Nguy\u00ean t\u1eafc ch\u1ecdn: nh\u00ecn v\u00e0o v\u1eadt s\u1ebd neo v\u00e0o t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng, kh\u00f4ng ch\u1ecdn theo gi\u00e1. M\u00f3c nh\u1ecf m\u00e0 hi\u1ec7n tr\u01b0\u1eddng ch\u1ec9 c\u00f3 gi\u00e0n gi\u00e1o \u1ed1ng th\u00ec c\u00f4ng nh\u00e2n s\u1ebd bu\u1ed9c d\u00e2y v\u00f2ng quanh \u1ed1ng r\u1ed3i m\u00f3c ng\u01b0\u1ee3c v\u00e0o ch\u00ednh d\u00e2y. C\u00e1ch l\u00e0m \u0111\u00f3 l\u00e0m gi\u1ea3m nghi\u00eam tr\u1ecdng kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ef1c v\u00e0 l\u00e0 nguy\u00ean nh\u00e2n c\u1ee7a nhi\u1ec1u tai n\u1ea1n.<\/p>\n
S\u1ee9c ch\u1ecbu c\u1ee7a \u0111i\u1ec3m neo l\u00e0 con s\u1ed1 \u0111i k\u00e8m v\u1edbi c\u00e1ch m\u00f3c. OSHA 1926.502 \u0111\u1eb7t m\u1ee9c 5.000 lb, t\u01b0\u01a1ng \u0111\u01b0\u01a1ng 22,2 kN, cho m\u1ed7i ng\u01b0\u1eddi treo v\u00e0o m\u1ed9t \u0111i\u1ec3m neo; m\u1ee9c n\u00e0y ch\u1ec9 \u0111\u01b0\u1ee3c h\u1ea1 xu\u1ed1ng khi \u0111i\u1ec3m neo do ng\u01b0\u1eddi \u0111\u1ee7 chuy\u00ean m\u00f4n thi\u1ebft k\u1ebf v\u00e0 gi\u00e1m s\u00e1t, v\u1edbi h\u1ec7 s\u1ed1 an to\u00e0n t\u1ed1i thi\u1ec3u b\u1eb1ng hai. M\u1ed9t \u0111o\u1ea1n gi\u00e0n gi\u00e1o \u1ed1ng bu\u1ed9c t\u1ea1m kh\u00f4ng c\u00f3 con s\u1ed1 n\u00e0o t\u01b0\u01a1ng \u0111\u01b0\u01a1ng, v\u00e0 \u0111\u00f3 l\u00e0 l\u00fd do k\u1ef9 thu\u1eadt \u0111\u1ee9ng sau vi\u1ec7c c\u1ea5m m\u00f3c ng\u01b0\u1ee3c d\u00e2y v\u00e0o ch\u00ednh n\u00f3.<\/p>\n
Tr\u1ecdng l\u01b0\u1ee3ng l\u00e0 m\u1ed9t \u01b0u \u0111i\u1ec3m n\u1eefa c\u1ee7a m\u00f3c nh\u1ecf. Hai m\u00f3c \u0111\u1ea1i b\u1eb1ng th\u00e9p treo l\u1ee7ng l\u1eb3ng tr\u01b0\u1edbc ng\u1ef1c su\u1ed1t ca l\u00e0m ng\u01b0\u1eddi th\u1ee3 m\u1ecfi vai r\u00f5 r\u1ec7t v\u00e0 hay va v\u00e0o k\u1ebft c\u1ea5u khi lu\u1ed3n ng\u01b0\u1eddi qua khe h\u1eb9p. \u1ede nh\u00e0 x\u01b0\u1edfng \u0111\u00e3 c\u00f3 s\u1eb5n \u0111i\u1ec3m neo, m\u00f3c nh\u1ecf g\u1ecdn h\u01a1n h\u1eb3n v\u00e0 c\u0169ng d\u1ec5 quan s\u00e1t xem ch\u1ed1t \u0111\u00e3 c\u00e0i k\u00edn ch\u01b0a.<\/p>\n
![\"B\u1ed9](\"https:\/\/www.baohoxanh.com\/blog\/wp-content\/uploads\/2021\/02\/day-dai-an-toan-.jpg\" "\\"\\"")
<\/p>\n
\u0110o Ng\u01b0\u1eddi Tr\u01b0\u1edbc Khi Ch\u1ecdn C\u1ee1 D\u00e2y \u0110ai<\/h2>\n
