Excavation shoring yuav tsum tuav cov av thiab dej hauv av rov qab thaum ua haujlwm hauv lub qhov dej kom zoo. Ntawm cov txheej txheem muaj, U- hom steel ntawv pawg, feem ntau hu ua Larssen pawg, yog ib qho ntawm cov kev daws teeb meem thoob ntiaj teb. Lawv interlocking pob qij txha tso cai rau ib tug kab ntawm ib tug pawg los ua ib tug nruam phab ntsa, combining lub ntiaj teb tuav nrog rau hauv av txiav - tawm nyob rau hauv ib tug, recoverable system.
Dab tsi yog U-Hom Steel Sheet Piles?
AU-hom steel ntawv pawg yog ib ntu steel ntev nrog U-zoo li tus ntoo khaub lig-section thiab interlocking clutches tsim raws li qhov profile. Thaum cov pawg tau tsav los ntawm ib sab, cov clutches koom ua ib phab ntsa txuas ntxiv. Vim hais tias cov interlocks nyob ze rau qhov nruab nrab axis ntawm U profile, seem coj zoo nyob rau hauv dabtsi yog khoov thaum lub phab ntsa nws tus kheej tseem yooj yim mus dlhos lub sij hawm tsav tsheb.
Ntsiab nta
Interlocking phab ntsa:Cov pawg uas nyob ib sab ob peb los ntawm pob-thiab- qhov (socket) lossis Larssen- hom clutches, ua ib qho kev cuam tshuam tsis tu ncua yam tsis muaj cov khoom sib txuas.
Dej txiav- tawm:nruj interlocks txwv seepage, thiab sealants tuaj yeem siv rau cov rooj dej hauv av siab.
Reusability:Cov seem symmetrical tuaj yeem muab rho tawm thiab rov ua dua -tsav hauv kev ua haujlwm ib ntus, raug tshuaj xyuas.
Curved thiab cellular layouts:lub interlock articulation tso cai ncig, polygonal los yog nkhaus cofferdam configurations.
Kub-Rolled vs Cold-Formed U-Piles: Manufacturing Comparison
U- hom ntawv pawg yog tsim los ntawm ob txoj hauv kev sib txawv, thiab qhov kev xaiv cuam tshuam cuam tshuam kev sib cuam tshuam, ntu loj thiab cov ntawv thov raug.
| Cov khoom sib piv | Kub-Rolled U-Pile | Txias-Formed U-Pile |
|---|---|---|
| Cov txheej txheem tsim khoom | Billets rhuab saum qhov ntsuas kub ntawm recrystallisation thiab dov rau hauv profile nrog ib qho kev cuam tshuam | Txias kub-dov sawb tsim los ntawm yob- ua mills ntawm qhov kub thiab txias |
| Kev tswj hwm tus qauv | EN 10248 (Tebchaws Europe), JIS A 5523 (Nyiv) | TS EN 10249 (Tebchaws Europe), JIS A 5528 (Nyiv) |
| Interlock cwj pwm | Tight, precision{0}}ua clutches; tsis tshua muaj permeability, zoo ua haujlwm rau kev tsav tsheb nyuaj | Looser nuv-thiab- tuav clutches; yooj yim tuav tab sis muaj peev xwm seepage ntau dua |
| Phab ntsa thickness | Heaver seem thiab thicker interlocks tau | Uniform thickness; hloov pauv tsis yog - qauv dav thiab qhov tob |
| Tej kev siv | Cov qauv ruaj khov, sib sib zog nqus cofferdams, marine ua haujlwm, tsav tsheb hauv av nyuaj | Tus nqi - cov haujlwm ua haujlwm ib ntus, kev tiv thaiv ntug dej, kev khawb tob, cov av mos |
Cov txheej txheem xaiv yuav tsum yog nyob ntawm tus tsim lub neej, qhov yuav tsum tau muaj dej tsis sib haum, kev tsav tsheb thiab kev siv nyiaj ntawm txhua qhov haujlwm.
