Study On Distribution Of Shear Stress In Anchorage Body And Application In Roadway

To the research of Xin ji colliery's drawing roadway's support technology, this article makes use of many systematic research methods synthetically, such as theoretical analysis, computer numerical simulation, the analysis of cross and regression, laboratory experiment, the observation of mine pressure at the spot. etc. By theoretical analysis, we obtained the analytical solution of bolting anchoring agent when the shear stress along the interface on both sides; By cross computer simulative experiment, we get the optimum supporting parameter:According to analyzing the result of cross experiment, we gain the regression equation; By computer simulation analysis, we study the stress distribution of roadway surroundding rock displacement distribution of the plastic zone and the changes of anchor displacement vectors; Use roof bolt separation threshold to test the reasonableness of supporting design. All this provides a theoretical reference to determine the parameters of the scene bolting, in practice, the technology has achieved good economic results.