\u0110ai to\u00e0n th\u00e2n \u0111\u01b0\u1ee3c b\u00e1n theo c\u1ee1, kh\u00f4ng ph\u1ea3i m\u1ed9t c\u1ee1 cho m\u1ecdi ng\u01b0\u1eddi. Ph\u1ea1m vi ch\u1ec9nh c\u1ee7a t\u1eebng c\u1ee1 c\u00f3 gi\u1edbi h\u1ea1n, v\u00e0 khi ng\u01b0\u1eddi m\u1eb7c n\u1eb1m ngo\u00e0i ph\u1ea1m vi \u0111\u00f3 th\u00ec kh\u00f4ng c\u00e1ch n\u00e0o si\u1ebft cho v\u1eeba \u0111\u01b0\u1ee3c. B\u1ed1n s\u1ed1 \u0111o c\u1ea7n l\u1ea5y tr\u01b0\u1edbc khi \u0111\u1eb7t l\u00f4:<\/p>\n
- \n
- Chi\u1ec1u cao v\u00e0 c\u00e2n n\u1eb7ng:<\/strong> hai s\u1ed1 c\u01a1 b\u1ea3n nh\u00e0 s\u1ea3n xu\u1ea5t d\u00f9ng \u0111\u1ec3 chia c\u1ee1.<\/li>\n
- V\u00f2ng ng\u1ef1c \u0111o khi \u0111\u00e3 m\u1eb7c \u0111\u1ee7 l\u1edbp \u00e1o l\u00e0m vi\u1ec7c:<\/strong> \u0111o tr\u00ean ng\u01b0\u1eddi m\u1eb7c \u00e1o m\u1ecfng r\u1ed3i \u0111\u1eb7t h\u00e0ng l\u00e0 l\u00fd do nhi\u1ec1u b\u1ed9 ch\u1eadt v\u00e0o m\u00f9a l\u1ea1nh.<\/li>\n
- V\u00f2ng \u0111\u00f9i:<\/strong> quy\u1ebft \u0111\u1ecbnh chi\u1ec1u d\u00e0i b\u1ea3n \u0111ai \u0111\u00f9i v\u00e0 v\u1ecb tr\u00ed kho\u00e1 c\u00e0i.<\/li>\n
- Kh\u1ed1i l\u01b0\u1ee3ng d\u1ee5ng c\u1ee5 mang theo ng\u01b0\u1eddi:<\/strong> t\u00fai \u0111\u1ed3 ngh\u1ec1, m\u00e1y khoan v\u00e0 v\u1eadt t\u01b0 \u0111eo tr\u00ean \u0111ai \u0111\u1ec1u t\u00ednh v\u00e0o t\u1ea3i tr\u1ecdng m\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f4ng b\u1ed1.<\/li>\n<\/ul>\n
H\u1ea1n m\u1ee9c t\u1ea3i tr\u1ecdng ghi tr\u00ean nh\u00e3n l\u00e0 t\u1ed5ng c\u1ee7a ng\u01b0\u1eddi c\u1ed9ng d\u1ee5ng c\u1ee5 ch\u1ee9 kh\u00f4ng ph\u1ea3i ri\u00eang c\u00e2n n\u1eb7ng c\u01a1 th\u1ec3. \u0110i\u1ec1u n\u00e0y \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp t\u1edbi th\u1ee3 c\u01a1 \u0111i\u1ec7n mang nhi\u1ec1u \u0111\u1ed3 l\u00ean cao. N\u1ebfu t\u1ed5ng v\u01b0\u1ee3t h\u1ea1n m\u1ee9c, ph\u1ea3i \u0111\u1ed5i sang d\u00f2ng c\u00f3 c\u00f4ng b\u1ed1 cao h\u01a1n ch\u1ee9 kh\u00f4ng ch\u1ec9nh d\u00e2y ch\u1eb7t th\u00eam cho ch\u1eafc.<\/p>\n
Ng\u01b0\u1ee1ng t\u1ed5ng t\u1ea3i c\u0169ng \u0111\u01b0\u1ee3c vi\u1ebft th\u00e0nh con s\u1ed1. OSHA 1910.140 t\u00ednh c\u00e1c tr\u1ecb s\u1ed1 c\u1ee7a h\u1ec7 ch\u1ed1ng r\u01a1i cho m\u1ed9t ng\u01b0\u1eddi c\u1ed9ng d\u1ee5ng c\u1ee5 d\u01b0\u1edbi 140 kg; v\u01b0\u1ee3t ng\u01b0\u1ee1ng \u0111\u00f3 th\u00ec ph\u1ea3i chuy\u1ec3n sang d\u00f2ng c\u00f3 c\u00f4ng b\u1ed1 ri\u00eang cho d\u1ea3i t\u1ea3i cao h\u01a1n, v\u00e0 c\u1ea3 d\u00e2y n\u1ed1i l\u1eabn thi\u1ebft b\u1ecb h\u00e3m \u0111\u1ec1u ph\u1ea3i \u0111\u1ed5i theo. Khi l\u1ea5y s\u1ed1 \u0111o cho c\u1ea3 t\u1ed5, n\u00ean th\u00eam m\u1ed9t c\u1ed9t ghi kh\u1ed1i l\u01b0\u1ee3ng \u0111\u1ed3 ngh\u1ec1 mang tr\u00ean ng\u01b0\u1eddi \u0111\u1ec3 bi\u1ebft ai n\u1eb1m ngo\u00e0i d\u1ea3i n\u00e0y.<\/p>\n
