Effect Of Anchoring Angle On Shear Behavior Of Anchored Joint Surface

There are a lot of joints and faults in the rock mass.The complex mechanism of action of these rock masses brings a lot of obstacles and risks to the design and construction of rock mass support engineering,which can correctly recognize the reinforcement mechanics in the joint effect of determines whether we can meet the engineering requirements very well.Bolt support method has been the engineering Partner favored by engineers since its birth,which also plays a very important role in jointed rock mass.However,comPared with developed countries,China's research on anchor joints theory is still relatively lacking.Anchor Anchorage angle is a problem that needs to be considered in the initial design.It has a very important influence on the shear performance of the joint surface and even the stability of the entire rock mass.Therefore,this Paper takes anchor anchor angle as the breakthrough point,systematically studies the shear mechanics characteristics of anchor joint surface and related numerical simulation methods,and focuses on the important role of anchor angle in it.At first,this Paper theoretically analyzes the anchor bolt joint surface and rock joints on the shear performance of their mechanical properties and deformation characteristics,pointing out that the destruction of the anchor in the joint bolt type mainly hastwo kinds,namely bending yield and shear yield,and the contribution value of shear strength of joint surface is calculated and analyzed based on the axial lateral action ofanchor rod in this Paper.Considering the wide applicability of Flac3 D software to geotechnical engineering problems,based on the above theory,this Paper studies the effects of several different factors on the shear properties of joints.The results show that Anchorage angle is the most important to increase shear strength of joint surface.Based on the reinforcement effect of anchor bars on the shear strength of anchor joints,this Paper discusses the reinforcement schemes of single side sliding and double side sliding based on block theory.A numerical model is established to verify and analyze the concrete project Anchorage design.Finally,a concrete project example is given to support the bolt design.In addition,in the course of the research,this Paper finds that the joints are often irregular and random in practical engineering.Therefore,if you want to truly understand the internal mechanism of joints,you need to have a better means of simulating the joints network.Therefore,this Paper is guided by block theory and Monte-Carlo theory to explore the method of numerical simulation and obtain a preliminary flow chart for programming.