{"id":3357,"date":"2020-04-12T15:10:25","date_gmt":"2020-04-12T15:10:25","guid":{"rendered":"https:\/\/thuvienxaydung.com.vn\/?p=3357"},"modified":"2020-04-12T15:13:14","modified_gmt":"2020-04-12T15:13:14","slug":"thi-nghiem-hien-truong-xay-dung-la-gi","status":"publish","type":"post","link":"https:\/\/tailieuxaydung.net\/?p=3357","title":{"rendered":"Th\u00ed nghi\u1ec7m hi\u1ec7n tr\u01b0\u1eddng x\u00e2y d\u1ef1ng l\u00e0 g\u00ec ?"},"content":{"rendered":"

Th\u00ed nghi\u1ec7m b\u00e0n n\u00e9n hi\u1ec7n tr\u01b0\u1eddng l\u00e0 th\u00ed nghi\u1ec7m m\u00f4 ph\u1ecfng \u0111\u1ebf m\u00f3ng v\u00e0 \u0111\u1ea5t c\u00f4ng tr\u00ecnh khi \u1edf tr\u1ea1ng th\u00e1i t\u1ef1 nhi\u00ean. N\u00f3 \u0111\u01b0\u1ee3c hi\u1ec3u \u0111\u01a1n gi\u1ea3n l\u00e0 vi\u1ec7c kh\u1ea3o s\u00e1t \u0111\u1ecba ch\u1ea5t hi\u1ec7n tr\u01b0\u1eddng tr\u01b0\u1edbc khi x\u00e2y d\u1ef1ng c\u00f4ng tr\u00ecnh. Th\u00f4ng qua th\u00ed nghi\u1ec7m, ch\u00fang ta c\u00f3 th\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c nh\u1eefng th\u00f4ng tin t\u1ed5ng qu\u00e1t nh\u1ea5t v\u1ec1 n\u1ec1n \u0111\u1ea5t.<\/p>\n

Quy \u0111\u1ecbnh v\u1ec1 tr\u1ea1m th\u00ed nghi\u1ec7m hi\u1ec7n tr\u01b0\u1eddng x\u00e2y d\u1ef1ng<\/h2>\n
<\/div>\n
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Quy \u0111\u1ecbnh v\u1ec1 tr\u1ea1m th\u00ed nghi\u1ec7m hi\u1ec7n tr\u01b0\u1eddng x\u00e2y d\u1ef1ng \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh t\u1ea1i\u00a0\u0110i\u1ec1u 5 Th\u00f4ng t\u01b0 06\/2017\/TT-BXD\u00a0h\u01b0\u1edbng d\u1eabn ho\u1ea1t \u0111\u1ed9ng th\u00ed nghi\u1ec7m chuy\u00ean ng\u00e0nh x\u00e2y d\u1ef1ng do B\u1ed9 tr\u01b0\u1edfng B\u1ed9 X\u00e2y d\u1ef1ng ban h\u00e0nh nh\u01b0 sau:<\/p>\n

1. Tr\u1ea1m th\u00ed nghi\u1ec7m hi\u1ec7n tr\u01b0\u1eddng l\u00e0 m\u1ed9t th\u1ef1c th\u1ec3 c\u1ee7a ph\u00f2ng th\u00ed nghi\u1ec7m chuy\u00ean ng\u00e0nh x\u00e2y d\u1ef1ng, do t\u1ed5 ch\u1ee9c ho\u1ea1t \u0111\u1ed9ng th\u00ed nghi\u1ec7m chuy\u00ean ng\u00e0nh x\u00e2y d\u1ef1ng th\u00e0nh l\u1eadp \u0111\u1ec3 ph\u1ee5c v\u1ee5 ho\u1ea1t \u0111\u1ed9ng th\u00ed nghi\u1ec7m cho d\u1ef1 \u00e1n\/c\u00f4ng tr\u00ecnh x\u00e2y d\u1ef1ng c\u1ee5 th\u1ec3 trong kho\u1ea3ng th\u1eddi gian thi c\u00f4ng d\u1ef1 \u00e1n\/c\u00f4ng tr\u00ecnh x\u00e2y d\u1ef1ng \u0111\u00f3. Tr\u1ea1m th\u00ed nghi\u1ec7m hi\u1ec7n tr\u01b0\u1eddng \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed nh\u00e2n l\u1ef1c, thi\u1ebft b\u1ecb, d\u1ee5ng c\u1ee5, \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u v\u1ec1 kh\u00f4ng gian v\u00e0 \u0111i\u1ec1u ki\u1ec7n th\u00ed nghi\u1ec7m nh\u01b0 ph\u00f2ng th\u00ed nghi\u1ec7m chuy\u00ean ng\u00e0nh x\u00e2y d\u1ef1ng, t\u01b0\u01a1ng \u1ee9ng v\u1edbi c\u00e1c ph\u00e9p th\u1eed \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n.<\/p>\n