Shoring Systems Siv U-Tom Sheet Piles
Cantilevered Piling
Cov pawg tau tsav yam tsis muaj struts lossis anchors thiab tiv thaiv lub ntiaj teb siab dhau los ntawm kev ua haujlwm tsis zoo ntawm qhov tob tob. Cov txheej txheem no haum rau kev khawb qhov tob hauv cov av uas tsis muaj kev tiv thaiv deflection tsis tseem ceeb.
Anchored Piling (Tieback los yog av Anchors)
Ib lub waling beam thiab inclined anchors hloov ib feem ntawm lub lateral siab mus rau cov av ruaj khov tom qab phab ntsa. Anchored systems yog haum rau nruab nrab - qhov tob excavations qhov chaw nyob tom qab phab ntsa yog muaj rau thauj tog rau nkoj installation.
Internally Braced Piling (Strutting)
Kab rov tav walers thiab struts, feem ntau steel kav lossis H- kab teeb, brace phab ntsa hauv qhov khawb. Ib leeg- lossis ntau-tier strutting muab qhov nruj tshaj plaws deflection tswj thiab yog cov kev daws teeb meem rau kev khawb tob hauv cov nroog ntom ntom uas txav ntawm cov av uas nyob ib sab yuav tsum tau txo qis.
Kev xaiv ntawm shoring system yog kev txiav txim siab tsim geotechnical raws li kev khawb qhov tob, av thaj chaw, dej hauv av, cov qauv uas nyob ib sab thiab tso cai txav.
Vim li cas U-Tom Piles Ua Haujlwm rau Excavation Shoring
Kev ua tau zoo Bending Performance
Qhov sib sib zog nqus corrugation ntawm U profile muab cov phab ntsa ntawm qhov siab ntawm qhov nruab nrab ntawm ib kab 'meter', tso cai rau nws tiv thaiv lub ntiaj teb tseem ceeb ntawm lub ntiaj teb thiab dej siab thaum txwv deflection.
Kev txiav dej zoo- tawm
Nrog rau kev sib cuam tshuam ntawm qhov nruab nrab ntawm qhov nruab nrab thiab qhov kev xaiv ntawm ua ntej - siv hydrophilic los yog bituminous sealants, U- cov phab ntsa muab cov dej hauv av tuaj yeem tswj tau hauv kev khawb nrog cov rooj dej siab.
Flexibility hauv Phab Ntsa Geometry
Lub articulation ntawm interlocks tso cai nkhaus thiab cellular cofferdam layouts, yog li ntawd cov phab ntsa yuav ua raws li qhov chaw ciam teb, dej alignments los yog ncig excavation npaj.
Tus nqi -Kev ua tau zoo thiab rov siv dua
U-Piles feem ntau yog kev lag luam ib kab 'meter', thiab hauv kev ua haujlwm ib ntus lawv tuaj yeem muab rho tawm thiab rov siv dua nyob rau ntau qhov haujlwm thaum ua haujlwm thiab tshuaj xyuas kom raug.
Steel Qib thiab Standards
| Txuj | Hom Qib Cov Qauv | Scope |
|---|---|---|
| TS EN 10248-1 | S240GP, S270GP, S355GP, S390GP, S430GP | Kub- dov daim ntawv |
| TS EN 10249-1 | S235JR, S275JR, S355JR (thiab lwm qib) | Txias- ua daim ntawv pawg |
| TIAB SA 5523 | SIB 295, SY390 | Kub- dov steel ntawv pawg |
| TIAB SA 5528 | SYW 295, SYW 390 | Txias-tsim steel ntawv pawg |
| ASTM A690 Cov Lus Qhia Tshwj Xeeb | Qib 50 (50 ksi yam tsawg kawg nkaus) | Siab -lub zog qis- alloy steel rau marine sheet piling |
| GB/T 1591 | Q355B thiab cov qib muaj feem xyuam | Tsawg- alloy siab - lub zog steel qauv |
Cov ntaub ntawv pov thawj kev xeem uas tau muab tso rau hauv raws li EN 10204 (hom 3.1) yuav tsum nrog rau txhua qhov khoom xa tuaj, thiab qhov ntev ntev yuav tsum ua raws li cov qauv khoom siv. Rau kev ruaj ntseg lossis cov qauv hauv hiav txwv, kev tiv thaiv corrosion xws li thee tar epoxy, iav flake epoxy lossis kub -dip galvanizing yuav tsum tau teev nyob rau hauv txoj kab nrog ISO 12944.
