Dulmar guud oo ku saabsan Bolt-ka Dhagaxa ee Birta Isku-xidhan ee T76
Barkimooyinka is-qoditaanka waa nooc gaar ah oo barkimooyinka usha ah. Barkimooyinka is-qoditaanka waxay ka kooban yihiin bir qodis ah oo allabari ah, bir godan oo dhexroorkeedu yahay gudaha iyo dibadda iyo lawska isku xiran. Jidhka barkimada waxaa laga sameeyay tuubo bir godan oo leh dun wareegsan oo dibadda ah. Tuubada birta ah waxay leedahay qaybta qodista allabaryada dhinaceeda iyo lawska u dhigma oo leh saxan bir ah. Barkimooyinka is-qoditaanka waxaa loo isticmaalaa si ay birta godan (ul) u leedahay qayb qodis allabaryo ah oo u dhiganta oo dusha sare ah halkii ay ka ahaan lahayd qayb qodis caadi ah.
Qeexidda Ulaha Barroosinka Is-qodista
| R25N | R32L | R32N | R32/18.5 | R32S | R32SS | R38N | R38/19 | R51L | R51N | T76N | T76S | |
| Dhexroorka dibadda (mm) | 25 | 32 | 32 | 32 | 32 | 32 | 38 | 38 | 51 | 51 | 76 | 76 |
| Dhexroorka gudaha(mm) | 14 | 22 | 21 | 18.5 | 17 | 15.5 | 21 | 19 | 36 | 33 | 52 | 45 |
| Dhexroorka dibadda, wax ku ool ah (mm) | 22.5 | 29.1 | 29.1 | 29.1 | 29.1 | 29.1 | 35.7 | 35.7 | 47.8 | 47.8 | 71 | 71 |
| Awoodda culeyska ugu dambeysa (kN) | 200 | 260 | 280 | 280 | 360 | 405 | 500 | 500 | 550 | 800 | 1600 | 1900 |
| Awoodda culayska wax soo saarka (kN) | 150 | 200 | 230 | 230 | 280 | 350 | 400 | 400 | 450 | 630 | 1200 | 1500 |
| Xoogga jiidista, Rm(N/mm2) | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 | 800 |
| Xoogga wax soo saarka, Rp0, 2(N/mm2) | 650 | 650 | 650 | 650 | 650 | 650 | 650 | 650 | 650 | 650 | 650 | 650 |
| Miisaanka (kg/m) | 2.3 | 2.8 | 2.9 | 3.4 | 3.4 | 3.6 | 4.8 | 5.5 | 6.0 | 7.6 | 16.5 | 19.0 |
Faa'iidada iyo adeegsiga Ulaha Barroosinka Is-qodista
Shaqada usha barroosinka wareegsan ee godka leh waa grouting, sidaa darteed waxaa sidoo kale loo yaqaan tuubada grouting. Waxaa lagu wareejin karaa qorsheynta guud si loo gaaro cadaadiska koowaad. Marka cadaadis la saaro, slurry-ka gudaha ayaa soo baxa, kaas oo aan saameyn go'an ku yeelan naftiisa, laakiin sidoo kale wuxuu galaa godka barroosinka marka slurry-ku uu buux dhaafo, isagoo door ka ciyaaraya xoojinta dhagaxa ku xeeran. Waxay leedahay faa'iidooyinkeeda u gaarka ah codsiga iyo qorsheynta, sidaa darteed waxay muujin kartaa faa'iidooyinkeeda u gaarka ah codsiga:
1, Waa sax in saameynta taageerada degdegga ah ee bilowga ah la gaari karo, qaab-dhismeedka dhagaxa ku xeeranna si fiican loo xakameyn karo in la gaaro saameyn xasillooni oo wanaagsan.
2、 Waxay isticmaashaa hab godan marka la qorsheynayo, iyadoo la isku darayo ulaha barroosinka iyo tuubooyinka grouting. Waa noocan qorshaynta ah kan faa'iidooyin waaweyn leh. Haddii uu yahay tuubo grouting dhaqameed, waxay sababi kartaa khasaare ka dhasha jiidista gadaal iyo gadaal, taas oo aan soo bandhigi doonin dhacdo noocaas ah.
3, Waxay si weyn u hagaajin kartaa tayada mashruuca, taas oo ah sababta oo ah waxay gaari kartaa heer aad u weyn oo buuxnaan ah inta lagu jiro grouting, iyo iyadoo la socota grouting, waxay gaari kartaa saameynta grouting cadaadiska.
4、 Dhexdhexaadnimadeedu waa wanaagsan tahay. Marka lagu daro agabyada kale inta lagu jiro isticmaalka, waxay kordhisaa dhexdhexaadnimadeeda, taasoo u oggolaanaysa in slurry-ku uu duubo usha godka ah oo dhan. Sababtaas awgeed ayaa miridhku u muuqan waayay inta la isticmaalayo oo uu si dhab ah u gaari karo isticmaal waqti dheer ah.
5、 Sidoo kale aad bay ugu habboon tahay qalabka, taas oo sidoo kale aad muhiim u ah. Ilaa iyo inta ay ku habboon tahay qalabka, waxay soo gaabin kartaa wakhtiga hagaajinta iyo dhismaha. Iyada oo la socota qalabka, looma baahna boolal dheeraad ah si loo daboolo shuruudaha qalabka.
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