2. C\u0103n c\u1ee9 y\u00eau c\u1ea7u th\u1ef1c t\u1ebf c\u1ee7a t\u1eebng d\u1ef1 \u00e1n\/c\u00f4ng tr\u00ecnh x\u00e2y d\u1ef1ng c\u1ee5 th\u1ec3, vi\u1ec7c th\u00e0nh l\u1eadp tr\u1ea1m th\u00ed nghi\u1ec7m hi\u1ec7n tr\u01b0\u1eddng ph\u1ea3i \u0111\u01b0\u1ee3c ban h\u00e0nh b\u1eb1ng Quy\u1ebft \u0111\u1ecbnh. Quy\u1ebft \u0111\u1ecbnh th\u00e0nh l\u1eadp tr\u1ea1m th\u00ed nghi\u1ec7m hi\u1ec7n tr\u01b0\u1eddng ph\u1ea3i ghi r\u00f5 \u0111\u1ecba ch\u1ec9, k\u00e8m theo danh m\u1ee5c nh\u00e2n s\u1ef1, thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c \u0111i\u1ec1u chuy\u1ec3n. Quy\u1ebft \u0111\u1ecbnh th\u00e0nh l\u1eadp \u0111\u01b0\u1ee3c g\u1eedi cho ch\u1ee7 \u0111\u1ea7u t\u01b0 ho\u1eb7c c\u00e1 nh\u00e2n, t\u1ed5 ch\u1ee9c \u0111\u01b0\u1ee3c ch\u1ee7 \u0111\u1ea7u t\u01b0 \u1ee7y quy\u1ec1n ki\u1ec3m tra x\u00e1c nh\u1eadn ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c ph\u00e9p th\u1eed th\u1ef1c hi\u1ec7n cho c\u00f4ng tr\u00ecnh. Qu\u00e1 tr\u00ecnh ki\u1ec3m tra \u0111\u01b0\u1ee3c l\u1eadp th\u00e0nh bi\u00ean b\u1ea3n tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh c\u00e1c ho\u1ea1t \u0111\u1ed9ng th\u00ed nghi\u1ec7m, Tr\u01b0\u1eddng h\u1ee3p m\u1ed9t tr\u1ea1m th\u00ed nghi\u1ec7m hi\u1ec7n tr\u01b0\u1eddng ph\u1ee5c v\u1ee5 cho nhi\u1ec1u d\u1ef1 \u00e1n\/c\u00f4ng tr\u00ecnh c\u00f9ng th\u1eddi \u0111i\u1ec3m th\u00ec ph\u1ea3i \u0111\u01b0\u1ee3c ghi r\u00f5 trong Quy\u1ebft \u0111\u1ecbnh th\u00e0nh l\u1eadp tr\u1ea1m th\u00ed nghi\u1ec7m hi\u1ec7n tr\u01b0\u1eddng ho\u1eb7c ph\u1ea3i ban h\u00e0nh Quy\u1ebft \u0111\u1ecbnh b\u1ed5 sung.<\/p>\n

3. Tr\u1ea1m th\u00ed nghi\u1ec7m hi\u1ec7n tr\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng m\u00e3 s\u1ed1 LAS-XD c\u1ee7a ph\u00f2ng th\u00ed nghi\u1ec7m \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn c\u1ee7a t\u1ed5 ch\u1ee9c ho\u1ea1t \u0111\u1ed9ng th\u00ed nghi\u1ec7m chuy\u00ean ng\u00e0nh x\u00e2y d\u1ef1ng.<\/p>\n

