waste rock

The upward filling method with tailings or waste rock were used in a certain gold mine, roof caving and wall caving occurred many times.

Early mining methods either left open voids after the ore had been removed or permitted the caving of the surrounding waste rock.

After burning the flat coal waste rock pile of the heavy metals pollution levels for light pollution.

This thesis introduces a new replacement exploitation machine which can fill the coal mine laneways with waste rock.

According to the problems above, the waste rock fill mining method with the upward slitting stratification is put forward.

Relative to the waste rock dump of underground mining, open-pit mining needs a larger one.

The difficult problem that with brick of mark of waste rock, shaly production, air brick expensive wet stock smashs.

The hoisting system of the new main shaft in Tonglushan copper iron mine is used to hoist the underground ore and waste rock.

In the waste dump, the Abstract is linked with the winch working Laoqin drivers turn waste rock.

Bulk waste rock has been stuck Liu Zi pull scraper bad phenomenon.

The miners muck the waste rock every other day.

It includes comprehensive utilization of mined waste rock, back filling of waste slag to can not be utilized to underground.

if you are a lazy people, abandoned every day to get by, it will always be a waste rock.

Composite roadbed made of waste rock for the purpose of environmental protection

Study of Feasible Valuation on Comprehensive Utilization of Coal Waste Rock Resource

Investigation of Radon Pollution of Waste-rock Yard and Tailing Sand Reservoir of A Uranium Mine

Experiment study of utilizing waste rock from tunnels to compound the tigh performance

Study of the Laws of Water and Soil Loss and Preventive Measure in Waste Rock Hill

Effects of Weathering Degree on the Total Salt and pH of Weathering Coal Waste Rock

Chaos Characteristics Study of Irregular Waste Rock and Charcoal

lack of tailings, waste rock comprehensive utilization technology and advanced project to promote slow;

Concrete construction of coal waste rock synthetically using bottom board of coal-storing tubular storehouse in power factory

The State-of-Arts of Application And Development Trend of Cemented Waste Rock Filling

Study of on-line recognition and automatic separation of waste rock in coal mine

The Manufacture and Test of Discriminating Photoelectric System for Selecting Waste Rock

Study on Distribution Rules of Acid Mine Drainage and Heavy Metal Pollution of Sulphide Mineral in the Waste Rock Site

At present, treating of mined areas always adopt the following procedure: filling with waste rock, earth and cement in mined areas;

Waste Rock Loss and Its Preventive Works Design in Huangling Coal Mine

Simulation Analysis for Leachate of Waste Rock Hill Transport in Groundwater System

Radioactive Safety Analysis and Assessment of Waste Rock Pile Site in Uranium Tailings

Research and Application of "one scoop and two obstacles" method in thin coal seam with hard and waste rock layers

Application of waste rock caving technology in fully mechanized coal caving face

Technical Innovation of Side - dump Waste Rock Unloading Scaffold

Preliminary study on greening planning for waste rock-mining mountains

Installation construction of cableway traveling tower for waste rock discharge in Hupodi coal washery

Waste rock hill hazard and its prevention and control

Temperature Field Model of Spontaneous Combustion of Waste Rock Dump

Radon Emanation Characteristics in Uranium Waste Rock Pile Site

Research on ARD and Speciation of Heavy Metals in Leaching Test of Waste Rock in Copper Mines

Radiation Protection for Tailings and Waste Rock Pile Site in Uranium Mine and Mill

Optimizing Reforming of Waste Rock Drained System of Waste Dump in Qishan Coal Mine and Application

Application of Red Waste Rock in Support of Tunnel with Anchor and Jetting

Discussion on the waste rock filler technology circuit in the coal well

Several Ways of Synthetical Utilization of Waste Rock

Basic Rate Model of the Pollution Charge on the Waste Rock

The Design of Steep Border Slope for Mine Road Cuts through Waste-rock Yard

Groundwater Pollution Near Coal Waste Rock Dump

Treatment of Leaching Acidulous Water in Waste Rock Dump

On Dedusting of Stirring Machine in Waste Rock Brick Factory

Test Research on Leachability of Waste Rock in Baiyin Open-Pit Mine

Study on heavy metals in soil contaminated by coal waste rock pile

Effect of Waste Rock Eluviation on Water Environment

Application of Separate Loading and Transport System of Waste Rock in Shanjiaoshu Mine

The treatment of mine waste rock at underground

Study on Soil Permeability of Waste Rock Hill

Using waste rock fill grouting mud way to seal ordo'vician water