Ukwethulwa kwenqwaba yeshidi lensimbi ye-Larsen

YiniInqwaba yeshidi lensimbi ye-Larsen?
Ngo-1902, unjiniyela waseJalimane ogama lakhe linguLarsen waqala ukukhiqiza uhlobo lwenqwaba yensimbi ene-cross-section efana no-U kanye nezingidi emikhawulweni yomibili, eyasetshenziswa ngempumelelo kwezobunjiniyela, futhi yabizwa ngokuthi "Inqwaba Yeshidi Larsen" emva kwegama lakhe. Namuhla, izinqwaba zeshidi lensimbi ye-Larsen seziqashelwe emhlabeni wonke futhi zisetshenziswa kabanzi ekusekeleni umgodi wesisekelo, ama-cofferdams wobunjiniyela, ukuvikela izikhukhula namanye amaphrojekthi.

I-Larsen steel sheet pile iyindinganiso evamile yomhlaba wonke, uhlobo olufanayo lwenqwaba ye-Lassen steel sheet ekhiqizwa emazweni ahlukene ingaxutshwa kuphrojekthi efanayo. Izinga lomkhiqizo wenqwaba yeshidi lensimbi ye-Larsen lenze izinhlinzeko nezidingo ezicacile ngosayizi wesigaba esiphambanayo, isitayela sokukhiya, ukwakheka kwamakhemikhali, izakhiwo zemishini kanye namazinga okuhlolwa kwezinto, futhi imikhiqizo kufanele ihlolwe ngokuqinile efektri. Ngakho-ke, inqwaba yeshidi lensimbi ye-Larsen inokuqinisekiswa kwekhwalithi enhle kanye nezakhiwo zemishini, futhi ingasetshenziswa ngokuphindaphindiwe njengempahla yenzuzo, enezinzuzo ezingenakuphikwa ekuqinisekiseni ikhwalithi yokwakha kanye nokunciphisa izindleko zephrojekthi.

 

Izinhlobo ze-Larsen steel sheet piles

Ngokusho kobubanzi besigaba esihlukene, ubude nobukhulu, inqwaba yeshidi lensimbi ye-Larsen ingahlukaniswa ngamamodeli ahlukahlukene, futhi ububanzi obuphumelelayo benqwaba eyodwa yezinqwaba zeshidi lensimbi evame ukusetshenziswa ikakhulukazi inezincazelo ezintathu, okungukuthi 400mm, 500mm no-600mm.
Ubude be-Tensile Steel Sheet Pile bungenziwa ngendlela oyifisayo futhi bukhiqizwe ngokwezidingo zephrojekthi, noma bungasikwa babe yinqwaba emifushane noma bushiselwe ube yinqwaba ezinde ngemva kokuthenga. Uma kungenakwenzeka ukuthutha izinqwaba zamashidi ensimbi amade endaweni yokwakha ngenxa yokulinganiselwa kwezimoto nemigwaqo, izinqwaba zohlobo olufanayo zingathuthwa endaweni yokwakha bese zishiselwa futhi zinwetshwe.
Larsen steel sheet inqwaba inqwaba impahla
Ngokwamandla esivuno sento esetshenziswayo, amamaki ezinto eziqumbi zeshidi lensimbi ye-Larsen ahambisana nezinga likazwelonke yi-Q295P, Q355P, Q390P, Q420P, Q460P, njll., kanti lezo ezihambisana nezinga laseJapanI-SY295, I-SY390, njll. Amabanga ahlukene wezinto zokwakha, ngaphezu kwezakhi zazo zamakhemikhali, nazo zingashiselwa futhi zinwetshwe. Amamaki ahlukene wezinto ezibonakalayo ngaphezu kokwakheka kwamakhemikhali ahlukene, imingcele yawo yemishini nayo ihlukile.

Ngokuvamile esetshenziswa Larsen steel sheet inqwaba inqwaba amamaki kanye nemingcele mechanical

Okujwayelekile	Okubalulekile	Ukucindezelwa kwesivuno N/mm²	Amandla okuqina N/mm²	Ukwelula %	Umsebenzi wokumunca umthelela J(0℃)
I-JIS A 5523 (JIS A 5528)	I-SY295	≥295	≥490	≥17	≥43
	I-SY390	≥390	≥540	≥15	≥43
I-GB/T 20933	Q295P	≥295	≥390	≥23	—-
	Q390P	≥390	≥490	≥20	—-