Imyaka yashize, mukubaka inzu cyangwa gusana, yitabwaho cyane kugirango ikoreshwe imbaraga. Hamwe nibiciro bya lisansi iriho, ibi bifite akamaro cyane. Byongeye kandi, bisa nkaho kuzigama bizakomeza kubona akamaro. Kugirango uhitemo neza ibihimbano hamwe nubunini bwibikoresho muri keke yinzego zifunze (inkuta, hasi, igisenge, igisenge, igisenge) Ugomba kumenya neza ibikoresho byumuriro. Ibi biranga byerekanwe kubikoresho hamwe nibikoresho, kandi biracyakenewe kubishushanyo mbonera. N'ubundi kandi, birakenewe gukemura icyo kibanza cyubaka inkuta kuruta kubasusurutsa, ubunini bugomba kuba buri gice.
Ni ubuhe buryo bwo kwidagadura no kurwanya ubushyuhe
Mugihe uhitamo ibikoresho byubwubatsi bwo kubaka, birakenewe kwitondera ibiranga ibikoresho. Imwe mu myanya y'ingenzi ni umuco mu bushyuhe. Yerekanwa na vermal ikora neza. Ubu ni bwo bushyuhe bushobora kuyobora kimwe cyangwa ikindi kintu kuri buri gihe. Ni ukuvuga, ntoya iri konsere, ibibi bikora ibikoresho bikora ubushyuhe. Kandi ubundi, ibara ryinshi, ubushyuhe butangwa neza.
Igishushanyo cyerekana itandukaniro mumikorere yubushyuhe bwibikoresho
Ibikoresho bifite imishinga mike yubushyuhe bukoreshwa mugushishoza, hamwe na hejuru - kwimura cyangwa gukuraho ubushyuhe. Kurugero, imirasire ikozwe muri aluminiyumu, umuringa cyangwa ibyuma, kuko ariho ubushyuhe burundu, ni ukuvuga, bafite ubushyuhe bwinshi bwo kwihangana. Kubijyanye no kwiyemeza, ibikoresho bifite ubushyuhe buke bukoreshwa - nibyiza bibujwe ubushyuhe. Mugihe ikintu kigizwe nibikoresho byinshi, imikorere yubushyuhe isobanurwa nkumubare wa coefficient yibikoresho byose. Iyo kubara, imyitwarire yubushyuhe bwa buri "cake" ibarwa, indangagaciro zabonetse muri make. Muri rusange, tubona ubushobozi bwubushyuhe bwo kugenzura imiterere (inkuta, igitsina, igisenge).
Ubushyuhe bukoreshwa bwibikoresho byubaka byerekana ingano yubushyuhe yabuze kuri buri gihe.
Hariho kandi igitekerezo nkicyo kirwanya ubushyuhe. Irerekana ubushobozi bwibikoresho kugirango birinde igice. Ni ukuvuga, ni agaciro gashingiye kumikorere yubushyuhe. Niba kandi ubonye ibikoresho bifite ubushyuhe bukabije, birashobora gukoreshwa mumazu yubushyuhe. Urugero rwibikoresho byubushyuhe burashobora kuba amabuye y'agaciro azwi cyangwa masalt, ifuro, nibindi. Ibikoresho hamwe no kurwanya ubushyuhe buke birakenewe kubusa cyangwa kwimura ubushyuhe. Kurugero, aluminium cyangwa imirasire yibyuma ikoreshwa mugushyushya, kuko bahabwa neza.
Imbonerahamwe yubushyuhe bwibikoresho byubushuhe
Kugirango inzu yoroshe gukomeza ubushyuhe mu gihe cy'itumba no gukonjesha mu gihe, imikorere yubushyuhe bwinkuta, hasi kandi igisenge kigomba kuba gisobanutse neza kibarwa kuri buri karere. Ibigize "cake" yinkuta, igitsina nigisenge, umubyimba wibikoresho ufatwa nkiyi konti kugirango umubare rusange utabanje (kandi mwiza - byibuze - byasabwe akarere kawe.
Coeffic yubushyuhe bwibikoresho byibikoresho bigezweho byo gushyiraho inyubako
Mugihe uhisemo ibikoresho ari ngombwa gusuzuma ko bamwe muribo (ntabwo bose) mubihe byubushuhe byinshi bikorwa neza cyane. Niba hari ikibazo nk'iki mugihe cyo gukora igihe kirekire, mumibare, imikorere yubushyuhe ikoreshwa kuri iyi leta. Ubushyuhe butwara neza Coefficient yibikoresho nyamukuru bikoreshwa mugushinyagure byerekanwe mumeza.
