- DiL tra cap nhat cac DDK da xay clung giao cheo va di gan trong ph4m vi each vi tri tuyen DDK du kiL xay clung 20m.
5. Khdo sat Kh1 tuvng Thug van lap NCKT tuye'n cap din ngArn 110kV — 220k
a) Thu thap he thong h6a tai lieu hi0 c6
- Thu thap he thtmg h6a tai lieu quan trA.c khi tugng thily van cna cac Dai, Tram khi tugng. Thu th4p cac tai lieu tai cac tram khi tugng thily van phan lan, can tuyen cong trinh di qua de tinh toan cac thong so khi tugng thily van irng voi tan suit P=2%.
b) DiL tra khi tugng - thiiy van hil0 truong
- Dieu tra xac dinh muc nuac ngap hang nam vimg tuye'n di qua (muc nu& trung binh va mirc nuac 10n nhat theo tan suit thiet ke P=2%, thoi gian ngap lut...) cac hien tugng khi tugng nhu: dong, bao, set...
- DiL tra do dac muc nu& mua k*, muc nu& mua mua, muc nuac 16.n nhAt, muc nuo.c lu lich sir thei gian duy tri muc nuO.c cao nhk, dinh gia su boi 16. 2 ben be. song tai doan tuyen vugt song, dieu tra chieu cao tau thuyen ten doan vugt song, kenh....Dua len mat cat doe so lieu do dac muc nuoc cao nhat va ghi rCi ngay, gio. do.
c) Lap bao cao khan sat khi tucmg thily van
- K6t qua khdo sat khi tugng thily van g'Om: thuy'et minh, cac phu luc, ban ye, ban tinh, va cac tai lieu lien quan.
6. Bao cao ket qua khan sat xay dung phuc vu lap NCKT
Bao cao ke't qua khao sat xay dung dam bao cac not dung nhu Quy dinh tai Khoan 6, Dieu 43 dm Quy dinh nay. Bien the Bao cao ket qua kith) sat xay dumg tham khdo phan Phu luc.
Dieu 56. Khao sat 14p TKKT Tuyen cap dien ngAm 110kV — 220kV
1. Muc dish
Cung cap cac tai lieu khao sat day du, chi ti& ve dia hanh, dia chat, khi tugng - thny van cna tuyen cap din ngam dirge chon va phe duy* lam co. s& tinh toan cac giai phap thiet ke, to chirc xay dung va lap tong du. toan.
a) Khdo sat dia hinh
- Do ban c16 hi/0 trang tS7 l,' 1/1000, do ye 14 mat cat doc/ mat cat ngang cac doan tuyen diL chinh (neu co).
- Mua, Op nhat so li0 ding trinh ngam (13.6 sung ne'u co), khao sat diL tra bo sung va 14 cac bang th6ng ke doc theo tuyen cap di/0 ngam.
- Lap bao cao khdo sat dia hinh. b) Khao sat dia chAt
- Tham do DCCT.
- Ldy mdu va thi nghi@n. - Do di@l to suit cila da't n'en.
- Khao sat ngu'on vat HO xay dung dia phuong. - L4p bao cao khao sat dia chit.
c) Khao sat Khi tuvng - Thug van
- Thu th4p va diL tra bO sung cac thong s6 Khi tuong - Thug van. - Lap bao cao khao sat Khi tuning - Thug van.
3. Khao sat dia hinh lap TKKT tuye'n cap din nagAm 110kV — 220kV
a) Do ban d6 hien trang tST W 1/1000; do ye lap mat cat doc, mat cat ngang cac Joan tuyen giao cat vad cac cong trinh khac tS7W ngang 1:2000; dung 1:200.
b) Gfri van ban an cac ca quan quan 1)", cong trinh ngAm hi'n him mua, clap nhat bo sung so 1* cong trinh ngam (cap thoat nuac, thong tin lien lac, &rang din luc va cac cong trinh ngam khac....) doc theo tuyen cap ngam.
c) Di6'u tra bO sung, th6ng ke va cap nhat day du cac phat sinh teen mat bang, mat cat ngang, mat cat doc cac cong trinh ngam: cong trinh cap thoat nuac (ghi r(-5 duang kinh Ong nuac, ket cau Ong nuac be tong thep...), Ong trinh cap ngam di/0 luc (ghi 113 cap din ap va ket cau...), cap ngam buu d*)., cap quang, cac &rang Ong ha tang ky thuat khac.
d) Lap bao cao khao sat dia hinh Om: thuyet minh, cac phu luc, ban ve, ban tinh, cac tai lieu lien quan.
4. Khdo sat dia chAt lap TKKT tuye'n cap di/0 ng'am 110kV — 220kV a) Tham do. DCCT
- ViIng tuy6n có diL kin DCCT of mirc don gian va trung binh: Tinh ca cac h6 khoan/dao dä co a giai clop NCKT, trung binh lkm tuyen doing day cap ngam bO tri 1 ho khoan/dao; Cac ho khoan/dao tham do uu tien bO tri vao vi tri ham not cap, diem dau, diem cuoi, clop vuot song, kenh va a nhung dia diem có mat cat dia chat cong trinh dai d*i.
