Chiyambi cha mulu wa pepala la Larsen

Ndi chiyaniLarsen zitsulo pepala mulu?
Mu 1902, injiniya wina wa ku Germany dzina lake Larsen poyamba anapanga mulu wazitsulo zachitsulo zokhala ndi gawo lozungulira lopangidwa ndi U ndi maloko kumapeto onse awiri, omwe adagwiritsidwa ntchito bwino mu uinjiniya, ndipo amatchedwa "Larsen Mapepala Mulu"Pambuyo pa dzina lake. Masiku ano, milu yachitsulo ya Larsen yadziwika padziko lonse lapansi ndipo imagwiritsidwa ntchito kwambiri pothandizira dzenje la maziko, ma cofferdams a engineering, kuteteza kusefukira kwa madzi ndi ntchito zina.

Larsen zitsulo pepala mulu ndi muyezo wamba padziko lonse, mtundu womwewo wa Lassen zitsulo pepala mulu opangidwa m'mayiko osiyanasiyana akhoza kusakaniza mu ntchito yomweyo. The mankhwala muyezo wa Larsen zitsulo pepala mulu wapanga makonzedwe omveka bwino ndi zofunika pa mtanda gawo kukula, kutseka kalembedwe, mankhwala zikuchokera, katundu makina ndi mfundo kuyendera zinthu, ndipo mankhwala ayenera mosamalitsa anayendera fakitale. Chifukwa chake, mulu wazitsulo wa Larsen uli ndi chitsimikizo chabwino komanso makina, ndipo angagwiritsidwe ntchito mobwerezabwereza ngati zinthu zobweza, zomwe zili ndi zabwino zomwe sizingachitike pakuwonetsetsa kuti zomangamanga ndi zotsika mtengo.

 

Mitundu ya milu yachitsulo ya Larsen

Malinga ndi mbali zosiyanasiyana m'lifupi, kutalika ndi makulidwe, Larsen zitsulo milu pepala akhoza kugawidwa mu zitsanzo zosiyanasiyana, ndi m'lifupi ogwira mulu umodzi wa milu ambiri zitsulo pepala makamaka ali specifications atatu, ndicho 400mm, 500mm ndi 600mm.
Utali wa Tensile Steel Sheet Pile ukhoza kusinthidwa ndikupangidwa malinga ndi zosowa za polojekiti, kapena ukhoza kudulidwa kukhala milu yaifupi kapena kuwotcherera mumilu yayitali mutagula. Ngati sizingatheke kunyamula milu yazitsulo zazitali kupita kumalo omanga chifukwa cha kuchepa kwa magalimoto ndi misewu, milu yamtundu womwewo imatha kutengedwa kupita kumalo omangako kenako kuwotcherera ndikutalikitsa.
Larsen zitsulo pepala mulu zakuthupi
Malinga ndi mphamvu zokolola za zinthuzo, milu yachitsulo ya Larsen yomwe ikugwirizana ndi dziko lonse ndi Q295P, Q355P, Q390P, Q420P, Q460P, ndi zina zotero, ndipo zomwe zikugwirizana ndi chikhalidwe cha Japan ndiSY295, SY390, etc. Osiyana magiredi a zipangizo, kuwonjezera awo mankhwala nyimbo, angathenso welded ndi yaitali. Mitundu yosiyanasiyana yazinthu kuwonjezera pamitundu yosiyanasiyana yamankhwala, magawo ake amakina amasiyananso.

Ambiri ntchito Larsen zitsulo pepala mulu zinthu makalasi ndi makina magawo

Standard	Zakuthupi	Kupanikizika kwa zokolola N/mm²	Mphamvu yamphamvu N/mm²	Elongation %	Impact mayamwidwe ntchito J(0℃)
Mtengo wa JIS A5523 (JIS A 5528)	SY295	≥295	≥490	≥17	≥43
	SY390	≥390	≥540	≥15	≥43
Mtengo wa GB/T 20933	Q295P	≥295	≥390	≥23	—-
	Q390P	≥390	≥490	≥20	—-