Izina ryibikoresho | Coefficient yubushyuhe W / (M · ° C) | ||
---|---|---|---|
Muburyo bwumutse | Hamwe n'ubushuhe busanzwe | Hamwe n'ubushuhe bukabije | |
WUMVA WOOLEN | 0.036-0.041 | 0.038-0.044 | 0.044-0.050 |
Amabuye yubuzima bwa mine ya 25-50 kg / m3 | 0.036 | 0.042. | 0 , 045 |
Amabuye yuburyo bwa minerval 40-60 kg / m3 | 0.035 | 0.041 | 0.044 |
Amabuye yuburyo bwa mine ya 80-125 kg / m3 | 0.036 | 0.042. | 0.045 |
Amabuye yubumwe bwa mine 140-175 kg / m3 | 0.037 | 0,043. | 0,0456. |
Amabuye yubwoya bwa mine 180 kg / m3 | 0.038 | 0.045 | 0,048. |
Amazi yikirahure 15 kg / m3 | 0,046. | 0.049. | 0.055 |
Amazi yikirahure 17 kg / m3 | 0.044 | 0.047. | 0,053 |
Amazi y'Ikirahure 20 kg / m3 | 0.04. | 0,043. | 0,048. |
Amazi yikirahure 30 kg / m3 | 0.04. | 0.042. | 0,046. |
Amazi yikirahure 35 kg / m3 | 0.039 | 0.041 | 0,046. |
Amazi y'Ikirahure 45 kg / m3 | 0.039 | 0.041 | 0.045 |
Amazi yikirahure 60 kg / m3 | 0.038 | 0,040. | 0.045 |
Amazi yikirahure 75 kg / m3 | 0.04. | 0.042. | 0.047. |
Amazi yikirahure 85 kg / m3 | 0.044 | 0,046. | 0,050 |
Polystyrene Foam (Foam, PPS) | 0.036-0.041 | 0.038-0.044 | 0.044-0.050 |
Yagaragaye yaguye polystyrene foam (epps, xps) | 0,029 | 0.030 | 0.031 |
Ifuro ryerekanye, igisubizo cya beedrete, 600 kg / m3 | 0.14. | 0.22. | 0.26. |
Bram Beto, Betote beto kuri sima, 400 kg / m3 | 0.11 | 0.14. | 0.15 |
BEAM Beto, BEERATST yatangajwe kumuti wa lime, 600 kg / m3 | 0.15 | 0.28. | 0.34. |
BEAM Beto, Byera Beto kumuti wa lime, 400 kg / m3 | 0.13. | 0.22. | 0.28. |
Ikirahure kibisi, crumbe, 100 - 150 kg / m3 | 0.043-0.06 | ||
Ikirahure kibikwa, crumbe, 151 - 200 kg / m3 | 0.06-0.063 | ||
FoamWalk, mwana, 201 - 250 kg / m3 | 0.066-0-08 | ||
Ikirahure kibisi, crumbe, 251 - 400 kg / m3 | 0.085-0.1 | ||
Guhagarika ifuro 100 - 120 kg / m3 | 0.043-0.045 | ||
Guhagarika ifuro 121-170 kg / m3 | 0.05-0.062 | ||
Guhagarika ifuro 171 - 220 kg / m3 | 0.057-0.063 | ||
Guhagarika ifuro 221 - 270 kg / m3 | 0.073 | ||
Ekwata. | 0.037-0.042 | ||
Polyurethane Foolder (PPU) 40 kg / m3 | 0,029 | 0.031 | 0.05 |
Polyurethane Foam (PPU) 60 kg / m3 | 0.035 | 0.036 | 0.041 |
Polyurethane Foolder (PPU) 80 kg / m3 | 0.041 | 0.042. | 0.04. |
Polyeneetylene Yadoze | 0.031-0.0388 | ||
Vacuum | |||
Ikirere + 27 ° C. ATM 1 | 0,026. | ||
Xenon | 0.0057 | ||
Argon | 0.0177 | ||
AERGEL (Aspen Aerogels) | 0,014-0.021 | ||
Shagkovat | 0.05 | ||
Vermikulitis | 0.064-0.07.07.074 | ||
Reberi | 0.033 | ||
Impapuro za cork 220 kg / m3 | 0.035 | ||
Impapuro za Cork 260 kg / m3 | 0.05 | ||
Mats ya Basalt, Canvas | 0.03-0.04 | ||
Tow | 0.05 | ||
Perlite, 200 kg / m3 | 0.05 | ||
Perlite yiruka, 100 kg / m3 | 0.06. | ||