Tr\u00ecnh T\u1ef1 M\u1eb7c \u0110ai To\u00e0n Th\u00e2n \u0110\u00fang C\u00e1ch<\/h2>\n
M\u1eb7c sai th\u1ee9 t\u1ef1 l\u00e0 l\u00fd do ph\u1ed5 bi\u1ebfn nh\u1ea5t khi\u1ebfn v\u00f2ng ch\u1eef D n\u1eb1m l\u1ec7ch. S\u00e1u b\u01b0\u1edbc d\u01b0\u1edbi \u0111\u00e2y m\u1ea5t ch\u01b0a t\u1edbi hai ph\u00fat v\u00e0 \u0111\u01b0a \u0111\u01b0\u1ee3c v\u00e0o hu\u1ea5n luy\u1ec7n \u0111\u1ea7u ca:<\/p>\n
- \n
- C\u1ea7m v\u00f2ng ch\u1eef D sau l\u01b0ng nh\u1ea5c b\u1ed9 \u0111ai l\u00ean, r\u0169 cho c\u00e1c b\u1ea3n \u0111ai bu\u00f4ng th\u1eb3ng, g\u1ee1 h\u1ebft ch\u1ed7 xo\u1eafn.<\/li>\n
- Kho\u00e1c hai b\u1ea3n vai nh\u01b0 m\u1eb7c \u00e1o gi\u00e1p, \u0111\u1ec3 v\u00f2ng ch\u1eef D r\u01a1i v\u00e0o gi\u1eefa l\u01b0ng.<\/li>\n
- Lu\u1ed3n hai b\u1ea3n \u0111ai \u0111\u00f9i t\u1eeb sau ra tr\u01b0\u1edbc, c\u00e0i kho\u00e1, ki\u1ec3m xem hai b\u1ea3n c\u00f3 b\u1ecb ch\u00e9o nhau kh\u00f4ng.<\/li>\n
- C\u00e0i \u0111ai ng\u1ef1c, k\u00e9o v\u1ec1 \u0111\u00fang t\u1ea7m gi\u1eefa th\u00e2n tr\u00ean ch\u1ee9 kh\u00f4ng \u0111\u1ec3 s\u00e1t c\u1ed5.<\/li>\n
- Si\u1ebft l\u1ea7n l\u01b0\u1ee3t \u0111ai \u0111\u00f9i r\u1ed3i m\u1edbi t\u1edbi \u0111ai vai, v\u00ec si\u1ebft vai tr\u01b0\u1edbc s\u1ebd k\u00e9o v\u00f2ng ch\u1eef D l\u00ean qu\u00e1 cao.<\/li>\n
- Nh\u1edd ng\u01b0\u1eddi \u0111\u1ee9ng sau ki\u1ec3m v\u1ecb tr\u00ed v\u00f2ng ch\u1eef D, v\u00ec ch\u00ednh ng\u01b0\u1eddi m\u1eb7c kh\u00f4ng nh\u00ecn \u0111\u01b0\u1ee3c ch\u1ed7 \u0111\u00f3.<\/li>\n<\/ol>\n
B\u01b0\u1edbc cu\u1ed1i c\u0169ng l\u00e0 b\u01b0\u1edbc r\u1ebb nh\u1ea5t. Hai ng\u01b0\u1eddi ki\u1ec3m ch\u00e9o cho nhau tr\u01b0\u1edbc khi l\u00ean cao t\u1ed1n ba m\u01b0\u01a1i gi\u00e2y v\u00e0 b\u1eaft \u0111\u01b0\u1ee3c g\u1ea7n nh\u01b0 to\u00e0n b\u1ed9 l\u1ed7i \u0111eo sai.<\/p>\n
V\u00f2ng Ch\u1eef D Sau L\u01b0ng Ph\u1ea3i N\u1eb1m Gi\u1eefa Hai B\u1ea3 Vai<\/h2>\n
V\u1ecb tr\u00ed \u0111i\u1ec3m m\u00f3c tr\u00ean l\u01b0ng kh\u00f4ng ph\u1ea3i chuy\u1ec7n c\u1ea3m gi\u00e1c d\u1ec5 ch\u1ecbu. Quy \u0111\u1ecbnh v\u1ec1 h\u1ec7 ch\u1ed1ng r\u01a1i c\u00e1 nh\u00e2n n\u00eau r\u00f5 \u0111i\u1ec3m g\u1eafn tr\u00ean \u0111ai ph\u1ea3i n\u1eb1m \u1edf gi\u1eefa l\u01b0ng, ngang t\u1ea7m vai; \u0111i\u1ec3m tr\u01b0\u1edbc ng\u1ef1c ch\u1ec9 \u0111\u01b0\u1ee3c d\u00f9ng khi qu\u00e3ng r\u01a1i t\u1ef1 do b\u1ecb h\u1ea1n ch\u1ebf \u1edf m\u1ee9c r\u1ea5t ng\u1eafn. N\u1ed9i dung n\u00e0y n\u1eb1m trong m\u1ee5c 1910.140 c\u1ee7a OSHA v\u1ec1 h\u1ec7 ch\u1ed1ng r\u01a1i c\u00e1 nh\u00e2n<\/a>.<\/p>\n
