Study On The Model Experiment Of Soil Anchor

As an important means in the anchoring engineering,soil anchor had already be used in the slope engineering,foundation engineering and anti-floating engineering and so on.At the same time,soil anchor became widely use attribute to the rapid construction of project,the light and cheap of equipment,the simple of technique and the cheap of Construction.But as a result of anchor working conditions(rock mass and soil) complexity and not determinism,he effecting mechanism about the anchor is unsure.Considering the particularity of the the anchor,we conseder the model experiments is the most effective s researchtechniques.During the study of anchor carries on positively,investigating the reason why anchor is failure and analysis the measure how provent the disease of anchor could supplement the research of the anchor.At first,the article study the anchormechanism theory of existent Anchor mechanism theory and summarize six kind of methods of how caculated the inner-force of anchor,which emphasize on studing the reinforce mechanism and caculating inner-force.Then,the article introduced the design and the testing.The experiment main studies the inner-force of group anchor how destribute in isotropicsoil body and observes the changing of inner-inforce of anchor under the water-injection,then collect the data and analysis the slope stress.Using obtains the data,the articl also protrat the strain figure about half-length bonding anchor,full-length bonding pull type anchor and pressure type anchor and emphasize analyse the Strain to idem anchor on the end of anchorage segment,slip surface and slope.Then draw the slope stress depend on the data in the pressure cell.After analysis the strain figure,the conclusion as follows:the maximum strain of the half-length bonding pull type anchor exsist in the slip surface and free end,the strain become lessen from the slip surface to the end of anchorage segment;the maximum strain of the full-length bonding pull type anchor exsist in the slip surface,the strain become lessen from the slip surface to the free end and anchorage segment;the axial strain of pressure type anchor is uniform exist in the core after analysis the strain figure; After analysis the strain exist the slip surface to pressure and pull type anchor,the stress of anchor is composite component include draw,bend and press,which is complex.Compare to the strain exist in the end of anchorage segment,slip surface and slip,pressure type anchor had preferable compatibility than pull type anchor,which could exert the action of every anchor in the whole system;we also had the conclusion that the slope press of reinforced compound-slope body is influenced by the spacing of anchor,load case and time.Analysis the failing form and reason of anchor on the basis of the experiment and raise the measure how provent the disease of anchor.This stuty in the article was supported by the Traffic Science and Technology of Shan'xi province(Authorized number:04-10K).