Ibisahani by'igifuni, 250 kg / m3 | 0.054. | ||
Polystyrevbeton, 150-500 kg / m3 | 0.052-0.14 | ||
Tube, 45 kg / m3 | 0.038 | ||
Amabuye y'agaciro ku bituru, 270-350 kg / m3 | 0.076-0.09.096 | ||
Igorofa ya cork, 540 kg / m3 | 0,078. | ||
Tekinike, kg 50 kg / m3 | 0.037 |
Ingingo kuri iyo ngingo: Swan Cleard Stantens: Abashakanye b'igice ku buntu, ubudahemuka bw'umukara ku cyuzi, umukobwa na set, icapiro
Igice cyamakuru gifatwa namahame yohereza ibiranga ibikoresho bimwe (snip 23-02-2003, sp 50.13330.20133030.019, snip ii-(Umugereka wa 2). Ibyo bikoresho bitanditswe mumibare biboneka kurubuga. Kubera ko nta bipimo, abakora batandukanye barashobora gutandukana cyane, kuko iyo bagura, witondere ibiranga buri kintu cyaguzwe.
Imbonerahamwe yubushyuhe bwibikoresho byo kubaka
Inkuta, hasi, hasi, irashobora gutangwa mubikoresho bitandukanye, ariko byaragaragaye ko iy'amatara yibikoresho byo kubaka bisanzwe ugereranije namatafari. Nzi ko ibi bikoresho ibintu byose byoroshye gukora amashyirahamwe nayo. Imbonerahamwe izwi cyane itandukaniro riri hagati yibikoresho bitandukanye byerekanwe neza. Imwe nkiyi nkiyi iri mu gika kibanziriza iki, icya kabiri ni kugereranya urukuta rw'amatafari n'urukuta rw'ibiti - rwerekanwe hepfo. Niyo mpamvu kurukuta rw'amatafari nibindi bikoresho bifite imyitwarire minini yubushyuhe, ibikoresho byubushyuhe bwatoranijwe. Kugirango byoroshye guhitamo, imikorere yubushyuhe bwibikoresho nyamukuru byubaka byagabanijwe kumeza.
Gereranya ibikoresho bitandukanye
Ibikoresho byumutwe, ubucucike | Coefficient ya Tormal | ||
---|---|---|---|
muburyo bwumutse | hamwe n'ubushuhe busanzwe | Hamwe n'ubushuhe bukabije | |
CPR (CEVE-UMUTI W'IKIZA) | 0.58. | 0.76 | 0.93 |
Lime-Sandy Igisubizo | 0.47 | 0,7. | 0.81 |
Plaque | 0.25. | ||
BEAM Beto, Byerekanwe Beto kuri sima, 600 kg / m3 | 0.14. | 0.22. | 0.26. |
BEAM Beto, Byerekanwe Beto kuri sima, 800 kg / m3 | 0.21 | 0.33 | 0.37 |
Ifuro ryeruye, yateje inono kuri sima, 1000 kg / m3 | 0.29. | 0.38. | 0.43 |
Beam beto, amateur aerad beto, 600 kg / m3 | 0.15 | 0.28. | 0.34. |
Ifuro rya beto, amateur aerad beto, 800 kg / m3 | 0.23. | 0.39 | 0.45 |
Ifuro rya beto, amateur aerad beto, 1000 kg / m3 | 0.31 | 0.48. | 0.55 |
Idirishya | 0.76 | ||
Arbolit | 0.07-0-7 | ||
Beto hamwe na kamere karemano, 2400 kg / m3 | 1.51 | ||
Beto yoroheje hamwe na pimes, 500-1200 kg / m3 | 0.15-0.44 | ||
Beto kuri granular, 1200-1800 kg / m3 | 0.35-0.58 | ||
Beto kuri boiler slag, 1400 kg / m3 | 0.56. | ||
Beto kumenagura amabuye, 2200-2500 kg / m3 | 0.9-1.5 | ||
Beto kuri lisanse ya lisansi, 1000-1800 kg / m3 | 0.3-0.7 | ||
Ceramic block yatowe | 0,2 | ||
Vercidulitobeton, 300-800 kg / m3 | 0.08-0.21 | ||
