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DTS Equipment Ltd | Mine Shaft and Tunnel Lining

Since then, DTS Group completed lining projects for mine shafts, metro tunnels, ventilation shafts and civil tunnels in Ukraine, Russia, Kazakhstan, Poland, Canada and the UK Those projects included cast iron, cast steel, fabricated rings of different geometry with diameters ranging from 400 to 900 meters...

Photos of vertical mine shafts - Legrena Valley, Lavrio ,

Photos of vertical mine shafts Legrena Valley, Lavrio, Greece Map symbol The numbering of the photographs corresponds to the numbers on the map NOTE: Use the horizontal scroll bar to view panoramic photos ==>>>1 1 2A 2A 2B 2B 3ABC (On the hillside opposite the Odos Athinos side road) 3ABC (Close-up view of the mining complex) 3A...

Unit 16 Mine Development - Mining and Blasting

In this unit, you will learn how a Mine is developed for production, how a shaft is sunk, , On the surface of an underground mine, a collar is required for a shaft or raise entry, while a portal refers to the entrance for an adit, decline, or ramp , excavated and the lining is built up as the shoe sinks c) Pneumatic Caisson...

Advances in Materials Science and Engineering - Hindawi

Many shaft collapses are related to the deterioration and failure of the masonry shaft lining materials In modern mine shaft, concrete is widely used to provide support To analyse shafts stability, the properties of the lining need to be well defined The behaviour of masonry and concrete can be considerably affected by long-term exposure to harsh mine water...

Shaft design criteria | SpringerLink

Summary Criteria for shaft design are described and methods of design developed Among aspects covered in detail are: selection of shaft locations; shaft collar design and determination of collar dimensions; shaft lining design and estimation of side pressures; shaft insets and sump design...

ALL RIGHTS RESERVED DNEPROTECHSERVICE LLC © 2018

MINE SHAFT AND TUNNEL LINING The information provided in this brochure contains general descriptions or characteristics of performance which in actual case of use do not always apply as described or which may change as a result of further development of the products An obligation to provide the respective characteristics shall only exist if ....

A METHODOLOGY FOR LINING DESIGN OF CIRCULAR MINE ,

A METHODOLOGY FOR LINING DESIGN OF CIRCULAR MINE SHAFTS IN DIFFERENT ROCK MASSES submitted by ERDOöAN GÜLER in partial fulfillment of the requirements for the degree of Master of Science in Mining Engineering Department, Middle East Technical University by, Prof Dr ,...

Nondestructive control of a mine shaft cast iron concrete ,

A mine shaft cast iron concrete lining is widely used to support mine shafts under hard geological and hydrogeological conditions [1] Under using this type of a lining a mine shaft consists of several layers: the cast iron lining, the concrete layer and rock massive The structural element of the cast iron lining ,...

Shaft Sinking - Macmahon Holdings

(Sinking & Lining of 3 shafts, 2 x 65mØ and 1 x 75m Ø) CSA Mine (NSW) – CMPL (Sinking & Lining the 500m deep extension of the existing No 1 shaft) Long-Victor Mine (WA) – Independence Group (Support & Water Control 400m x 4m Ø raisebore) Cosmos Nickel Mine (WA) – Xstrata (Sinking & Lining of 2 shafts, 250m x 6mØ and 405m x 3m Ø)...

GB2130622A - Mine shaft lining - Google Patents

1 A methodfor lining a bore hole with a stackof cylindrical lining segments wherein the system for carrying outthe lining operation includes a plurality of cylindrical lining segments, each of the segments having a plurality of radially extending openings at a location near its base and a plurality of longitudinally extending openings thatform conduitsthrough the segment, means for ....

A review ofsome aspects ofshaft design - SAIMM

A review ofsome aspects ofshaft design byGW HOLL, Pr Eng, Associate ofthe Mine Managers Association ofSouth Africa (Fellow)- , invariably walk into the mine, and the material isminimal in , lining, and equipping an inclined shaft having anoutput comparable withthat ofa...

Shaft Sinking and Lining Design for a Deep Potash Shaft in ,

Shaft Sinking and Lining Design for a Deep Potash Shaft in Squeezing Ground , This paper describes key geotechnical issues in the design and excavation of mine shafts ,...

DESIGN OF THE SHAFT LINING AND SHAFT STATIONS FOR ,

Design of the shaft lining and shaft stations for deep polymetallic ore deposits, 131 r w na RQD J J Q J JSRF = (5) where Jn is the joint set number, Jr indicates the joint roughness number, Ja is the joint alteration number, Jw is the joint water reduction factor, whereas SRF is the stress re- duction factor...

