bao cao khao sat goi 8

BCKS Gi thu 03: T vn kho st lp TKBVTC - DT x Vn H v Lng Lung huyn Mc Chu Thuc d n: Cung cp in li quc gia cho ng bo cc dn tc tnh Sn La

GII THIU NI DUNG D N U TGi thu 03: T vn kho st lp TKBVTC - DT x Vn H v Lng Lung, huyn Mc Chu. Thuc d n: Cung cp in li quc gia cho ng bo cc dn tc tnh Sn La c bin ch gm nhng ni dung sau: Phn I : Gii thiu chung

- C s php l. - Khi lng thc hin. - c im chung.

Phn II Phn III Phn IV Phn V Phn VI

: Kho st a hnh. : Kho st a cht cng trnh. : Kh tng thu vn cng trnh. : iu kin giao thng vn chuyn. : Kt lun v kin ngh.

Bn v Mt ct a cht, mt bng km theo

N V T VN LP: CNG TY C PHN AN THNH TRUNG TM T VN IN

1


PHN I: GII THIU CHUNGI. C s php l. - Cn c ngh nh s 12/2009/N-CP ngy 10/02/2009 ca chnh ph v vic qun l chi ph u t xy dng cng trnh. - Cn c ngh nh s 16/2005/N-CP ngy 07/02/2005 ca chnh ph v qun l d n u t xy dng cng trnh. - Cn c ngh nh 209/2004 N-CP ngy 16/12/2004 ca chnh ph v qun l cht lng cng trnh xy dng. - Cn c qui nh k thut li in nng thn s 44/QKT-NT 2006 do b Cng nghip ( nay l b Cng thng) ban hnh ngy 08 thng 12 nm 2006 v vic Qui nh k thut in nng thn; - Cn c qui phm trang b in 11-TC-19-2006 ca b cng nghip ( nay l b cng thng) ban hnh v cc TCVN lin quan; - Cn c vo qui nh ni dung v trnh t kho st phc v thit k cng trnh li in ban hnh theo Quyt nh s 3404/Q-EVN-T ngy 26/11/2003 ca tng cng ty in lc Vit Nam. - Cn c n gi kho st ban hnh theo quyt nh s 2892/2007 Q-UBND ngy 22/11/2007 ca UBND tnh Sn La. - Cn c vo Cng vn s 1349/LTBXH- TL ca B lao ng thng binh x hi ngy 21 thng 4 nm 1999 v vic ph cp i vi cng nhn vin i kho st cng trnh in. - Cn c vo Cng vn s 2734/LTBXH- TL ca B lao ng thng binh x hi ngy 19 thng 8 nm 2002 v vic tho thun ch ph cp i vi cng nhn vin kho st cc cng trnh in v cng vn s 3679/CV-EVN-LTL ngy 27/8/2002 v vic hng dn thc hin ch ph cp thu ht, c hi i vi cng nhn kho st cc cng trnh in. - Cn c vn bn s 1730/BXD-KTXD ngy 20/10/2011 hng dn iu chnh d ton xy dng cng trnh theo mc lng ti thiu t ngy 01 thng 10 nm 2011 theo quy nh ti Ngh nh 70/CP. - Cn c cng vn s 10521/BCT-TCNL ngy 14/11/2011 B Cng Thng v/v: hng dn iu chnh d ton cng trnh theo mc lng ti thiu quy nh ti N 70/CP. - Cn c Quyt nh s 709/Q-PCSL, ngy 20 thng 10 nm 2011 v vic: Ph duyt kt qu u thu gi thu s 03 - T vn kho st, lp TKBVTC-DTN V T VN LP: CNG TY C PHN AN THNH TRUNG TM T VN IN

2


huyn Mc Chu - Thuc d n: Cung cp in li quc gia cho ng bo cc dn tc tnh Sn La. - Cn c Hp ng t vn s 48/2011/H-TV ngy 01 thng 11 nm 2011 gia Cng ty in lc Sn La v cng ty C phn An Thnh v vic: T vn kho st, lp TKBVTC-DT Gi thu s 03 - T vn kho st,TKBVTC-DT x Vn H v Lng Lung huyn Mc Chu Thuc d n: Cung cp in li quc gia cho ng bo cc dn tc tnh Sn La. - Cn c vo yu cu kho st cc tuyn ng dy 22kV, trm bin p, ng dy 0,4kV v cng t cc h gia nh trong gi thu 03: T vn kho st lp TKBVTC-DT x Vn H v Lng Lung, huyn Mc Chu. on kho st cng trnh in - Cng ty C phn An Thnh tin hnh kho st a hnh, a cht, kh tng thy vn Gi thu 03: T vn kho st lp TKBVTCDT x Vn H v Lng Lung, huyn Mc Chu thuc d n: Cung cp in li quc gia cho ng bo cc dn tc tnh Sn La. Thi gian tin hnh: Thng ..... nm 2011. hon thnh khi lng nh sau: II. Khi Lng thc hin: T Ni dung cng vic T I- Kho st a hnh: o v tuyn ng dy trung p 22kV t l 1/25000 a 1 hnh cp 3 o c a hnh cc v tr trm bin p t l 1/2000 a hnh 2 cp 3 3 o v tuyn ng dy 0,4kV a hnh cp 2 4 Kho st, iu tra s h gia nh s dng cng t II- Kho st a cht: 1 Khoan tay ly mu (04 L khoan, mi l 4m, ly 04 mu t nguyn dng) 2 o in tr sut 3 Th nghim mu t nguyn dng 4 Th nghim mu nc ngm III- Kh hu thu vn ng lc cng trnh: 1 a cht thu vn, iu tra vt l, xc nh mc ngp lt khu vc cng trnh.N V T VN LP: CNG TY C PHN AN THNH TRUNG TM T VN IN