Ba tr\u1ecb s\u1ed1 trong m\u1ee5c \u0111\u00f3 \u0111\u00e1ng \u0111\u01b0a th\u1eb3ng v\u00e0o t\u00e0i li\u1ec7u hu\u1ea5n luy\u1ec7n \u0111\u1ea7u ca: l\u1ef1c h\u00e3m r\u01a1i t\u00e1c d\u1ee5ng l\u00ean ng\u01b0\u1eddi kh\u00f4ng qu\u00e1 1.800 lb, t\u1ee9c 8 kN; qu\u00e3ng h\u00e3m kh\u00f4ng qu\u00e1 1,1 m; qu\u00e3ng r\u01a1i t\u1ef1 do kh\u00f4ng qu\u00e1 1,8 m. C\u0169ng ch\u00ednh v\u0103n b\u1ea3n n\u00e0y lo\u1ea1i h\u1eb3n \u0111ai eo ra kh\u1ecfi th\u00e0nh ph\u1ea7n c\u1ee7a h\u1ec7 ch\u1ed1ng r\u01a1i, n\u00ean m\u1ed9t chi\u1ebfc \u0111ai l\u01b0ng b\u1ea3n r\u1ed9ng kh\u00f4ng thay \u0111\u01b0\u1ee3c b\u1ed9 \u0111ai to\u00e0n th\u00e2n d\u00f9 tr\u00f4ng ch\u1eafc ch\u1eafn t\u1edbi \u0111\u00e2u.<\/p>\n
L\u00fd do n\u1eb1m \u1edf t\u01b0 th\u1ebf c\u01a1 th\u1ec3 sau khi c\u00fa r\u01a1i b\u1ecb ch\u1eb7n. V\u00f2ng ch\u1eef D \u0111\u1eb7t \u0111\u00fang gi\u1eefa hai b\u1ea3 vai gi\u1eef ng\u01b0\u1eddi treo \u1edf t\u01b0 th\u1ebf h\u01a1i ng\u1ea3 v\u1ec1 tr\u01b0\u1edbc, \u0111\u1ea7u kh\u00f4ng b\u1ecb gi\u1eadt ng\u01b0\u1ee3c. V\u00f2ng t\u1ee5t xu\u1ed1ng th\u1ea5p g\u1ea7n th\u1eaft l\u01b0ng l\u00e0m th\u00e2n ng\u01b0\u1eddi xoay ho\u1eb7c l\u1ed9n ng\u01b0\u1ee3c khi b\u1ecb ch\u1eb7n. V\u00f2ng b\u1ecb k\u00e9o l\u00ean qu\u00e1 cao th\u00ec ph\u1ea7n c\u1ee9ng c\u1ee7a n\u00f3 t\u00ec v\u00e0o g\u00e1y.<\/p>\n
Ki\u1ec3m nhanh b\u1eb1ng m\u1ed9t ph\u00e9p \u0111\u01a1n gi\u1ea3n: ng\u01b0\u1eddi \u0111\u1ee9ng sau \u0111\u1eb7t ngang b\u00e0n tay n\u1ed1i hai b\u1edd vai, v\u00f2ng ch\u1eef D ph\u1ea3i n\u1eb1m ngay d\u01b0\u1edbi \u0111\u01b0\u1eddng \u0111\u00f3 v\u00e0 \u0111\u00fang tr\u1ee5c gi\u1eefa s\u1ed1ng l\u01b0ng. L\u1ec7ch sang m\u1ed9t b\u00ean ngh\u0129a l\u00e0 hai \u0111ai vai kh\u00f4ng \u0111\u1ec1u nhau, ph\u1ea3i n\u1edbi b\u00ean ng\u1eafn ra ch\u1ee9 kh\u00f4ng k\u00e9o v\u00f2ng ch\u1eef D sang.<\/p>\n
![\"L\u01b0ng](\"https:\/\/www.baohoxanh.com\/blog\/wp-content\/uploads\/2019\/03\/day-dai-an-toan-toan-than.jpg\" "\\"\\"")
<\/p>\nCh\u1ec9nh D\u00e2y Vai, D\u00e2y Ng\u1ef1c V\u00e0 D\u00e2y \u0110\u00f9i Cho V\u1eeba<\/h2>\n
Ba nh\u00f3m d\u00e2y n\u00e0y ph\u1ee5 thu\u1ed9c v\u00e0o nhau, ch\u1ec9nh ri\u00eang t\u1eebng c\u00e1i s\u1ebd kh\u00f4ng ra k\u1ebft qu\u1ea3. Th\u1ee9 t\u1ef1 \u0111\u00fang l\u00e0 \u0111\u00f9i tr\u01b0\u1edbc, vai sau, ng\u1ef1c cu\u1ed1i c\u00f9ng.<\/p>\n
- \n
