JP^ KHOA HOC VA C A N G NGHE MO ^ C DINH SONG CHAN DONG KHI NO MIN KHfll THflC THAN LO THI€N GflN KHU DflN CU* TS PHAM VAN HOA - Trwdng Dpi hgc Md-Dja chat KS NGUYEN SY HI$P - Cong ty THHH MTV Khe Sim muc dp eho phep vdi sy anh hudng nhd nhit Tong quan din cdng trinh vd ddn cu xung quanh, kilm soat Chan ddng gdy nd Id mdt vln de mdi quy md vg nd vdi quy md chip nhdn duac cua md trydng ddng lo nggi nh&ng nam gin day d cdc nhung khdng anh hudng nhieu din k l hogch san md Id ttiien ndi chung va md lp thien khai thdc than xudt cua mo Ngodi ra, nghien cuu cung da tiln ndi rieng Cdc tdc ddng nd gdy cdng tang hdnh phdn tfch moi quan hp gi&a cdc ky thudt Idn cdc md tdng san luang, bd md tiln gdn khoan nd, trinh ty khdi n l vd cdc ngudn gdy din bien gidi cudi cCing tren mat dat va vay cdng chdn dpng tai khu vyc ddnh gia tiln gdn cac khu vyc dan cu Anh hudng cua ehan Mdt thyc t l Id sy chu y va phan &ng cua eon dpng nd lam tdng su lo nggi cQng nhu sy xung ngudi vdi chdn dOng nd tgi mdc dd thap han dpt cua cdng tae nd khai thdc md ddi vdl ddn cu cac ngudng gdy hu hgi Mdc dp va thdi gian tdn tgl ldn can Mge du nhidu md lp thidn da chtJ y din vipc cua chdn dpng no Id ylu td rdt quan trpng d l gdy giam thilu nhung anh hudng eua chdn dgng n l phan dng cua ngudl vd cdng trinh Chin bdng cac bi$n phap khac nhau, nhidn qud trinh no ddng nd thudng xay thdi gian rat ngan van cdn tdn tai d m&c nhdt djnh cdc tdc ddng d i n ngdn vd cdc vg nd san xudt thdng thudng thi cd hai ehan ddng, sdng dap khdng khi, tiing In, chin dpng keo ddi khdng qud gidy Phan ung dd bay din ngudl vd mdi tnrdng xung quanh cua cua ngudi vdi chdn ddng nd bdt dau vdl tie dO Phuang phap thdng thudng de kilm sodt ehan dao dpng nen ddt khoang 10 mm/s vd tdn so dao ddng id gidi hgn lup-ng thudc nd tuc thdi mpt dpng ddng cQng mpt vai trd quan trpng Nhu vdy, dyt n l hogc mdt gidl han thdi gian vl sai tdi kha ndng gay hu hgi chin ddng n l cd t h l dya ms [11 vd qua gidi hgn toe dp dao ddng ndn dat vao tdc dd dao dpng nin ddt va t i n sd thdp cua cyc dgi phg thudc vdo khoang cdch Bdn carih dd, sdng chdn dpng Kha nang gay hu hgi d tan sd dao cac ylu to anh hudng khde nhu quy md vy nd, dae ddng thdp (40 Hz), ddc bidt tdc cdng trinh cdn_bao ve, sy edng hudng sdng ehan dgng cdng hudng tan so ty nhidn t& 5-^16 Hz dOng, anh hudng cua thdng s l n l min, cQng Bang trinh bay tidu chuan gay hu hgi theo tdc dp phai duyc dua vdo xem xet tiln hanh ddnh gid dao dpng nin ddt cyc dai PPV (mm/s), t i n so (Hz) vd dua cdc giai phdp nhdm giam thieu chin theo ede ttdu chuin RI8507 cua M? vd ttdu chudn dOng Nhipm vu chinh nghidn cuu Id tgp DIN 4150-3 cua CHLB Due trung vao vipc ddnh gid d l kilrp sodt ehan ddng nen dit cue dpi vd tin so dao dgng len cdng trinh S^ng Tieu chuan hw hai theo tic dao dong I ^ ^ P * ' T i e u chuan Rl 8507 (lUI?) ^ , ^ ^ PPV, rorti/s * s ;.',• Conq trinh