NGHIEN CUU GIAI PHAP GIAM ANH HUONG CUA RUNG DONG DOI VOI CONG NHAN VAN HANH MAY KHOAN OA

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NGHIEN CUU GIAI PHAP GIAM ANH HUONG CUA RUNG DONG DOI VOI CONG NHAN VAN HANH

MAY KHOAN OA KHI NEN

ThS. NGUYfiN ANH TUAN, TS. TRIEU QUOC LOG, KS. LUU TIEN MANH, KS. DINH THE DLfG, KS.

N G U Y £ N

SY KHANH LINH

Vien Nghien ciru KHKT Bao ho Lao dong GS.

TSKH.

N G U Y £ N

VAN KHANG

Truang Dai hoc Bach khoa Ha Noi

Tom tit: Cac thiet bi may mdc cam tay diing trong SX nhu: May khoan khi nen, may biia khi nen, may mai cam tay may cua xich, may van bu /dng, dai 6c v.v.. trong qua trinh lam viec thudng gay ra nhOng rung ddng ign va anh huang true tiep tai sire khoe eiia ngugi thao tac sir dung may tham chi gay ra nhUng BNN ma dien hinh la benh ngdn tay trang do rung (VWF - Vibration induced White Finger).

Bai bao nay trinh bay mot so ket qua nghien ciru buac dau ve cac bien phap giam anh huang cua rung ddng doi vai cdng nhan van hanh cac thiet bt cam tay trong dd chii trong den loai may khoan da khi nen, bang giai phap sir dung bd tat chan ddng luc ket hgp vdi sir dung gang tay chong rung.

Abstract: Hand - held equipment or tool: chipping tools using in production such as chipping tools, jackhammers, grinders, chain saws, reveling guns, etc., are usualy caused hight vibration and directly

influenced to worker's health. Especially it may be in their operation conduced to occupational disease as VWF (Vibration induced White Finger).

This paper presents some initial research results on anti_vibration methods by dynamic damper com- bined together with anti-vibration gloves for worker who using and operating hand - held equipment or tools.

In that, it's put a great consideration of the chipping tools and jackhammers.

I. MO DAU cao su,...), tuy nhien do khdng ed eae dung cu, PTBVCN De tai da tien hanh khao sat thue trang sir dung may ^^uyen dung nen viee phdng tranh dd khdng dat hieu qua khoan khi nen tai mdt sd co sd khai thae da dien hinh d ^^^ ^°^^ ' ^ ^ ° " -

mien Bac va mien Trung, ddng thdi da tien hanh do dac, n. NGHIEN CUU CAC GIAI PHAP GIAM RUNG phan tich cac thdng sd rung ddng cua may khoan khi nen |,_.| _ j^-y ^^^^ ^^ ^^ |^ jj^^y--j.

•.,.,, /• , ^ Tren CP sd do dac khao sat thue te,de tai da tien hanh - Tat ca cac may khoan khi nen dung rong khai thae . , , - u- u ^'u ' u - * ' ,.:.; .V,AW n,„on i,h;

, , , , , , ^J.^^,.. - . -,- , . . . . xay dung mo hinh CP hoe cua he tay ngupi-may khoan khi mo mo than, mo da deu eo mue rung dong an ruyen den - ' - .u---* i- - u ,^ .'•u u- I„„,A'., ^^n^

,,,, .. . '.. - , . , ^ ,.... ,.- .. nen, va thiet lap cac phuang trinh VI phan chuyen dong CO the nguai cong nhan van hanh vud nhieu an so voi ,, - - u- u j j - n/i- i,- k - i ^ .,A(.,„^^m ... , ? . ^. ,, „ ; ^ . , ,•, ,L- - ,• theo 4 mo hinh dao dong: Mo hinh may khoan CO tay cam

leu ehuan cho phep. 1, 2 Cac may khoan khi nen hien - , -i.-u '• ,i. • •• J - . .kx„^

' ^ U-- u-'. - --. • J T ^ .. ? ' each rung, mo hinh may khoan CO su dung gang tay chong dang su dung hau het eo xuat xu u Trung Quoc va pho . , . , - ,, •• A U-.^. k-- 2->,„i,,^v,i , . . , , , , ; ^, ,, , , , . . ^ „ ^ ^ , ,,„^,„ ^ rung; mo hinh may khoan su dung bo tat chan dong lue va bien la loai may khoan ky hieu 7655 va Y018. . ,, , . ,, , , ,'.-^, •, .• ; , ,.„„

_ , : ^ . 1--. -^j ,1.- • , . - ; . . mo hinh may khoan su dung ket hap tay cam each rung- - Thong qua eae ket qua do, kham eae benh ve runq . , ... ,^; k-- A- \.

