Khi kh\u1ea9u \u0111\u1ed9 r\u1ea5t l\u1edbn, th\u01b0\u1eddng ph\u1ea3i d\u00f9ng d\u1ea7m v\u1eeba d\u00e0y v\u1eeba to, nh\u01b0ng th\u1ebf th\u00ec tr\u1ecdng l\u01b0\u1ee3ng b\u1ea3n th\u00e2n c\u1ee7a d\u1ea7m l\u1ea1i c\u00e0ng t\u0103ng l\u00ean nhi\u1ec1u. M\u1ed9t d\u1ea7m \u0111\u00e1 c\u00f3 di\u1ec7n t\u00edch 1 m2, n\u1ebfu ph\u1ea3i b\u1eafc qua m\u1ed9t kho\u1ea3ng c\u00e1ch l\u00e0 30 m th\u00ec b\u1ea3n th\u00e2n n\u00f3 n\u1eb7ng g\u1ea7n 300 t\u1ea5n. \u0110\u00e1 l\u00e0 m\u1ed9t v\u1eadt li\u1ec7u r\u1ea5t ch\u1ecbu n\u00e9n, m\u1ed7i cm2 c\u00f3 th\u1ec3 ch\u1ecbu m\u1ed9t tr\u1ecdng l\u1ef1c l\u00e0 2000-3000 N, nh\u01b0ng l\u1ef1c k\u00e9o th\u00ec l\u1ea1i r\u1ea5t k\u00e9m (m\u1ed7i cm2 ch\u1ec9 ch\u1ecbu \u0111\u1ef1ng v\u00e0i tr\u0103m N) h\u01a1n n\u1eefa b\u1ea3n th\u00e2n \u0111\u00e1 c\u00f2n c\u00f3 nhi\u1ec1u v\u1ebft n\u1ee9t v\u00e0 \u0111\u01b0\u1eddng v\u00e2n. Do v\u1eady m\u1ed9t d\u1ea7m \u0111\u00e1 d\u00e0i 30 m, n\u1eb7ng 300 t\u1ea5n, d\u00f9 l\u00e0 r\u1ea5t to, nh\u01b0ng khi g\u00e1c l\u00ean cao, m\u1eb7c d\u00f9 kh\u00f4ng ch\u1ecbu t\u1ea3i tr\u1ecdng n\u00e0o c\u0169ng t\u1ef1 n\u00f3 b\u1ecb g\u00e3y.<\/p>\n\n\n\n
Kh\u1ea9u \u0111\u1ed9 v\u00e0i ch\u1ee5c m\u00e9t, \u0111\u1ed1i v\u1edbi c\u00e1c k\u1ebft c\u1ea5u v\u1ecf m\u1ecfng, k\u1ebft c\u1ea5u khung l\u01b0\u1edbi, k\u1ebft c\u1ea5u c\u00e1p treo v.v. trong ki\u1ebfn tr\u00fac hi\u1ec7n \u0111\u1ea1i, c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng ngon \u01a1, th\u1eadm ch\u00ed kh\u1ea9u \u0111\u1ed9 1-2 tr\u0103m m\u00e9t c\u0169ng ch\u1eb3ng ph\u1ea3i l\u00e0 chuy\u1ec7n kh\u00f3, nh\u01b0ng \u0111\u1ed1i v\u1edbi “k\u1ebft c\u1ea5u d\u1ea7m c\u1ed9t” c\u1ee7a ki\u1ebfn tr\u00fac c\u1ed5 th\u00ec kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c. Tuy nhi\u00ean, th\u1eddi c\u1ed5 \u0111\u1ea1i v\u1eabn c\u00f3 nhi\u1ec1u m\u00e1i nh\u00e0 ki\u1ebfn tr\u00fac v\u1edbi kh\u1ea9u \u0111\u1ed9 r\u1ea5t l\u1edbn, nh\u01b0 \u0111\u1ec1n th\u1edd m\u1ed9t v\u1ea1n v\u1ecb th\u1ea7n c\u1ed5 c\u1ee7a La M\u00e3. Kh\u1ea9u \u0111\u1ed9 m\u00e1i v\u00f2m c\u1ee7a n\u00f3 \u0111\u1ea1t \u0111\u1ebfn 43 m (\u0111\u01b0\u1eddng k\u00ednh), v\u1eady n\u00f3 \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng nh\u01b0 th\u1ebf n\u00e0o?<\/p>\n\n\n\n
