Dao Dinh Bac CAC CAN Bp THAM GIA: TS.. Dang Van Bao TS.. Quy hoach he thdng giao thong v$n tai 26 Chuang 2: Dac diem dia chat Nhimg dac trung chu yeu co dnh huang 28 true tiep den cdc
Trang 1D.4I HOC QL OC GIA HA NOI TRUONG DAI HOC KHOA HOC TU NHIEN
BAO CAO
DE TAI DAC BIET CAP DHQG:
NGHIEN CLTU TAI BIEN THIEN NHIEN TREN CO SO
PHUONG PHAP DlA MAO PHUC VU PHAT TRIEN 0 0 THJ
• • • • •
DAI DONG BANG VEN BIEN DA NANG - QUANG NGAI
MA SO: QG 99-10
CHU TRI: TS Dao Dinh Bac
CAC CAN Bp THAM GIA:
TS Dang Van Bao
TS Vu Van Phai ThS Cat Nguyen Hung
CN Nguyen Hieu
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2.UAA-'^^m^iih
HA NOm m 200
Trang 2MUC LUC
Tran Bao cao torn t^t
Muc luc 1
Ma dau 3 Chuofng 1: Dieu kien dia 1} ty nhien, kinh te, nhan van va dinh huong
quy hoach lanh tho dai ddng b^ng ven bien Da N^ng - Quang Ngai
1.1 Vi tri dialy 7
1.2 Khai quat ve son v ^ va cau triic dia hinh khu vuc 7
1.3 Dac diem khi h^u 11
1.4 Khai qudt ve mang ludi song su6i va dac diem thuy van 14
T4.T Dac diem mang song 14
T4.2 Dac diem che do thuy vdn 17
1.5 Dac di^m thd nhuang, tham thuc vat va tai nguyen khoang san 19
7.5.7 Thd nhuang 19
7.5.2 Lap phu thuc vat 19
7.5.7 Tdi nguyen khodng sdn 21
1.6 Dac diem kinh te, v ^ hoa, xa h6i 22
1.7 Dinh hu6ng quy hoach l6ng th^ kinh te - xa hoi viing Da N&ig - 22
Quang Ngai
1.7.1 CAc khu c6ng nghiep 24
1.7.2 Quy hoach he th6'ng do thi 26
1.7.3 Quy hoach he thdng giao thong v$n tai 26
Chuang 2: Dac diem dia chat (Nhimg dac trung chu yeu co dnh huang 28
true tiep den cdc dang tai bien thien nhien)
2.1 Dac trung thach hoc cua cac da tru6c Kainozoi 28
2.2 Dkc diem cac tr&n tich Kainozoi 31
2.3 Tan kien tao va dia dong luc hien dai 43
Chuang 3: Dac diem dia mao khu vuc nghien cuu 50
3.1 Khai quat ve ca'u true dia mao khu vuc 50
3.1 Dac diem cac kieu nguon goc dia hinh 52
J.2.7 Dia hinh niii liia 52
3.2.2 Dia hinh do hoc mdn tong hap 53
3.2.3 Dia hinh karst 55
3.2.4 Dia hinh dong chdy 56
3.2.5 Dia hinh nguon gdc song - bien 61
3.2.6 Dia hinh nguon gdc bien 62
3.2.~ Dia hinh nlidn sinh 6~
3.3 Lich sir phat trien dia hinh 71
Trang 33.3.1 Giai doan Neogen 71
3J.2 Giai doan De tir ' 72
Chuong 4: Tai bien tren dong b^ng ha luu cac song Thu Bon Tra "5
Khiic va viec canh bao chiing tren ca sa dia mao
4.1 Khai qudt chung 75
^.7.7 Khdi niem ve tai bien thien nhien 75
4.1.2 Tai bien thien nhien a khu vuc dong bdng ha luu cdc song Thu Bon 78
vd Trd Khuc
4.2 Tai bien lu lut va co so dia mao cho viec canh bao chiing 78
4.2.1 Hien trgng tai bien lit lut tren dong bdng hg luu cdc song Thu Bon 78
vd Trd Khiic
4.2.2 Cdc nhdn td dnh huang tai lii lan - 79
4.2.3 Khd ndixg nhdn biet muc do tdc dong lii lut thong qua su bien doi 81
cita dia hinh
4.2A Bdn do dia mgo chuyen de phuc vu cdnh bdo tai bien lii lut viing 96
Quang Nam - Qudng Ngdi
4.3 Tai bien xoi la - b6i tu viing ha luu s5ng va bd bi^n 112
4.3.1 Hien trgng xoi Id, boi tu viing hg luu cdc song Thu Bon vd Trd 112
Khuc
4.3.2 Ca sd dia mgo cho viec cdnh bdo tai bien do xoi la - boi tu viing hg 113
luu song
4.3.3 X5i la bd bien tit Dd Ndng den Qudng Ngdi 130
4.4 Tai bien do pha huy be mat da't bai trpng luc 137
4.4.1 Tai bien do trum la ddt 137
4.4.2 Tai Men do Iddd 140
4.4.1 Tai bien do qud trinh lun be mat ddt 140
Chuang 5: Danh gia cac dieu kien dia mao va tai bien cho quy hoach 141
va phat trien do thi
5.1 Ca so cua viec danh gia cac dieu kien dia mao va tai bien cho quy 141
hoach va phat tri^n do thi
5.2 Cac chl lieu danh gia dieu kien dia mao cho viec xac dinh mat bang 143
trong quy hoach va phat tri^n d6 thi d6ng bang Da Nang - Quang Ngai va
lan can
5.3 Phan viing dia mao cho quy hoach va phat trien d6 thi viing Da Nang 146
- Quang Ngai
5.3.1 D6ng bang Quang Nam - Da Nang 146
5.3.2 D6ng bang Quang Ngai 155
Ketluan 162 Tai lieu tham khao 164
Phu luc 167