Ceramzitetoton, 500 kg / m3 | 0.14. | ||
Ceramzibeton, 600 kg / m3 | 0.16. | ||
Ceramzibeton, 800 kg / m3 | 0.21 | ||
Ceramzitetoton, 1000 kg / m3 | 0.27. | ||
Ceramzibeton, 1200 kg / m3 | 0.36. | ||
Ceramzitetoton, 1400 kg / m3 | 0.47 | ||
Ceramzibeton, 1600 kg / m3 | 0.58. | ||
Ceramzibeton, 1800 kg / m3 | 0,66 | ||
Ububiko bwa ceramic buri gihe kuri CPR | 0.56. | 0,7. | 0.81 |
Masonry kuva ku matafari ya Ceramic kuri CPR, 1000 kg / m3) | 0.35 | 0.47 | 0.52. |
Masonry kuva ku matafari ya Ceramic kuri CPR, 1300 kg / m3) | 0.41 | 0.52. | 0.58. |
Masonry kuva ku matafari ya Ceramic kuri CPR, 1400 kg / m3) | 0.47 | 0.58. | 0.64 |
Masonry kuva ku matafari yuzuye muri CPR, 1000 kg / m3) | 0,7. | 0.76 | 0.87 |
Masonry kuva ku matafari ya Miricle ya Miricali kuri CPR, 11 | 0.64 | 0,7. | 0.81 |
Masonry avuye mu matafari ya Miricle ya Miricali kuri CPR, 14 | 0.52. | 0.64 | 0.76 |
Ubuzima bwa Hejuru 1400 KG / M3 | 0.49 | 0.56. | 0.58. |
Ubuzima bwa Hejuru 1 + 600 kg / m3 | 0.58. | 0.73 | 0.81 |
Ubuzima bwa Limes 1800 KG / M3 | 0,7. | 0.93 | 1.05 |
Ubuzima bwa Limes 2000 KG / M3 | 0.93 | 1,16 | 1.28. |
Umucanga w'ubwubatsi, 1600 kg / m3 | 0.35 | ||
Granite | 3,49. | ||
Marble | 2,91 | ||
Cerahwet, amabuye, 250 kg / m3 | 0.1. | 0.11 | 0.12. |
Cerahwet, amabuye, 300 kg / m3 | 0.108. | 0.12. | 0.13. |
Cerahwet, amabuye, 350 kg / m3 | 0.115-0.12 | 0.125 | 0.14. |
Cerahwet, amabuye, 400 kg / m3 | 0.12. | 0.13. | 0.145 |
Cerahwet, amabuye, 450 kg / m3 | 0.13. | 0.14. | 0.155 |
Cerahwet, amabuye, 500 kg / m3 | 0.14. | 0.15 | 0.165 |
Cerahwet, amabuye, 600 kg / m3 | 0.14. | 0.17 | 0.19. |
Cerahwet, amabuye, 800 kg / m3 | 0.18. | ||
Amasahani ya gypsum, 1100 kg / m3 | 0.35 | 0.50 | 0.56. |
Ibyapa bya Gypsum, 1350 kg / m3 | 0.23. | 0.35 | 0.41 |
Ibumba, 1600-2900 kg / m3 | 0.7-0.9 | ||
Ibumba ryibumba, 1800 kg / m3 | 1,4. | ||
Cerahwet, 200-800 kg / m3 | 0.1-0,18 | ||
Ceramzitetone ku mucanga wa quarz hamwe na pisine, 800-1200 kg / m3 | 0.23-0.41 | ||
Cenramzibeton, 500-1800 kg / m3 | 0.16-0,66. | ||
Ceramzibeton ku mucanga wa Perlite, 800-1000 kg / m3 | 0.22-0.28 | ||
Amatafari, 1800 - 2000 kg / m3 | 0.8-0.16 | ||
Ceramic ireba amatafari, 1800 kg / m3 | 0.93 | ||
Kurambika ubucucike bwo hagati, 2000 kg / m3 | 1.35 | ||
Impapuro za plaque, 800 kg / m3 | 0.15 | 0.19. | 0.21 |
Impapuro za Plasbonary, 1050 kg / m3 | 0.15 | 0.34. | 0.36. |
PLYWOD YASANZWE | 0.12. | 0.15 | 0.18. |
DVP, Chipboard, 200 kg / m3 | 0.06. | 0.07 | 0.08. |
DVP, Chipboard, 400 kg / m3 | 0.08. | 0.11 | 0.13. |
DVP, Chipboard, 600 kg / m3 | 0.11 | 0.13. | 0.16. |
DVP, Chipboard, 800 kg / m3 | 0.13. | 0.19. | 0.23. |
DVP, chipboard, 1000 kg / m3 | 0.15 | 0.23. | 0.29. |