,. J - . . . - - k- k - Ik ik- . ,• gang tay chong rung - tat chan dong lue.

dong doi voi cong nhan van hanh may khoan khi nen deu „ I, ^ „• u- l • ,u ' -t ^A-^ ^A,.^ r„nn ,, - ^ . , , , , ^ , k n - k - -- I - . . . 11.1.1. Mo hinh may khoan co tay cam cach rung thay rd cac anh hudng nhu: Benh ve rdi loan van mach, rd'i

loan than kinh, tdn thuong ca - xuang - khdp, nhire dau, giam tri nhd,...

(md hinh 1):

Phuang trinh vi phan dao ddng ed dang:

n- k- - k- k j - - ' . k - k- k- , M y + B y + Cy = F (1) Cong nhan van hanh da eo y thuc phonq chonq an -r .• ' ' >

truyen ciia rung ddng den cp the (sir dung gang tay lot day

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KHOA HOC,

CONG NGHE - CHUYEN GIAO

JL

Y I i'"'. I hi *"i I r i b ,

ti),

..^"TC

Jr«.

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i i

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Hinh 1: Mo hinh 1

^ i "'t I

^ I Yh I

•ScJ ^-ul ^ ly

111,

> o

"W„

r

—

'»k

/777m Hinh 2: Mo hinh 2

M m,, m„

m.

0

(2)

c =

0

0 -b„ {b,,+b,) -b, 0 0 -b, b,

k/+C,;,) -C,„ 0 0 -c,A ( f , „ + c j - c „ 0

0 - c„ (c„ + c,) - c, 0 0 -c, c,

(3)

/ = [0 /(/) 0

FJ

(4)

(5)

//. 1.2. l\/ld hinh may khoan co tay cam each rung kit hctp yd/' gang tay chong rung (md hinh 2):

Phuang trinh vi phan dao ddng cd dang:

My + By + Cy = F (6) Trong dd: .

M

nil

(7)

C:

B =

K -b,„

-K k+h) -b, 'b, k+b) -b,

-b, b.

(8)

F = [0 fit) 0 0 F„f

(9)

(10)

7/2009 BAO HO LAO DONG 25

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//. 1.3. Mo hinh may khoan co tay cam each rung kit hap vdi bp tit chan dong li/c (md hinh 3) Phuong trinh vi phan dad ddng ed dang:

My + By + Cy = F Trong dd:

1 (11)

5

1"

M =

^ ' " ' 1 ' ^ l > , l ,

>l

'"k ' 4

'",,„

(•;•,,+c,„) -<",/, - '•,/, (c„, + f , . )

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7777777

Hinh 3: Mo hinh 3

'•ri,

K -K

-b.. [b„+b„„+b,) -b„„ -h, -b,„. b„„

-b, b,

(13)

F = [o /(/) 0 0

FJ

(14)

(15)

//. 1.4. Mo hinh may khoan co tay cam each rung ket hop vdi gang tay giam rung va bp tit chan dong life (mdhinh4):

F,.

i ' " I , I

^ '*' >,r

Phuong trinh vi phan dao ddng cd dang:

My + By + Cy = f Trong dd:

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- , — I 1^ i T u ; i -*-

''•"'2 riiivi. fXt T

f\ "hill 1 I ^ M

•V" I

•ill

i "

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^•1.1 ^ h , „

E

^J

i n .

>.lX^

^•<i

7777777 Hinh 4: Mo hinh 4

k , + '

- f „ 0 0 0 0

\b.„

-b,„

0 0 0 0

J

(6„

(c„

-^,

+b -b„

0 0 0

- C,i,

+ c -c„

0 0 0

,) ,)

[b,

0 -c„

(t-,. +<•,./:+'•

-^,*

-^«

0 0 -6„

+ ^.+*J

-b,.

-b.

0

0 0

) - .

' • , *

0 0 0 0 -b,.

b,.

