4, CFIUONG1 - } ., __Kli{r NIEM qHUNG vE vAT LrEU NcHI!N Va vrAv NcHTEN r - KHAr NrEM CHUNG ve quA r4Nn NcUEN: . '. .' , il ':'r- . ;'r'::i - 't" NghiQn ld. quri tririlr lim giarn kfch thu6c cta hgt ttr kich thudc ban ddu d6n kich thu6c sri clpng " ,;:;;-1," . ''' ':,t 1,;: :". 'r',;':i.: . ,.'. : Theb.y€u c.ly cira c6ng nghQ, llat vat liQu thudng phni qua nhiAu cdng clopn nghidnt6ti6pnhau,nhutrongsdnxu6tximdng, t '**",i- "^. . L;^,.,i. "' .,.,,i;s ;r1,",1 ,i ,.'r,*-" , ,/*tt:!un hgt :il;lli8ilT;1ant:t'o,'otttT# " Tll5o ftp l*r ctti , / - xllien nlr6 : 5 - 40rnm sari phAru iighi€n,( ^ . .i . ., ,,. :, ;r : . phdn2 lo4i :, \rl tgh!|nbQt: -nQt 1|;0 : 5 -O.lmm, :, . :: 1 l, : !9-t ni{ , 0.1 - !,05nln .,' " ''',.,.i'i ', ; l,u' ,i,' ii: :,,,. 'i , ., ,:t-i , il - CAC TfNn CI{AT cO BAN CUi VHT LIIiU NGI{IEN : EQbAn,eQ.gion,finhT1iver.tJe,in'c.iah?t ' .' ' , , . ,1 - E0 bdn : dfc trung cllo lhi n[ng oh5ng .!16 hty cluf i tdc :l';ng cua ngo4ilgc. ' .', ':"''- i-:i:i.l::''" - vd rsr=F (MN/m') r i d i ,- Tny tltVQr vio on . Plfn thinh c6c loai: : d*c tnmg:cholkhh n6ng ctra v{t"li*u lim mOn bO pnAn"qong lug.ng lnhur rfiau J'ir, 1kg;,'h 4t c6 kich phArn. \$ 3 tv - yEu cAU cHtT Lr-rONG cuA oA DRM, s0r, cAr xAy oeNG: l- D6 dirn. s6i diim: I Nghi€n vO d6 thi€n rfiiOri + d6 d6m ,, , .l Nghidn vd d6 cuQi, d5 s6i + soi dim 5 - 10mm 10'- 20 mm 20 -40 mm 40 -7}rirm-tn . lr , t 40,- 80 ftm '80 -'izo t ii' Phdn logi : Bhng 1,2 1 , ,, L (vdi cong trinh ) thriy lqi) ( Vobe aey nh6 rfi6t cria cAu kign BT (ich thu6c hpt l6n nhdt kh6ng quri : j % chi€u dAy cta sAn mong ,i Hpt dgt (a > 3c) khdng qu6,25o/a rheo kh6i lugng. (rrit khi dilng eha d€m dudng sdQ " BAng 1.3 A' ' A I CAt x6y d$ng i . Kich thudc 0.t5 - 5mm. . Do phAn h,iy t.o nhi6n tu d4 (c6tn:iri, c6t s6ng) ho[c do nghiCn rfiAn t4o (c6t nghiAh;. Bing 1.4 C6t rdt nh6 C6t khdng dirng trong XD : f t- { I I .L- ,; i- iii:. ^ c9 ti {iQn > 300 cm'fe i: ldn s6t, 6 s6t, tpp ch61 d4ng cgc hlrrt lqqttg bel S : 10qm kh6ng qv'6 S% him luqng bui, btn S6ng qu62% (BT chiu 6p) h&m luqng bi,ii, btn kh6ng qa63% (BT l,<tr6c) ,' . i v - NANc rugNc i.tcHrnN' l .,1 Ndng lugng cAn dO nghi€n vO rt6 php thuQc vdo : Kich thudc, hinh d4ng hpt Su ohdn b6. x€p ddt cua hat D0 u Hinh d4ng vi tr4ng thdi bA m{t ldm viQc cua .i , i, . il :ttr.:,i]\, 1- Dinh luflt nghiOn I (tlinh luflt m4t phing): m6y nghi0n. , -l ' C6ng.ti6u haod€ nghiLnvQt tiQ4 t! tQ vdidiQntiqh bi mqtmoi tqo ra trong qud trinh nghi€rt. A= K.AF K:hQs6til9 AF : s6 lugng dign tich Ud mat gia t6ng. rt C6ttg ti6u hao d,A nghi1n ti l€ thuqn voi ntuc d0 nghi€n va fi le nghich voi kich thade san plfint nghi€n. 1 Al _i" _d". : Am irn -dn Cdng d€ nghi0n Q kg d6 : A_KR(i-l)Q' ' Dtt + X6e dinh n6ng lugng cAn cl€ t4o ra c6q b0 m{t rhoi do mi6t vO. b6n, dQ gi6n ddrrg nh61 ctia d6 am irlf ggriy ' Ndng luqng dd thay d6i hinh dqitg nhfirtg vQt gi6ng nhau vi hinh th€ vdi thd t[ch vQt nghih hoqc kh6i luqng cua chting. o'V A:E =Kl .V & _tl Az Yz Ltlc'ngl1i?n { lQ bQc hhiit voi diQn tlch ti€t di€n ngan'g ctia vdt. COng d0 nghiOn Q kg'dd : A=K:.Q -+ XAc dlnh ndng lugng cho qu6 rinh bi6n d4ng ddn h6i. -l Dirh luft nghiGn thri ba: Cdng clC ngllien Q kg vd,'li$u : . .r.: in-l - l ::. ,. ,.q',;1 -, - A=Kn- n:2 '. dlnh luqt mft ph[ng n = 1 : dinh luat th6 tich. . :) r '!. vd dong ilnat fila 3- f i,ili; 1 :t,i, , :t;:.: i: r,,,1r:.,,,1:. \ , .:,, sj r,r. u - cAc pHUoNG pHAp NGHGI vA cAc LoAr MAy NGHTEN : 1- f6 hgrp c6c PP trmg ih6yiighiCn 2- i I : li : : . ; b/ M6y nghi6n bQt : Ep vo : , Jdch v.6, D;,x r '-e. uon vg rMi6t vo b v flt, ffi ,%\/ Ifi#k, b 8. Wn ptwon 6l Bttxiip, w,ef*ielu aw Mn. IIinhfi-f,tt&*.&,4tntreytAskle,i<ttt','i CeqdaqdqfnggrddQFdii,criic6a<lciairitdrkhhornhhtlu ddt+gUlzz i n&folqruatrilrr$Vii rfiits*Fl s,bdl4So' ;,E,'fcio s&rb*n*pttgr**a o,ftl&ital t t*txl* l:# nat Mavs,nstttdwnsd ,q0 sltwen dgng ld| ttlJil #if,l,i blttgf fr#httil ,'.r,,gw'ar,ado,* @g; d) Q,ut das ehiw*a tt\lL# Stte [gl]4 Il{tltt'i ai t#A*t y h! &:g,i Ji;y i;,i:,1,i:,;,,f fnr,, . 4, CFIUONG1 - } ., __Kli{r NIEM qHUNG vE vAT LrEU NcHI!N Va vrAv NcHTEN r - KHAr NrEM CHUNG ve quA r4Nn NcUEN: . '. .' , il ':'r- . ;'r'::i -