Linoleum Pvc ku bushyuhe bushingiye ku bushyuhe, 1600 kg / m3 | 0.33 | ||
Linoleum Pvc ku bushyuhe bushingiye ku bushyuhe, 1800 kg / m3 | 0.38. | ||
Linoleum Pvc ishingiye ku ngingo, 1400 kg / m3 | 0,2 | 0.29. | 0.29. |
Linoleum Pvc ishingiye ku ngingo, 1600 kg / m3 | 0.29. | 0.35 | 0.35 |
Linoleum PVC ishingiye ku gitsina, 1800 kg / m3 | 0.35 | ||
Amabati Asbetic Flat, 1600-1800 kg / m3 | 0.23-0.35 | ||
Itapi, 630 kg / m3 | 0,2 | ||
Polycarbonate (Impapuro), 1200 kg / m3 | 0.16. | ||
Polystyrevbeton, 200-500 kg / m3 | 0.075-0.0855 | ||
Ubuhungiro, 1000-1800 KG / M3 | 0.27-0,63 | ||
Fiberglass, 1800 kg / m3 | 0.23. | ||
Tile, 2100 kg / m3 | 1,1 | ||
Ceramic Tile, 1900 kg / m3 | 0.85 | ||
Tile pvc, 2000 kg / m3 | 0.85 | ||
Lime plaster, 1600 kg / m3 | 0,7. | ||
Stucco sima-umucanga, 1800 kg / m3 | 1,2 |
Ingingo ku ngingo: Siphon yo gukaraba imashini: Niki cyiza cyo guhitamo?
Ibiti ni kimwe mu bikoresho byo kubaka hamwe nubwiherero buke ugereranije. Imbonerahamwe itanga amakuru yerekana mumabuye atandukanye. Mugihe ugura, menya neza kubona ubucucike no gukorana mumikorere yubushyuhe. Ntabwo bose ari, nkuko byanditswe mu nyandiko ngenderwaho.
Izina | Coefficient ya Tormal | ||
---|---|---|---|
Muburyo bwumutse | Hamwe n'ubushuhe busanzwe | Hamwe n'ubushuhe bukabije | |
Pinusi, fir kuri fibre | 0.09 | 0.14. | 0.18. |
Pinusi, inkoni kuruhande rwa fibre | 0.18. | 0.29. | 0.35 |
Igiti kuri fibre | 0.23. | 0.35 | 0.41 |
Igiti cyanditse kuri fibre | 0.10. | 0.18. | 0.23. |
Igiti cork | 0.035 | ||
Birch | 0.15 | ||
Imyerezi | 0.095 | ||
Reberi karemano | 0.18. | ||
Ikarita | 0.19. | ||
Lisa (ubushuhe bwa 15%) | 0.15 | ||
Inzara | 0.13. | ||
Igisaku | 0.07-0.09.093 | ||
Tow | 0.05 | ||
Parquet Oak | 0.42. | ||
Igice cya Parquet | 0.23. | ||
Parquet Packer | 0.17 | ||
Fir | 0.1-0.26 | ||
Poplar | 0.17 |
Ibyuma bikozwe neza cyane. Akenshi ni ikiraro cyubukonje mu gishushanyo. Kandi ibi kandi birakenewe kuzirikana, gukuraho kuvugana mu buryo butaziguye ukoresheje ibice bitwikiriye ubushyuhe na gaskes, bitwa icyuho cya The thermal. Ubushyuhe bwimiti yibyuma bigabanywa kumeza.
Izina | Coefficient ya Tormal | Izina | Coefficient ya Tormal | |
---|---|---|---|---|
Umuringa | 22-105 | Aluminium | 202-236 | |
Umuringa | 282-390. | Umuringa | 97-111 | |
Ifeza | 429. | Icyuma | 92. | |
Amabati | 67. | Ibyuma | 47. | |
Zahabu | 318. |
Uburyo bwo Kubara Urukuta
Kugirango imbeho mu nzu yari ishyushye, kandi mu gihe gikonje, birakenewe ko inyubako zishyirwaho (inkuta, igitsina, igisenge / igisenge / igisenge) kigomba kuba gifite ubushyuhe. Kuri buri karere, agaciro nicyo. Biterwa nubushyuhe busanzwe nubushuhe ahantu runaka.