0 0

0 0 -c^

0

k.+ '•-)

- f ,

0 0 -b^

0 (*,+*-)

- 6 , 0 0 0 0 -c

c, 0 0 0 0 -b, b,

(18)

F = [0 fit) 0 0 0 FJ

(19)

(20)

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KHOA HOC,

CONG NGHE - CHUYEN GIAO

//. 1.5.. Mo phong so cac mo hinh giam dao dong trong van hanh may khoan da khi nen:

Hinh 5: Mo hinh dao dong va ket qua mo phong may khoan da khi nen

Thdng qua dd thi Hinh 5, so sanh mire dao ddng tai tay eiia ngudi van hanh may khoan khi nen theo md hinh ly thuyet cd the thay, khi sir dung rieng biet tUng bien phap giam rung nhu: Gang tay ehdng rung (md hinh 2) hoac bd tat chan ddng luc (md hinh 3) da cho thay hieu qua giam rung kha tdt; dac biet khi sir dung ket hpp ddng thdi ca gang tay ehdng rung va bp tat chan ddng luc [md hinh 4) thi hieu qua giam rung lai cang cao hon.

Vdi viee tinh toan md phdng bai toan sir dung eac bien phap giam rung mot each chinh xae se lam co sd dung dan ve mat ly thuyet cung nhu viec thiet ke cac co eau giam rung lap cho may khoan khi nen trong thuc te.

11.2. Nghien ciifU thifc nghiem:

11.2.1. Nghien euV bp tit chan dpng li/c lip cho may khoan khi nen [xem cac Bang 1 va 2):

De tai da tien hanh, tinh toan va thiet ke bd tat chan ddng lue cho may khoan khi nen, ddng thdi tien hanh do dac, danh gia hieu qua giam rung khi sir dung bd tat chan ddng luc lap tren may khoan khi nen trong phdng thi nghiem va tai thuc teSX.

TU nhOng ket qua do dac danh gia trong phdng thi nghiem va trong thue te ddi vdi bd tat chan ddng luc khdng can trong Bang 1 va 2 da cho thay hieu qua giam rung tay cam may khoan khi sir dung bd tat chan ddng luc la rat rd net.

Bang 1: Ket qua danh gia

Phuang

do

Phuang ngang

Phuang dirng

Loai tat chan dpngluc Tat chan 1 Tat chan 2 Tat chan 3 Tat chan 4 Tat chan 1 Tat chan 2 Tat chan 3 Tat chan 4

hieu qua bp tit ehan

dpng li/c khong can

trong phdng thi nghiem

Gia tri gia too rung (m/s^)

Khong co tat chan Lani

71,60 66,80 60,30 63,10 62,30 64,00 63,40 65,60

Lan2 76,70 64,40 59,50 59,40 65,40 66,20 63,40 65,60

TB 74,15 65,60 59,90 61,25 63,85 65,10 ,63,40 65,60

Co sir dung tat chan Lani

48,50 48,60 48,60 48,50 51,10 53,80 51,30 54,80

Lan2 48,80 48,70 48,80 48,60 55,80 54,10 56,20 50,10

TB 48,65 48,65 48,70 48,55 53,45 53,95 53,75 52,45

Hieu qua giam (%)

34,39 25,84 18,70 20,73 16,29 17,13 15,22 20,05

Bang 2: Ket qua danh gia hieu qua cua bp tit chan

Loai tat chan dongluc Tat chan 1 Tat chan 2 Tat chan 3 Tat chan 4

dpng life khdng can trong thi/e teSX

Gia tri gia toe rung (m/s^)

Khong co tat chan Lani

9,16 9,16 9,16 9,16

Lan2 8,60 8,60 8,60 8,60

Lan3 8,79 8,79 8,79 8,79

TB 8,85 8,85 8,85 8,85

Co sir dung tat chan Lani

8,34 8,28 9,77 6,36

Lan2 7,44 8,17 9,83 8,84

Lan3 7,85 9,64 8,84

TB 7,88 8,23 9,75 8,01

Hieu qua giam (%)

11,00 7,06 -10,13

9,45

7/2009 BAO HO LAO DONG 27

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11.2.3. Nghien cuV gang tay chdng rung Gang tay ehdng rung la mdt loai PTBVCN, ed tac dung giam su Ian truyen eiia rung tdi tay ngudi, khi tay ngudi lam viec tiep xuc vdi rung ddng.