4. C\u00e1c thi\u1ebft b\u1ecb th\u00ed nghi\u1ec7m \u0111\u1eb7t c\u1ed1 \u0111\u1ecbnh t\u1ea1i tr\u1ea1m th\u00ed nghi\u1ec7m hi\u1ec7n tr\u01b0\u1eddng ph\u1ea3i \u0111\u01b0\u1ee3c ki\u1ec3m \u0111\u1ecbnh\/hi\u1ec7u chu\u1ea9n l\u1ea1i theo quy \u0111\u1ecbnh c\u1ee7a ph\u00e1p lu\u1eadt v\u1ec1 \u0111o l\u01b0\u1eddng tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh c\u00e1c th\u00ed nghi\u1ec7m.<\/p>\n

5. Tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh c\u00e1c ho\u1ea1t \u0111\u1ed9ng th\u00ed nghi\u1ec7m v\u00e0 trong th\u1eddi gian 01 th\u00e1ng sau khi k\u1ebft th\u00fac c\u00e1c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a tr\u1ea1m th\u00ed nghi\u1ec7m hi\u1ec7n tr\u01b0\u1eddng, t\u1ed5 ch\u1ee9c ho\u1ea1t \u0111\u1ed9ng th\u00ed nghi\u1ec7m chuy\u00ean ng\u00e0nh x\u00e2y d\u1ef1ng ph\u1ea3i th\u00f4ng b\u00e1o b\u1eb1ng v\u0103n b\u1ea3n cho S\u1edf X\u00e2y d\u1ef1ng t\u1ea1i \u0111\u1ecba ph\u01b0\u01a1ng n\u01a1i th\u1ef1c hi\u1ec7n d\u1ef1 \u00e1n\/c\u00f4ng tr\u00ecnh x\u00e2y d\u1ef1ng,<\/p>\n

Tr\u00ean \u0111\u00e2y l\u00e0 n\u1ed9i dung c\u00e2u tr\u1ea3 l\u1eddi v\u1ec1 quy \u0111\u1ecbnh v\u1ec1 tr\u1ea1m th\u00ed nghi\u1ec7m hi\u1ec7n tr\u01b0\u1eddng x\u00e2y d\u1ef1ng theo quy \u0111\u1ecbnh. \u0110\u1ec3 hi\u1ec3u r\u00f5 v\u00e0 chi ti\u1ebft h\u01a1n v\u1ec1 v\u1ea5n \u0111\u1ec1 n\u00e0y b\u1ea1n c\u00f3 th\u1ec3 t\u00ecm \u0111\u1ecdc v\u00e0 tham kh\u1ea3o th\u00eam v\u1ec1 v\u1ea5n \u0111\u1ec1 n\u00e0y t\u1ea1i Th\u00f4ng t\u01b0 06\/2017\/TT-BXD.<\/p>\n

C\u00e1c ph\u01b0\u01a1ng ph\u00e1p th\u00ed nghi\u1ec7m hi\u1ec7n tr\u01b0\u1eddng<\/h2>\n

C\u00e1c ph\u01b0\u01a1ng ph\u00e1p th\u00ed nghi\u1ec7m hi\u1ec7n tr\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n ngo\u00e0i hi\u1ec7n tr\u01b0\u1eddng song song v\u1edbi qu\u00e1 tr\u00ecnh khoan kh\u1ea3o s\u00e1t \u0111\u1ecba ch\u1ea5t.<\/p>\n

T\u00f9y v\u00e0o t\u1eebng\u00a0t\u00ednh ch\u1ea5t c\u1ee5 th\u1ec3 c\u1ee7a c\u00f4ng tr\u00ecnh m\u00e0 \u00e1p d\u1ee5ng lo\u1ea1i th\u00ed nghi\u1ec7m th\u00edch h\u1ee3p. C\u00e1c th\u00ed nghi\u1ec7m th\u01b0\u1eddng hay s\u1eed d\u1ee5ng t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng l\u00e0 th\u00ed nghi\u1ec7m xuy\u00ean ti\u00eau chu\u1ea9n SPT, th\u00ed nghi\u1ec7m c\u1eaft c\u00e1nh, th\u00ed nghi\u1ec7m \u0111o \u0111i\u1ec7n tr\u1edf \u0111\u1ea5t, th\u00ed nghi\u1ec7m quan tr\u1eafc m\u1ef1c n\u01b0\u1edbc ng\u1ea7m trong h\u1ed1 khoan.<\/p>\n

