Txheej txheem cej luam ntawm Anchor Hollow Steel Bars
Thauj tog rau nkoj hollow steel tuav yog tsim nyob rau hauv ntu nrog tus qauv ntev ntawm 2.0, 3.0 lossis 4.0 m. Tus txheej txheem txheej kab ntawm cov hollow steel tuav yog li ntawm 30.0 hli mus rau 127.0 hli. Yog tias tsim nyog, hollow steel tuav txuas ntxiv nrog cov txiv ntseej txuas. Kev sib txawv ntawm cov khoom siv txiab txiab yog siv nyob ntawm seb hom av lossis pob zeb loj. Lub hollow steel bar yog zoo dua li ib qho khoom siv nrog tib qhov chaw hla ntu vim nws tus cwj pwm zoo dua qub ntawm buckling, ncig thiab khoov nruj. Qhov tshwm sim yog ntau dua buckling thiab flexural stability rau tib tus nqi ntawm cov hlau.
Specification ntawm Self Drilling Anchor Rods
| Specification | R25 N | R32L | R32 N | R32/18.5 | R32S | R32 SS | R38 N | R38/19 | r51l ua | R51 N | T76 N | T76 S |
| Sab nraud txoj kab uas hla (mm) | 25 | 32 | 32 | 32 | 32 | 32 | 38 | 38 | 51 | 51 | 76 | 76 |
| Internal txoj kab uas hla, nruab nrab (mm) | 14 | 22 | 21 | 18.5 Nws | 17 | 15.5 ib | 21 | 19 | 36 | 33 | 52 | 45 |
| Sab nraud txoj kab uas hla, siv tau (mm) | 22.5 ib | 29.1 ib | 29.1 ib | 29.1 ib | 29.1 ib | 29.1 ib | 35.7 ib | 35.7 ib | 47.8 ib | 47.8 ib | 71 | 71 |
| Qhov kawg load peev (kN) | 200 | 260 | 280 | 280 | 360 | 405 | 500 | 500 | 550 | 800 | 1600 | Xyoo 1900 |
| Load peev xwm (kN) | 150 | 200 | 230 | 230 | 280 | 350 | 400 | 400 | 450 | 630 | 1200 | 1500 |
| Tensile zog, Rm (N / mm2) | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 |
| Kev tawm dag zog, Rp0, 2 (N / mm2) | 650 | 650 | 650 | 650 | 650 | 650 | 650 | 650 | 650 | 650 | 650 | 650 |
| Qhov hnyav (kg / m) | 2.3 | 2.8 | 2.9 | 3.4 | 3.4 | 3.6 | 4.8 | 5.5 | 6.0 | 7.6 | 16.5 ib | 19.0 Nws |
| Xov hom (sab laug tes) | ISO 10208 | ISO 1720 Kev Tswj Xyuas | MAI T76 standard | |||||||||
| Qib hlau | TS EN 10083-1 | |||||||||||
Daim ntawv thov ntawm tus kheej Drilling Anchor Rods
Nyob rau hauv xyoo tas los no, nrog rau kev xav tau ntau ntxiv rau kev txhawb nqa geotechnical, cov khoom siv drilling tau hloov kho tas li thiab tsim. Nyob rau tib lub sijhawm, kev ua haujlwm thiab nqi xauj tsev tau nce ntxiv, thiab cov kev cai rau lub sijhawm tsim kho tau nce siab. Tsis tas li ntawd, kev siv tus kheej drilling hollow thauj tog rau nkoj rods nyob rau hauv geological tej yam kev mob uas nquag mus vau muaj zoo heev anchoring teebmeem. Cov laj thawj no tau ua rau muaj kev nthuav dav ntxiv ntawm tus kheej drilling hollow thauj tog rau nkoj rods. Self drilling hollow thauj tog rau nkoj rods yog tsuas yog siv nyob rau hauv cov nram no scenarios:
1. Siv raws li cov pas nrig thauj tog rau nkoj prestressed: siv rau hauv cov xwm txheej xws li qhov chaw siab tshaj, kev khawb hauv av, thiab tiv thaiv ntab los hloov cov thauj tog rau nkoj. Self drilling hollow thauj tog rau nkoj rods yog drilled mus rau qhov yuav tsum tau qhov tob, thiab ces kawg grouting yog nqa tawm. Tom qab solidification, nro yog siv;
2. Siv raws li micropiles: tus kheej drilling hollow thauj tog rau nkoj rods tuaj yeem drilled thiab grouted downwards los tsim micropiles, feem ntau siv rau hauv cua fais fab nroj tsuag ntauwd foundations, kis ntauwd foundations, lub hauv paus tsev, khaws cov phab ntsa pawg foundations, choj pawg foundations, thiab lwm yam;
3. Siv rau cov ntsia hlau hauv av: feem ntau siv rau kev txhawb nqa txoj kab nqes, hloov cov pa steel bar thauj tog rau nkoj rods, thiab tseem tuaj yeem siv rau kev sib sib zog nqus lub hauv paus qhov siab txoj kab nqes;
4. Siv rau cov ntsia hlau pob zeb: Hauv qee qhov pob zeb slopes lossis tunnels nrog cov huab cua loj heev lossis kev sib koom ua ke, nws tus kheej drilling hollow thauj tog rau nkoj rods tuaj yeem siv rau drilling thiab grouting rau cov pob zeb pob zeb ua ke los txhim kho lawv txoj kev ruaj ntseg. Piv txwv li, pob zeb slopes ntawm txoj kev loj thiab txoj kev tsheb ciav hlau uas muaj kev sib tsoo tuaj yeem txhim kho, thiab cov yeeb nkab ua ke tuaj yeem hloov tau rau kev txhawb nqa ntawm qhov qhib qhov qhib;
5. Kev txhawb nqa yooj yim lossis kev tswj xyuas kev puas tsuaj. Raws li lub sij hawm txhawb nqa ntawm thawj qhov kev txhawb nqa geotechnical nce, cov qauv kev txhawb nqa no tuaj yeem ntsib qee qhov teeb meem uas yuav tsum tau muaj zog los yog kev kho mob, xws li deformation ntawm txoj kab nqes qub, kev sib haum xeeb ntawm lub hauv paus qub, thiab kev txhawb nqa ntawm txoj kev. Nws tus kheej drilling hollow thauj tog rau nkoj rods tuaj yeem siv los laum rau hauv qhov qub txoj kab nqes, lub hauv paus, lossis txoj kev hauv av, thiab lwm yam, rau grouting thiab consolidation ntawm cov kab nrib pleb, tiv thaiv qhov tshwm sim ntawm geological kev puas tsuaj.
