in Ottawa .
Written in English
|Series||T.I.S. report, no. 43|
|Contributions||Ruedy, Richard, 1896-,, National Research Council, Canada. Technical Information Service. T.I.S. report,|
|LC Classifications||TN283 N38|
|The Physical Object|
|Number of Pages||632|
Special Methods For Shaft Sinking. In the process of shaft sinking, it becomes necessary to adopt a special method if the ground through which the shaft is sunk is loose or unstable such as in sand, mud, gravel, or alluvium, or when an excessive amount of water is encountered, which cannot be dealt with by sinking some situations, both sets of these conditions may be encountered. (shaft) sinking by freezing, shafting by freezing, (shaft) deepening by freezing, shaft working by freezing, (shaft) putting down by freezing Gefrier(schacht)abteufen n, Gefrier(schacht)abteufung f. The special construction technology mainly would include ground freezing methods, full diameter shaft drilling methods, caisson methods, grouting technology and concrete curtain methods as well as other methods. The paper summarizes the shaft sinking numbers and effects by the special construction methods during different periods. rate of shaft-sinking advance in hard rock since Except at great depth, shafts sunk in hard rock mines do not normally require special considerations to maintain wall stability. A few shafts require the ground freezing method to traverse a waterbearing horizon.
""Abstract: Khalashpir coal field is the 3rd largest coal field in Bangladesh, where coal occurs at depths of m to m below the surface. Considering the Geological, Geo-environment and other related geoengineering information. Thyssen Mining | Shaft Sinking. Thyssen Mining has been sinking shafts worldwide for over years. Whether it’s using conventional drill and blast methods or innovative mechanized systems, Thyssen Mining’s techniques continue to excel and grow as technology advances and safety standards increase. As removing heat from the ground is the main feature of the method, an efficient thermal design of the freezing process is mandatory to ensure success of the shaft sinking operation. Shaft sinking 1. Akshay S Krishna VNIT Nagpur 2. Mining the mineral deposits Temporary storage and treatment of sewage Bridge and other deep foundations Hydraulic lift pits and Wells In conjunction with tunneling system or network for the purpose of lifts, escalators,stair and ladder- ways,Ventilation, drainage and pumping.