Izikhathi eziningi lapho sifuna ukuqala ukulima isiqeshana somhlaba, siqaphela ukuthi inhlabathi ayilingani, futhi ngezinye izikhathi itshekile. Kufanele wazi amasu athile ukuze iphansi likwazi ukulinganiswa ngendlela efanele. abantu abaningi bayazibuza indlela yokulinganisa phansi ngokungalingani okuningi ukuze ukwazi ukuhlanyela
Ngakho-ke, kulesi sihloko sizokunikeza amathiphu namasu angcono kakhulu ukuze ufunde ukuthi ungalinganisa kanjani phansi ngokungalingani okuningi.
Ileveli phansi ngokungalingani okuningi
Umsebenzi wokulinganisa insimu ukukhipha i-micro-relief, okuvumela ukuchelela ngisho nendawo yonke. Umthambeka ongaguquguquki, ongaguquguquki kufanele uzuzwe ngenkathi uvumela amanzi ukuba ageleze emiseleni.
Ukulinganisa umhlaba kubalulekile ezinhlelweni zokuchelela amandla adonsela phansi (ngemisele noma ngebhange) uma kuqhathaniswa nokusungulwa kokunisela okunengcindezi (i-sprinkler) noma okunemvamisa ephezulu kwasendaweni (i-micro-sprinkler, inkungu, ukungena ngaphakathi, ukuconsa) lapho kwenzelwa khona ukusiza ezolimo noma ukunciphisa ukuguguleka kwamanzi nomoya.
Ukubala ukuthambeka kwendawo, isikhungo indlela gravity ingasetshenziswa, njengoba ifaneleka kakhulu ngokwesimo senhlabathi, njengendawo eyisicaba kodwa egobile, kanye nesimo lapho isiqondiso somthambeka singacacile.
Izindawo ezidinga ukuchelela amandla adonsela phansi zidinga kakhulu ukuleveliswa. Ukuze wenze lokhu, khetha izindawo ezinemithambeka encane, okungukuthi, izindawo lapho amajika avundlile anamabanga amakhulu. Kamuva izigxobo zibekwe ebangeni elingamamitha angama-25 ukusuka komunye nomunye, ngaleyo ndlela inquma ukuphakama kwendawo. Isilinganiso sabo sibe sesisetshenziswa ukubala i-centroid.
Ubude bubalwa kusukela ku-centroid ngokukhipha noma ngokungeza umehluko wobude ngokusekelwe emthambekeni, okufaka phakathi izikhombisi-ndlela ze-NS ne-EW. Umehluko isilinganiso sokuphakama komhlaba esitholwe ngezikwele ezincane zokuhlehla komugqa phakathi kwezinombolo ze-oda nezinto. Ukuze uthole umehluko wobude, susa ukuphakama kwephrojekthi endaweni ephakeme. Amanani amahle amelela ukusikeka (izikhala ezivulekile) endaweni, amanani angalungile amelela ukugcwaliswa ngokwako (ama-embankments).
Izibalo ezidingekayo
Ukuthola isilinganiso sokusika/ukugcwalisa kusho ukuhlanganisa konke ukusikeka okubalwe ngaphambilini nokugcwalisa ukuze kufike esilinganisweni sokusika/ukugcwalisa esiseduze no-1,20. Ngaphandle kwalokho, indawo ye-centroid kufanele ilungiswe ukuze kuzuzwe inani eliseduze nevelu elilungile. Ukunyakaza komhlaba okudingekayo ukuze kulinganiswe indawo kuhambisana nokunyakaza okumaphakathi okutholwe ngokuphindaphinda indawo yethonya lenqwaba noma indawo enamathiselwe ngesamba sokusikeka.
Ukulinganiswa noma ukulinganiswa komhlaba, iqukethe ikakhulukazi ukususa "izindawo eziphakeme" noma "izindawo eziphansi" ekhona epulazini elithile ngokusebenzisa i-scraper, ukuze amanzi okunisela asetshenziswe ngokuphelele futhi njalo endaweni yawo yonke, ngaphandle kwalokho amanzi emvula azokhipha kahle futhi angeke abangele izinqubo zokuguguleka ezingafuneki.