n v tnh m v tr m h m im Mu Mu

Khi lng 7.486 03 10.225 379 8 2 2iu tra, thu thp cc s liu in hnh cc 3


2 Thu thp ti liu v gi bo kh tng thu vn.

nm, s liu iu tra c thu thp t i kh tng thu vn Sn La

III. c im chung: a/ c im t nhin: * X Vn H v Lng Lung l x vng su vng xa, vng cao nm pha ng Bc huyn Mc Chu, nm cch xa trung tm huyn. Vi v tr i l nh sau: V tr a l x Vn H: Pha Bc : Gip X Phing Lung. Pha Nam : Gip x Xun Nha. Pha ng : Gip x Lng Lung Pha Ty : Gip x ng Sang. V tr a l x Lng Lung: Pha Bc : Gip x Ching Khoa. Pha Nam : Gip tnh Ha Bnh. Pha ng : Gip x Ching Yn. Pha Ty : Gip x Vn H. a hnh x Vn H v x Lng Lung ch yu l cc dy ni cao xen k cc thung lng bng phng, a hnh b chia ct. C cao so vi mt nc bin dao ng t 413m n 1123m. Nhn chung a hnh y cao v dc gy kh khn cho vic i li v t chc sn xut vn chuyn hng ho c bit vo ma ma. * Dn s trong vng d n gm c dn tc Thi, Mng, Mng, Dao, Kinh Kh M sinh sng. * iu kin giao thng: ng giao thng n hin trng xy dng bn Lng Bon v Sui Bon x Lng Lung c c im sau: +ng t H Ni n ng ba 46 i theo ng quc l 6 di 160km thucN V T VN LP: CNG TY C PHN AN THNH TRUNG TM T VN IN

4


ng giao thng loi 2. + ng t Sn La n ng ba 46 i theo ng quc l 6 di 147km thuc ng giao thng loi 2. + ng t ng ba 46 i bn Lng Bon v Sui Bon i theo ng tnh l 43 di 2km thuc ng giao thng loi 4. ng giao thng n hin trng xy dng bn Pa Cp x Vn H c c im sau: +ng t H Ni n ng ba Vn H i theo ng quc l 6 di 165km thuc ng giao thng loi 2. + ng t Sn La n ng ba Vn H i theo ng quc l 6 di 142km thuc ng giao thng loi 2. + ng t ng ba Vn H i bn Pa Cp i theo ng tnh l 43 di 4km thuc ng giao thng loi 4. ng giao thng n hin trng xy dng bn Thung Cung x Vn H c c im sau: +ng t H Ni n ng ba Vn o i theo ng quc l 6 di 172km thuc ng giao thng loi 2. + ng t Sn La n ng ba Vn o i theo ng quc l 6 di 135km thuc ng giao thng loi 2. + ng t ng ba Vn o i bn Thung Cung i theo ng lin bn di 5km thuc ng giao thng loi c bit kh khn. * Nhn chung h thng giao thng trong khu vc thc thi cng trnh tng i y nhng do iu kin cng trnh nm trong khu vc min ni c a hnh b chia ct phc tp nn vic cht lng rt xu, trong qu trnh vn chuyn cn phi san gt tm th xe mi c th qua li, khi vn chuyn cc vt liu vo cng trnh phi dng xe ti hai hoc ba cu th mi vn chuyn cc vt t ti cng trnh. iu kin giao thng ca cng trnh c bit gp nhiu kh khn vo ma ma. b/ a hnh, a cht, kh hu v thu vn khu vc vng d n: Kh hu: Vng d n nm trong vng ni cao mang c trng ca kh hu nhit i phn thnh hai ma r rt ma ng lnh v c sng mui v ma phn, ma h mt m. Theo ti liu kh tng thu vn trm huyn Mc Chu vng d n c c im kh hu nh sau: + Nhit khng kh:N V T VN LP: CNG TY C PHN AN THNH TRUNG TM T VN IN

5


- Trung bnh nm: 25o C. - Thp nht nm: 0o C thng 11, 12, 1. - Cao nht nm: 45 o C thng 4, 5, 6. + Lng ma: - Trung bnh thng/nm: 1800mm, cao nht l thng 7: 2985 mm, thng thp nht l thng 3: 58 mm. - S ngy ma trung bnh / nm: 130 ngy + m khng kh: - Trung bnh nm: 85 %. - m ln nht t0=35 0C trong thi gian 10 ngy: 100% + Nng: - Tng s gi nng trong nm: - Bnh qun 1780 gi. - S ngy nng trong nm: 165 ngy. + Gi: C hai loi gi chnh: - Gi ma ng bc trn t vng ng Bc vo khong thng 11 n thng 3. - Gi Ty(Go Lo): Mang khng kh nng t pha Ty trn sang khong thng 3 n thng 12. Thu vn: Trong vng vo ma ma cn c cc con sui nh, knh, rch nc chy t cc khe ni ra. a hnh: Vng d n l vng i ni cao, a hnh ch yu l i ni xen ln cc thung lng v rung bc thang c kh nhiu khe sui bt ngun t Ty Bc. a cht, a chn: Vng d n thuc phn i ni cao v dc, xen ln cc thung lng bng phng, cui kt c ri rc cao, cng chu nn thp R = 1 1,5 kg/cm2, cc lp ny thng ph trn mt, vi chiu dy lp rt mng t 1 n 3m.


6


Lp th hai l axt rt rn chc nm ngay di lp mt, l ra trn mt tuyn chim 30% ton tuyn nn rt kh khn cho vic o mng ct, tip a thi cng cng trnh. Kin to: c trng kiu "a mng t gy" cc t gy ch yu c phng Ty Bc n ng Nam. a cht thu vn: Nm trong vng tr lng nc ngm km phong ph, chiu su mc nc ngm t 10 30m. a chn: D bo khu vc nghin cu nm trong vng c th c ng t cp 6 (Theo ti liu ca vin khoa hc Vit Nam).