Hom Kev Siv U-Hom Steel Sheet Piles
Lub nroog tob excavations:hauv qab daus, chaw nres tsheb hauv av thiab subway nkag qhov kev sib haum xeeb ntawm cov tsev nyob ib sab yuav tsum tau tswj.
Cofferdams:dej ib ntus lossis mus tas li- khaws cov cell rau cov piers, dams thiab cov hauv paus dej hiav txwv.
Pipeline thiab siv trenching:ceev ceev ib ntus shoring los tiv thaiv trench vau thaum lub sij hawm installation thiab txij nkawm.
Choj abutments thiab tis phab ntsa:tuav cov phab ntsa ntawm txoj kev embankments thiab kev hloov chaw.
Kev tiv thaiv dej nyab thiab ntug hiav txwv:dej nyab phab ntsa, dikes, levees thiab Riverbank stabilization.
Ports thiab waterfront structures:quay phab ntsa, seawalls thiab bulkheads hauv siab - dej.
Rau qhov dav ntawm cov ntawv steel pawg thiab cov phab ntsa sib xyaw ua ke, saib cov khoom siv hlau lwm yam.
Cov lus nug nquag
Koj puas tuaj yeem- hom ntawv pawg tuaj yeem rov qab siv tau?Yog lawm. Kub- dov U- pawg tshwj xeeb yog nquag muab rho tawm thiab rov- tau tsav hauv kev ua haujlwm ib ntus. Rov qab siv tau tso cai tom qab kev tshuaj xyuas qhov muag thiab qhov pom tseeb tias qhov kev cuam tshuam thiab qhov profile tsis zoo.
Yuav ua li cas watertight yog interlocks?Kub- dov Larssen- hom kev sib cuam tshuam yog qhov tseeb- tsim kom haum haum thiab muab kev ruaj ntseg seepage tswj. Rau siab hydraulic siab, hydrophilic los yog bituminous sealants yog siv rau interlocks los txhim kho watertightness ntxiv.
Qhov twg yog qhov zoo dua rau cov qauv marine mus tas li: kub- dov lossis txias- tsim?Kub- dov U- pawg yog ib txwm nyiam rau kev ruaj khov lossis hnyav- cov haujlwm ua haujlwm xws li cov cofferdams sib sib zog nqus, cov phab ntsa quay thiab nyuaj- hauv av tsav tsheb, vim lawv cov kev sib tshuam nruj, ntu hnyav dua thiab ua rau muaj kev puas tsuaj ntau dua rau kev tsav tsheb.
Ntev npaum li cas tuaj yeem muab tau?Cov pawg tau tsim kom ntev li ntev tau, nrog rau 6 m txog 15 m ua haujlwm ntev. Cov pawg ntev tuaj yeem muab tau raws li qhov hnyav ntawm ntu thiab thauj khoom thauj khoom; containerized shipment suits ntev uas haum cov thawv ntim khoom, thaum lub hnab ntim ntev mus los ntawm kev tawg.
Koj puas tuaj yeem- pawg tuaj yeem ua ib puag ncig lossis nkhaus cofferdams?Yog lawm. Lub articulation ntawm interlock tso cai rau angular sib txawv thaum tsav tsheb, cia ncig, polygonal thiab nkhaus phab ntsa configurations ua raws li qhov yuav tsum tau geometry.
Kev tiv thaiv corrosion dab tsi yog muaj rau cov chaw hauv dej hiav txwv?Rau kev ruaj khov lossis dej hiav txwv raug, cov tshuab xws li thee tar epoxy, iav flake epoxy lossis kub -dip galvanizing muaj, tau teev rau ISO 12944 rau qeb corrosivity ntawm lub xaib.