Rov qab tam sim no: nws yog dab tsi thiab yuav ua li cas kom tsis txhob poob rau ntawm ntug dej

2024 Tus sau: Malcolm Clapton | [email protected]. Kawg hloov kho: 2023-12-17 03:58

Forewarned yog forearmed. Yog tias koj mus so rau hauv hiav txwv, kawm yuav ua li cas tiv thaiv koj tus kheej los ntawm cov dej ntws rov qab uas tau thov ntau pua tus neeg nyiam lub neej txhua xyoo.

Backflow yog dab tsi?

Qhov thim rov qab (lossis ripple) tam sim no yog qhov tshwm sim ntawm lub hiav txwv ntug dej hiav txwv tam sim no nyob rau ntawm ntug dej hiav txwv. Nws feem ntau tshwm sim thaum dej ntws qis hauv qhov chaw uas muaj cov xuab zeb, reefs lossis shoals ze ntawm ntug dej hiav txwv. Vim yog ntawm lawv, cov dej tsis tuaj yeem rov qab mus rau hauv hiav txwv sib npaug, yog li cov kwj dej tseem ceeb tau nrawm nrawm mus rau hauv qhov chaw nruab nrab ntawm obstacles thiab ploj mus tam sim tom qab lawv. Yog li ntawd, muaj zog tam sim no yog tsim, muaj peev xwm nqa tau ib tug neeg sai li sai tau ntau kaum meters ntawm ntug dej hiav txwv. Qhov dav ntawm qhov tam sim no txawv ntawm 3 mus rau 50 meters, thiab qhov ceev ntawm cov dej ntws hauv nws txawv ntawm 2 km / h txog 20 km / h.

Vim li cas thiaj txaus ntshai?

Raws li kev txheeb cais, ntau dua 80% ntawm kev tuag ntawm cov neeg ua luam dej hauv hiav txwv thiab dej hiav txwv ntug dej hiav txwv tshwm sim qhov tseeb vim qhov rov qab ntws. Lub ntsiab txaus ntshai ntawm xws li ib tug tam sim no yog hais tias nws tshwm sim heev ze rau ntawm ntug dej - qhov twg tsis muaj leej twg xav tias yuav txaus ntshai. Koj tuaj yeem sawv hauv dej ob peb meters ntawm ntug dej thiab mam li nco dheev pom koj tus kheej ntes tau nyob rau hauv lub zog tam sim no. Noj los ntawm surprise, cov neeg raug tsim txom sim sib ntaus sib tua thiab row mus rau ntug dej. Txawm li cas los xij, nws tsis muaj txiaj ntsig los ua qhov no, tus neeg tsuas yog qaug zog thiab tuag. Tsis tas li ntawd, cov neeg uas tsis paub ua luam dej feem ntau yog txaws ze ntawm ntug dej.

Koj yuav nrhiav tau nws nyob qhov twg?

Kev thim rov qab tuaj yeem tshwm sim qhov twg muaj nthwv dej: feem ntau hauv hiav txwv thiab dej hiav txwv, tab sis nws kuj tshwm sim hauv cov pas dej loj. Muaj zog rov qab tam sim no feem ntau tshwm sim nyob rau hauv cov cheeb tsam nrog breakwaters, dams, reefs, offshore Islands, spits thiab shoals. Yog tias koj yuav mus so qhov twg cov neeg caij nkoj nyiam mus ncig, ces koj yuav pom cov dej ntws tawm.

Koj paub nws li cas?

Hauv chav kawm rov qab, feem ntau koj tuaj yeem pom:

• ib daim hlab ntawm seething dej perpendicular mus rau ntug dej;
• ib feem ntawm cov dej nyob ze ntawm ntug dej hiav txwv, sib txawv ntawm cov xim ntawm cov dej saum npoo av;
• ua npuas ncauj uas sai sai ntab tawm ntawm ntug dej hiav txwv mus rau hauv hiav txwv;
• muaj nthwv dej raws tag nrho cov ntug dej hiav txwv, tab sis tsis muaj nthwv dej ntawm ib ntu ob peb meters dav.

Yog tias koj mus ncig ua si txawv teb chaws, nco ntsoov cov kab lus rip tam sim no thiab tsis txhob mus rau hauv dej uas koj pom nws ntawm tus chij thiab cov cim.

Yuav ua li cas yog tias koj ntaus qhov thim rov qab?

Yog tias koj xav tias koj tus kheej raug rub mus rau hauv hiav txwv, sim qw lossis teeb liab rau lwm tus kom ceeb toom cov neeg cawm siav. Tsis txhob ntshai thiab tsis txhob lem tawm tsam tus kwj deg. Hloov chaw, sim ua luam dej ua ke rau ntawm ntug dej: yog tias qhov tam sim no tsis muaj zog heev, koj yuav muaj peev xwm tawm ntawm nws sai sai. Yog tias koj tsis tuaj yeem ua luam dej tawm ntawm qhov tam sim no, ces txuag koj lub zog thiab ua luam dej rau pem hauv ntej nrog qhov tam sim no. Nws yuav qaug zog sai sai, thiab tom qab ntawd koj tuaj yeem ua luam dej mus rau sab, thiab rov qab mus rau ntug dej.

Txaus ntshai npaum li cas! Tej zaum nws zoo dua tsis mus rau hauv dej txhua?

Qhov tseeb, txhua yam tsis txaus ntshai yog tias koj paub tias qhov rov qab ntws ua haujlwm li cas. Ua ntej, tsuas yog txheej sab saud ntawm cov dej txav nrawm, uas txhais tau hais tias nws yuav tsis rub mus rau hauv qab thiab ua rau koj yoj yoj. Qhov thib ob, qhov dav ntawm qhov tam sim no, raws li txoj cai, tsis pub tshaj 20 meters, uas txhais tau hais tias koj tuaj yeem sim tawm ntawm nws los ntawm kev ua luam dej me ntsis raws ntug dej hiav txwv. Thiab thaum kawg, qhov ntev ntawm qhov tam sim no tsis ntev heev: nws yuav tsis nqa koj ntau tshaj 100 meters. Yog tias koj ua luam dej qhov twg muaj cov neeg saib xyuas, lawv yuav ncav cuag koj hauv ob peb feeb.