7


PHN II KHO ST A HNH I. My mc o v dng c o - My ton c in t Topcom GTS230. - My nh v ton cu GPS (Garmin GPS 72H). - Gng. - B m KenWood. - Cc xi mng (5x5x50) cm c li thp 6. - Sn , inh 4cm. II. Phng php o ngoi thc a: - Vic xc nh tuyn ngoi thc a c thc hin bng vic phng ng thng v ng cc, chn mc cc v tr gc ngot (G), v cc cc ph (F). - Cc v tr G c chn bng cc Xi mng (10x10x50)cm c tim li thp 6mm ghi sn k hiu th t ca mc. - Nhng quy nh: + Sai s nh tm my khng qu 3 mm + Khong cch t my n mc cn xc nh D 250m. + Sai s nh hng im khi u 15" + Gng dng phi c bt nc thu chun. + Sai s do chn mc 50mm - Phng php k thut: + p dng bi ton nghch trong o c, t to bit tnh ra gc kp v cnh bng c s tnh ton: + Da vo cc im to c trong khu o v cc im mc quy hoch thit k. Ap dng cng thc: + Tnh gc phng v cnh gc I1-I2 = artg I2 (X2 Y2) M(XM YM)

I1-I2 = artg X X 2 1N V T VN LP: CNG TY C PHN AN THNH TRUNG TM T VN IN

D

Y2 Y1

8


Tnh gc phng v t im I1 n im mc M: I1-M X X M 1 Tnh gc kp I2I1M = = I1-M - I1-I2 Tnh khong cch t im I1 n im M D = ( X M X1 ) + ( YM Y1 )2 2

I1 (X1 Y1)

YM Y1

p dng phng php to cc tnh to cho im M XM(T) = X1 + Dcos I1-M YM(T) = Y1 + Dsin I1-M XM = XM(T) YM = YM(T) Th gc v khong cch D l ng.

- Sau khi cc to , cao ca cc im li cng tc o v bn c tin hnh. - Bn khu o c thc hin theo phng php thnh lp bn s. o v lp bn a hnh Z 0,4kV c t l 1/2000, o v lp bn a hnh Z 22kV c t l 1/25000 - Vic o v chi tit c thc hin bng cc my ton c in t TOPCOM - GTS230 sai s 3 giy, vic xc nh cc im gc ca tuyn v cc im ph c cn b tc nghip xc nh trc tip ti thc a. - Cc im o chi tit u c o theo phng php to cc, khong cch t my n gng c o mt ln bng gng phn chiu, gc bng c xc nh theo phng php na vng o. - Cc s liu o chi tit c ghi vo s in t; ton b cc s liu o c trt trc tip t my o vo my vi tnh bng phn mm KSVN5.1. * Cng tc ni nghip Cc s liu o c chuyn vo phn mm o v bn a hnh KSVN 5.1 x l, v ni dung bn . Sau khi xy dng bn v th, phn lp i tng, bn v c chuyn vo bin tp trong phn mm AUTOCAD 2007. Ti y ccN V T VN LP: CNG TY C PHN AN THNH TRUNG TM T VN IN

9


i tng c qun l theo lp, theo mnh trn tng file ring bit. Vic lp ch gii cho ni dung bn c p dng theo mu hin hnh m bo cho vic c bn . Cc yu t hnh thc c trnh by trn c s quy nh chung v c s thng nht ca pha ch u t. - Sau khi hon thnh phn a hnh tin hnh kim tra an ton v tnh chnh xc c l trn phn mm c l. * Thnh lp bn v v lp h s bo co. - Bnh tuyn ng dy 22kV t l 1:25.000. - Bnh mt bng trm bin p t l 1:500. - Bnh tuyn ng dy 0,4kV sau cc trm bin p t l 1:25.000. - Bo co thuyt minh. - Cc bng thng k. III. Cng tc iu tra Tin hnh iu tra trn dc tuyn v cc yu t dn c, kinh t x hi, a hnh a vt v cc giao cho, o v cc v tr gc ngot, cc giao cho vi cc ng dy in khc, cc ng dy thng tin, ng giao thng, cc v tr vt sui cc cng trnh kin trc, nh ca nm trn trc tuyn v trong phm vi nh hng hnh lang tuyn, kt hp vi s ha, ghi ch nhm lm sng t cc yu t a hnh, a vt, lp bng thng k theo yu cu km theo bo co. Ti cc v tr gc ngot (G) tin hnh chn mc b tng kch thc 10x10x50cm, tin hnh gi mc theo hai hng ca tuyn ng dy mc b tng kch thc 5x5x50cm. Cc v tr (G), mc gi u c chn v tr n nh lu di, phc v cng tc thi cng sau ny. IV. M t tuyn: X Vn H v x Lng Lung l cc x thuc vng min ni c cao trung bnh l 413m n 1123m Gi thu 03: T vn kho st lp TKBVTC - DT x Vn H v Lng lung, huyn Mc Chu thuc D n: Cung cp in li quc gia cho ng bo cc dn tc tnh Sn La c tuyn ng dy 22kV, v tr trm bin p v ng dy h th c kho st i trn a hnh rng tp, nng ng, sn, la, ni , tuyn ng dy i trn i tng i phc tp. ng dy 22kV kho st thuc a hnh cp 3, im t TBA v ng dy 0.4kV kho st thuc a hnh cp 2. Mng li sng sui trong khu vc d n c cc con sui nh, knh, rch nc chy t cc khe ni ra. * Thm thc vt v tng ph: Khu vc c lp ph thc vt tha tht, gm c rng trng v rng ti sinh khoanh nui, cc di thung lng rung nng c nhn dn trng ng, sn, hoa mu, cy cng nghip v mt s loi cy n qu c sn khc. IV-1-1. Tuyn ng dy 22kV: Gm 03 nhnh r. Tng chiu di cc nhnh r l 7.486m.N V T VN LP: CNG TY C PHN AN THNH TRUNG TM T VN IN

