Dynamic analysis of the space growth of Separate Layers of Overburden
The method of controlling of subsidence by grouting in the space caused by the bed separation of the overburden in a mining area is economic and rational way that can acquire remarkable effect in controlling the strata. The law of production and development and distribution of the bed separation is the basic of theory in implementing the grouting in the space caused by the bed separation. The location of the layer contact face inside the overburden is established by the difference of bending rigidity of strata and the contact face is simulated by the laminar layer contact element by considering the characteristics of the expansion of fractured rock-mass, the invisibility and discontinuity of movement of overburden and distribution of bed separations. The space-time laws for the rupture, failure, movement of mining overburden and the production, development, distribution of bed-separations is explored by finite element method, and the effect of mining height on the growth height and range of bed separations is emphatically analyzed. The scientific reference is provided for safe implement of grouting in the space caused by the bed separation of the overburden.
Bed-separation Bending rigidity Contact element
ZHONG-CHANG WANG DE-SHEN ZHAO DA-GUO WANG
Key Laboratory for Prediction & Control on Complicated Structure System of the Education Department of Liaoning Province,Dalian University,Dalian,116622,China
国际会议
大连
英文
290-294
2009-10-20（万方平台首次上网日期，不代表论文的发表时间）