{"id":15321,"date":"2022-05-10T06:54:12","date_gmt":"2022-05-10T06:54:12","guid":{"rendered":"https:\/\/ixox.net\/?p=15321"},"modified":"2024-07-18T15:35:36","modified_gmt":"2024-07-18T08:35:36","slug":"leo-dao-la-gi","status":"publish","type":"post","link":"https:\/\/ixox.net\/leo-dao-la-gi\/","title":{"rendered":"Hi\u1ec7n t\u01b0\u1ee3ng l\u1eb9o dao l\u00e0 g\u00ec? Nguy\u00ean nh\u00e2n, \u1ea3nh h\u01b0\u1edfng v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c"},"content":{"rendered":"

Trong b\u00e0i vi\u1ebft n\u00e0y, h\u00e3y c\u00f9ng Tinh H\u00e0<\/a> t\u00ecm hi\u1ec3u v\u1ec1 hi\u1ec7n t\u01b0\u1ee3ng l\u1eb9o dao, nguy\u00ean nh\u00e2n v\u00e0 \u1ea3nh h\u01b0\u1edfng c\u1ee7a l\u1eb9o dao \u0111\u1ebfn qu\u00e1 tr\u00ecnh c\u1eaft g\u1ecdt nh\u01b0 th\u1ebf n\u00e0o, c\u0169ng nh\u01b0 nh\u1eefng c\u00e1ch kh\u1eafc ph\u1ee5c v\u1ea5n \u0111\u1ec1 n\u00e0y.<\/span><\/p>\n

\"Hi\u1ec7n<\/p>\n

Hi\u1ec7n t\u01b0\u1ee3ng l\u1eb9o dao l\u00e0 g\u00ec?<\/b><\/span><\/h2>\n

Hi\u1ec7n t\u01b0\u1ee3ng l\u1eb9o dao (Built Up Edge -BUE) l\u00e0 s\u1ef1 t\u00edch t\u1ee5 c\u1ee7a v\u1eadt li\u1ec7u ph\u00f4i tr\u00ean m\u1eb7t tr\u01b0\u1edbc c\u1ee7a dao c\u1eaft, t\u1ea1o th\u00e0nh m\u1ed9t c\u1ee5c kim lo\u1ea1i b\u00e1m ch\u1eafc v\u00e0o l\u01b0\u1ee1i c\u1eaft c\u1ee7a dao, bi\u1ebfn n\u00f3 th\u00e0nh m\u1ed9t l\u01b0\u1ee1i c\u1eaft m\u1edbi thay cho l\u01b0\u1ee1i c\u1eaft th\u1ef1c t\u1ebf. C\u1ee5c kim lo\u1ea1i n\u00e0y c\u00f3 \u0111\u1eb7c t\u00ednh v\u00e0 c\u1ea5u tr\u00fac kh\u00e1c v\u1edbi v\u1eadt li\u1ec7u gia c\u00f4ng v\u00e0 v\u1eadt li\u1ec7u c\u1ee7a dao c\u1eaft.\u00a0<\/span><\/p>\n

K\u00edch th\u01b0\u1edbc c\u1ee7a c\u1ee5c l\u1eb9o dao kh\u00f4ng \u0111\u1ed3ng nh\u1ea5t, c\u00f3 l\u00fac l\u1edbn, l\u00fac nh\u1ecf kh\u00e1c nhau, t\u00e1ch bi\u1ec7t v\u1edbi phoi<\/a> v\u00e0 c\u0169ng c\u00f3 th\u1ec3 xu\u1ea5t hi\u1ec7n hay bi\u1ebfn m\u1ea5t h\u00e0ng ch\u1ee5c l\u1ea7n trong m\u1ed9t gi\u00e2y. L\u1eb9o dao x\u1ea3y ra c\u1ea3 tr\u00ean nguy\u00ean c\u00f4ng phay<\/a> v\u00e0 ti\u1ec7n<\/a> hay nh\u1eefng nguy\u00ean c\u00f4ng kh\u00e1c.<\/span><\/p>\n