- D\u00e2y \u0111\u00f9i:<\/strong> \u0111\u1ee7 ch\u1eb7t \u0111\u1ec3 khi nh\u1ea5c cao \u0111\u1ea7u g\u1ed1i th\u00ec b\u1ea3n \u0111ai kh\u00f4ng t\u1ee5t xu\u1ed1ng qu\u00e1 v\u00f9ng \u0111\u00f9i, v\u00e0 kh\u00f4ng ch\u1eb7t t\u1edbi m\u1ee9c t\u00ea ch\u00e2n sau m\u1ed9t gi\u1edd \u0111\u1ee9ng l\u00e0m vi\u1ec7c.<\/li>\n
- D\u00e2y vai:<\/strong> ch\u1ec9nh hai b\u00ean b\u1eb1ng nhau, l\u1ea5y v\u1ecb tr\u00ed v\u00f2ng ch\u1eef D l\u00e0m th\u01b0\u1edbc \u0111o ch\u1ee9 kh\u00f4ng l\u1ea5y c\u1ea3m gi\u00e1c \u1edf vai.<\/li>\n
- D\u00e2y ng\u1ef1c:<\/strong> gi\u1eef hai b\u1ea3n vai kh\u00f4ng tr\u01b0\u1ee3t ra ngo\u00e0i c\u1ea7u vai. \u0110\u00e2y l\u00e0 chi ti\u1ebft b\u1ecb th\u00e1o b\u1ecf nhi\u1ec1u nh\u1ea5t v\u00ec v\u01b0\u1edbng, v\u00e0 c\u0169ng l\u00e0 chi ti\u1ebft khi\u1ebfn ng\u01b0\u1eddi tu\u1ed9t kh\u1ecfi \u0111ai khi r\u01a1i.<\/li>\n<\/ul>\n
Sau khi si\u1ebft xong, l\u00e0m ba \u0111\u1ed9ng t\u00e1c th\u1eed: gi\u01a1 hai tay l\u00ean cao, ng\u1ed3i x\u1ed5m xu\u1ed1ng, v\u00e0 xoay ng\u01b0\u1eddi sang hai b\u00ean. B\u1ed9 \u0111ai v\u1eeba ng\u01b0\u1eddi s\u1ebd theo c\u01a1 th\u1ec3 m\u00e0 kh\u00f4ng d\u1ecbch chuy\u1ec3n \u0111\u00e1ng k\u1ec3. B\u1ed9 qu\u00e1 r\u1ed9ng th\u00ec sau ba \u0111\u1ed9ng t\u00e1c \u0111\u00f3, v\u00f2ng ch\u1eef D \u0111\u00e3 tr\u01b0\u1ee3t xu\u1ed1ng th\u1ea5p m\u1ed9t \u0111o\u1ea1n th\u1ea5y r\u00f5 b\u1eb1ng m\u1eaft.<\/p>\n
M\u1ed9t l\u01b0u \u00fd cho t\u1ed5 l\u00e0m ngo\u00e0i tr\u1eddi quanh n\u0103m: b\u1ed9 \u0111ai ch\u1ec9nh v\u1eeba khi m\u1eb7c \u00e1o m\u1ecfng s\u1ebd ch\u1eadt v\u00e0o \u0111\u1ee3t l\u1ea1nh, v\u00e0 ng\u01b0\u1eddi th\u1ee3 s\u1ebd n\u1edbi \u0111ai ra r\u1ed3i qu\u00ean si\u1ebft l\u1ea1i khi tr\u1eddi \u1ea5m. C\u00e1ch x\u1eed l\u00fd l\u00e0 \u0111\u01b0a vi\u1ec7c ch\u1ec9nh \u0111ai v\u00e0o danh m\u1ee5c ki\u1ec3m \u0111\u1ea7u ca thay v\u00ec ch\u1ec9nh m\u1ed9t l\u1ea7n r\u1ed3i \u0111\u1ec3 nguy\u00ean c\u1ea3 n\u0103m.<\/p>\n
\u0110\u1ea7u D\u00e2y Th\u1eeba V\u00e0 Khuy\u00ean Gi\u1eef D\u00e2y<\/h2>\n
Sau khi si\u1ebft \u0111\u00fang c\u1ee1, m\u1ed7i b\u1ea3n \u0111ai \u0111\u1ec1u th\u1eeba ra m\u1ed9t \u0111o\u1ea1n. \u0110o\u1ea1n th\u1eeba n\u00e0y ph\u1ea3i \u0111\u01b0\u1ee3c lu\u1ed3n v\u00e0o khuy\u00ean gi\u1eef d\u00e2y g\u1eafn s\u1eb5n tr\u00ean b\u1ea3n \u0111ai. B\u1ecf qua vi\u1ec7c \u0111\u00f3 sinh ra ba r\u1eafc r\u1ed1i c\u00f9ng l\u00fac: \u0111\u1ea7u d\u00e2y v\u01b0\u1edbng v\u00e0o k\u1ebft c\u1ea5u khi ng\u01b0\u1eddi th\u1ee3 di chuy\u1ec3n, kho\u00e1 \u0111i\u1ec1u ch\u1ec9nh d\u1ec5 b\u1ecb n\u1edbi ra do d\u00e2y b\u1ecb k\u00e9o, v\u00e0 ng\u01b0\u1eddi ki\u1ec3m kh\u00f4ng ph\u00e2n bi\u1ec7t \u0111\u01b0\u1ee3c \u0111ai n\u00e0o \u0111\u00e3 si\u1ebft \u0111ai n\u00e0o ch\u01b0a.<\/p>\n