10


* ng dy 22kV cp in cho TBA bn Sui Bon v Lng Bon x Lng Lung di 392m. Gm cc on tuyn sau: - T im u n G1 on tuyn c chiu di 38m. on tuyn i trn khong t chng v nng ng. - T G1 n G2 on tuyn c chiu di 116m tuyn li phi vi gc li P= 0 57 29. on tuyn ch yu i trn nng ng. - T G2 n G3 on tuyn c chiu di 65m tuyn li tri vi gc li T= 0 13 56. on tuyn vt ng v i trn i sn. - T G3 n no cui on tuyn c chiu di 127m tuyn li phi vi gc li P= 11035. on tuyn i trn i sn, rng tre v khu t trng. - T no cui n TBA on tuyn c chiu di 46m tuyn li phi vi gc li P= 16038. on tuyn i trn khu t trng. * ng dy 22kV cp in cho TBA ti bn Pa Cp x Vn H di 3.027m. Gm cc on tuyn sau: - T im u n G1 on tuyn c chiu di 28m. on tuyn vt ng v i trn nng la. - T G1 n G2 on tuyn c chiu di 95m tuyn li gc phi vi gc li T 0 = 22 31. on tuyn i trn nng la. - T G2 n G3 on tuyn c chiu di 309m tuyn li gc phi vi gc li P 0 = 11 21. on tuyn i trn rung la. - T G3 n G4 on tuyn c chiu di 154m tuyn li gc tri vi gc li T 0 = 12 41. on tuyn i qua nng mn. - T G4 n G5 on tuyn c chiu di 220m tuyn li gc phi vi gc li 0 P= 1 10. on tuyn vt ng, i qua nng mn v nng la. - T G5 n G6 on tuyn c chiu di 215m tuyn li gc tri vi gc li T= 17005. on tuyn i qua nng la. - T G6 n G7 on tuyn c chiu di 198m tuyn li gc tri vi gc li T= 34018. on tuyn i qua rng cy. - T G7 n G8 on tuyn c chiu di 117m tuyn li gc phi vi gc li P= 33048. on tuyn i qua rng cy. - T G8 n G9 on tuyn c chiu di 94m tuyn li gc tri vi gc li 0 T= 9 52. on tuyn i qua i cy g tp. - T G9 n G10 on tuyn c chiu di 116m tuyn li gc phi vi gc li P= 2041. on tuyn i qua i cy g tp. - T G10 n G11 on tuyn c chiu di 178m tuyn li gc tri vi gc li T= 25050. on tuyn i qua i cy g tp. - T G11 n G12 on tuyn c chiu di 135m tuyn li gc tri vi gc li T= 5036. on tuyn i qua i cy g tp v nng mn.N V T VN LP: CNG TY C PHN AN THNH TRUNG TM T VN IN

11


- T G12 n G13 on tuyn c chiu di 173m tuyn li gc tri vi gc li T= 1600. on tuyn i qua nng mn. - T G13 n G14 on tuyn c chiu di 119m tuyn li gc tri vi gc li T= 20039. on tuyn i qua nng mn. - T G14 n G15 on tuyn c chiu di 423m tuyn li gc tri vi gc li 0 T= 7 10. on tuyn i qua nng ng v vt ng. - T G15 n G16 on tuyn c chiu di 164m tuyn li gc tri vi gc li T= 23045. on tuyn i qua nng ng. - T G16 n no cui on tuyn c chiu di 364m tuyn li gc phi vi gc li P= 35023. on tuyn i qua nng ng v nng mn. - T no cui n TBA on tuyn c chiu di 25m tuyn li gc tri vi gc li T= 28043. on tuyn i trn nng ng. * ng dy 22kV cp in cho TBA bn Thung Cung x Vn H di 4.067m. Gm cc on tuyn sau: - T im u n G1 on tuyn c chiu di 17m. on tuyn i trn rung c. - T G1 n G2 on tuyn c chiu di 535m tuyn li phi vi gc li T= 0 28 32. on tuyn i trn rung c v nng ng. - T G2 n G3 on tuyn c chiu di 1.435m tuyn li phi vi gc li P= 0 52 10. on tuyn i trn nng ng, rung la v nng mn. - T G3 n G4 on tuyn c chiu di 31 5m tuyn li tri vi gc li T = 0 23 43. on tuyn i qua nng mn. - T G4 n G5 on tuyn c chiu di 1.335m tuyn li tri vi gc li T = 0 14 49. on tuyn i qua nng ng v rung la. - T G5 n TBA on tuyn c chiu di 430m tuyn li phi vi gc li P= 0 16 40. on tuyn i qua nng ng. IV-1-2.V tr cc trm bin p 22/0,4kV: Trm bin p: c t cnh ng lin bn v trung tm khu dn c sao cho khong cch t trm bin p ti cc h dn l gn nht m bo bn knh cp in v tnh hiu qu kinh t. (V tr t trm bin p c th hin trong cc bn v mt bng). IV-1-3. Tuyn ng dy 0,4KV: Tng chiu di ng dy h th di 10.225m. + ng dy 0.4kV sau TBA cp in cho cc h dn ti bn Lng Bon v Sui Bon x Lng Lung di 2.201m. + ng dy 0.4kV sau TBA cp in cho cc h dn ti bn Pa Cp x Vn H di 3.887m.N V T VN LP: CNG TY C PHN AN THNH TRUNG TM T VN IN

12


+ ng dy 0.4kV sau TBA cp in cho cc h dn ti bn Thung Cung x Vn H di 4.137m. V. Cc bng biu km theo.BNG THNG K CHIU DI GC LI DK: Gi thu 03: T vn kho st lp TKBVTC - DT x Vn H v Lng

