lining of mine shaft and jigging

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Technoeconomics of Shotcrete Shaft Lining for Underground

60689 MT production from underground mines was 3048 MT 1991 share Lined shafts made mandatory by DGMS Circular for man and material winding In India with progressive depletion of shallow deposits there is no option but to deepen the existing shafts or sink new shafts to mine coals and reduce import burden...

Handbook to best practices for mine shafts protection

For abandoned mine shafts some problems linked to deterioration of the sealing structure at the shaft head or movement of backfilling material in the shaft have been observed It is also common to find mine shaft opened even decades after mining activity...

Lining Of Mine Shaft And Jigging

Lining Of Mine Shaft And Jigging 40 years of mining machinery manufacturing history three production bases exported to more than 160 countries and regions We are your trusted partner and service provider If you are interested in our products please leave your information and we will have professional online marketing service for you...

PDF Design of lining for a mine shaft and decline using

A vertical circular shaft and a decline are required to be developed for transporting man material and air It is decided that the shaft and the portal of the decline will be located in the...

A METHODOLOGY FOR LINING DESIGN OF CIRCULAR MINE SHAFTS

The objective of this thesis is to predict lining thickness inside circular mine shafts A numerical study with different rock mass strengths and different in-situ non-hydrostatic stresses are carried out in 2D shaft section models to predict pressures that develop on lining support...

US1006799A

Reinforced-concrete lining for mine-shafts and method of the manufacture thereof Download PDF Info Publication number US1006799A US1006799A US63 5 711A US1006799DA US1006799A US 1006799 A US1006799 A US 1006799A US 1006799D A US1006799D A US 1006799DA US 1006799 A US1006799 A US 1006799A Authority US United States Prior art keywords shaft...

lining of mine shaft and jigging

16-08-2020 0183 32 Shaft Mining Mining Techniques Underground Mining Shaft lining Several important functions are performed by shaft lining This lining acts as a safety layer preventing the fall of loose or unstable rocks into the shaft It is also a place for shaft sets to be bolted into and it is a smooth surface to allow free flow of air for ventilation...

An experimental evaluation of the weathering effects on

An experimental evaluation of the weathering effects on mine shaft lining materials W Yang 1 2 AM Marshall2 D Wanatowski3 and L R Stace2 Abstract The collapse of historic mine shafts is a major public safety risk in the UK Many shaft collapses are related to the deterioration and failure of the masonry shaft lining materials...

A Lining Design Method Consistent With NATM for Deep Shafts

01-01-2019 0183 32 Shaft lining design of Cixi Colliery in China is completed with the mechanics-based method proposed in this study The lining design is verified through numerical simulation and field monitoring The simulation results show that the maximum mises stress is...

Lining Of Mine Shaft And Jigging

ISSUE OF MULTIPLE LAYER WINDING OF ROPES ONwinders for shaft sinking and in auxiliary emergency rescue and inspection shafts In practice multi layer winding of ropes is applied on smooth faced drums abandoned in mine shaft hoists or in drums with the lining in which grooves are made There is also applied direct grooving of drum shellsGB2130622AMethod for lining a bore hole The...

PDF Design of the shaft lining and shaft stations for

Corpus ID 44454625 Design of the shaft lining and shaft stations for deep polymetallic ore deposits Victoria Mine case study article Fabich2015DesignOT title= Design of the shaft lining and shaft stations for deep polymetallic ore deposits Victoria Mine case study author= S Fabich and J and Magdalena Rajczakowska and S Świtoń journal= Mining Science year= 2015 volume...

DESIGN OF THE SHAFT LINING AND SHAFT STATIONS FOR DEEP

In this paper the methodology of the shaft lining and shaft station lining design for a deep shaft is presented based on the Victoria Mine case study Victoria Mine is lo-cated approximately 32 km southwest of Sudbury Ontario Canada Research com-pleted in this area shows large deposits of nickel copper and precious metals Copper...

Jia Yudan 2011 Numerical modelling of shaft lining

mine Both shafts concrete linings through this stratum have suffered considerable pressure which has caused gradual failure of the shaft lining So far both shaft linings through the Marl stratum have been restored twice after sunk in 1970s and a further third relining is now required and...

SHAFT SINKING METHODS BASED ON THE TOWNLANDS ORE

The Southern African Institute of Mining and Metallurgy Shaft Sinking and Mining Contractors Conference 2009 D Visser Page 4 Picture 1 Increased discharge holes on 3 8 metre reamer base to prevent blocking of reamer See discharged holes indicated with...

DESIGN OF INITIAL SHOTCRETE LINING FOR A MINE SHAFT

DESIGN OF INITIAL SHOTCRETE LINING FOR A MINE SHAFT USING TWO-DIMENSIONAL FINITE AND HYBRID FINITE-DISCRETE ELEMENT METHODS by Saeed Naseri Submitted in partial fulfilment of the requirements for the degree of Master of Applied Science...

Sinking Methods and Present Situation of Vertical Shafts

01-01-2019 0183 32 The mine shaft sinking operation will often be varied by the geological conditions and affected by underground water inflows seam gas outbursts geothermal and other natural conditions The safe construction of the mine shaft sinking will be challenged by all these conditions Although the mine shaft engineering will only be about 5 of the...

Design of Initial Shotcrete Lining for a Mine Shaft Using

17-04-2021 0183 32 Naseri S 2020 Design of initial shotcrete lining for a mine shaft using two-dimensional finite and hybrid finite-discrete element methods MASc thesis Dalhousie University Halifax NS Canada Oke J Vlachopoulos N Diederichs MS 2018 Improvement to the convergence-confinement method inclusion of support installation proximity and stiffness...

Design and Construction of Deep Shaft Concrete Linings in

From 1977 until 1989 sixteen deep shafts were sunk in the UK all concrete lined Subsequently from 1989 up to the present day no deep shafts have been sunk in the UK a period of 30 years Developments in the design and construction of deep shafts in the UK therefore were predominantly carried out throughout the period 1977-1989...

CAST IRON LINING FOR MINE SHAFTS AND TUNNELS by

lining for mine shafts and tunnels reference list for the priod of 2007-2017 mine shaft lining projects reference list 2007-2017 customer project commodity diameter m thickness mm qty pcs...

Sinking and equipping inclined shafts of more than 60

shafts are more often put down in soft rock and pass through faulted zones whereas the vertical shafts are usually in the firm wall rock However in any well con 173 structed shaft where the walls are reasonably firm shaft maintenance is a relatively small item of the mining expense and the lower first cost of the inclined shaft might easily...

Mine Shaft and Tunnel Lining DTS Equipment Ltd

DTS Group iron and steel lining for mine shafts and tunnels is successfully used in underground infrastructure projects all around the world from Kazakhstan and Russia to Canada It is fully customizable and may be adapted to all diameters face shapes sealing types and ground conditions Based on nearly 80 years of experience DTS Group is...

He Peng Li Zhang Dong Xiao 2012 Research on the

Hongchun Xia Meian Tang Mechanism and application of grouting into topsoil to prevent shaft lining fracture J Jounal of Mining and Safety Engineering Vol...