M\u1ed9t d\u1ea5u hi\u1ec7u \u0111\u1ecdc \u0111\u01b0\u1ee3c t\u1eeb ch\u00ednh \u0111o\u1ea1n d\u00e2y th\u1eeba: n\u1ebfu ph\u1ea3i si\u1ebft t\u1edbi m\u1ee9c d\u01b0 ra m\u1ed9t \u0111o\u1ea1n r\u1ea5t d\u00e0i th\u00ec b\u1ed9 \u0111ai \u0111ang qu\u00e1 c\u1ee1 so v\u1edbi ng\u01b0\u1eddi m\u1eb7c, c\u00f2n n\u1ebfu \u0111\u00e3 n\u1edbi h\u1ebft m\u00e0 v\u1eabn ch\u1eadt th\u00ec b\u1ed9 \u0111ai qu\u00e1 nh\u1ecf. C\u1ea3 hai tr\u01b0\u1eddng h\u1ee3p \u0111\u1ec1u ph\u1ea3i \u0111\u1ed5i c\u1ee1 ch\u1ee9 kh\u00f4ng ch\u1ea5p nh\u1eadn d\u00f9ng t\u1ea1m, v\u00ec kho\u1ea3ng ch\u1ec9nh n\u1eb1m ngo\u00e0i ph\u1ea1m vi thi\u1ebft k\u1ebf th\u00ec kho\u00e1 c\u00e0i kh\u00f4ng \u0103n \u0111\u1ee7 s\u00e2u.<\/p>\n
Kho\u00e1 \u0111i\u1ec1u ch\u1ec9nh c\u0169ng c\u1ea7n \u0111\u01b0\u1ee3c th\u1eed b\u1eb1ng tay tr\u01b0\u1edbc m\u1ed7i ca: k\u00e9o m\u1ea1nh \u0111\u1ea7u d\u00e2y theo chi\u1ec1u n\u1edbi, kho\u00e1 kh\u00f4ng \u0111\u01b0\u1ee3c tr\u01b0\u1ee3t. Kho\u00e1 tr\u01b0\u1ee3t l\u00e0 d\u1ea5u hi\u1ec7u m\u1eb7t r\u0103ng \u0111\u00e3 m\u00f2n ho\u1eb7c b\u1ea3n \u0111ai \u0111\u00e3 x\u01a1 s\u1ee3i \u1edf \u0111\u00fang \u0111o\u1ea1n \u0111i qua kho\u00e1.<\/p>\n
Ph\u1ea7n kim kh\u00ed th\u00ec c\u00f3 ph\u00e9p th\u1eed ri\u00eang v\u00e0 tr\u1ecb s\u1ed1 n\u1eb1m tr\u00ean t\u00e0i li\u1ec7u c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t. V\u00f2ng ch\u1eef D c\u00f9ng m\u00f3c n\u1ed1i ph\u1ea3i ch\u1ecbu \u0111\u01b0\u1ee3c ph\u00e9p th\u1eed nghi\u1ec7m thu 3.600 lb, t\u1ee9c 16 kN, m\u00e0 kh\u00f4ng n\u1ee9t, kh\u00f4ng g\u00e3y v\u00e0 kh\u00f4ng bi\u1ebfn d\u1ea1ng v\u0129nh vi\u1ec5n. M\u00f3c v\u00e0 ma n\u00ed d\u00f9ng cho d\u00e2y n\u1ed1i ph\u1ea3i thu\u1ed9c lo\u1ea1i t\u1ef1 kho\u00e1, c\u1ea7n hai thao t\u00e1c li\u00ean ti\u1ebfp m\u1edbi m\u1edf \u0111\u01b0\u1ee3c; lo\u1ea1i b\u1ea5m m\u1ed9t l\u1ea7n \u0111\u00e3 b\u1ecb lo\u1ea1i kh\u1ecfi h\u1ec7 ch\u1ed1ng r\u01a1i t\u1eeb l\u00e2u. Khi nh\u1eadn l\u00f4 m\u1edbi, \u0111\u00e2y l\u00e0 hai th\u00f4ng tin n\u00ean y\u00eau c\u1ea7u ghi trong t\u00e0i li\u1ec7u k\u00e8m theo thay v\u00ec ch\u1ec9 nh\u00ecn h\u00ecnh d\u00e1ng chi\u1ebfc m\u00f3c.<\/p>\n