6 cac nude phat trien tren the gidi, viec sir dung gang tay va bao tay ehdng rung trong lao ddng SX rat dupe ehii trpng va da trd thanh nhUng quy dinh hoac quy pham AT- VSLD. Chinh vi vay, cho den nay viee nghien ciru che tao cac loai gang tay va bao tay ehdng rung van dang dupe eae nude tiep tue nghien eUu nham khdng ngUng hoan

"thien.

6 Viet Nam, do nhung dieu kien khach quan nhat dinh, viee ap dung eac loai gang tay ehdng rung cho NLD edn han che, mdt mat nude ta chua che tao dupe loai gang nay, mat khae viec sir dung gang tay va bao tay chdng rung eiia nude ngoai che tao lai khdng phii hpp vdi kich thude tay ngudi Viet Nam cung nhu dieu kien khi hau nhiet ddi ndng am, de gay tinh trang viem nhidm da tay khi sir dung. Xuat phat tU thue te dd, de tai da nghien ciru, che tao 03 mau gang tay chdng rung tuong irng vdi 03 dp cUng vat lieu: 39 shoreA, 50 shoreA, 72 shoreA. Ddng thdi tien hanh do dac danh gia trong phdng thi nghiem hieu qua giam rung ciia 03 mau gang tay chdng rung theo tieu ehuan ISO 10819:1996. [3, 4]

Gang tay giam rung phai dat yeu eau sau:

TRM < 1 . 0

Trong dd: ^^w, Vdi:

TR,.

TRH < 0 . 6

^.ra.--^^^

TR..

- a^ : Gia tri gia tdc tai tay cam [RMS - m/s^];

- a^^: Gia tri gia toe tai ed tay khi khdng diing gang [RMS - m/s^];

- a : Gia tri gia tdc tai ed tay khi dung gang [RMS - m/

- TR^ '• He sd truyen tuong irng vdi phd cao (77^^ ) va trung binh ( 7 ^ ^ , ) .

Qua cac Bang 3, 4 va 5 cho thay:

- Khi danh gia hieu qua giam rung tai phd tan sd trung binh (16, 31.5, 63,125, 250, 400 Hz), ca 03 mau gang (do eirng 39, 50, 72 shoreA) deu dat hieu qua giam rung kha tdt va dat eae gia trj cue dai tai dai tan sd 63 Hz.

- Khi danh gia hieu qua giam rung tai phd tan sd cao (125, 250, 500,1000, 1600 Hz), ehi cd duy nhat mau sd 1 dat yeu eau vdi hieu qua giam rung Idn nhat la 44,85% (d

1600 Hz); eac mau sd 2 va sd 3 deu khdng thoa man tieu ehuan [TR^, < 0.6) niae dii cac mau gang nay van cd hieu qua giam rung dat tU 28,75 den 42,10%.

TU viec danh gia phan tich tren cho thay, trong 3 mau gang ehi ed duy nhat mau sd 1 la dap irng theo diing tieu ehuan ISO 10819:1996. Ket qua nay se la cosdde hoan thien va che tao m i u gang tay ehdng rung trong thdi gian tdi.

III. KET LUAN

Do nhu eau phat trien SX, viee sir dung eac thiet bi may mdc cam tay ngay cang trd nen phd bien, nhat la d eae nganh nhu: Khai thae than, khai thae da, khai thae, che bien gd, che tao ca khi - xay dung, che tao, lap rap d to v.v... Ben canh dd cung phai thay rang viec sir dung cac thiet bi, may mdc cam tay ed mire rung Idn trong qua trinh lam viee khdng nhUng ehi cd chieu hudng gia tang ve sd lupng, pham vi ma ca ve cudng dp va thdi gian tiep xiic rung. Chinh vi vay nhung ket qua nghien eUu eiia de tai ve ly thuyet va thuc nghiem se thuc su gdp phan han che nhOng anh hudng cua rung ddng den sUe khoe NLD, giam nguy ca mac BNN do rung, ddng thdi tang nang suat lao ddng cung nhu tiet kiem dupe chi phi bao dudng, sira chira may, thiet bi,...

HTI<ich thich rung K/dai c6ng

suat

r~3r

Khuy#ch dai Khuygch dai Tay d m g i n

gia t6c kS

1

I I I I

. .