Trong c\u00e1c ki\u1ebfn tr\u00fac tr\u01b0\u1edbc kia, ta th\u01b0\u1eddng th\u1ea5y b\u00ean trong m\u1ed9t s\u1ed1 c\u1eeda s\u1ed5 ho\u1eb7c c\u1eeda ra v\u00e0o, ng\u01b0\u1eddi ta d\u00f9ng c\u00e1c vi\u00ean \u0111\u00e1 ho\u1eb7c g\u1ea1ch c\u00f3 d\u1ea1ng h\u00ecnh cung tr\u00f2n, h\u00ecnh b\u1ea7u d\u1ee5c v\u00e0 h\u00ecnh tr\u00f2n nh\u1ecdn, \u0111\u00f3 l\u00e0 “v\u00f2m cu\u1ed1n”. K\u1ebft c\u1ea5u v\u00f2m cu\u1ed1n th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng \u1edf c\u00e1c c\u1ea7u x\u00e2y b\u1eb1ng \u0111\u00e1 th\u1eddi c\u1ed5 \u0111\u1ea1i. Ngo\u00e0i ra c\u00f2n c\u00f3 m\u1ed9t s\u1ed1 \u0111\u1ec1n mi\u1ebfu, nh\u00e0 th\u1edd, m\u00e1i c\u1ee7a ch\u00fang c\u00f3 d\u1ea1ng n\u1eeda h\u00ecnh c\u1ea7u, \u0111\u00f3 c\u0169ng l\u00e0 m\u1ed9t lo\u1ea1i v\u00f2m cu\u1ed1n, v\u1ec1 m\u1eb7t ki\u1ebfn tr\u00fac g\u1ecdi l\u00e0 “m\u00e1i v\u00f2m”.<\/p>\n\n\n\n
Th\u1ebf th\u00ec t\u1ea1i sao v\u00f2m cu\u1ed1n c\u00f3 th\u1ec3 v\u01b0\u1ee3t qua kh\u1ea9u \u0111\u1ed9 h\u00e0ng ch\u1ee5c m\u00e9t? Ho\u00e1 ra l\u00e0, v\u00f2m cu\u1ed1n c\u00f3 th\u1ec3 d\u00f9ng t\u1eebng vi\u00ean t\u1eebng vi\u00ean g\u1ea1ch \u0111\u00e1 gh\u00e9p v\u00e0o nhau m\u00e0 th\u00e0nh, kh\u00f4ng nh\u01b0 d\u1ea7m, nh\u1ea5t \u0111\u1ecbnh ph\u1ea3i d\u00f9ng c\u1ea3 thanh \u0111\u00e1 ho\u1eb7c thanh g\u1ed7. Nguy\u00ean nh\u00e2n l\u00e0 sau khi v\u00f2m cu\u1ed1n ch\u1ecbu t\u1ea3i tr\u1ecdng, b\u00ean trong n\u00f3 kh\u00f4ng s\u1ea3n ra m\u1ed9t l\u1ef1c k\u00e9o, ch\u1ee7 y\u1ebfu s\u1ea3n sinh l\u1ef1c n\u00e9n, c\u00e1c vi\u00ean \u0111\u00e1 v\u00e0 vi\u00ean g\u1ea1ch \u0111\u1ec1u l\u00e0 nh\u1eefng v\u1eadt li\u1ec7u c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu n\u00e9n r\u1ea5t l\u1edbn, c\u00e1c v\u1eadt li\u1ec7u d\u1ea1ng vi\u00ean nh\u1ecf ch\u1ec9 c\u1ea7n vi\u00ean n\u00e0y \u00e1p \u0111\u1eb7t v\u00e0o vi\u00ean kia kh\u00f4ng l\u01a1i l\u1ecfng, th\u00ec s\u1ebd kh\u00f4ng th\u1ec3 b\u1ecb ph\u00e2n t\u00e1n ra, \u0111\u00f3 l\u00e0 nguy\u00ean nh\u00e2n khi\u1ebfn cho v\u00f2m cu\u1ed1n c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng v\u01b0\u1ee3t qua kh\u1ea9u \u0111\u1ed9 