Nguy\u00ean nh\u00e2n g\u00e2y ra l\u1eb9o dao<\/b><\/span><\/h2>\n

Trong gia c\u00f4ng c\u00e1c kim lo\u1ea1i d\u1ebbo ch\u1eb3ng h\u1ea1n nh\u01b0 th\u00e9p c\u00f3 \u0111\u1ed9 d\u00e0i ti\u1ebfp x\u00fac gi\u1eefa phoi v\u00e0 dao l\u1edbn, \u1ee9ng su\u1ea5t v\u00e0 nhi\u1ec7t \u0111\u1ed9 ph\u00e1t sinh t\u1ea1i v\u00f9ng ti\u1ebfp x\u00fac gi\u1eefa phoi v\u00e0 dao. D\u01b0\u1edbi \u1ee9ng su\u1ea5t v\u00e0 nhi\u1ec7t \u0111\u1ed9 cao nh\u01b0 v\u1eady gi\u1eefa hai b\u1ec1 m\u1eb7t kim lo\u1ea1i, li\u00ean k\u1ebft m\u1ea1nh c\u00f3 th\u1ec3 x\u1ea3y ra t\u1eadp trung t\u1ea1i m\u1eb7t tr\u01b0\u1edbc dao c\u1eaft do s\u1ef1 k\u1ebft d\u00ednh t\u01b0\u01a1ng t\u1ef1 nh\u01b0 h\u00e0n c\u1ee7a v\u1eadt li\u1ec7u phoi v\u00e0 v\u1eadt li\u1ec7u ch\u1ebf t\u1ea1o dao. S\u1ef1 k\u1ebft d\u00ednh n\u00e0y c\u00e0ng d\u1ec5 x\u1ea3y ra n\u1ebfu gi\u1eefa v\u1eadt li\u1ec7u ph\u00f4i v\u00e0 v\u1eadt li\u1ec7u ch\u1ebf t\u1ea1o d\u1ee5ng c\u1ee5 c\u1eaft c\u00f3 \u0111\u1ed9 b\u00e1m d\u00ednh ho\u1eb7c c\u00f3 \u0111\u1ed9 h\u00f2a tan v\u1edbi nhau. N\u00f3 c\u0169ng \u1ea3nh h\u01b0\u1edfng b\u1edfi bi\u1ebfn d\u1ea1ng d\u1ebbo c\u1ee7a v\u1eadt li\u1ec7u ph\u00f4i v\u00e0 ma s\u00e1t gi\u1eefa m\u1eb7t tr\u01b0\u1edbc c\u1ee7a dao v\u00e0 phoi. M\u1ed1i k\u1ebft d\u00ednh b\u1eaft \u0111\u1ea7u h\u00ecnh th\u00e0nh \u1edf m\u1ed9t v\u1ecb tr\u00ed thu\u1eadn l\u1ee3i nh\u1ea5t v\u00e0 sau \u0111\u00f3 d\u1ea7n d\u1ea7n t\u00edch t\u1ee5 ph\u00e1t tri\u1ec3n nh\u01b0 th\u1ec3 hi\u1ec7n trong h\u00ecnh \u1ea3nh d\u01b0\u1edbi.<\/span><\/p>\n

