| Agba | nwa, odo | Aha ngwaahịa | arịlịka bolt |
| Mechaa | Na-egbuke egbuke(Enweghị mkpuchi) | Ojiji | Nkwụsi ike mkpọda, obere ikpo, ntu ala, arịlịka nkume |
| Usoro nke nha | Metric | Isi okwu 1 | mkpanaka arịlịka |
| Aha ika | JCDRILL | Isi okwu 2 | mkpara arịlịka nke onwe |
| Ihe onwunwe | Igwe igwe | Isi okwu 3 | eri arịlịka nchara zuru oke |
| Dayameta | R25, R32, R38, R51, T30, T40, T52, T76, T103 | Aha 1 | nkume bolt |
| Ike | Ike ibu dị elu | Aha 2 | oghere arịlịka mmanya |
| Ọkọlọtọ | ISO | Aha 3 | mkpara arịlịka |
Okwu mmalite
Ihe ngosi
JCDRILLusoro arịlịka nke onwe bụ ihe ngwọta maka ala siri ike na ọnọdụ okwute.Usoro na-enyere mkpọpu na grouting n'otu ọrụ, na-eme ka ukwuu na-azọpụta na ebe ọrụ na oge oru ngo.
Ngwa
Tunneling Ground engineering
1. Nkwụsi ike ihu
2. Radial systematic anchoring
3. Ntọala maka nchekwa oke oke mmiri
4. Nkwụsi ike nke ọnụ ụzọ ọwara
5. Na-agbapụta
6. Mkpọrọgwụ ikpo
| T-eriri-arịlịka arịlịka | |||||
 | Nha | Akụkụ | Ọkpụrụkpụ | Oghere Dia. | Ibu |
| mm | mm | mm | kg | ||
| T30 | 150*150 | 25 | 40 | 4.2 | |
| 200*200 | 8 | 36 | 2.43 | ||
| 200*200 | 12 | 38 | 3.85 | ||
| T40/20 | 115*115 | 20 | 56 | 1.6 | |
| T40 | 200*200 | 12 | 56 | 3.5 | |
| 200*200 | 30 | 56 | 8.5 | ||
| T40/16 | 125*125 | 24 | 56 | 2.4 | |
| 200*200 | 15 | 54 | 4.58 | ||
| T52 | 145*145 | 27 | 65 | 3.6 | |
| 220*220 | 35 | 65 | 13.1 | ||
| T73 | 175*175 | 34 | 80 | 6.8 | |
| 250*250 | 40 | 80 | 18 | ||
| T76 | 250*250 | 60 | 80 | 26.9 | |
| T103/78 | 240*240 | 48 | 110 | 18 | |
| 300*300 | 50 | 110 | 32.6 | ||
| T103/51 | 330*330 | 60 | 110 | 46.5 | |
| 285*285 | 67 | 110 | 37.6 | ||
| T111/82 | 300*300 | 80 | 130 | 47.8 | |
| T111/75 | 350*350 | 90 | 130 | 76.8 | |
| T127/103 | 250*250 | 50 | 140 | 18.4 | |
Foto
| Ọnụ ego kacha nta | N/A |
| Ọnụ ahịa | |
| Nkọwa nkwakọ ngwaahịa | Ngwungwu mbupu ọkọlọtọ |
| Oge Mbuga ozi | 7 ụbọchị |
| Usoro ịkwụ ụgwọ | T/T |
| Ikike inye | Dabere na usoro zuru ezu |