Lung, huyn Mc ChuBM.KS.01 K/C gia 2 gc Chiu di theo tch k Tr s gc li Hng li Ghi ch

STT

Tn gc

cao

Z 22kV n bn Lng Bon v Sui Bon CG1 38 0 1 690,12 G1G2 116 2 690,95 G2G3 65 3 683,19 G3G4 127 4 689,58 G4TBA 46 5 673,54 Z 22kV n bn Pa Cp CG1 28 0 793,48 G1G2 95 783,59 G2G3 309 789,34 G3G4 154 835,00 G4G5 220 833,01 G5G6 215 841,52 G6G7 198 833,30 G7G8 117 812,05 G8G9 94 802,81 G9G10 116 735,45 G10G11 178 685,11 G11G12 135 688,82 G12G13 173 695,79 G13G14 119 697,65 G14G15 423 696,65 G51G16 164 700,45 G16G17 364 701,32 G17TBA 25 701,15 Z 22kV n bn Thung Cung CG1 17 0 602,00 G1G2 535 600,90 G2G3 1.435 593,50 G3G4 315 614,20

00000 57029 13056 11035 16038 00000 22031 11021 12041 01010 17005 34018 33048 09052 02041 25050 05036 16000 20039 07010 23045 35023 28043 00000 28032 52010 23043

Phi Tri Phi Phi

Tri Phi Tri Phi Tri Tri Phi Tri Phi Tri Tri Tri Tri Tri Tri Tri Phi Tri Phi Tri13



G4G5 G5TBA

1.335 430

621,00 630,60

14049 16040

Tri Phi


14


BNG THNG K NH V CC CNG TRNH KIN TRC TRONG HNH LANG TUYN DK: Gi thu 03: T vn kho st lp TKBVTC - DT x Vn H v Lng Lung, huyn Mc Chu BM.KS.02 K/c n tim tuyn S TT K/c theo tch k Tri Ct Phi H v tn ch nh hay tn c quan a ch hay tn c quan qun l Loi kt cu c im kt cu Vt Vt K/thc liu liu mt XD XD bng tng mi Chiu cao nc Ghi ch

1 0 0

2 0

3 0

4 0

5 0

6 0

7 0

8 0

9 0

10 0

11 0

12 0

13

BNG THNG K CC NG IN GIAO CHO DK: Gi thu 03: T vn kho st lp TKBVTC - DT x Vn H v Lng Lung, huyn Mc Chu S Tch k Gc giao Hng ng dy, in p S K/c t im ct n ct Kt cu BM.KS.03 cao Ghi ch15



TT

im ct

cho

Tn c quan qun l

dy

Tri

Phi

ct

H (m)

1

2

3

4

5

6

7

8

9

10

BNG THNG K CC NG DY THNG TIN GIAO CHO DK: Gi thu 03: T vn kho st lp TKBVTC - DT x Vn H v Lng Lung, huyn Mc Chu BM.KS.04 S T T Tch k im ct Gc giao cho Hng ng dy, in p Tn c quan qun l S dy K/c t im ct n ct Tri Phi Kt cu ct cao H (m)

Ghi ch

1

2

3

4

5

6

7

8

9

1016



0

0

0

0

0

0

0

0

0

0

BNG THNG K CC NG GIAO THNG GIAO CHO DK: Gi thu 03: T vn kho st lp TKBVTC - DT x Vn H v Lng Lung, huyn Mc Chu BM.KS.05 S TT Tch k im ct Gc giao cho Hng i ca ng Tn ng Chiu rng ng c tnh k thut ca ng Kt cu Trng Trng thi mt thi mt nn ng ng ng Mt giao thng Ghi ch

1 2 3 Z 22kV n bn Pa Cp x Vn H1 G3G4 1170

4

55m

6n nh

7ng nha

8Bnh thng

9

10

QL-43 Ng ba Vn H -Xun Nha


17


1 1

G3G4 G14G15

103

0

820

QL-43 Ng ba Vn H -Xun Nha QL-43 Ng ba Vn H -Xun Nha

5m 5m

n nh n nh

ng nha ng nha

Bnh thng Bnh thng

BNG THNG K SNG, SUI GIAO CHO DK: Gi thu 03: T vn kho st lp TKBVTC - DT x Vn H v Lng Lung, huyn Mc Chu BM.KS.06

S TT 1 0

Tch k im ct 2 0

Gc giao cho 3 0

Tn sng, ngi 4 0

Chiu rng sng sui 5 0

cao mc nc Lc o 6 0 Cao nht 7 0 Thp nht 8 0 c bit 9 0

Phng tin qua li 10 0

Chiu cao ct bum 11 0

Ghi ch 12 0


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BNG THNG K HOA MU CY CNG NGHIP DK: Gi thu 03: T vn kho st lp TKBVTC - DT x Vn H v Lng Lung, huyn Mc Chu BM.KS.07 S T T 1 Trong khong gc 2 Chiu di tuyn 3 Chiu di tuyn ct hoc trong phm vi hnh lang tuyn t Cy Rng Bch Rng hoang, La Mu n Ch t n trng sng, qu nhin h 4 5 6 7 8 9 10 11 c tnh c bn cy (mm) 12 Chiu cao (m) 13 Mt cy/m2 14 Ghi ch

15

Z 22kV bn Lng Bon v Sui Bon 1 CG1 38 X 2 G1G2 116 X 3 G2G3 65 X 4 G3G4 127 5 G4TBA 46 Z 22kV bn Pa Cp CG1 1 28 X 2 G1G2 95 XN V T VN LP: CNG TY C PHN AN THNH TRUNG TM T VN IN