Tham kh\u1ea3o ph\u1ee5 l\u1ee5c E c\u1ee7a TCVN 9363: 2012 v\u1ec1 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p th\u00ed nghi\u1ec7m hi\u1ec7n tr\u01b0\u1eddng.<\/p>\n

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V\u00ed d\u1ee5 minh h\u1ecda cho th\u00ed nghi\u1ec7m c\u1eaft c\u00e1nh<\/figcaption><\/figure>\n
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C\u00e1c ph\u01b0\u01a1ng ph\u00e1p th\u00ed nghi\u1ec7m hi\u1ec7n tr\u01b0\u1eddng<\/h3>\n

E.1 Th\u00ed nghi\u1ec7m xuy\u00ean t\u0129nh:<\/h5>\n

Th\u00ed nghi\u1ec7m xuy\u00ean t\u0129nh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u0111\u1ec3 l\u00e0m r\u00f5 t\u00ednh \u0111\u1ed3ng nh\u1ea5t c\u1ee7a \u0111\u1ecba t\u1ea7ng, \u0111\u1eb7c t\u00ednh bi\u1ebfn d\u1ea1ng v\u00e0 s\u1ee9c ch\u1ecbu t\u1ea3i c\u1ee7a \u0111\u1ea5t n\u1ec1n, d\u1ef1 t\u00ednh s\u1ee9c ch\u1ecbu t\u1ea3i c\u1ee7a c\u1ecdc \u0111\u01a1n\u2026 Th\u00ed nghi\u1ec7m \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong c\u00e1c l\u1edbp \u0111\u1ea5t d\u00ednh v\u00e0 \u0111\u1ea5t r\u1eddi kh\u00f4ng ch\u1ee9a cu\u1ed9i s\u1ecfi. M\u1ee5c \u0111\u00edch c\u1ee7a th\u00ed nghi\u1ec7m n\u00e0y l\u00e0 cung c\u1ea5p th\u00eam c\u00e1c th\u00f4ng tin \u0111\u1ec3 thi\u1ebft k\u1ebf v\u00e0 thi c\u00f4ng c\u00e1c ph\u1ea7n ng\u1ea7m c\u00f3 \u0111\u1ed9 s\u00e2u kh\u00f4ng l\u1edbn.<\/p>\n

E.2 Th\u00ed nghi\u1ec7m xuy\u00ean ti\u00eau chu\u1ea9n SPT:<\/h5>\n

Th\u00ed nghi\u1ec7m xuy\u00ean ti\u00eau chu\u1ea9n SPT l\u00e0 th\u00ed nghi\u1ec7m xuy\u00ean \u0111\u1ed9ng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong h\u1ed1 khoan, \u0111\u01b0\u1ee3c d\u00f9ng l\u00e0m c\u01a1 s\u1edf \u0111\u1ec3 ph\u00e2n chia c\u00e1c l\u1edbp \u0111\u1ea5t \u0111\u00e1, x\u00e1c \u0111\u1ecbnh \u0111\u1ed9 ch\u1eb7t c\u1ee7a \u0111\u1ea5t lo\u1ea1i c\u00e1t, tr\u1ea1ng th\u00e1i c\u1ee7a \u0111\u1ea5t lo\u1ea1i s\u00e9t, x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed l\u1edbp \u0111\u1ea5t \u0111\u1eb7t m\u0169i c\u1ecdc, t\u00ednh to\u00e1n kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i c\u1ee7a c\u1ecdc, c\u0169ng nh\u01b0 thi\u1ebft k\u1ebf m\u00f3ng n\u00f4ng\u2026 Th\u00ed nghi\u1ec7m n\u00e0y c\u00f2n \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh chi\u1ec1u s\u00e2u d\u1eebng kh\u1ea3o s\u00e1t, \u0111\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng ho\u00e1 l\u1ecfng c\u1ee7a \u0111\u1ea5t lo\u1ea1i c\u00e1t b\u00e3o ho\u00e0 n\u01b0\u1edbc.<\/p>\n