![\"Kho\u00e1](\"https:\/\/www.baohoxanh.com\/blog\/wp-content\/uploads\/2024\/10\/day-dai-an-toan-toan-than-1.jpg\" "\\"\\"")
<\/p>\nV\u00ec Sao Kh\u00f4ng \u0110\u01b0\u1ee3c \u0110\u1ec3 Ng\u01b0\u1eddi Treo Qu\u00e1 L\u00e2u Sau Khi R\u01a1i<\/h2>\n
Ch\u1eb7n \u0111\u01b0\u1ee3c c\u00fa r\u01a1i ch\u01b0a ph\u1ea3i l\u00e0 xong. Ng\u01b0\u1eddi treo l\u01a1 l\u1eedng trong \u0111ai, ch\u00e2n kh\u00f4ng t\u1ef3 \u0111\u01b0\u1ee3c v\u00e0o \u0111\u00e2u, s\u1ebd r\u01a1i v\u00e0o t\u00ecnh tr\u1ea1ng m\u00e1u \u1ee9 l\u1ea1i \u1edf hai ch\u00e2n do b\u1ea3n \u0111ai \u0111\u00f9i \u00e9p l\u00ean m\u1ea1ch, v\u00e0 di\u1ec5n bi\u1ebfn n\u00e0y x\u1ea3y ra nhanh h\u01a1n nhi\u1ec1u so v\u1edbi h\u00ecnh dung c\u1ee7a ph\u1ea7n l\u1edbn \u0111\u1ed9i thi c\u00f4ng. \u0110\u00f3 l\u00e0 l\u00fd do quy \u0111\u1ecbnh bu\u1ed9c ch\u1ee7 s\u1eed d\u1ee5ng lao \u0111\u1ed9ng ph\u1ea3i b\u1ed1 tr\u00ed s\u1eb5n ph\u01b0\u01a1ng \u00e1n \u0111\u01b0a ng\u01b0\u1eddi xu\u1ed1ng ngay khi c\u00f3 s\u1ef1 c\u1ed1.<\/p>\n
Ph\u1ea7n li\u00ean quan tr\u1ef1c ti\u1ebfp t\u1edbi c\u00e1ch ch\u1ec9nh \u0111ai n\u1eb1m \u1edf ch\u1ed7 n\u00e0y: b\u1ea3n \u0111ai \u0111\u00f9i qu\u00e1 h\u1eb9p ho\u1eb7c si\u1ebft qu\u00e1 ch\u1eb7t l\u00e0m \u00e1p l\u1ef1c d\u1ed3n v\u00e0o m\u1ed9t d\u1ea3i r\u1ea5t nh\u1ecf, khi\u1ebfn t\u00ecnh tr\u1ea1ng \u0111\u1ebfn s\u1edbm h\u01a1n. B\u1ea3n \u0111ai r\u1ed9ng, c\u00f3 \u0111\u1ec7m, v\u00e0 v\u00f2ng ch\u1eef D \u0111\u1eb7t \u0111\u00fang ch\u1ed7 gi\u00fap ng\u01b0\u1eddi treo gi\u1eef \u0111\u01b0\u1ee3c t\u01b0 th\u1ebf t\u1ed1t h\u01a1n. Nh\u01b0ng \u0111\u00e2y ch\u1ec9 l\u00e0 vi\u1ec7c k\u00e9o d\u00e0i th\u00eam ch\u00fat th\u1eddi gian, kh\u00f4ng ph\u1ea3i c\u00e1ch thay th\u1ebf cho vi\u1ec7c \u0111\u01b0a ng\u01b0\u1eddi xu\u1ed1ng.<\/p>\n
Trang B\u1ecb Ch\u1ed1ng R\u01a1i Ng\u00e3 \u0110\u1ed3ng B\u1ed9<\/h2>\n
B\u1ea3o H\u1ed9 Xanh cung c\u1ea5p nh\u00f3m \u0111ai to\u00e0n th\u00e2n nhi\u1ec1u ki\u1ec3u m\u00f3c<\/a> theo t\u1eebng c\u1ee1, c\u00e1c d\u00f2ng \u0111ai nh\u1eadp t\u1eeb H\u00e0n Qu\u1ed1c<\/a>, c\u00f9ng l\u01b0\u1edbi ch\u1eafn ch\u1ed1ng r\u01a1i cho m\u1eb7t \u0111\u1ee9ng c\u00f4ng tr\u00ecnh<\/a> v\u00e0 gi\u00e0y b\u1ea3o h\u1ed9 \u0111\u1ebf ch\u1ed1ng tr\u01b0\u1ee3t<\/a> cho ng\u01b0\u1eddi leo tr\u00e8o. H\u1ed7 tr\u1ee3 l\u1ea5y s\u1ed1 \u0111o theo danh s\u00e1ch nh\u00e2n s\u1ef1 tr\u01b0\u1edbc khi ch\u1ed1t l\u00f4 \u0111\u1ec3 tr\u00e1nh t\u00ecnh tr\u1ea1ng c\u1ea5p \u0111\u1ee7 s\u1ed1 l\u01b0\u1ee3ng nh\u01b0ng l\u1ec7ch c\u1ee1, v\u00e0 xu\u1ea5t h\u00f3a \u0111\u01a1n \u0111\u1ea7y \u0111\u1ee7.<\/p>\n
