through the field observation and laboratory testing, theoretical analysis and numerical simulation research method, etc. XinJi are analyzed in detail on a mine during the horsehead door force of the wall and put forward the scientific and reasonable optimization scheme, Studies have shown that it is feasible to use of flexible sliding wall structure of the complex geological conditions, New wall structure in additional longitudinal force and peripheral strata deformation conditions can produce a buffer, adjust the pressure redistribution effect, thereby protecting the borehole wall. Ingate at the wall structure of reference to solve the complex geological conditions deep shaft at the shaft wall damage.