Author: Edgar S. Rush
Publisher:
ISBN:
Category : Bulldozers
Languages : en
Pages : 298
Book Description
Feasibility of Using Large Tractor Dozers in the Surface Mining of Coal and the Reclamaton of Mined Areas
Author: Edgar S. Rush
Publisher:
ISBN:
Category : Bulldozers
Languages : en
Pages : 298
Book Description
Publisher:
ISBN:
Category : Bulldozers
Languages : en
Pages : 298
Book Description
Feasibility of Using Large Tractor Dozers in the Surface Mining of Coal and the Reclamation of Mined Areas
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 246
Book Description
Three tracked and three wheeled larger dozers concepts were evaluated to determine their potential for earthmoving, based on the earthmoving rates and owning and oeprating costs of existing dozers. The concepts evaluated were in the 1250- to 5000-horsepower range. For equal operating conditions, using tractor dozers in the 3500- to 5000- horsepower range could increase the earthmoving rates by an estimated 500% over those of currently available dozers in the 500- to 700-horsepower range, and the larger dozer concepts could reduce the earthmoving costs to about $0.015 per loose cubic yard from about $0.02 per loose cubic yard for currently available dozers. Large tracked dozers could be built with the same average ground contact pressures as currently available tracked dozers, which would give them an advantage over equally large wheeled dozers on soil conditions less than optimum for compaction. Four appendices cover the following topics: (1) Terrain data collection procedures and data on strip-mined areas in four different geographical areas in the United States; (2) Vehicle characteristics required for the Army Mobility Model and pertinent characteristics of the dozers evaluated in this study; (3) Scaling laws for a dozer blade optimization study; and (4) Examples of how to apply dozer earthmoving rates and costs to two hypothetical reclamation projects.
Publisher:
ISBN:
Category :
Languages : en
Pages : 246
Book Description
Three tracked and three wheeled larger dozers concepts were evaluated to determine their potential for earthmoving, based on the earthmoving rates and owning and oeprating costs of existing dozers. The concepts evaluated were in the 1250- to 5000-horsepower range. For equal operating conditions, using tractor dozers in the 3500- to 5000- horsepower range could increase the earthmoving rates by an estimated 500% over those of currently available dozers in the 500- to 700-horsepower range, and the larger dozer concepts could reduce the earthmoving costs to about $0.015 per loose cubic yard from about $0.02 per loose cubic yard for currently available dozers. Large tracked dozers could be built with the same average ground contact pressures as currently available tracked dozers, which would give them an advantage over equally large wheeled dozers on soil conditions less than optimum for compaction. Four appendices cover the following topics: (1) Terrain data collection procedures and data on strip-mined areas in four different geographical areas in the United States; (2) Vehicle characteristics required for the Army Mobility Model and pertinent characteristics of the dozers evaluated in this study; (3) Scaling laws for a dozer blade optimization study; and (4) Examples of how to apply dozer earthmoving rates and costs to two hypothetical reclamation projects.
Feasibility of Using Large Tractor Dozers in the Surface Mining of Coal and the Reclamation of Mined Areas
Author: Mobility and Environmental Systems Laboratory (U.S.)
Publisher:
ISBN:
Category : Bulldozers
Languages : en
Pages : 269
Book Description
Publisher:
ISBN:
Category : Bulldozers
Languages : en
Pages : 269
Book Description
Feasibility of Using Large Tractors Dozers in the Surface Mining of Coal and the Reclamation of Mined Areas
Author: Edgar S. Rush
Publisher:
ISBN:
Category :
Languages : en
Pages : 5
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 5
Book Description
A Selective Bibliography of Surface Coal Mining and Reclamation Literature
Author: Argonne National Laboratory
Publisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 164
Book Description
Publisher:
ISBN:
Category : Coal mines and mining
Languages : en
Pages : 164
Book Description
Coal and the Environment Abstract Series: Bibliography on Mined-land Reclamation
Author: United States. Environmental Protection Agency. Office of Research and Development
Publisher:
ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 388
Book Description
Publisher:
ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 388
Book Description
Bibliography on Mined-land Reclamation
Author: Ronald D. Hill
Publisher:
ISBN:
Category : Abandoned mined lands reclamation
Languages : en
Pages : 388
Book Description
Publisher:
ISBN:
Category : Abandoned mined lands reclamation
Languages : en
Pages : 388
Book Description
Fossil Energy Update
Author:
Publisher:
ISBN:
Category : Fossil fuels
Languages : en
Pages : 1052
Book Description
Publisher:
ISBN:
Category : Fossil fuels
Languages : en
Pages : 1052
Book Description
New Publications
Author: United States. Bureau of Mines
Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 28
Book Description
Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 28
Book Description
MRCR, Mining research contract review
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 440
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 440
Book Description