Ubushyuhe bwo Kurwanya Ubushyuhe burinzwe
Kubaka mu Turere y'Uburusiya
Kugirango fagitire yo gushyushya kuba nini cyane, birakenewe guhitamo ibikoresho byubaka nubunini bwazo kuburyo irwanya ubushyuhe rwose ntabwo ari munsi yimeza.
Ingingo ku ngingo: Hitamo igikarabiro cyiza cyo gutanga
Kubara umubyimba wurukuta, umubyimba wibitekerezo, kurangiza ibice
Kugirango ubwumvikane bugezweho, ibintu biraranga mugihe urukuta rufite ibice byinshi. Usibye imiterere ishyigikira, hari ibirego, kurangiza ibikoresho. Buri kimwe mu bice bifite ubunini bwacyo. Nigute ushobora kumenya ubunini bwabasuji? Kubara biroroshye. Byuzuye muri formula:
Formula yo kubara imiti
R ni ubushyuhe bukabije;
p - Ubunini bwa metero;
K ni konseye yubushyuhe.
Mbere bigomba guhitamo ibikoresho uzakoresha mugihe cyo kubaka. Byongeye kandi, birakenewe kumenya neza ubwoko bwurukuta buzaba insujie, imitako, nibindi N'ubundi kandi, buri wese muri bo agira uruhare mu kwishinyagurira mu bushyuhe, kandi mu bushyuhe bwibikoresho byo kubaka byitabwaho mu kubara.
Ubwa mbere, kurwanya ubushyuhe bwibikoresho byubaka bifatwa (aho urukuta, rwuzuzanya, nibindi) ruzubakwa, noneho ubunini bwamafaranga yatoranijwe bwatoranijwe "ku ihame risigaye". Biracyashoboka kuzirikana ibiranga ubushyuhe bwibikoresho byo kurangiza, ariko mubisanzwe ni "wongeyeho" kuri nkuru nyamukuru. Nuburyo ububiko runaka ari "mugihe gusa". Ubu bubiko bugufasha gukiza gushyushya, nyuma bigira ingaruka nziza ku ngengo yimari.
Urugero rwo kubara umubyimba
Tuzasesengura kurugero. Tugiye kubaka urukuta rw'amatafari - mu matafari igice, tuzashyushya ubwoya bwa minerval. Ku meza, kurwanya ubushyuhe bw'inkuta z'uko karere bigomba kuba byibura 3.5. Kubara kubwiki kibazo byerekanwe hepfo.
- Gutangira, tubara kurwanya ubushyuhe bwurukuta rw'amatafari. Amatafari igice ni cm 38 cyangwa metero 0,38, kugenzura ubushyuhe bwamatafari 0.56. Turabitekereza dukurikije formulaire yavuzwe haruguru: 0.38 / 0.56 = 0.68. Kurwanya ikirere bifite urukuta rwamatafari 1.5.
- Agaciro karimo gukumira ubushyuhe rusange mukarere: 3,5-0.68 = 2.82. Ubu bunini bugomba kuba "ubwoko bwa" bworore "bufite ubushyuhe no kurangiza ibikoresho.
Inzego zose zifunze zigomba kubara
- Turasuzuma umubyimba wubwoya bwa minisiteri. Ubushyuhe bwayo butwara neza ni 0.045. Ubunini bwa layer buzaba: 2.82 * 0.045 = 0.1269 m cyangwa 12.7. Ni ukuvuga kwemeza urwego rusabwa rwo kwishyuza rugomba kuba byibuze cm 13.
Niba ingengo yimari ari mike, ubwoya bufite imyuka bushobora gufatwa cm 10, nibikoresho byabuze. N'ubundi kandi, bazaturuka imbere no hanze. Ariko, niba ushaka ko konti yo gushyushya kuba mibiri, nibyiza kurangiza "wongeyeho" kumutekano. Ubu ni bwo bubiko bwawe mugihe cyo hasi, kubera ko ibipimo byo kurwanya ubushyuhe bwo gushyiraho inzego zifatwa ku bushyuhe bwinshi, kandi imbeho ikonje bidasanzwe. Kubwibyo, imikorere yubushyuhe bwibikoresho byubaka ikoreshwa mugushiramo ntabwo byitabirwa.