Nakuba ukuba isicaba kwendawo eniselwayo kuthanda ukuncipha, kwezinye izimo, kusadingeka ukuze kuqedwe izinkinga zamachibi angaphezulu, okungukuthi, ukulungisa ukuntula kwamanzi okukhipha amanzi angaphandle. Lolu hlobo lwe ukwelashwa kuyadingeka ngisho nalapho kusetshenziswa ukuchelela okucindezelayo, njengoba ukunqwabelana kwamanzi angaphezulu kungethula izifo zefungal noma ze-cryptogamous ezinhlobonhlobo zezithelo ezithile kanye nezitshalo ze-herbaceous ezizwela kakhulu kulezi zinkinga.
Njengazo zonke izitshalo ezisebenzisa izinhlelo zokunisela zendabuko zamandla adonsela phansi, njengemisele, amapulatifomu (amatafula) noma ukubeka, kudingeka ukuhamba emhlabeni wonke ukuze kuthuthukiswe ukusebenza kahle kokunisela. Lokhu kubonakala ikakhulukazi ekulinyweni kwerayisi, lapho ukuthuthukiswa kwemiphumela ngenxa yokulawula okungcono kwezinga lamanzi noma ukujula emaqenjini kubaluleke kakhulu.
Izinyathelo zendlela yokulinganisa indawo enokungalingani okuningi
Ukuze silinganise umhlabathi akudingeki sizihlomise nganoma yiluphi uhlobo lobuchwepheshe noma imishini ekhethekile, kwanele ukufundisa imiqondo ethile ebalulekile. Ngaphandle kwalokho, sicela ubekezele njengoba singebona ochwepheshe. Lokhu kuzosithatha ngempela isikhathi eside kunalokho uma kwenziwa uchwepheshe. Kodwa sizobona ukuthi kuwumsebenzi olula futhi sizogcina sikhathele, kodwa seneliseke ukuwenza ngokwethu. Ukuze ulinganise umhlabathi, okudingayo nje amathuluzi ayisisekelo afana neleveli, igeja, ifosholo, ireki, namanye ambalwa.
Ake sibone ukuthi yiziphi izinyathelo zokufunda ukuthi ungaleveli kanjani indawo enokungalingani okuningi:
- Nquma umjikelezo wendawo oyifunayo. Into yokuqala esizoyenza ukuhlonza indawo okufanele siyilinganise futhi siphawule imingcele ehlukanisa indawo eshiwo. Lokhu ungakwenza ngezigxobo ezithile noma ngezinsimbi ezithile kanye nentambo.
- Ngosizo lwegeja, noma ipiki uma umhlabathi uqinile, Sizomba ingaphakathi lendawo ukuze kancane kancane sithole ukujula. Ngemva kwalokho sizosebenzisa ifosholo ukuthulula ukungcola phansi.
- Gcoba futhi ugeze inhlabathi. Ngokulandelayo, ngegeja elifanayo, singaphula noma sisuse amanye amagabade asele. Amageja aphinde asisize ukuba silinganise futhi sihlanganise umhlabathi ngokususa umhlaba usuka phezulu uye kwephansi kakhulu. Okulandelayo, sizosusa phansi, sisuse noma yimaphi amatshe angase asale. Njengoba ingxenye engenhla yereki (amazinyo ebheke phezulu) ihlale ibheke kithi, sizokwazi ukubeka izinga kangcono indawo yonke.
- Hlola izinga. Ukusebenzisa into elula njengezinga lomoya, sizohlola ukuthi ubuso bethu busezingeni. Uma sesikwazile ukubeka phansi, sekuyisikhathi sokuqeda umsebenzi.
- Qedela umsebenzi wokusebenzisa. Kuye ngokusetshenziswa esizokunikeza, kunezindlela ezahlukene zokulinganisa indawo. Mhlawumbe sifuna nje kube umbhede wezimbali noma amabhodwe ezitshalo, futhi akudingeki senze noma yini enye. Kodwa futhi kungenzeka ukuthi siye salinganisa indawo yokufakwa kwe-gazebo engadini. Kulokhu, i-formwork ingenziwa futhi igcwaliswe ngodaka lokuzilinganisa. Lapha kufanele ubhebhethekise phansi ngongqimba lukakhonkolo kanye nongqimba lukasimende phezulu.
Ngithemba ukuthi ngalolu lwazi ungafunda kabanzi mayelana nendlela yokulinganisa phansi ngokungalingani okuningi.