![\"D\u00e2y](\"https:\/\/www.baohoxanh.com\/blog\/wp-content\/uploads\/2019\/01\/Day-dai-an-toan.png\" "\\"\\"")
<\/p>\n","protected":false},"excerpt":{"rendered":"D\u00e2y \u0111ai an to\u00e0n to\u00e0n th\u00e2n m\u00f3c nh\u1ecf: \u0111o ng\u01b0\u1eddi tr\u01b0\u1edbc khi ch\u1ecdn c\u1ee1, tr\u00ecnh t\u1ef1 m\u1eb7c s\u00e1u b\u01b0\u1edbc v\u00e0 c\u00e1ch \u0111\u1eb7t v\u00f2ng ch\u1eef D \u0111\u00fang gi\u1eefa hai b\u1ea3 vai.<\/p>\n","protected":false},"author":761,"featured_media":65855,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6919],"tags":[556,917,3943],"class_list":["post-17666","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cac-bai-co-traffic","tag-day-dai-bao-ho","tag-day-dai-an-toan-toan-than","tag-day-dai-toan-than"],"_links":{"self":[{"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/posts\/17666","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/users\/761"}],"replies":[{"embeddable":true,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/comments?post=17666"}],"version-history":[{"count":18,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/posts\/17666\/revisions"}],"predecessor-version":[{"id":95139,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/posts\/17666\/revisions\/95139"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/media\/65855"}],"wp:attachment":[{"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/media?parent=17666"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/categories?post=17666"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/tags?post=17666"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
- D\u00e2y vai:<\/strong> ch\u1ec9nh hai b\u00ean b\u1eb1ng nhau, l\u1ea5y v\u1ecb tr\u00ed v\u00f2ng ch\u1eef D l\u00e0m th\u01b0\u1edbc \u0111o ch\u1ee9 kh\u00f4ng l\u1ea5y c\u1ea3m gi\u00e1c \u1edf vai.<\/li>\n
- D\u00e2y \u0111\u00f9i:<\/strong> \u0111\u1ee7 ch\u1eb7t \u0111\u1ec3 khi nh\u1ea5c cao \u0111\u1ea7u g\u1ed1i th\u00ec b\u1ea3n \u0111ai kh\u00f4ng t\u1ee5t xu\u1ed1ng qu\u00e1 v\u00f9ng \u0111\u00f9i, v\u00e0 kh\u00f4ng ch\u1eb7t t\u1edbi m\u1ee9c t\u00ea ch\u00e2n sau m\u1ed9t gi\u1edd \u0111\u1ee9ng l\u00e0m vi\u1ec7c.<\/li>\n
- V\u00f2ng ng\u1ef1c \u0111o khi \u0111\u00e3 m\u1eb7c \u0111\u1ee7 l\u1edbp \u00e1o l\u00e0m vi\u1ec7c:<\/strong> \u0111o tr\u00ean ng\u01b0\u1eddi m\u1eb7c \u00e1o m\u1ecfng r\u1ed3i \u0111\u1eb7t h\u00e0ng l\u00e0 l\u00fd do nhi\u1ec1u b\u1ed9 ch\u1eadt v\u00e0o m\u00f9a l\u1ea1nh.<\/li>\n