- \Tung tuyen có diL kin DCCT a mix phirc tap: Tinh ca cac ho khoan/dao d'a có a giai doan NCKT, trung binh 0,5km tuyen throng day cap ng'am bo tri 1 ho khoan/dao. Cac h6 khoan/dao tham do uu tien bO tri vao vi tri hAm not cap, diem d'au,
diem cu6i, clop vugt song, kenh va or nhang dia diem c6 mat cat dia chAt cong trinh dai di/O.
- Chi'eu sau h'6 khoan/dao phv thuc vao cAu tao dia chit tai vi tri khao sat, loci cong trinh phia ben tren va Alp lac chang len nen dat. chung chieu sau ho khoan can khoan sau ban dori chiu tai dm nen. Chieu sau ho khoan timg vi tri cu the can dugc Juan chimg trong Nhie;m vv khao sat tren co. sor tham MIA° cac ho khoan trong giai doan truac.
b) Do dien troy suit dA.t nen
- Sir dung pluming phap do sau din xac dinh tro. suit cua dAt Viing tuyen co dieu kien DCCT or mire don gian va trung binh khong can bo sung them diem do; Wing tuyen co dieu kien DCCT, mirc phirc tap thi phai bo sung them diem do 6. cac vi tri ham cap, cac vi tri dau not cap ngam vori &row day khong, vi tri cot vugt song.
c) LAy mau va thi nghi411.
- L'Ay mau nguyen clang ho;dc khong nguyen ding cho tat ca cac lOrp ,dia tang trong cac lo khoan tham do. Truemg hop, ho khoan co 1 lop dia tang hoc co be day lap 16.n horn 3m thi trung binh cir them 3m lay mot mau thi nghi@n.
- So lugng mau de phan tich thi thi nghim bo sung cho cac lorp dia tang neu c6 sir khac bia so vai mau or giai clop NCKT. Thong thuemg, trung binh moi ho khoan/ciao du kien CO 01 +02 mau dugc thi nghiem. Doi vai cac vimg DCCT don gian, su sai khac gitra cac mau khong loin, c6 the giarn khoi lugng mau thi ngh*n.
- Quy cach lay mau clAt, da va bao quan thuc hien theo Quy dinh hi/0 hanh. - Cac chi tieu phan tich thi nghi01 mau dAt da thuc hien theo yeu c'au cua ky su chuyen nganh xay dung thong qua CNTK va CNKS dugc xac dinh ro trong Nhi01 vv khao sat.
- So lugng mau nuac ngam, nuo.c mat can lAy 1,6 sung theo phan vimg dia chAt or tirng clop tuyen. Truemg hgp tuyen nam trong 1 vimg nuac ngam hoc nuo.c mat thi khong can xac dinh them ma dung ket qua da khao sat trong giai doan truerc. Ngoai ra can lay them mau nu& mat vimg lan can tuyen de phan tich nuac dung cho Be tong xay dung cong trinh.
d) Khao sat nguon vat lieu xay dung dia phucmg
- Di6'u tra thuc dia hien trang cac ngu6n VLXD dia phuung ding nhu ti6'm nang nguon VLXD trong khu vac du an va vimg lan can.
- Danh gia tong th6 ve chAt lugng, tit lugng va cu ly cac ngu'on VLXD. e) Lap bao cao MIA() sat dia eh&
- Ke't qua khao sat dia chAt cong trinh g'om: thuye't minh, the phv lac, ban ve, ban tinh, ket qua phan tich thi nghiem va cac tai lieu lien quan.
5. Khao sat KTTV lap TKKT Tuy& cap di/0 ngam 110kV — 220kV
- Thu thap b6 sung he th6ng hoa tai lieu quan trac khi Wong thily van dm the dai, tram khi tuning they van Quoc gia du dam bao dai dien cho khu vue du an de tinh toan chuan xac hoa cac thong so khi tuvng thily van.
- Di'eu tra b6 sung, thu thap s6 lieu cac hien tuong khi tuong thily van: Gio bao, mua, giong set, nh* do, muc nuac viing ngap fing lan nhat, nho nhat hang nam, thei gian duy tri trong nam.
- Do dac muc nu& song tai clop vuot song, di&i,tra muc nu& nhAt va cac loci phuo!ng tin giao thong di,lai tren song ghi ro chieu cao nhat buon, cot ang ten..., ngay thang do so dieu tra do dac muc nu& song, nitre nuac \rang ngap lut the hi"e'n day du len mat cat doc tuyen DDK.
b) Lap bao cao khao sat khi Wong thily van bao g6m: thuye't minh, cac phu ban ve, ban tinh va cac tai lieu lien quan.