ASTM A252 Piling Steel Yeeb Nkab

ASTM A252 yog tus qauv tsim los ntawm Asmeskas haiv neeg rau kev sim thiab cov ntaub ntawv (ASTM) tshwj xeeb rau kev tsim khoom thiab kev siv cov yeeb nkab. Hom kev siv hlau no tsuas yog siv nyob rau hauv cov haujlwm sib sib zog nqus (xws li cov pa las foundation), muab kev txhawb nqa ntsug lossis kab rov tav lossis cov choj, thiab docks.

• Cov siv tseem ceeb: ASTM A252 Cov kav dej pawg pawg yog feem ntau siv rau kev txhawb nqa cov roj (bowle ntsug loads) lossis tuav phab ntsa tom qab lub ntiaj teb siab)

1. Lub Tsev Ua Tsev (High-Rauv Vaj Tse, Kev Lag Luam Nroj Tsuag)
2. Choj Piers thiab abutments
3. Offshore platforms thiab docks
4. Anti--Aginallid Project
5. Cov qauv kev txhawb nqa ib ntus (xws li lub hauv paus dos)

• Ib puag ncig ua haujlwm:Nws tuaj yeem raug tsav ncaj qha rau hauv av, pob zeb lossis hauv qab dej, thiab yuav tsum muaj kev ua kom zoo compressive, khoov tsis kam thiab corrosion tsis kam.

ASTM A252 cais cov kav dej pawg rau hauv peb qib, thiab lub zog thiab kev thov cov qib sib txawv:

Nco tseg: Cov khoom siv yog feem ntau cov hlau, thiab cov tshuaj muaj kuab lom yog tsis muaj tsawg tsawg, tab sis nws yuav tsum ua kom tau raws li cov khoom ntiag tug.

• Txoj kev sib raug:

1. Welded hlau kav hlau: feem ntau siv yog kev tiv thaiv vuam (ERW) lossis submerged arc vuam (pom), uas muaj cov nqi qis.
2. Seamless steel kav (tsawg dua ib txwm): Siv rau tshwj xeeb cov kev ua kom muaj zog siab, tab sis lawv kim dua.

• Qhov loj me:

1. Txheej ntawm txoj taub: feem ntau 6 ntiv (168.3mm) rau 36 nti (914mm).
2. Phab ntsa tuab: ntau yam, feem ntau los ntawm 0. 25 ntiv tes (6.35mm) rau 1.5 nti (38.1mm).
3. Ntev: Tus qauv ntev yog 20 feet (6.1m) lossis 40 ko taw (12.2m), thiab customization yog muaj.

• Kev Ntsuam Xyuas Txhua Yam:

1. Tensile Kuaj: Tshawb xyuas lub zog zog, tensile lub zog thiab elongation.
2. Dabtsi yog khoov xeem: kom paub tias cov yeeb nkab steel tsis tawg thaum khoov txias (cov hnoos qeev 180 degree tsis muaj qhov tsis xws luag).
3. Flattening kev sim (yeem): Ntsuas qhov ductility ntawm chav weld.

• otNws cov kev kuaj:

1. HYDRAULIC TES: Nco ntsoov tias tsis muaj xau nyob rau hauv cov yeeb nkab steel (lub siab yog xam los ntawm cov mis thiab feem ntau {} psi).
2. Tsis yog-ua kev sim ua kev sim siab (NDT): xws li ultrasonic sim (U) lossis tshawb nrhiav kev soj ntsuam tam sim no (xaiv raws li kev cai tshuaj xyuas kev lag luam engineering).

• Zoo li:Cov dej sab hauv thiab sab nraud ntawm cov yeeb nkab steel yuav tsum pub dawb los ntawm cov kab nrib pleb, nti thiab lwm yam tsis raug, thiab oxide oxide yog tso cai.

• Kev ntsuas tiv thaiv corrosion:

• Cov txheej: Epoxy cob, asphalt lossis galvanizing tuaj yeem siv (tsis yog cov qauv, yuav tsum cais cov kev cai).

• Cathodic Kev Tiv Thaiv: Nws yog siv hauv kev ua kom haum marine lossis muaj kev sib koom tes zoo thiab yuav tsum muaj kev sib koom tes nrog tsim qauv engineering.

• API 5L: API 5L tsom rau cov roj thiab roj kev sib ntaus sib tua, thaum high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-high-hights ntau dua rau cov tshuab muaj zog thiab cov txheej txheem kev pab txhawb nqa.

• EN 10219: Cov qauv txheej txheem hlau cov qauv hauv European cov qauv muaj cov txheej txheem tseev kom muaj rau vuam cov tswv cuab thiab thev taus.

• Xaiv:

Txiav txim siab cov kev yuav tsum tau ua raws li kev tshaj tawm geological.

• Xav txog qhov chaw corrosive:(Xaiv Phab Ntsa Thickness rov ua dua tshiab lossis tiv thaiv kev tiv thaiv corrosion ntxiv).

• Siv cov ntsiab lus tseem ceeb:

Qhov kawg ntawm pawg tuaj yeem welded nrog kev txhawb nqa cov nplhaib lossis cov pob txha feem ntau yuav tau teeb tsa kev nkag mus.

Thaum tsav tsheb, lub zog sib tsoo yuav tsum tau tswj kom tsis txhob muaj kev sib tw ntawm cov kav hlau.

• Thaj chaw ntau lawm:

Tuam Tshoj, Tebchaws Asmeskas, Nyiv thiab Europe yog cov chaw tsim khoom loj.

• Nqe yam:

Cuam tshuam los ntawm cov nqi hlau, phab ntsa thickness, tiv thaiv kev kho mob corrosion, thiab nws feem ntau yog tus nqi los ntawm lub tuj.

Daim ntawv pov thawj yuav tsum muaj:

Cov ntaub ntawv pov thawj khoom (MTC) yuav tsum muaj. Qee cov khoom xav tau kev soj ntsuam thib peb (xws li SGS, BV).

ASTM A252 Pawg Yeeb Nkab yog cov khoom tseem ceeb hauv kev sib sib zog nqus lub tshuab tsim khoom lag luam. Nws lub zog siab thiab yooj yim ntawm kev tsim kho ua kom nws txoj kev xaiv zoo tshaj plaws rau pej xeem engineering. Thaum xaiv hom, lub nra, ib puag ncig thiab tus nqi yuav tsum muaj kev txiav txim siab, thiab cov cai xeem hauv tus qauv yuav tsum ua kom muaj kev nyab xeeb ntawm cov qauv.