NGHIEN CLfU - TRAO DOI MO HINH HOA CAC CH£ DO LAM PHANG DAM BAO KHONG GAY RA CAC KHUY^T TAT D A N ^ K^ COA B i MAT BE TONG MODELLING AND SIMULATION OF THE VIBRATORY ROLLER TO ACHIEVE THE QUALITY OF CONCRETE SURFACE Huynh Cdng Ldn, Nguyen Khanh Duy, Nguyin Tin Danh Khoa Co khi, TrUdng Dai hpc Bich khoa, Dai hpc Qudc gia TE Hd Chi Minh T6MTAT Mdt trang nhang vin de qudn trgng h-ang thi cdng dudng bi tdngxi ming dd Id dd chdt vd phing eug mat dudng bl tdng xi mdng sau dim Hiln nay, cd rit nhieu phUdng phip lim chgt vi Idmphgng mat dudngti-ongdd, phUdng phdp ddm true ldn Id phUdngphdp dUdc dp dungd nhilu nU)c trin thl gidi Tuy nhien, d nudc ta vile nghiin ciu, Ung dung logi cdng nghi niy thi cong bl tdng cdn khd mdi Vi vdy viic nghiin ciu thdng sd may vd thdng sd ldm viic cia bd cdng tdc ddm true lin phi hdp vdi dilu kiin thi cdng vd vdt lilu dtirongnddc Id rdt cin thia Ndi dung bai bio Id tap trung vio xic mnh nhiing thdng so cd bdn cia bd cdng tdc nhU: Tin s6 vi biin dao ddng life klch thick vdn tic quay vd vdn toe tinh tiln cig trdng lu, nhdm ddm bdo chit lUdng be mat bi tdng sau ddm TH khda: Ddm be mat, ddm true Idn, dudng bi tdng xi mang biin dd rung tdn sS rung ABSTRACT One ofthe importimt issues in the construction af cement concrete road is density and flatness of cement concrete pavement after compaction Currently, there are many methods for compaction and surface compaction, including the vibratory roller which is the method applied all over the world However, m our country the research and education of this technology in concrete construction is relatively new So the stiidy af machine parameters and working parameters ofthe vibratory rollers which smt the constiuctions in Viehmm is essential Contents ofthe study was to focus on identifying t''^bds,cparametersafthevibratgtyraller,suchasfrequencyandamplitudeofaseillation.fgrce,velocity and velocity rotary of roller dnim to gchieve the quglity of concrete surface vibratioT^°'^' '^''"''"""'°" ""f""'- ^'•'"•'"'"•^ ™'fers, cement concrete roads, amplitude, frequenc ISSN 0866 - 7056 TAP CHl CO KHl VIET NAM, Sd nam 2016 www.cokhivietnam.vn NGHIEN CO'U-TRAOeOi LGIOITHIEU l,r™„ ? ' ' ^ '^ °*' ^ '""^ "' " ^ « ('^TXM) li mpt yiu td quan Irongttongviec danh gii chit i S h d d l i ™ ? , f ^ ^ J ? ' - ^'° • ' ^ '""^ ^ ^ ^ ^^ T ' ^ ^ ««« ' mat dutef a d r a l t l t n r r * ' " " ^ "^-S P'!"™^ phap lie cat -ttiunghilm.dupe ban hanh nam 2011, di dua heu ehl danh gia mat dudng bang phuong phap ric cit theo Bang Bdngl rieuchiddnhgig(chiiusdulmngbinhcdulrucvrmd)cuam( ' rdc cdt {1 J Chu thich: V la tic dj chay xe thuc tl cho phepfrendudng „a ,,• ^^°^\'\^^°/^'! =tain Qudc gia TCVN 8865: 2011, mat dudng d td - Phuone nhin t^TtZ^^-'T'f^'^'''^'''''^'^''^''''^'"''^-'-^ oua tieu chi danh gia chat lupng mat dudng nhu sau: na™ „• t v r * ^"^^ '^^ '*™ "'*• ^ " " " ^ S BT nhua vi BTXM nghiim thu vdne ctdut^(T?^1,«V'c^'?™r''°^ c p uuong (11- VN 4054, TCVN 5729) thoa man yeu eiu quy dinhttongBang ''i"S2Tiiuchlnghiemlhudgbingphd„glhegIIlJddivdidudngxdyan,zmdif21 Loai diriyng Buimg eao tic eip 120, d p 100, d p 80; dudng o td cin 80 I Budng cao lie d p 60, dudng to cip 60 IRI vlu eiu fm/kml 1R1