E.3 Th\u00ed nghi\u1ec7m c\u1eaft c\u00e1nh:<\/h5>\n

Th\u00ed nghi\u1ec7m c\u1eaft c\u00e1nh \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong c\u00e1c l\u1edbp \u0111\u1ea5t c\u00f3 tr\u1ea1ng th\u00e1i t\u1eeb d\u1ebbo m\u1ec1m \u0111\u1ebfn ch\u1ea3y, trong h\u1ed1 khoan \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh s\u1ee9c kh\u00e1ng c\u1eaft kh\u00f4ng tho\u00e1t n\u01b0\u1edbc c\u1ee7a \u0111\u1ea5t, cung c\u1ea5p th\u00eam c\u00e1c th\u00f4ng tin cho vi\u1ec7c thi\u1ebft k\u1ebf v\u00e0 thi c\u00f4ng c\u00e1c c\u00f4ng tr\u00ecnh ng\u1ea7m c\u00f3 \u0111\u1ed9 s\u00e2u kh\u00f4ng l\u1edbn.<\/p>\n

E.4 Th\u00ed nghi\u1ec7m n\u00e9n ngang trong h\u1ed1 khoan:<\/h5>\n

Th\u00ed nghi\u1ec7m n\u00e9n ngang trong h\u1ed1 khoan \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c l\u1edbp \u0111\u1ea5t r\u1eddi v\u00e0 \u0111\u1ea5t d\u00ednh v\u00e0 th\u1ef1c hi\u1ec7n \u0111\u01b0\u1ee3c \u1edf c\u00e1c \u0111\u1ed9 s\u00e2u kh\u00e1c nhau \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u1eb7c t\u00ednh bi\u1ebfn d\u1ea1ng v\u00e0 m\u00f4 \u0111un bi\u1ebfn d\u1ea1ng ngang c\u1ee7a \u0111\u1ea5t \u0111\u00e1.<\/p>\n

E.5 Th\u00ed nghi\u1ec7m \u00e9p n\u01b0\u1edbc trong h\u1ed1 khoan:<\/h5>\n

Th\u00ed nghi\u1ec7m \u00e9p n\u01b0\u1edbc trong h\u1ed1 khoan \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh t\u00ednh th\u1ea5m n\u01b0\u1edbc, kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 n\u01b0\u1edbc c\u1ee7a \u0111\u00e1 g\u1ed1c n\u1ee9t n\u1ebb. B\u1ea3n ch\u1ea5t c\u1ee7a ph\u01b0\u01a1ng ph\u00e1p th\u00ed nghi\u1ec7m l\u00e0 c\u00e1ch ly t\u1eebng \u0111o\u1ea1n h\u1ed1 khoan b\u1eb1ng c\u00e1c n\u00fat chuy\u00ean m\u00f4n, sau \u0111\u00f3 \u00e9p n\u01b0\u1edbc v\u00e0o c\u00e1c \u0111o\u1ea1n \u0111\u1ea5t \u0111\u00e1 c\u00e1ch ly v\u1edbi c\u00e1c ch\u1ebf \u0111\u1ed9 \u00e1p l\u1ef1c \u0111\u1ecbnh tr\u01b0\u1edbc.<\/p>\n

E.6 Th\u00ed nghi\u1ec7m h\u00fat n\u01b0\u1edbc t\u1eeb h\u1ed1 khoan:<\/h5>\n

Th\u00ed nghi\u1ec7m h\u00fat n\u01b0\u1edbc t\u1eeb h\u1ed1 khoan nh\u1eb1m x\u00e1c \u0111\u1ecbnh l\u01b0u l\u01b0\u1ee3ng, h\u1ec7 s\u1ed1 th\u1ea5m, k\u1ec3 c\u1ea3 c\u1ee7a \u0111\u1ea5t \u1edf th\u00e0nh h\u1ed1 m\u00f3ng, \u0111\u1ed9 d\u1ed1c thu\u1ef7 l\u1ef1c v\u00e0 kh\u1ea3 n\u0103ng c\u00f3 th\u1ec3 sinh ra \u00e1p l\u1ef1c thu\u1ef7 \u0111\u1ed9ng, ph\u1ee5c v\u1ee5 cho c\u00f4ng t\u00e1c thi\u1ebft k\u1ebf ch\u1ed1ng gi\u1eef v\u00e0 ch\u1ed1ng th\u1ea5m cho th\u00e0nh v\u00e0 \u0111\u00e1y h\u1ed1 m\u00f3ng, c\u00f4ng t\u00e1c thi\u1ebft k\u1ebf thi c\u00f4ng h\u1ea1 m\u1ef1c n\u01b0\u1edbc ng\u1ea7m<\/p>\n

