- 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.
2. Thanh phan khao sat 14p TKBVTC DDK 0,4kV 35k
a) Khao sat dia hinh
- Do ye b6 sung mat cat doc, mat bang tuy6n DDK 0,4kV, 22kV, 35kV tai cac doan tuy6n hieu chinh (neu c6).
- Phuc hoi tuye'n (neu co) va cam cot trung gian. - Lap bao cao khdo sat dia hinh.
b) Khao sat dia chit - Tham do DCCT.
- Ldy mdu va thi nghi'01. - Do dien troy sudt cua dAt n6'n. - Lap bao cao khao sat dia chdt.
c) Khao sat Khi tugng - Thug van
- Thu thap va di6u tra bt) sung Khi tugng - Thug van. - Llap bao cao khao sat Khi tugng - Thug van.
a) Do ye 1)6' sung mat cat doc tuye'n DDK 22kV = 35kV (n6u co), ti le ngang 1/5000, tST le dimg 1/500.
b) Phuc hoi tuy6n, cam cOt trung gian
- Chi tin hanh phvc h6i tuy6n doi viii cac loan tuy6n da bi mat m6c.
Tie'n hanh sau khi thi6t ke da phan chia cot tren binh (16 hanh lang tuy6n va tren mat cat doc dua tUng vi tri cot thiet ke ra thuc dia bang may mac do clac dia hinh \Teri dC) chinh xac trong timg khoang neo:
- Tang vi tri cOt trung gian d6'u phai chon m6c be tong lOi thep viii Quy cach 5x5x 50cm.
- Cac vi tri cOt goc, cot neo, cOt vugt song da chon m6c tnr6c day bi hu hong, bi mat...phal do phvc hoi chon lai moc theo chi clan tai Khoan 3.1, Dieu nay.
c) Lap bao cao tong hop khdo sat dia hinh
- Tap hop so lieu trong bao ca.() trung gian khdo sat dia hinh va so lieu phuc ht)i tuyen, cam cOt trung gian, lap bao cao tong hop khdo sat dia hinh bao thuyet minh, cac phu luc, ban ve, ban tinh, bang tho'ng ke va cac tai lieu lien quan.
4. Khdo sat dia chat lap TKBVTC DDK 0,4kV = 35kV a) Tha.'m do DCCT
- Cac 116 khoan dao bo tri theo tim tuy6n DDK. St) lugng 116 khoan (k6 ca cac ho khoan/dao cua cacgiai 'Joan khdo sat), trung binh 3 km bO tri 1 ho khoan/dao doi ,v6i yang tuyen co dieu kien DCCT a muc dan gian va trung binh; Trung binh 2 km bo tri 01 h6 khoan/dao d/(Si viii yang tuye'n có di'eu ki@.1DCCT or muc phirc tap. Chieu sau ho khoan trung binh 3÷5m. Ne'u can thie't phai khoan sic') lugng nhi6'u han ho4c khoan ciao sau han phai luan chimg rO trong Nhiem vu khdo sat.
- Cac ho khoan uu tien bo tri or cot goc, cOt vugt va cac vi tri cOt dtr co di&I kin dia chat phirc tap, khac
- Rieng,cac vi tri cOt vugt song loin, vi tri cOt der 'mot, cOt neo ham, khoan 1 ho khoan. Chieu sau ho khoan can dugc luan chUng trong Nhim vu kith() sat.
b) Lk/ mau va thi nghi'01
- MAu &At da thy trong h6 khoan theo WIT lap dAt trung binh 1 loci dAt lAy 2 mAu dat nguyen dpg d8i viiidat dinh va mOt m'au cau true pha 114 doi viii dat reri.
- MA.0 mac thy trong ho khoan gap nuac ngam: trung binh 5km lAy mOt Tnreyng hop can lay man nuerc mat phai 14.n chimg rO trong Nhi#4n vu khao sat.
- Quy each mh d'At cid, m7au mac la'y va bao quail theo cac Quy dinh hien hanh. - Cac chi tieu phan tich thi nghiOlthuc hien theo yeu c'au CNTK va CNKS.
c) Lap bao cao khao sat dia chAt
- Ke't qua khdo sat dia chAt cong trinh thuye't minh, cac phv luc, ban ye, ban tinh, ket qua phan tich thi nghi'01 va cac tai lieu lien quan.