Leḥsab n ttawilat n lqaɛa yettwasnilen s yiman-nsen

Leḥsab n yiḍarren n usniles n yiman

Ttxil sken-d lqis s milimitren

X - Tehri n texxamt
Y - Teɣzi n texxamt
Ḍefret lqis n umgarad n teɣzi deg ṛebɛa n tɣemmar n texxamt, deg tneqḍin A, B, C, D.
I wakken ad tgeḍ aya, sseqdec aswir n lebni.

Segzi-d lqedd ameẓyan n lqaɛa n usniles n yiman.

S waya, ad yettwaḥseb lqidar n tɣawsiwin yettwaḥettmen s yimitren igasasen yernu ad d-ttwabeddent tɣemmar deg tɣemmar n texxamt.

Ahil-a ad yeḥseb azal n tɣawsiwin i lqaɛa n usniles n yiman, s lḥeqq n umgired n tɣerɣert deg tɣemmar.
Ad tzemreḍ ad tḥesbeḍ s tɣawla ugar ssuma n tɣawsiwin.

Leḥsab n ttawilat n lqaɛa yettwasnilen s yiman-nsen

Lfayda tameqrant n lqaɛa n usniles n yiman d akken iɣerruba n usniles uslig ay yettwasqedcen fell-as ttgen-d tajumma n tlemmast yerna d tazegzawt war ma yella-d kra n lmejhud n usnerni seg tama-nnek. Dɣa d aya ay yejjan iḍarren am wigi ad ttwaḥemmlen ladɣa ass-a.
Tzemreḍ ad tceččareḍ iḍarren s timmad-ik. Ayen akk i ilaqen i waya d tissin n tuɣzi d tɣerɣert n texxamt, lqedd-is deg tɣemmar, am wakken ara tissineḍ azal ameẓyan n tɣerɣert n tmeẓẓuɣt, deffir waya ahil-nneɣ ad yezmer ad ak-d-iḥess azal n tɣawsa arma d 100. ččuren, s leḥsab n umgired n tɣerɣert.

Lfaydat n lqaɛa yettwaferqen

1. Addaw n lqaɛa am tagi d tazegzawt, war lḥirfa neɣ lḥirfa.
2. Tudert n uxeddim n yiḍarren n usnerni n yiman tettaweḍ 40-50 n yiseggasen.
3. Els tanekra.
4. Ur ḥwaǧen ara aḥareb uslig.

Aheggi n lqaɛa

Asersi n lqaɛa yettwasfeḍen d ayen isehlen aṭas, dɣa aṭas n medden ay yessnen ad t-xedmen s yiman-nsen, war ma rran iman-nsen ɣer yimazzayen (specialistes). Maca llant kra n tɣawsiwin n tfelwit dagi.
Ihi, uqbel ad tebduḍ ad tesbeddeḍ lqaɛa, ilaq ad tḥeggiḍ taxxamt. I wakken ad xedmen aya, ttwakksen-d lqaɛa taqburt, tifelwiyin n tlemmast d teggura. Tajumma n lqaɛa tettwasniles. Aya yezmer ad d-yili s useqdec n tmacint n tmeẓẓuɣt (machine de grinding) igerrzen neɣ s tmeẓẓuɣt n wuzzal. Syin, ma yella llant tceqfiqin deg wakal, yessefk ad tent-ldin s useqdec n tmeẓẓuɣt n kraḍ n yigensasen.
Cfu belli ma yella ad tesbeddeḍ lqaɛa i d-yeffɣen s ufella n lqaɛa n useklu, ilaq ad t-tesǧehdeḍ di tazwara s tmeẓẓuɣt (mesh) igerrzen.
Deffir waya, yettwaɛqal lqedd n tɣerɣert n lqaɛa s useqdec n tmeẓẓuɣt. Ɣef leḥsab n tmiḍrant-a, ttwaxedment tmeẓriwin deg yiɣerbazen arma d acu n lqedd ara d-yesfeḍ lqaɛa. Ar lqedd-a, rnu-as 2,5 n yisantimitren, ttwaṣeggmen yiɣerruba seg lgaz d ttawilat niḍen n ussemres.
Syin, ttwasizdgen-d tikkelt niḍen lqaɛa yerna ttwaṣeggmen s lgaz s lbuḍ ay d-yettwawehhan i lmend n waya.
Tura lqaɛa tettwasniles s lḥemla, ttwaḍelqent tceqfiqin d tceqfiqin, yerna ttwaṣeggmen lbaṭel. Deffir waya, ilaq ad yettwasbedd lqaɛa. Yerna aya yettkemmil aḥric n uheggi. Tzemreḍ ad tebduḍ ad tesbeddeḍ lqaɛa.

Asersi n lqaɛa yettwaferqen

Akken ad tessufɣeḍ lqaɛa s tɣawla, efk-as i yiwen n umɛawen ad ixleḍ tifrat-nni deg wakud aydeg ara tessufɣeḍ.
Heggi-d tifrat-nni s lmendad n tmuɣliwin yellan deg tfelwit. Akken ad t-id-tḥeqqeḍ belli tifrat-nni ad tili d yiwet, ur t-tessufuɣeḍ ara akk aman deg tmeqbert s yiwet n tikkelt. Ad yili waya d aḥric ameqqran deg-s. Xelḍ tifrat yellan deg-s. I wakken ad t-txedmeḍ, d ayen yelhan ma tesqedceḍ taɣerɣert n trisiti s tmeẓdit (attachement) igerrzen. Yerna ala mi ara d-tuɣal tifrat-nni d taɣect n tmeẓẓuɣt (masse homogène), ad t-id-tessufɣeḍ deg-s waman ay d-yeqqimen.
Lqaɛa tettfeggiḍ deg tama n tewwurt, seg tlemmast n tlemmast n tewwurt n texxamt. Sseḍ lxelḍa-nni s yiḥricen, ssemlil lqaɛa deffir yal yiwen s useqdec n tmeẓẓuɣt n tmeẓẓuɣt. Aya yettɛawan deg tukksa n kra n tbuciḍant n lhawa ay izemren ad tekcem deg tifrat-nni yerna yettḍemmil aḍḍan n tmeẓdiyin (couche) ay d-yettwasbedden s tɣawla.
Seg usfeḍ n yiwen n uḥric ɣer wayeḍ, ur ilaq ara ad yili wakud yugar 10 n tedqiqin.
Ma yella lqaɛa tettqerrib, d tin ay yettaṭṭafen 3-6 n tsaɛtin ɣef leḥsab n tmarka n tifrat, yessefk ad ttwaḥebsen yiḍarren d yibeddilen n tmes deg texxamt.