ứng dụng máy quan sát lỗ khoan địa tầng trong chống giữ đường lò bằng kết cấu chống neo

- Authors: Dao Viet Doan
Affiliations:
Hanoi University of Mining and Geology
- *Corresponding:This email address is being protected from spambots. You need JavaScript enabled to view it.
- Received: 10th-June-2020
- Revised: 25th-Apr-2020
- Accepted: 10th-June-2020
- Online: 30th-June-2020
- Section: Mining
Abstract:
This paper introduces about appplication of drilling peep method in surrounding rock ii structure tests. Use GD3Q-GA model 4D ultra-high definition wide intelligent hole television, did surrounding rock structure peep of Nui Beo coal mine and Hon Gai coal mine. The results showed than: From the survey results at Hon Gai coal mine evaluate the quality of surrounding rock by 98 % there ! is a very good rock, also according to the results of 41101 coal roadway in Nui Beo ' coal mine length of anchor bolt can be select is 2.2m, at level -140 of rock roadway length of anchor bolt can be select is 2.1 m.

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