Dac t(nh/t(ch hop Dac tfnh/t'ch hop

MSy phan tich t i n s d

Li/cb6p Hi^n thi

Hinh 6: Scf dd mo hinh danh gia gang tay chong rung theo tieu ehuan ISO 10819: 1996

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KHOA HOC,

CONG NGHE - CHUYEN GIAO

Bang 3: Ket qua do dac, danh gia th&nghiem gang tay chong rung mau Tan

sd (Hz)

•a

(m/s')

awb (m/s') Lani Lan2 Trung

binh

a„g (m/s^)

Lani Lan2 Lan3 TT

1(39 ShoreA)

Ket qua tinh TRsb TRsg TRs

% giam Phd M

16 31.5

63 125 250 400

16,7 16.7 16,7 16,7 16,7 16,7

14,9 7,92 4,67 1,78 0,284 0,041

15,4 7,77 4,68 1,93 0,282 0,0425

15,1500 7,8450 4,6750 1,8550 0,2830 0,0420

13 6,66 2,87 1,29 0,219 0,039

12,9 5,71 3,02 1,28 0,217 0,0457

13,7 6,67 3,01 1,3 0,227 0,0352

13,2000 6,3467 2,9667 1,2900 0,2210 0,0400

0,9072 0,4698 0,2799 0,1111 0,0169 0,0025

0,7904 0,3800 0,1776 0,0772 0,0132 0,0024

0,8713 0,8090 0,6346 0,6954 0,7809 0,9543

12,87 19,10 36,54 30,46 21,91

4,57 Phd H

125 250 500 1000 1600

92,2 92,2 92,2 92,2 92,2

4,86 0,547 0,29 0,2 0,107

4,71 0,587 0,296 0,204 0,106

4,7850 0,5670 0,2930 0,2020 0,1065

2,77 0,367 0,178 0,122 0,059

2,76 0,331 0,164 0,109 0,0579

2,76 0,318 0,173 0,117 0,0595

2,7633 0,3387 0,1717 0,1160 0,0587

0,0519 0,0061 0,0032 0,0022 0,0012

0,0300 0,0037 0,0019 0,0013 0,0006

0,5775 0,5973 0,5859 0,5743 0,5515

42,25 40,27 41,41 42,57 44,85 Bang 4: Ket qua do dac, danh gia thi^ nghiem gang tay chong rung miu 2 (50 ShoreA)

Tan sd (Hz)

3wp

(m/s')

a„b (m/s') L a n i Lan2 Trung

binh

a„<, (m/s')

L a n i Lan2 Lan3 TT

- % giam Pho M

16 31.5

63 125 250 400

16,7 16,7 16,7 16,7 16,7 16,7

14,9 7,92 4,67 1,78 0,284 0,0414

15,4 7,77 4,68 1,93 0,282 0,043

15,1500 7,8450 4,6750 1,8550 0,2830 0,0420

11 7,11 3,44 1,5 0,256 0,043

13,5 7,09 3,46 1,44 0,257 0,0425

13,6 7,24 3,24 1,58 0,262 0,0429

12,7000 7,1467 3,3800 1,5067 0,2583 0,0429

0,9072 0,4698 0,2799 0,1111 0,0169 0,0025

0,7605 0,4279 0,2024 0,0902 0,0155 0,0026

0,8383 0,9110 0,7230 0,8122 0,9128 1,0219

16,17 8,90 27,70 18,78

8,72 -2,19 Phd H

125 250 500 1000 1600

92,2 92,2 92,2 92,2 92,2

4,86 0,547 0,29 0,2 0,107

4,71 0,587 0,296 0,204 0,106

4,7850 0,5670 0,2930 0,2020 0,1065

3,05 0,354 0,182 0,123 0,063

3,13 0,352 0,173 0,122 0,0638

3,06 0,326 0,178 0,125 0,0652

3,0800 0,3440 0,1777 0,1233 0,0641

0,0519 0,0061 0,0032 0,0022 0,0012

0,0334 0,0037 0,0019 0,0013 0,0007

0,6437 0,6067 0,6064 0,6106 0,6022

35,63 39,33 39,.36 38,94 39,78 Bang 5: Ket qua do dac, danh gia thurnghiem gang tay chong rung mau 3 (72 ShoreA)

Tan sd (Hz)

3wp

(m/s')