X X

70

5

3

Rng tre

19


3 G2G3 309 X 4 G3G4 154 5 G4G5 220 X 6 G5G6 215 X 7 G6G7 198 8 G7G8 117 9 G8G9 94 10 G9G10 116 11 G10G11 178 12 G11G12 135 13 G12G13 173 14 G13G14 119 15 G14G15 423 16 G51G16 164 17 G16G17 364 18 G17TBA 25 Z 22kV bn Thung Cung 1 CG1 17 2 G1G2 535 3 G2G3 1.435 4 G3G4 315 5 G4G5 1.335 X 6 G5TBA 430 X

X

X X X X X X X X X

230 230 210 210

2,7 2,7 3,9 3,9

0,25 0,25 1,6 1,6

X X X X X X X X X X X X X

90 160

2,8 2,2

0,4 0,25

X

160

2,2

0,25

190

2,5

0,25


20


BNG THNG K IN TR SUT CA T DK: Gi thu 03: T vn kho st lp TKBVTC - DT x Vn H v Lng Lung, huyn Mc Chu BM.KS.08 Stt V tr o Thi im o(ngy, gi) Thi tit lc o (ma, nng, m t) su o (m) Tr s o trung bnh ca 2 hoc 3 php o Ghi ch

1 2 3 4

TBA bn Lng Bon, Sui BonG8 Z22kV bn Pa Cp

10h20

Nng

1,3

14.537m

9h40 8h10

Nng Nng

0,82 1,15

12.924m 17.428m

TBA bn Pa CpG3 Z22kV bn Thung Cung

7h50

Nng

0,95

16.293m

5

TBA bn Thung Cung

9h25

Nng

0,93

18.729m


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VI. Kt lun. a hnh - a mo tuyn ng 22kV v tr TBA v ng dy 0,4kV ca Gi thu 03 T vn kho st lp TKBVTC- DT x X Vn H v x Lng Lung Huyn Mc Chu thuc D n: Cung cp in li quc gia cho ng bo cc dn tc tnh Sn La, nhm phc v cung cp in sinh hot v sn xut cho nhn dn trong vng d n c o c, kho st thu thp s liu ti hin trng, c tng chiu di DK-22kV l 7.486m, 03 TBA vi tng cng sut l 275KVA, tuyn ng dy 0.4kV sau cc TBA di 10.225m, tng s cng t cn cp cho nhn dn l 379ci. Tuyn ng dy khng ct qua nh dn v cc cng trnh cng cng khc, khng lm nh hng, ph v quy hoch tng th ca khu vc.


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PHN III A CHT CNG TRNHI. My mc dng c dng trong kho st a cht cng trnh:

1- Cng tc khoan: - Dng b khoan tay 127 cng vi b dng c ly mu nguyn dng. 2- Cng tc th nghim: - Th nghim mu t, mu nc do phng th nghim thuc Cng ty c phn t vn kim nh cht lng xy dng m nhim. 3- Cng tc o in tr sut: - My o in tr sut UJ-18 ca Trung Quc ch to. II. S lc v tr, a hnh, a mo, cu to a cht. X Vn H v x Lng Lung l x min ni c cao trung bnh 413m n 1123m. Gi thu 03 T vn kho st lp TKBVTC- DT x X Vn H v x Lng Lung Huyn Mc Chu thuc D n: Cung cp in li quc gia cho ng bo cc dn tc tnh Sn La, c tuyn ng dy 22kV c kho st i trn i ni, rng trng, vn cy cng nghip, cy n qu, a hnh tng i phc tp tuyn ng dy 0.4kV i bm theo ng lin x, lin bn. ng dy 22kV c kho st thuc a hnh cp 3, v tr im t TBA v tuyn ng dy 0.4kV thuc a hnh cp 2. Ngoi ra mng li thu vn trong vng cn c cc con sui nh, knh, rch nc chy t cc khe ni ra thng sy ra l. Thm thc vt v tng ph: c lp ph thc vt tha tht, gm c rng trng v rng ti sinh kh dy, cc di thung lng rung nng c nhn dn trng ma, la nng, hoa mu v mt s loi cy n qu khc. * Cu to nn dng a hnh khu vc l cc lp t st, st mu nu, xm en mm b. Thnh phn ch yu l ct, st. Lp vi l trn tuyn kh ph bin. III. a cht cng trnh. Cn c vo ti liu thu thp c ngoi thc a. Cn c vo kt qu th nghim mu t, cc ngun gc to thnh, din phn b ca t, ti cc im l trn tuyn. Khu vc trm d n gp cc lp t c cc ch tiu c l c bn sau:


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+ Lp 1: Lp trn cng l t Ferallt nu nm trn cc sn i thoi. t Ferallt b bin i do trng cy hoa mu nm di cc thung lng v to ra vng trng sn, la, ng c chiu dy khong t 0,3m n 1m. Ngc li c nhng vng i b bo mn tr c ln vi ni trn b mt. - Lp 2: L lp vi mu xm nu, phong ho, to thnh lp rn chc v lp ny phn b ch yu su t 1,5m tr ln c nhng ch lp ny l ra trn mt. Lp ny l lp t c iu kin bn vng cho nn mng cng trnh. (Cc ch tiu c l c bn ca cc lp t c nu trong bng kt qu th nghim). IV. a cht thy vn. Nc mt: Khu vc d kin xy dng cng trnh c mng li sui nh v cc khe lch mc nc su t 0,5 ~ 1,5 m. Nc di t: Nhn chung khu vc c mc nc ngm kh su, ch yu ch xut hin nc trong cc hang. Chiu su mc nc ngm trn 25m. V. Cc hin tng a cht vt l, ng t, in tr sut. Cc hin tng a cht vt l: Khu vc d kin xy dng cng trnh khng c hin tng a cht vt l no ng k xy ra, ngoi hin tng xm thc, ph hu b v ang t t din ra ca dng sui nh. ng t: Theo t bn phn vng ng t lnh th Vit Nam do Vin Vt L a Cu - TTKHTN v CNQG lp nm 1995. Khu vc d n nm trong vng c th xy ra ng t ti cp 4.

