Okwu Mmalite nke Larsen ígwè mpempe akwụkwọ

Gịnị bụMpempe akwụkwọ mpempe akwụkwọ Larsen?
N'afọ 1902, otu onye injinia German aha ya bụ Larsen bu ụzọ mepụta ụdị mpempe akwụkwọ nchara nke nwere akụkụ cross-U-shaped na mkpọchi na nsọtụ abụọ ahụ, nke etinyere nke ọma na injinia, wee kpọọ ya "Mpempe akwụkwọ LarsenN'oge a, Larsen steel mpempe akwụkwọ a na-amata n'ụwa niile ma jiri ya mee ihe na nkwado olulu ntọala, cofferdams injinia, nchebe ide mmiri na ọrụ ndị ọzọ.

Mpempe akwụkwọ mpempe akwụkwọ Larsen bụ ọkọlọtọ mba ụwa, otu ụdị mpempe akwụkwọ mpempe akwụkwọ Lassen a na-emepụta na mba dị iche iche nwere ike ịgwakọta n'otu ọrụ ahụ. Ọkọlọtọ ngwaahịa Larsen nchara mpempe akwụkwọ emeela ndokwa doro anya na ihe achọrọ na nha nke akụkụ obe, ụdị mkpọchi, ihe mejupụtara kemịkalụ, akụrụngwa akụrụngwa na ụkpụrụ nyocha nke ihe ahụ, a ga-enyocharịrị ngwaahịa ndị ahụ na ụlọ ọrụ mmepụta ihe. Ya mere, Larsen ígwè mpempe akwụkwọ mpempe akwụkwọ nwere ezigbo mmesi obi ike na ihe eji arụ ọrụ, a pụkwara iji ya mee ihe ugboro ugboro dị ka ihe ntụgharị, nke nwere uru na-enweghị atụ n'ịhụ na ịdị mma ụlọ na ibelata ụgwọ ọrụ.

 

Ụdị mpempe akwụkwọ nchara Larsen

Dị ka akụkụ dị iche iche obosara, elu na ọkpụrụkpụ, Larsen ígwè mpempe akwụkwọ ikpo nwere ike kewaa n'ime dị iche iche ụdị, na irè obosara nke a otu ikpo nke ọtụtụ-eji ígwè mpempe akwụkwọ ikpo tumadi nwere atọ nkọwa, ya bụ 400mm, 500mm na 600mm.
Enwere ike ịhazi ogologo ma mepụta ogologo nke Tensile Steel Sheet Pile dị ka mkpa ọrụ ahụ si dị, ma ọ bụ nwee ike bee ya n'ime obere ikpo ma ọ bụ welded n'ime nnukwu ikpo ogologo mgbe ịzụrụ. Mgbe ọ na-agaghị ekwe omume ịkwaga ogologo mpempe akwụkwọ nchara n'ebe a na-ewu ihe n'ihi njedebe nke ụgbọ ala na okporo ụzọ, a pụrụ ibuga ngwongwo nke otu ụdị ahụ gaa n'ebe a na-ewu ihe na mgbe ahụ welded na ogologo.
Larsen ígwè mpempe akwụkwọ ikpo ihe onwunwe
Dị ka ike mkpụrụ nke ihe ahụ si dị, akara akara nke Larsen ígwè mpempe akwụkwọ na-agbaso ụkpụrụ mba bụ Q295P, Q355P, Q390P, Q420P, Q460P, wdg, na ndị na-agbaso ụkpụrụ Japan bụ.SY295, SY390, wdg Ụdị ihe dị iche iche, na mgbakwunye na ihe mejupụtara kemịkalụ ha, nwekwara ike welded na ogologo. Dị iche iche akara ule nke ihe na mgbakwunye na dị iche iche chemical mejupụtara, ya n'ibu parameters dịkwa iche iche.

Larsen steel mpempe akwụkwọ a na-ejikarị akara ule na n'ibu

Ọkọlọtọ	Ihe onwunwe	Mbelata nrụgide N/mm²	Ike nkwụsị N/mm²	Ogologo oge %	Ọrụ absorption mmetụta J (0℃)
JIS A5523 (JIS A 5528)	SY295	≥295	≥490	≥17	≥43
	SY390	≥390	≥540	≥15	≥43
GB/T 20933	Q295P	≥295	≥390	≥23	——
	Q390P	≥390	≥490	≥20	——