D 2016

Assessing the Relationship of Mineability of Rocks and Machines for Earthwork

KUČERKA, Daniel, Ondrej STOPKA, Ján KMEC, Monika KARKOVÁ, Miroslav GOMBÁR et. al.

Basic information

Original name

Assessing the Relationship of Mineability of Rocks and Machines for Earthwork

Name in Czech

Posouzení vztahu těžebních možností hornin a strojů v rámci zemních prací

Authors

KUČERKA, Daniel (703 Slovakia, belonging to the institution), Ondrej STOPKA (703 Slovakia, belonging to the institution), Ján KMEC (703 Slovakia, belonging to the institution), Monika KARKOVÁ (703 Slovakia, belonging to the institution), Miroslav GOMBÁR (703 Slovakia, belonging to the institution), Jiří MÍKA (203 Czech Republic, belonging to the institution), Petr HRUBÝ (203 Czech Republic, belonging to the institution) and Viktorie WEISS (203 Czech Republic, belonging to the institution)

Edition

Netherlands, World Multidisciplinary Civil Engineering-Architecture-Urban Planning Symposium 2016 (WMCAUS 2016), p. 368-373, 6 pp. 2016

Publisher

Elsevier Ltd.

Other information

Language

English

Type of outcome

Stať ve sborníku

Field of Study

20000 2. Engineering and Technology

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

Publication form

electronic version available online

RIV identification code

RIV/75081431:_____/16:00000899

Organization unit

Institute of Technology and Business in České Budějovice

ISSN

Keywords (in Czech)

odpor hornin při lomení; zemní práce; výkopové práce; strojní mechanismy

Keywords in English

breakage resistance of rocks; earthwork; excavation; machinery mechanisms

Tags

Změněno: 4/1/2017 11:24, Hana Dlouhá

Abstract

V originále

Classification of the mineability of rocks is an integral part of the earthworks occurring in the implementation of engineering works. The existence of degrees of excavation difficulty allows us to specify the needs of mechanisms for earthworks. It is determined according to the old standard CSN 73 3050, and new standard CSN 73 6133. Both standards define the mechanical mechanisms that should be used for each degrees of excavation difficulty. Based on this rock may be the most optimal breakage and extracted without machine selection would have been undersized. That would mean its destruction and inefficient extraction of rocks, or contrary oversizing. On that basis, there would be an unreasonable overpricing earthworks. Into force has already entered a new standard but there are a number of differences in their classification. The publication deals with the evaluation degrees of excavation difficulty, and mechanical mechanisms for earthwork and differences between the two standards, respectively their similarities. It is evident that the old standard represents a very detailed division of soil and rock into seven degrees of excavation difficulty and thus represents a substantially transparent calculation of the total price of earthworks. In contrast, the new standard gives only three degrees of excavation difficulty. This represents a major simplification of the process of classification and subsequent utilization of engineering mechanisms.