THIT L KHOANN V T VN LP: CNG TY C PHN AN THNH TRUNG TM T VN IN

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Gi thu 03: T vn kho st lp TKBVTC - DT x Vn H v Lng Lung, huyn Mc Chu. Thuc d n: Cung cp in li quc gia cho ng bo dn tc tnh Sn La T l ng: 1:50 S hiu : HK1 V tr G3 ng dy 22kV bn Thung Cung Chiu su h khoan 4,2m su ly mu th nghim K hiu lp t Cao dy lp Chiu dy lp S th t

Ct a tng

Thuyt minh a tng

Cp t

1

0,42

TC1A

t st pha mu xm nu, nu vng, nu ln dm sn trng thi do mm, pha trn mt c nhiu r cy

III

2

3,78

TC2A

St mu nu , nu vng ln dm sn nh ng knh 410mm trng thi do cng

1,0-1,2

III


25


THIT L KHOANGi thu 03: T vn kho st lp TKBVTC - DT x Vn H v Lng Lung, huyn Mc Chu. Thuc d n: Cung cp in li quc gia cho ng bo dn tc tnh Sn La T l ng: 1:50 S hiu : HK2 V tr TBA bn Thung Cung Chiu su h khoan 4,4m su ly mu th nghim K hiu lp t Cao dy lp Chiu dy lp S th t

Ct a tng

Thuyt minh a tng

Cp t

1

0,6

TC1A

t st pha mu nu xm, ln cui kt tng ln trng thi do mm pha trn ln r cy

III

2

3,8

TC2A

St mu nu , nu vng ln dm 1,2-1,4 sn nh ng knh 4-10mm trng thi do cng

III


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PHN IV KH TNG THY VN CNG TRNHIV.1- c im kh hu thu vn cng trnh: IV1.1. c im kh hu thu vn cng trnh:

Da theo ti liu a l thu vn sng ngi Vit Nam ca nh xut bn Khoa hc k thut in nm 1987 v s liu kh hu dng trong thit k xy dng in nm 1987 (TCVN 4088-85). c im kh hu chung cho vng d n c nh gi theo ti liu kh tng ca trm kh tng huyn Mc Chu - Tnh Sn La. V c bn thuc vng kh hu nhit i gi ma c gi ma ng lnh v ma h nng m ma nhiu. Nhit khng kh bnh qun nm khong 18.50C. Nhit cc i c th ln ti hn 37,90C thng xut hin vo thng 4, 5, 6. V nhit thp nht c th h xung 30 C thng xut hin vo cc thng 12 v thng 1. m khng kh bnh qun nm khong 85%, cao nht c th ln ti 100%, thp nht c th xung ti 22%. Lng ma trung bnh nhiu nm trong khu vc l 1800 mm. Ma bt u vo thng V, chm dt vo thng X v c s ngy ma trung bnh trong nm khong 137 ngy. xc nh phn vng dng st trong khu vc tuyn ng dy i qua s dng s liu dng ngy quan trc ti trm Mc Chu. Kt qu ghi bng sau:Thng, nm / ngy, dng TT Huyn

1

2

3

4

5

6

7

8

9

10

11

12

Nm

0,2 0,5

2,8 8,2 15,4

18,1 19,2

19,1 12,0 5,1 1,1 1,0 103

Nhn vo bng trn cho thy dng xy ra bt k thng no trong nm, nhng ch yu vo ma h, vo cc bui chiu t 13 gi n ti. Thng c nhiu dng nht t thng 5 n thng 9 trng vi thi k ma ma, thi gian duy ch cn dng: 1 n 2 gi, dng xut hin thng i km theo vi sm st. Trong cc thng t thng 11 n thng 3 l thi k hot ng ca gi ma ng, do vy thng t c dng, khong 2 n 3 ngy trong thng. IV1.1. c im thu vn cng trnh:N V T VN LP: CNG TY C PHN AN THNH TRUNG TM T VN IN

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Khu vc d n l vng t i cao trng la, mu, cy cng nghip, n qu. Ma l thng ko di 5 thng, t thng 6 n thng 10 chim t 70 n 78%. Thng xut hin lng ma ln nht l thng 8, lng nc c thng ny chim t 19 n 23% lng dng chy c nm. - V ma cn (Trng vi ma kh), thng t thng 11 n thng 5 nm sau, nn t trn mt ca khu vc th kh cn v nt n. - V ma l (Trng vi ma ma), thng t thng 6 n thng 9, lng nc tp trung vo 3 thng 7,8,9 v kt hp vi l ln trong cc con sui nh trong vng. a cht thu vn: Vng d n nm trong vng tr lng nc ngm tng i su, chiu su mc nc ngm t 10 30 m tu thuc iu kin a hnh. Nc mt v nc ngm khng c ho cht nn b tng hay cu kin kim loi khng b n mn. IV.2- Tnh ton chnh l ti liu iu tra o c v ti liu thu thp kh tng thu vn: IV.2.1. Phn tch ti liu: * nh gi ti tiu ngp ng khu vc t tuyn ng dy, chng ti dng ti liu lng ma ngy ln nht trong nm ca trm kh tng Sn La v kt hp vi cc cao trnh nc ngp iu tra trn dc tuyn ng dy tnh ton mc nc ngp thit k. * Tnh hnh ti liu thu thp: Ti liu iu tra mc nc ngp ng cao nht hng nm iu tra trong dn v o c ngoi thc a nh sau: Ti liu lng ma ngy ln nht hin c ti trm kh tng thu vn Mc Chu t nm 1990 n thng 11 nm 2010. IV.2.2. Tnh ton ti liu: Tnh ton lng ma ngy ln nht ng vi cc tn sut thit k khc nhau c tnh theo phng php thng k. IV.2.3. Kt qu iu tra mc nc ngp ng trn tuyn: a- Phng php iu tra: iu tra trong dn a phng xc nh cc vt ngp ng trn dc tuyn ng dy. Dng my o c a hnh o c cao trnh nc ngp, di ngp ni tuyn ng dy ct qua. b- Kt qu iu tra, o c cc on ngp ng: Trn vng tuyn ng dy i qua c th hin trn mt bng.N V T VN LP: CNG TY C PHN AN THNH TRUNG TM T VN IN

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IV.3. Kt lun.