l\u1edbn h\u01a1n so v\u1edbi d\u1ea7m. \u0110\u01b0\u01a1ng nhi\u00ean, \u1edf ph\u1ea7n ch\u00e2n c\u1ee7a v\u00f2m cu\u1ed1n s\u1ebd s\u1ea3n sinh ra l\u1ef1c \u0111\u1ea9y h\u01b0\u1edbng ra ngo\u00e0i, v\u00f2m cu\u1ed1n c\u00e0ng “d\u1eb9t” th\u00ec l\u1ef1c \u0111\u1ea9y c\u00e0ng l\u1edbn, gi\u1ed1ng nh\u01b0 khi ta \u0111\u1ee9ng xo\u1ea1c ch\u00e2n th\u00ec c\u1ea3m gi\u00e1c nh\u01b0 b\u1ecb tr\u01b0\u1ee3t ra hai b\u00ean, v\u00ec v\u1eady ph\u1ea7n ch\u00e2n c\u1ee7a k\u1ebft c\u1ea5u v\u00f2m cu\u1ed1n, c\u1ea7n ph\u1ea3i l\u00e0m t\u01b0\u1eddng d\u00e0y ho\u1eb7c m\u00f3ng v\u1eefng ch\u1eafc \u0111\u1ec3 ch\u1ed1ng l\u1ea1i l\u1ef1c \u0111\u1ea9y.<\/p>\n\n\n\n
K\u1ebft c\u1ea5u v\u1ecf m\u1ecfng trong ki\u1ebfn tr\u00fac hi\u1ec7n \u0111\u1ea1i, v\u1ec1 nguy\u00ean l\u00fd c\u0169ng t\u01b0\u01a1ng t\u1ef1 nh\u01b0 v\u00f2m cu\u1ed1n, v\u00ec v\u1eady k\u1ebft c\u1ea5u v\u1ecf m\u1ecfng tuy r\u1ea5t m\u1ecfng, nh\u01b0ng c\u00f3 th\u1ec3 v\u01b0\u1ee3t qua \u0111\u01b0\u1ee3c kho\u1ea3ng c\u00e1ch r\u1ea5t l\u1edbn.<\/p>\n\n\n\n
T\u1eeb kh\u00f3a: K\u1ebft c\u1ea5u v\u00f2m cu\u1ed1n; D\u1ea7m.<\/p>\n","protected":false},"excerpt":{"rendered":"
Khi kh\u1ea9u \u0111\u1ed9 r\u1ea5t l\u1edbn, th\u01b0\u1eddng ph\u1ea3i d\u00f9ng d\u1ea7m v\u1eeba d\u00e0y v\u1eeba to, nh\u01b0ng th\u1ebf th\u00ec tr\u1ecdng l\u01b0\u1ee3ng b\u1ea3n th\u00e2n c\u1ee7a d\u1ea7m l\u1ea1i c\u00e0ng t\u0103ng l\u00ean nhi\u1ec1u. M\u1ed9t d\u1ea7m \u0111\u00e1 c\u00f3 di\u1ec7n t\u00edch 1 m2, n\u1ebfu ph\u1ea3i b\u1eafc qua m\u1ed9t kho\u1ea3ng c\u00e1ch l\u00e0 30 m th\u00ec b\u1ea3n th\u00e2n n\u00f3 n\u1eb7ng g\u1ea7n 300 t\u1ea5n. \u0110\u00e1 l\u00e0 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[15,16],"tags":[],"class_list":["post-9063","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-ky-thuat"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/9063","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=9063"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/9063\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=9063"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=9063"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=9063"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}