E.7 Quan tr\u1eafc n\u01b0\u1edbc:<\/h5>\n

Quan tr\u1eafc n\u01b0\u1edbc \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ch\u1ebf \u0111\u1ed9 bi\u1ebfn \u0111\u1ed5i m\u1ef1c n\u01b0\u1edbc d\u01b0\u1edbi \u0111\u1ea5t trong khu v\u1ef1c kh\u1ea3o s\u00e1t. Ch\u1ebf \u0111\u1ed9 n\u01b0\u1edbc trong \u0111\u1ea5t \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng hai lo\u1ea1i th\u00ed nghi\u1ec7m:
\nE.7.1 \u0110o m\u1ef1c n\u01b0\u1edbc t\u0129nh (\u1ed1ng standpipe)<\/em>: \u0110o m\u1ef1c n\u01b0\u1edbc t\u0129nh (\u1ed1ng standpipe) chi\u1ec1u s\u00e2u \u0111\u1eb7t \u1ed1ng nh\u1ecf h\u01a1n 15 m nh\u1eb1m cung c\u1ea5p c\u00e1c th\u00f4ng tin v\u1ec1 ch\u1ebf \u0111\u1ed9 n\u01b0\u1edbc m\u1eb7t. \u1ed0ng \u0111o n\u01b0\u1edbc cho ph\u00e9p th\u1ea5m v\u00e0o b\u00ean trong tr\u00ean to\u00e0n b\u1ed9 chi\u1ec1u d\u00e0i. C\u00e1c k\u1ebft qu\u1ea3 \u0111o \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho vi\u1ec7c thi\u1ebft k\u1ebf thi c\u00f4ng h\u1ed1 \u0111\u00e0o, t\u01b0\u1eddng t\u1ea7ng h\u1ea7m, \u0111\u1ec1 xu\u1ea5t bi\u1ec7n ph\u00e1p l\u00e0m kh\u00f4 \u0111\u00e1y m\u00f3ng cho vi\u1ec7c thi c\u00f4ng.
\nE.7.2 \u0110o \u00e1p l\u1ef1c n\u01b0\u1edbc theo \u0111\u1ed9 s\u00e2u (\u1ed1ng piezometer)<\/em>: \u0110o \u00e1p l\u1ef1c n\u01b0\u1edbc theo \u0111\u1ed9 s\u00e2u (\u1ed1ng piezometer) \u0111\u1ed9 s\u00e2u \u0111\u1eb7t \u0111\u1ea7u \u0111o ph\u1ee5 thu\u1ed9c v\u00e0o c\u1ea5u t\u1ea1o \u0111\u1ecba t\u1ea7ng v\u00e0 v\u1ecb tr\u00ed t\u1ea7ng ch\u1ee9a n\u01b0\u1edbc. C\u00e1c k\u1ebft qu\u1ea3 \u0111o \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho vi\u1ec7c thi\u1ebft k\u1ebf thi c\u00f4ng c\u1ecdc nh\u1ed3i, t\u01b0\u1eddng trong \u0111\u1ea5t, c\u00e1c gi\u1ea3i ph\u00e1p thi c\u00f4ng theo c\u00f4ng ngh\u1ec7 \u01b0\u1edbt (ch\u1ecdn c\u00f4ng ngh\u1ec7 thi c\u00f4ng th\u00edch h\u1ee3p).<\/p>\n

E.8 Th\u00ed nghi\u1ec7m x\u00e1c \u0111\u1ecbnh \u0111i\u1ec7n tr\u1edf c\u1ee7a \u0111\u1ea5t:<\/h5>\n