Swb (m/s') L a n i Lan2 Trung

binh

awq (m/s')

L a n i Lan2 Lan3 TT

0/

/o giam Phd M

16 31,5

63 125 250 400

16,7 16,7 16,7 16,7 16,7 16,7

14,9 7,92 4,67 1,78 0,284 0,0414

15,4 7,77 4,68 1,93 0,282 0,043

15,1500 7,8450 4,6750 1,8550 0,2830 0,0420

14,3 7,37 3,21 1,54 0,266 0,0431

13,4 7,24 3,56 1,65 0,267 0,0432

13,9 7,27 3,52 1,66 0,285 0,045

13,8667 7,2933 3,4300 1,6167 0,2727 0,0439

0,9072 0,4698 0,2799 0,1111 0,0169 0,0025

0,8303 0,4367 0,2054 0,0968 0,0163 0,0026

0,9153 0,9297 0,7337 0,8715 0,9635 1,0465

8,47 7,03 26,63 12,85

3,65 -4,65

PhdH

125 250 500 1000 1600

92,2 92,2 92,2 92,2 92,2

4,86 0,547 0,29 0,2 0,107

4,74 0,587 0,296 0,204 0,106

4,8000 0,5670 0,2930 0,2020 0,1065

3,39 0,323 0,179 0,121 0,0582

3,4 0,326 0,177 0,123 0,0602

3,47 0,339 0,182 0,125 0,067

3,4200 0,3293 0,1793 0,1230 0,0617

0,0521 0,0061 0,0032 0,0022 0,0012

0,0371 0,0036 0,0019 0,0013 0,0007

0,7125 0,5808 0,6121 0,6089 0,5790

28,75 41,92 38,79 39,11 42,10 (Xem tiep trang 32) 7/2009 BAO HO LAO DONG 29

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le ngudi hiit thude d eac nhdm nghe tuang duang nhau.

Qua sd lieu trong Bang 4 cd the thay, edng nhan d eae edng doan luyen, luu hoa, ep ed ty le hinh anh benh bui phdi cao han h^n nhdm edng nhan d eae edng doan thanh hinh, KCS va eae nhdm nghe khae.

Tu Bang 5 ta thay: Trong tat ca edng nhan d 2 Cty cao su, nhdm ngudi ed tudi nghe tren 10 nam ed hinh anh benh bui phdi tren phim Xquang cao hon han nhdm tudi nghe dudi 10 nam, tuy nhien d 2 edng doan luyen va luu hda, benh bui phdi vin xay ra d nhdm cdng nhan ed tudi nghe dudi 5 nam.

IV. KET LUAN

- Bui tale sir dung trong SX sam, Idp cao su ed nguy cP gay benh bui phdi cho NLO tiep xiie keo dai trong MTLD ed ndng dp bui vupt TCVSCP - Tudi nghe cang cao kha nang mac benh bui phdi cang tang.

- Trong nghien ciru, hau het cdng nhan mac benh bui phdi ed tren 10 nam tudi nghe, tuy nhien v i n ed trudng hpp mac benh vdi tudi nghe thap hPn.

Tai leu tham khao

1. Nguyen Thi Toan (2006): Hien trang sire khoe ngwai lao dong khai thae va che bien mo Talc H-T Phii Tho, Tap chi BHLD so 11/2007.

2. Le Trung (2001): Cac benh ho hap nghe nghiep, Nha xuat ban Y hoc.

3. Fine L. J. et al. (1976): Studies of respiratory morbidity in rubber workers:

respiratory morbidity in talc workers. Arch Environ Health 31:195-200.

4. RajaeifardA., Neghab M. (2003):

Respiratory symptoms and ventilatory dis- orders among a group of rubber workers.

Toxico; Lett 144 (1): 104.

5. Wild P., LeodolterK., RefregierM., SchmidtH., Zidek T. Haidinger G (2002):

A cohrt mortality and nested case - control studt of French and Austrian talc workers.

Environ Med 58: 98-105.Q

C D N G A N H N O N G N G H I E P . . . (Tiep theo trang 9)

sire canh tranh, giam thieu d nhiem, giam tac hai vdi NLO. Hau het cac DN che bien xuat khau ndng, lam, thuy san da cd san pham xuat khau den tren 160 nude va viing lanh thd, day la mot trong nhung yeu td cP ban gdp phan day manh viee phat trien nen ndng nghiep Viet Nam ben vung.