DESIGN OF THE SHAFT LINING AND SHAFT STATIONS FOR ,

Design of the shaft lining and shaft stations for deep polymetallic ore deposits, 131 r w na RQD J J Q J JSRF = (5) where Jn is the joint set number, Jr indicates the joint roughness number, Ja is the joint alteration number, Jw is the joint water reduction factor, whereas SRF is the stress re- duction factor...

Mine Shaft Sinking Methods

Conventional mine shaft sinking methods involve the performance of a cycle of different operations—drilling and blasting, removal of smoke and cleaning of fly-rock lodged on overhead timbers, mucking and hoisting of the broken rock, and timbering The latter (a) may be the last operation of the cycle, (b) may be carried on during drilling and mucking, provided it is done from a substantial ....

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...

nickel mine hydraulic crushing equipment - yumthaorg

May 04, 2019· nickel mine hydraulic crushing equipment Concrete Recycling Equipment Alibaba Concrete crushing recycling equipment , Complete stone crushing line for sale machinery , concrete recycling equipment , nickel mine portable crushing plant...

MINE DEVELOPMENT – ACCESS TO DEPOSIT

shaft system, so the mine engineer/planner must consider the entire mineral resource or potential to increase the resource at depth Figure 1 depicts a typical access strategy for platinum mine where the initial orebody is exploited by means of an incline or decline shaft system, and later accessed by vertical shafts...

A methodology for lining design of circular mine shafts in ,

In this study, a new methodology for lining design of circular mine shafts in different rock masses is developed A parametric study is carried out using the finite element numerical modelling of 2D shaft sections in a Hoek–Brown Medium in a non-hydrostatic stress state in an attempt to predict the pressures developing around mine shafts...

Miners Terminology - goldstrike colorado gold experience

Drifts-tunnels leading from main shaft or from other tunnels or levels through and along vein Dump-Place to deposit ore after taking from mine; pile of ore or waste rock Dyke- A long and relatively thin body of igneous rock that, while in the molten state, intruded a fissure in older rocks Face-Extreme end of tunnel, drift or excavation...

Numerical modelling of shaft lining stability at deep mine

Numerical modelling of shaft lining stability at deep mine Y D Jia*1, R Stace1 and A Williams2 During the last thirty years, the Boulby Potash Mine has replaced the concrete shaft linings in sections of both shafts on two occasions following progressive deterioration A third replacement lining is now under construction in the man shaft...

How to build a mine | MINING

Mar 24, 2017· The old adage “Mines are made not found” is a good start to “How to Build a Mine” There are thousands of mineral discoveries with very few that reach the positive feasibility stage and ....

Inspection and Maintenance of Shafts and Mine Cages are ,

Inspection and Maintenance of Shafts and Mine Cages are Essential Mining companies specializing in underground mining know that each mine is unique as each deposit has its own set of geologic, geochemical, and geophysical characteristics The same holds true for mine shafts and mining cages and, though they are built in accordance to ....

Mine Shaft Conveyance Monitoring - Centers for Disease ,

Mine Shaft Conveyance Monitoring Author: Deanna Baumann Created Date: Thursday, December 09, 1999 2:30:38 PM ....

US4270876A - Method of lining a vertical mine shaft with ,

The apparatus includes a cylindrical retainer form spaced inwardly of the wall of the shaft by the desired thickness of the liner to be poured and having overlapping edges which seal against concrete flow but permit the form to be contracted to a smaller circumference after the liner has hardened and is self-supporting A curb ring extends downwardly and outwardly toward the shaft wall from ....

Shaft mining - Wikipedia

Shaft mining or shaft sinking is excavating a vertical or near-vertical tunnel from the top down, where there is initially no access to the bottom Shallow shafts, typically sunk for civil engineering projects differ greatly in execution method from deep shafts, typically sunk for mining projectsWhen the top of the excavation is the ground surface, it is referred to as a shaft,...

A review ofsome aspects ofshaft design - SAIMM

A review ofsome aspects ofshaft design byGW HOLL, Pr Eng, Associate ofthe Mine Managers Association ofSouth Africa (Fellow)- , invariably walk into the mine, and the material isminimal in , lining, and equipping an inclined shaft having anoutput comparable withthat ofa...

Amazing pictures of 300ft Cornish mineshaft are captured ,

Mar 14, 2016· When the latest mine opened up in Scorrier, an enterprising local rigged a camera to a drone and sent it above the shaft to show how deep it really is...

Vertical Shaft Sinking Machine (VSM) – Herrenknecht AG

Vertical Shaft Sinking Machines (VSM) in operation For quick and reliable construction of vertical shafts, Herrenknecht developed its VSM (Vertical Shaft Sinking Machine) technology, today an established product on the market This unique mechanized shaft sinking equipment shows its strengths particularly below groundwater...

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 , Failure of the shaft lining: The most frequent failures of the shaft lining result from a decrease of its strength or ,...