Test And Application Of Stress Transfer Law About Anchor System

Bolting Technology at homeland and abroad has experienced a long history of development, and made a large number of results. Currently, bolting technology in China has been widely promoted and applied, has become the primary means of supporting the mine. Bolt anchoring system of the research on the development of supporting technology has implications. Through laboratory testing, computer simulation, orthogonal regression analysis and other means, the stress on the anchor system to pass laws to do some research and made some conclusions.Anchoring system through the establishment of slip at the interface debonding model of stress transfer anchorage system a theoretical analysis of shear stress obtained distribution anchorage system theory analytical solution. Having obtained the main factors of the stress transfer rules in anchoring system.Using the testing methods of laboratory, the stress on the anchor system had been studied to pass laws. Discussion of the bolt, anchoring agent, and rock in the anchor system, the shear stress between them distribution size, as well as the trend of shear stress. Analyzing the main form of bolt failure.Stress transfer between the anchorage system of bolting is also very important, In this paper, through the FLAC2D software, considering the bolt diameter, hole diameter, anchor material, anchor length, and anchor distance these five factors on the anchorage of stress transfer between two systems, the orthogonal simulation test, and simulation results are orthogonal regression analysis, a detailed analysis of these five factors on the anchorage of stress transfer between two systems, and has worked out the orthogonal regression equation, which is that the shear stress distribution between two anchorage systems.This paper makes theoretical analysis for anchor, anchor design and calculation, field anchoring technique, the specific program of raising the level of support to provide a reference, in order to better technology has made the anchor more significant economic benefits.