\"Hi\u1ec7n<\/p>\n

D\u01b0\u1edbi s\u1ef1 l\u1edbn l\u00ean c\u1ee7a c\u1ee5c l\u1eb9o dao, l\u1ef1c F c\u0169ng t\u0103ng l\u00ean d\u1ea7n d\u1ea7n do t\u00e1c \u0111\u1ed9ng n\u00eam c\u1ee7a m\u0169i dao v\u1edbi c\u1ee5c l\u1eb9o dao h\u00ecnh th\u00e0nh tr\u00ean n\u00f3. B\u1ea5t c\u1ee9 khi n\u00e0o l\u1ef1c F v\u01b0\u1ee3t qu\u00e1 l\u1ef1c li\u00ean k\u1ebft c\u1ee7a c\u1ee5c l\u1eb9o dao, n\u00f3 s\u1ebd b\u1ecb v\u1ee1 ra v\u00e0 b\u1ecb phoi cu\u1ed1n \u0111i. Sau \u0111\u00f3, m\u1ed9t l\u1ea7n n\u1eefa c\u1ee5c l\u1eb9o dao m\u1edbi l\u1ea1i b\u1eaft \u0111\u1ea7u h\u00ecnh th\u00e0nh. \u0110i\u1ec1u n\u00e0y c\u1ee9 l\u1eb7p \u0111i l\u1eb7p l\u1ea1i. C\u00e1c b\u1ea1n c\u00f3 th\u1ec3 h\u00ecnh dung r\u00f5 h\u01a1n v\u1ec1 qu\u00e1 tr\u00ecnh h\u00ecnh th\u00e0nh l\u1eb9o dao t\u1ea1i video sau.<\/span><\/p>\n

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Nh\u1eefng y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng l\u1eb9o dao<\/b><\/span><\/h2>\n

T\u1ed1c \u0111\u1ed9 c\u1eaft trong gia c\u00f4ng<\/b><\/span><\/h3>\n
\"T\u1ed1c
Quan h\u1ec7 t\u1ed1c \u0111\u1ed9 h\u00ecnh th\u00e0nh v\u00e0 m\u1ea5t c\u1ee7a l\u1eb9o dao v\u1edbi chi\u1ec1u cao l\u1eb9o dao<\/figcaption><\/figure>\n

Trong gia c\u00f4ng, t\u1ed1c \u0111\u1ed9 c\u1eaft th\u1ea5p kh\u00f4ng h\u00ecnh th\u00e0nh l\u1eb9o dao (khu v\u1ef1c I) do kh\u00f4ng \u0111\u1ee7 nh\u1eefng \u0111i\u1ec1u ki\u1ec7n v\u1ec1 nhi\u1ec7t \u0111\u1ed9, c\u00f2n v\u1edbi t\u1ed1c \u0111\u1ed9 c\u1eaft cao (khu v\u1ef1c IV) th\u00ec s\u1ebd kh\u00f4ng c\u00f2n l\u1eb9o dao b\u1edfi th\u1eddi gian \u0111\u1ec3 h\u00ecnh th\u00e0nh s\u1ef1 b\u00e1m d\u00ednh s\u1ebd \u00edt \u0111i n\u00ean l\u1eb9o dao m\u1ea5t \u0111i. \u1ede ph\u1ea1m vi t\u1ed1c \u0111\u1ed9 c\u1eaft t\u1eeb kho\u1ea3ng 10 – 30 m\/ph (khu v\u1ef1c III) t\u1ed1c \u0111\u1ed9 c\u1eaft t\u0103ng th\u00ec chi\u1ec1u cao l\u1eb9o dao t\u0103ng. \u1ede ph\u1ea1m vi t\u1ed1c \u0111\u1ed9 c\u1eaft v\u00f9ng III, t\u0103ng t\u1ed1c \u0111\u1ed9 c\u1eaft th\u00ec l\u1eb9o dao gi\u1ea3m d\u1ea7n v\u00e0 bi\u1ebfn m\u1ea5t.<\/span><\/p>\n

V\u1eadt li\u1ec7u gia c\u00f4ng<\/b><\/span><\/h3>\n
\"Quan
Quan h\u1ec7 gi\u1eefa l\u1eb9o dao v\u00e0 \u0111\u1eb7c t\u00ednh v\u1eadt li\u1ec7u gia c\u00f4ng<\/figcaption><\/figure>\n