Theo kt qu iu tra, o c thng s tnh ton c trng cc yu t kh tng thy vn thit k cho vng d kin xy dng ng dy l m bo tin cy.

PHN V IU KIN GIAO THNG VN CHUYNiu kin giao thng i li ca d n tng i y v thun tin nhng do iu kin cng trnh nm trong khu vc min ni nn gp nhiu kh khn cho vic vn chuyn vt t thit b thi cng cng trnh, c bit l v ma ma vic vn chuyn vt t thit b gp rt nhiu tr ngi v nguy him. - V c bn tuyn ng dy c kho st bm theo trc ng lin bn ca dn. Tuy nhin do iu kin cng trnh thi cng vng min ni ng hin ti kh khn ch c th thi cng c trong ma kh. Vic vn chuyn t ni tp kt (Ch t c th vo c) n v tr ngang tuyn thi cng hon ton bng th cng kt hp xe ci tin. iu kin giao thng n n cng trnh: ng giao thng n hin trng xy dng bn Lng Bon v Sui Bon x Lng Lung c c im sau: +ng t H Ni n ng ba 46 i theo ng quc l 6 di 160km thuc ng giao thng loi 2. + ng t Sn La n ng ba 46 i theo ng quc l 6 di 147km thuc ng giao thng loi 2. + ng t ng ba 46 i bn Lng Bon v Sui Bon i theo ng tnh l 43 di 2km thuc ng giao thng loi 4. ng giao thng n hin trng xy dng bn Pa Cp x Vn H c c im sau: +ng t H Ni n ng ba Vn H i theo ng quc l 6 di 165km thuc ng giao thng loi 2. + ng t Sn La n ng ba Vn H i theo ng quc l 6 di 142km thuc ng giao thng loi 2. + ng t ng ba Vn H i bn Pa Cp i theo ng tnh l 43 di 4km thuc ng giao thng loi 4. ng giao thng n hin trng xy dng bn Thung Cung x Vn HN V T VN LP: CNG TY C PHN AN THNH TRUNG TM T VN IN

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c c im sau: +ng t H Ni n ng ba Vn o i theo ng quc l 6 di 172km thuc ng giao thng loi 2. + ng t Sn La n ng ba Vn o i theo ng quc l 6 di 135km thuc ng giao thng loi 2. + ng t ng ba Vn o i bn Thung Cung i theo ng lin bn di 5km thuc ng giao thng loi c bit kh khn. Nhn chung h thng ng giao thng t trung tm x i trong ni b cng trng l ng t lin bn dnh cho xe th s cht lng rt xu, trong qu trnh vn chuyn cn phi san gt tm th xe mi c th qua li, qu trnh vn chuyn nguyn vt liu vo cng trnh khi vn chuyn cc vt liu vo cng trnh phi dng xe ti hai hoc ba cu th mi vn chuyn cc vt t ti cng trnh. c bit gp nhiu kh khn vo ma ma. Vt t dc tp chung ti mt s im trn tuyn sau mi ri tuyn cc cng on cn li phi vn chuyn th cng, C ly vn chuyn th cng ngang tuyn bnh qun cho ng dy 22kV v v tr TBA bn Lng Bon v Sui Bon x Lng Lung l 35m v vn chuyn th cng ngang tuyn cho ng dy 0,4kV l 16m. C ly vn chuyn th cng ngang tuyn bnh qun cho ng dy 22kV v v tr TBA bn Pa Cp x Vn H l 80m v vn chuyn th cng ngang tuyn cho ng dy 0,4kV l 8m. C ly vn chuyn th cng ngang tuyn bnh qun cho ng dy 22kV v v tr TBA bn Thung Cung x Vn H l 109m v vn chuyn th cng ngang tuyn cho ng dy 0,4kV l 31m.


30


PHN VI KT LUN V KIN NGH Kt qa kho st s b phc v cho cng tc lp d n u t nm trong khu vc a hnh a mo vng min ni, cao thay i t 413m n 1123m c phn ct phc tp gm c 3 kiu a hnh: i ni cao v dc, a hnh i ni xen ln thung lng bng phng v rung bc thang. - Trong qu trnh o v phng tuyn cn phi pht tuyn phc v cho cng tc o v phng tuyn. - V iu kin giao thng: Tng i kh khn cho vic i li phc v cng tc kho st, khoan o. Sau khi tin hnh kho st s b phc v cng tc lp TKBVTC - DT Gi thu 03: T vn kho st lp TKBVTC-DT x X Vn H v x Lng Lunghuyn Mc Chu thuc D n u t: Cung cp in li quc gia cho ng bo cc dn tc tnh Sn La. nh gi cc s liu thu thp chng ti kt lun khi cng trnh u t xy dng a vo hot ng s gp phn n nh v nng cao i sng v vt cht, tinh thn cho ng bo cc dn tc trong vng d n. ngh ch u t xem xt ph duyt bo co kho st lm c s phc v cc bc lp h s thit k bn v thi cng v d ton ca Gi thu 03: T vn kho st lp TKBVTC-DT x Vn H v Lng Lung, huyn Mc Chu thuc d n: Cung cp in li quc gia cho ng bo cc dn tc tnh Sn La, trnh cc cp, cc ngnh xem xt ph duyt.


31

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