Study On Experimental Platform Anchoring Characteristics Of The Test And Its Application Based On

This thesis analyzes the anchor bolting and load transfer mechanism at home and abroad are summarized and failure mechanism. Based on a theoretical analysis, laboratory model test and measurement field applications such as research tools. Bolt anchoring mechanism and its bearing on the performance of the in‐depth study, for the effective protection of bolting roadway has important theoretical and practical significance in the security services during the period. The main contents and conclusions are as follows:1) Field-based resin bolt anchoring environment, a new self can bolt drawing experimentalplatform, the paper is loaded using the new structure and function of static load test platformwas introduced, and the description of the test procedure.2）By doing anchor bolt pullout test, get the anchor bolt axial force and shear stressdistribution curve, and theoretical analysis to study the distribution characteristics of axialforce anchoring section anchor body and shear stress, has been under the same conditionsanchoring holes The ultimate bearing capacity of the anchor bolt diameter on stressdistribution and the mechanism of anchoring section.3）With a diameter of20mm and18mm bolt becomes confining pressure tests been done in0,0.9MPa,1.8MPa and2.7MPa under confining pressure static load-displacement curve,maximum anchoring force under different conditions of confining pressure and residualstrength, and calculated the length of the next four plastic damage confining pressure, thestudy on the anchoring mechanism confining pressure affect the ultimate bearing capacity.4) Combined Guizhou Huo—Pu colliery213crossdrift site supporting practical andexperimental results,213crossdrift of support parameters to optimize the design. Field test showed that: rock grouting to improve the conditions and raise confining pressure on surrounding rock stability enhancement roadway is very favorable.