Zobrazeno 1 - 10
of 775
pro vyhledávání: '"ROTARY drilling"'
Autor:
Koronatov, V. A.1 kortavik@mail.ru
Publikováno v:
Journal of Mining Science. Feb2023, Vol. 59 Issue 1, p39-52. 14p.
Autor:
Sher, E. N.1 ensher@gmail.com
Publikováno v:
Journal of Mining Science. Nov2021, Vol. 57 Issue 6, p955-964. 10p.
Autor:
Meddah, Sabrina, Tadjer, Sid Ahmed, Idir, Abdelhakim, Tee, Kong Fah, Doghmane, Mohamed Zinelabidine, Kidouche, Madjid
Publikováno v:
Structural Durability & Health Monitoring (SDHM); 2025, Vol. 19 Issue 1, p77-103, 27p
Publikováno v:
Petroleum Exploration and Development, Vol 51, Iss 4, Pp 1009-1021 (2024)
Aiming at the problems of large load of rotation drive system, low efficiency of torque transmission and high cost for operation and maintenance of liner steering drilling system for the horizontal well, a new method of liner differential rotary dril
Externí odkaz:
https://doaj.org/article/4f863e78fef34cb3a86f941f80202b89
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 5, Pp 1732-1748 (2024)
This study purposes an in situ testing method on quality assessment of soil improvement. Factual drilling data includes the spatial distribution and in situ strength of untreated and treated soil along three different drillholes measured by on-site d
Externí odkaz:
https://doaj.org/article/462238a9357d463c912520674a5445b8
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 5, Pp 1615-1636 (2024)
Rock and geotechnical engineering investigations involve drilling holes in ground with or without retrieving soil and rock samples to construct the subsurface ground profile. On the basis of an actual soil nailing drilling for a slope stability proje
Externí odkaz:
https://doaj.org/article/af2d589dc06b4b74b2e1636c17ffefe0
Autor:
Muis, Ramdiana, Al Fariz, Reza Darma, Yunus, Sattar, Tasrief, Robertho, Rachman, Indriyani, Toru Matsumoto
Publikováno v:
Ecological Engineering & Environmental Technology (EEET); 2024, Vol. 25 Issue 3, p185-196, 12p
Publikováno v:
IEEE Photonics Journal, Vol 16, Iss 3, Pp 1-9 (2024)
Rotary drilling has been recognized for its excellent drilling performance in laser drilling. However, there are few studies on the optical path trajectory equations guiding the implementation of laser rotary drilling, which has limited the developme
Externí odkaz:
https://doaj.org/article/72c9b1f67d8b4a7d9e78580f287ad6e6
Characteristics of Gravelly Granite Residual Soil in Bored Pile Design: An In Situ Test in Shenzhen.
Publikováno v:
Advances in Materials Science & Engineering. 10/16/2018, p1-13. 13p.