Yuav ua li cas lom zem npaum li cas koj cov me nyuam tau ua si nyob rau hauv lub sandbox tshiab nyob ntawm qhov tsawg kawg nkaus ntawm cov xuab zeb nyob rau hauv lub thawv. Yuav tsum muaj xuab zeb txaus los ua si nrog thiab tsim nrog.
Yuav ua li cas xam cov xuab zeb zoo rau lub sandbox?
Xav xam cov xuab zeb xav tau rau lub sandbox, muab qhov ntev, dav thiab qhov siab (hauv cm) thiab noj 60% ntawm qhov no rau qhov zoo tagnrho filling qhov siab. Xam qhov hnyav hauv kilograms los ntawm kev muab qhov ntim los ntawm cov xuab zeb ntom ntom (feem ntau 1.3 g / cc) thiab faib los ntawm 1,000. Tsuas yog siv cov cim tshwj xeeb ua si xuab zeb.
Yuav ua li cas xam cov xuab zeb xav tau:
Xav seb koj xav tau cov xuab zeb ntau npaum li cas rau koj lub sandbox, nws muaj cov qauv yooj yim. Muab qhov ntev los ntawm qhov dav thiab qhov siab ntawm qhov npaj sandbox (ob qho tib si hauv centimeters). Koj tuaj yeem nrhiav lub tshuab xam zauv tshwj xeeb rau qhov no hauv Is Taws Nem. Txhawm rau piav qhia qhov no, ntawm no yog ib qho piv txwv suav rau ib lub square sandbox nrog ntug ntev ntawm 1.20 m thiab qhov siab ntawm 50 cm:
120 × 120 x 50=720,000
Vim lub sandbox yuav tsum tsuas yog ib nrab ntawm cov xuab zeb, xam 60 feem pua ntawm qhov tshwm sim. Qhov no txhais tau tias koj cov menyuam muaj xuab zeb txaus los ua si nrog, tab sis tsis ntau npaum li nws tau shoveled hla ntug sab nraud.
720,000 x 60: 100=432,000
Piv txwv tias qhov ceev ntawm cov xuab zeb yog 1.3 g / cm³, muab tus lej tau los ntawm 1.3 thiab muab faib los ntawm 1000. Qhov tshwm sim yog qhov xav tau ntawm cov xuab zeb hauv kilograms.
432,000 x 1.3: 1,000=561.6 kg sand
Puas xuab zeb kuv yuav yuav?
Yuav tsuas tshaj tawm ua si xuab zeb. Qhov no yog tshuaj xyuas cov pa phem thiab kab mob. Tsis tas li ntawd, cov qoob loo loj tuaj yeem tsuas muaj qhov loj me me. Cov xuab zeb uas zoo heev tuaj yeem nqus tau los ntawm cov menyuam yaus ua si, thaum cov xuab zeb uas ntxhib dhau tuaj yeem ua rau menyuam yaus cov tawv nqaij rhiab heev.
Kuv tuaj yeem mus ua si xuab zeb nyob qhov twg?
Koj tuaj yeem tau txais cov xuab zeb ua si hauv cov khw muag khoom kho vajtse, cov chaw ua vaj tsev zoo thiab tau kawg hauv online (€ 12.00 ntawm Amazon). Nws yog feem ntau ntim rau hauv 25 kg hnab. Thov them sai sai rau cov nqi thauj khoom thaum tso qhov kev txiav txim. Yog tias koj thauj cov xuab zeb hauv koj lub tsheb, ces muab ib lub tarpaulin rau sab hauv kom zoo, qhov no yuav ua rau nws yooj yim dua los ntxuav tom qab yog tias lub hnab tawg.
Cov lus qhia siv tau rau kev yuav xuab zeb:
- Xiav cov xuab zeb kom raug
- zoo tagnrho qib: 60%
- tsuas yuav tshwj xeeb ua si xuab zeb
- Qhov zoo ntawm kev ua si xuab zeb: tsis muaj cov tshuaj phem thiab cov kab mob, cov qoob loo zoo tagnrho
Tip
Rau lub hom phiaj ntawm koj cov menyuam, tsuas yog siv cov xuab zeb ua si tshwj xeeb. Nws tau raug sim thiab tsis muaj tshuaj phem lossis kab mob.