\u0110\u1ed1i v\u1edbi v\u1eadt li\u1ec7u gia c\u00f4ng c\u00f3 t\u00ednh gi\u00f2n th\u00ec phoi d\u1ec5 b\u1ecb ph\u00e1 h\u1ee7y v\u00e0 \u0111\u1ee9t ra s\u1edbm n\u00ean kh\u00f3 h\u00ecnh th\u00e0nh l\u1eb9o dao. \u0110\u1ed1i v\u1edbi v\u1eadt li\u1ec7u gia c\u00f4ng c\u00f3 \u0111\u1ed9 d\u1ebbo th\u00ec hi\u1ec7n t\u01b0\u1ee3ng l\u1eb9o dao s\u1ebd h\u00ecnh th\u00e0nh, v\u00e0 t\u00ednh d\u1ebbo c\u1ee7a v\u1eadt li\u1ec7u kh\u00e1c nhau s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u1ed1c \u0111\u1ed9 h\u00ecnh th\u00e0nh l\u1eb9o dao c\u0169ng nh\u01b0 chi\u1ec1u cao l\u1eb9o dao.<\/span><\/p>\n

Chi\u1ec1u d\u00e0y c\u1eaft<\/b><\/span><\/h3>\n
\"Quan
Quan h\u1ec7 gi\u1eefa chi\u1ec1u d\u00e0y c\u1eaft a v\u1edbi t\u1ed1c \u0111\u1ed9 h\u00ecnh th\u00e0nh v\u00e0 chi\u1ec1u cao l\u1eb9o dao<\/figcaption><\/figure>\n

Chi\u1ec1u d\u00e0y c\u1eaft a c\u00e0ng l\u1edbn, t\u1ed1c \u0111\u1ed9 \u0111\u1ec3 h\u00ecnh th\u00e0nh l\u1eb9o dao c\u00e0ng th\u1ea5p v\u00e0 chi\u1ec1u cao l\u1eb9o dao c\u00e0ng cao.<\/span><\/p>\n

G\u00f3c tr\u01b0\u1edbc \u03b3<\/b><\/span><\/h3>\n

\"D\u1ea1ng<\/p>\n

\"Quan
Quan h\u1ec7 gi\u1eefa \u03b3 v\u1edbi t\u1ed1c \u0111\u1ed9 h\u00ecnh th\u00e0nh v\u00e0 chi\u1ec1u cao l\u1eb9o dao<\/figcaption><\/figure>\n

G\u00f3c tr\u01b0\u1edbc \u03b3 c\u00e0ng cao th\u00ec t\u1ed1c \u0111\u1ed9 c\u1eaft \u0111\u1ec3 h\u00ecnh th\u00e0nh l\u1eb9o dao c\u00e0ng cao v\u00e0 chi\u1ec1u cao l\u1eb9o dao c\u00e0ng nh\u1ecf. D\u1ef1a v\u00e0o y\u1ebfu t\u1ed1 n\u00e0y m\u00e0 ng\u01b0\u1eddi ta s\u1ebd \u0111i\u1ec1u ch\u1ec9nh g\u00f3c tr\u01b0\u1edbc \u03b3 ph\u00f9 h\u1ee3p khi gia c\u00f4ng, \u0111i\u1ec1u n\u00e0y s\u1ebd \u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y chi ti\u1ebft h\u01a1n \u1edf ph\u1ea7n sau.<\/span><\/p>\n

\u1ea2nh h\u01b0\u1edfng c\u1ee7a l\u1eb9o dao \u0111\u1ebfn qu\u00e1 tr\u00ecnh c\u1eaft g\u1ecdt nh\u01b0 th\u1ebf n\u00e0o?<\/b><\/span><\/h2>\n

Hi\u1ec7n t\u01b0\u1ee3ng l\u1eb9o dao v\u1ec1 c\u01a1 b\u1ea3n l\u00e0 mang l\u1ea1i nh\u1eefng \u1ea3nh h\u01b0\u1edfng ti\u00eau c\u1ef1c t\u1edbi qu\u00e1 tr\u00ecnh c\u1eaft g\u1ecdt gia c\u00f4ng kim lo\u1ea1i. Nh\u1eefng \u1ea3nh h\u01b0\u1edfng \u0111\u00f3 bao g\u1ed3m:<\/span><\/p>\n