Giai doan 2002 - 2007 CD Nganh dupe Bp giao thue hien 3 de tai nghien ciru khoa hpc cap Bd ve khao sat, nghien ciru, de xuat cac BNN cho CNLD thude 3 ITnh vue eiia nganh thuy san la Che bien, Nudi trdng va Khai thae hai san. Ket thiic nam 2007 da ed Quyet dinh sd 27/2006/QO-BYT cdng nhan them 1 BNN (Viem da quanh mdng) cho CNLD che bien thuy san; edn cac benh khae nhu viem phe quan, phdng tTnh mach chan, benh xupng khdp... dang tiep tue de xuat de dupe cdng nhan.

Trong hoan canh hdi nhap kinh te qude te, cdng tac AT-VSLO can cd chuyen bien tich cue, phii hpp vdi luat phap va thdng le qude te nhu cac bd tieu ehuan, eac bd quy tac ung xir nhu: ISO (tieu ehuan chat lupng san pham); tieu ehuan IS014000 (mdi tn;dng); tieu ehuan SA 8000 (trach nhiem xa hdi); tieu ehuan HACCP (diem kiem soat tdi han eac mdi nguy); tieu ehuan GAP..., eac bd tieu ehuan ciia WTO hoac ciia cac nude nhap khau la co sd de cac nude nhap khau dung len eae hang rao ky thuat, bao hd nen ndng nghiep ciia hp; cung nhu do anh hudng ciia bien ddi khi hau toan eau, trong dd du doan Viet Nam la mdt trong nhung nude bi anh hudng nang ne nhat. Vi vay cac cap CD trong Nganh se tiep tue day manh edng tac tuyen truyen, phd bien, giao due cho CNLD va ndng, ngu dan nang cao nhan thUe ve cong tac AT-VSLO, PCCN va BVMT CO Nganh chi dao eae COCS xay dung chuong trinh hanh ddng phu hpp de cai thien DKLV, tang gia tri san pham. Ben canh dd, eae cap CD cung tang cudng phdi hpp vdi cac ca quan, dan vi lien quan van ddng NLO va NSDLD xay dung va thue hien cac ndi quy, quy che ve AT-VSLD, PCCN, BVMT...

theo luat phap hien hanh; thue hien che dp kiem tra giam sat, tham gia kiem tra giam sat va phdi hpp edng tac vdi lue lupng canh sat PCCC, canh sat mdi trudng; Cac don vi chirc nang lien quan ciia Bd LO-TB va XH, Bd TN va MT...

De thuc hien dupe nhung dinh hudng dd, ben canh nd luc eiia eac cap CD va CNVC-LD trong Nganh thi su quan tam lanh dao, chi dao ciia Tdng LDLDVN cung nhu su phdi hpp tich cue eiia Bp NN va PTNT se la dieu kien quan trpng de cdng tac AT-VSLO, PCCN va BVMT ciia Nganh tiep tue dat duoe nhung ket qua kha quan hPn trong thdi gian tdi.U

N G H I E N CUtJ G I A I P H A P . . . (Tiep theo trang 29)

Tai lieu tham khao

1. Trieu Quoc Loc va CS: Danh gia sa bo tinh trang rung a cong nhan sir dung may khoan cam tai tai mo than Mao Khe va mo da Phii Ly Hoi thao Viet • Nhat ve rung dong a cac thiet bi cam tay va anh huang ciia no den sire khoe cong nhan, Ha Noi, 1997.

2. Hoang Minh Hien: Nghien ciru anh huang ciia rung dong den sire khoe NLD lam viec vai cac thiet bi rung cam tay de xuat cac giai phap han che anh huang ciia rung dgng, De tai ma so 203/05/TLD, Vien nghien ciru KHKT Bao ho Lao dong. Ha Noi, 2005.

3. ISO 10819:1996: Mechanical vibration and shock-Hand-arm vibration - Method for the measurement and evaluation of the vibration transmissibility of gloves at the palm of the hand, 1996.

4.1. Pinto, N. Stacchini. M. Bovenzi, G. S. Paddan. M. J. Griffin: "Protection effective- ness of anti-vibration gloves: field evaluation and laboratory perfoemance assessment", 9" International conference on Hand-Arm Vibration, Nancy France, 2001.0