The Role of Logging Operation on Rut Development in Hyrcanian Forest Roads

Journal of Applied Biological Sciences

Mehran NASIRI¹  Mehrmanzar SOHRAB¹  Mehrcedeh TAFAZOLI¹  Seyed Ataollah HOSSEINI¹ 

关键词: logging operation;    rut development;    tire pressure;    pavement;    timber trucks;   

DOI  :  

学科分类：生物科学（综合）

来源: Nobel Bilim ve Arasirma Merkezi/Nobel Science and Research Cente

【 摘 要 】

Inthisstudyaroadwithoutmaintenanceandrepairingoperationonpavementlayerwasselectedtoinvestigatetheeffectsofforestloggingondevelopmentofruts.Forthispurpose,therateofrutareaanddepthonpavementlayerwasdeterminedbeforethepassageoftimbertrucks.Aftertheloggingoperations(7monthslater)theareaanddepthofmarkedrutsweremeasuredagain.Resultsshowedthattherewassignificantdifferencebetweenthebeforeandafterloggingoperationsfordepthandareaofrutsonpavementlayer.Therutdepthandareaincreasedwithdecreasinghorizontalcurveradius.Wefoundsignificantdifferencebetweenrutdepthinhorizontalcurvewithradiusmorethan30mandotherclasses(P<0.05).Alsotherewassignificantdifferencebetweenrutareainhorizontalcurveswithradiuslessthan22mandotherclasses(P<0.05).Centraltireinflation(CTI)systemandradialtireswithlowtirepressurecompactscanbeusedinsecondarytransportationofwoodtoavoidingpavementruttingandcompaction.

【 授权许可】

Unknown