L\u1ef1c l\u01b0\u1ee3ng c\u1ee9u h\u1ed9 n\u1ed7 l\u1ef1c \u0111\u01b0a thi th\u1ec3 b\u00e9 H\u1ea1o Nam v\u1ec1 cho gia \u0111\u00ecnh<\/figcaption><\/figure>\nHi\u1ec7n nay, t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng c\u00f3 \u0111\u1ea7y \u0111\u1ee7 thi\u1ebft b\u1ecb nh\u01b0: m\u00e1y b\u00faa rung, c\u1ea7n c\u1ea9u 80 t\u1ea5n v\u00e0 c\u00e1c lo\u1ea1i m\u00e1y ph\u00e1t \u0111i\u1ec7n. C\u00e1c l\u1ef1c l\u01b0\u1ee3ng c\u1ed1 g\u1eafng trong m\u1ed9t ho\u1eb7c hai ng\u00e0y n\u1eefa s\u1ebd nh\u1ed5 \u1ed1ng b\u00ea t\u00f4ng l\u00ean \u0111\u1ec3 \u0111\u01b0a thi th\u1ec3 b\u00e9 H\u1ea1o Nam ra.<\/p>\n
Sau khi tham v\u1ea5n \u00fd ki\u1ebfn chuy\u00ean gia, ph\u01b0\u01a1ng \u00e1n c\u1ee9u h\u1ed9 m\u1edbi nh\u1ea5t \u0111\u01b0\u1ee3c th\u00f4ng qua l\u00e0 s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p gi\u1eefa c\u1ecdc v\u00e1n th\u00e9p v\u00e0 \u1ed1ng v\u00e1ch th\u00e9p trong qu\u00e1 tr\u00ecnh l\u00e0m s\u1ea1ch \u0111\u1ea5t xung quanh \u1ed1ng c\u1ecdc b\u00ea t\u00f4ng.<\/p>\n
Theo \u0111\u00f3, theo ph\u01b0\u01a1ng \u00e1n, c\u1ecdc v\u00e1n th\u00e9p s\u1ebd \u0111\u01b0\u1ee3c \u0111\u00f3ng xung quanh tr\u1ee5 b\u00ea t\u00f4ng t\u1ea1o th\u00e0nh m\u1ed9t b\u1ed9 khung 4,8m x 4,8m, \u0111\u1ea5t xung quanh tr\u1ee5 \u0111\u01b0\u1ee3c l\u1ea5y l\u00ean b\u1eb1ng g\u00e0u x\u00fac (t\u1ea1m g\u1ecdi t\u1ea7ng 1).<\/p>\n
T\u1eeb \u0111\u00e1y t\u1ea7ng 1, d\u00f9ng \u1ed1ng v\u00e1ch th\u00e9p \u0111\u01b0\u1eddng k\u00ednh 1,6m \u0111\u00f3ng xu\u1ed1ng \u0111\u1ebfn khi \u0111\u1ea1t \u0111\u1ed9 s\u00e2u c\u1ee7a \u0111\u00e1y tr\u1ee5 b\u00ea t\u00f4ng (t\u1ea1m g\u1ecdi t\u1ea7ng 2). Sau \u0111\u00f3 \u0111\u1ea5t xung quanh tr\u1ee5 \u0111\u01b0\u1ee3c l\u1ea5y l\u00ean b\u1eb1ng khoan gu\u1ed3ng xo\u1eafn. Sau khi ti\u1ebfp c\u1eadn \u0111\u00e1y tr\u1ee5 s\u1ebd d\u00f9ng h\u1ec7 th\u1ed1ng c\u00e1p v\u00e0 c\u1ea7n c\u1ea9u nh\u1ea5c tr\u1ee5 b\u00ea t\u00f4ng l\u00ean.<\/p>\n