Th\u00ed nghi\u1ec7m x\u00e1c \u0111\u1ecbnh \u0111i\u1ec7n tr\u1edf c\u1ee7a \u0111\u1ea5t \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong l\u00f2ng h\u1ed1 khoan theo \u0111\u1ed9 s\u00e2u \u0111\u1ec3 cung c\u1ea5p c\u00e1c th\u00f4ng s\u1ed1 thi\u1ebft k\u1ebf ch\u1ed1ng s\u00e9t v\u00e0 ti\u1ebfp \u0111\u1ea5t.<\/p>\n

E.9 X\u00e1c \u0111\u1ecbnh t\u1ea7ng ho\u1eb7c t\u00fai ch\u1ee9a kh\u00ed<\/h5>\n

Trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p c\u1ea7n x\u00e1c \u0111\u1ecbnh t\u1ea7ng ho\u1eb7c t\u00fai ch\u1ee9a kh\u00ed trong \u0111\u1ea5t c\u00f3 kh\u1ea3 n\u0103ng g\u00e2y nhi\u1ec5m \u0111\u1ed9c ho\u1eb7c ch\u00e1y n\u1ed5 khi khoan c\u1ecdc nh\u1ed3i ho\u1eb7c \u0111\u00e0o h\u1ed1 m\u00f3ng s\u00e2u.<\/p>\n

E.10 Th\u00ed nghi\u1ec7m n\u00e9n t\u0129nh<\/h5>\n

Khi kh\u1ea3o s\u00e1t ph\u1ee5c v\u1ee5 cho thi\u1ebft k\u1ebf k\u1ef9 thu\u1eadt v\u00e0 l\u1eadp b\u1ea3n v\u1ebd thi c\u00f4ng m\u00f3ng c\u1ecdc, ti\u1ebfn h\u00e0nh c\u00f4ng t\u00e1c th\u00ed nghi\u1ec7m n\u00e9n t\u0129nh \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh s\u1ee9c ch\u1ecbu t\u1ea3i c\u1ee7a c\u1ecdc \u0111\u01a1n v\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c \u0111\u1ec3 ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng c\u00e2y c\u1ecdc. Kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 c\u00e1c y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt ph\u1ea3i tu\u00e2n th\u1ee7 theo c\u00e1c ti\u00eau chu\u1ea9n hi\u1ec7n h\u00e0nh c\u00f3 li\u00ean quan.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Th\u00ed nghi\u1ec7m b\u00e0n n\u00e9n hi\u1ec7n tr\u01b0\u1eddng l\u00e0 th\u00ed nghi\u1ec7m m\u00f4 ph\u1ecfng \u0111\u1ebf m\u00f3ng v\u00e0 \u0111\u1ea5t c\u00f4ng tr\u00ecnh khi \u1edf tr\u1ea1ng th\u00e1i t\u1ef1 nhi\u00ean. N\u00f3 \u0111\u01b0\u1ee3c hi\u1ec3u \u0111\u01a1n gi\u1ea3n l\u00e0 vi\u1ec7c kh\u1ea3o s\u00e1t \u0111\u1ecba ch\u1ea5t hi\u1ec7n tr\u01b0\u1eddng tr\u01b0\u1edbc khi x\u00e2y d\u1ef1ng c\u00f4ng tr\u00ecnh. Th\u00f4ng qua th\u00ed nghi\u1ec7m, ch\u00fang ta c\u00f3 th\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c nh\u1eefng th\u00f4ng tin…<\/p>\n","protected":false},"author":1,"featured_media":3362,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3357","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/tailieuxaydung.net\/index.php?rest_route=\/wp\/v2\/posts\/3357","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tailieuxaydung.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tailieuxaydung.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tailieuxaydung.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tailieuxaydung.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3357"}],"version-history":[{"count":5,"href":"https:\/\/tailieuxaydung.net\/index.php?rest_route=\/wp\/v2\/posts\/3357\/revisions"}],"predecessor-version":[{"id":3364,"href":"https:\/\/tailieuxaydung.net\/index.php?rest_route=\/wp\/v2\/posts\/3357\/revisions\/3364"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tailieuxaydung.net\/index.php?rest_route=\/wp\/v2\/media\/3362"}],"wp:attachment":[{"href":"https:\/\/tailieuxaydung.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3357"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tailieuxaydung.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3357"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tailieuxaydung.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3357"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}