| With the development of building in our country recently，Geo-anchor, animportant branch of geotechnical engineering, has been applied widely in theconstruction projects such as slope,dam resistance, foundation pit, bridge, tunnel andunderground chamber, playing a role of anti-capsize, anti-slippage, anti-float and soon. Having an important effect on improving the strength and stability of rock and soil,and on maintaining construction safety and long-term stability of foundationstructures, Geo-anchor has become the most economic and effective technology ingeotechnical engineering. Although it has been widely used in practical projects andhas made a series of achievements in anchoring theory, the knowledge of anchoringmechanism is not in-depth and the actual application level of engineering is far aheadof that of theory study, which leads to a lot of challenges to scientific research andengineering technicians.Combining with the laboratory experiments, this paper conducts a study on themechanic of tensile type anchor and achieves some meaningful results as follows:1.Respectively based on the theory of elasticity of load transfer method, Kelvindisplacement solution and Boussinesq displacement solution, this paper combines theactual working state of tensile type anchor, gains the elastic solution of sheeringstress and axial force distribution respectively, and analyzes their sheer stress andaxial force distributions. This paper also makes comparative analysis of the differenceof the three theories and gets comparative results and discusses the influencing factorsof third theory.2.According to the actual working of tensile type anchor and indoor simulationexperiment, this paper obtains a valid test data from the first and second interfaces ofthe anchor, analyzing the force station of all tensile type anchor rod experiment.Comparing the experimental data with sheering stress and axial force theory, thispaper gets the third theory which conforms with test data exactly by means ofvalidation. |
PDF Full Text Request