Results 11 to 20 of about 119 (98)
Research on vertical structure stability before cementing ultra-deep wellbore by drilling method [PDF]
Meitan xuebaoTo address the problem of vertical stability of ultra-deep wellbore by drilling method, firstly, the results of the equation of critical height of equal section for non-full counterweighted water drilled wellbore are compared with the results of the ...
Renliang SHAN +7 more
doaj +2 more sources
The Intelligent Control System of the Freezing Station in Coal Mine Freezing Shaft Sinking [PDF]
, 2014 In order to address the issue of low degree of automation and huge waste of electric energy of the equipment in drilling engineering freezing station which adopts the freezing method of coal mine, we need to design an intelligent control system to ...
Zheng, Xiaoliang +2 more
core +4 more sources
Entwicklung pneumatischer Lade- und Fördersysteme für das konventionelle Schachtabteufen [PDF]
, 2017 Shafts provide a vertical and an inclined connection from surface to underground working areas, e.g. for mining and tunnel construction operations.
Kratz, Thorsten
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Excavation and drilling at a spent-fuel test facility in granitic rock [PDF]
, 1981 Funding for a project to test the feasibility of safe and reliable storage and retrieval of spent fuel from a commercial nuclear reactor was approved by the Department of Energy on June 2, 1978. By May 28, 1980, 11 spent-fuel assemblies had been emplaced
Patrick, W.C., Mayr, M.C.
core +1 more source
Określenie głębokości zamrażania górotworu dla potrzeb głębienia szybów w trudnych warunkach hydrogeologicznych i geotechnicznych [PDF]
, 2014 Methods of determining the depth of rock mass freezing for the purpose of shaft sinking in solid rocks in difficult hydrogeological and geomechanical conditions are analyzed in this paper.
Duda, R.
core +1 more source
Deep Underground Science and Engineering, EarlyView.A novel cavity contraction solution and multilayer shaft wall model were developed to analyze deep shaft stability, considering rock viscosity, support structures, and water pressure, with successful validation through a Hulusu Coal Mine case study.
Bin Chen +5 more
wiley +1 more source
Epilepsia, EarlyView.Abstract Objective This study was undertaken to design and validate a hybrid depth electrode combining stereoelectroencephalographic (sEEG) recording and magnetic resonance‐guided laser interstitial thermal therapy (MRgLITT) under real‐time magnetic resonance thermometry, to streamline the transition from invasive localization to focal ablation in ...
Bertrand Mathon +3 more
wiley +1 more source
Yantu gongcheng xuebaoThis study addresses the issues of severe wear and low rock-breaking efficiency of shaft sinking by drilling methods in the Jurassic strata of Western China, focusing on milled-tooth roller cutter commonly used in this drilling method.
CHENG Hua 1, 2, WANG Xiaoyun 1, YAO Zhishu 1, ZHU Jian 3, RONG Chuanxin 1, FU Xinpeng 4
doaj +1 more source
Actuation Strategies for Underwater Jet‐Propelled Soft Robots
Journal of Field Robotics, Volume 43, Issue 6, Page 3868-3892, September 2026.ABSTRACT This review article examines jet‐propulsion mechanisms in underwater soft robotic systems, focusing exclusively on physically fabricated and experimentally validated robots. Covering research published from 2013 to 2025, this study classifies and evaluates jet‐propulsion robots based on their actuation mechanisms.
Angel Kitone +3 more
wiley +1 more source
Applied SciencesThis study addresses the calculation of vertical stability for shaft walls during floating and sinking processes in deep vertical shaft drilling in Western China.
Zhiwei Zhang +4 more
doaj +1 more source