An Investigation on the Influence of Depth of Cut and Blasting on Shovel Digging Performance

Date

1992-06-01

Author

Karpuz, Celal
Pasamehmetoğlu, A.gunhan

Metadata

Show full item record

Item Usage Stats

127
views

0
downloads

This paper describes the results of performance monitoring of electrical shovels in terms of depth of cut and blast performance on diggability. A field research programme has been undertaken at four different rock units of surface coal mines, namely Yatağan fresh and weathered marl, Tinaz marl and conglomerate. A performance monitoring system has been developed and utilized for different type and size of power shovels. Three different depth of classes (< 0·4, 04–0·6, 0·6–0·8 meters for unblasted cases) are established and indicated on dipper of the shovel before excavation. Those depth of classes were tried with and/or without blasting. The digging difficulty of rock units in terms of power consumption has been determined before and after blasting. As it is expected, the power consumption and specific digging energy increase, as the rock unit becoming harder and stronger and depth of cut increases.

URI

https://hdl.handle.net/11511/75225
https://www.tandfonline.com/doi/abs/10.1080/09208119208944331

Journal

International Journal of Mining Reclamation and Environment

Collections

Department of Mining Engineering, Article

Suggestions

OpenMETU
Core

An experimental study on channel type shear connectors Baran, Eray; Topkaya, Cem (2012-07-01) This paper describes an experimental study on European channel shear connectors. While shear studs are widely used in steel-concrete composite elements, the channel connectors are also gaining popularity due to their certain advantages. The channel connectors do not require special equipment and standard welding procedures are adequate for attachment purposes. In addition, this type of connector offers higher amounts of shear resistance due to its high contact area with surrounding concrete. Although first ...
An investigation into the thermal behavior of coals Kök, Mustafa Verşan (2002-10-01) The thermal behavior of 4 coal samples was investigated using simultaneous thermogravimetry (TG/DTG) and differential thermal analysis (DTA) methods. Upon heating the coals in an inert atmosphere up to 800degreesC, 31.44-43.82% weight loss occurs. The 2 temperature regions of increased chemical reactivity are evident in the coal samples studied Two different models determined kinetic analysis of the samples, and the results are discussed.
Investigation of the effect of structural damping on wind turbine wind-induced fatigue loads Kocan, Cagri; Özgen, Gökhan Osman (2022-09-01) This paper presents a quantitative investigation of the effect of structural damping ratios of the tower and blade vibration modes of wind turbines on wind-induced fatigue loads at critical blade and tower sections. Fatigue loads are used as a relative measure of fatigue life in wind turbine design applications. By increasing the structural damping ratio of each one of the critical structural modes which highly contribute to the overall vibration response, short-term and lifetime fatigue loads at critical t...
A robust design optimization of a mixed-flow compressor impeller Çevik, Mert; Uzol, Oğuz; Yavrucuk, İlkay (null; 2009-06-08) This paper presents the results of a design and optimization study for the impeller of a small mixed-flow compressor. The objective of the optimization is to obtain an impeller geometry that could minimize a cost function based on the specific thrust and the thrust specific fuel consumption (TSFC) of a small jet engine. The design methodology is based on generating a configurational database for various compressor geometries using ID design codes and a commercial turbomachinery design/analysis software, app...
An improvement to linear-elastic procedures for seismic performance assessment Gunay, Mehmet Selim; Sucuoğlu, Haluk (Wiley, 2010-07-10) An improved linear-elastic analysis procedure is developed in this paper as a simple approximate method for displacement-based seismic assessment of the existing buildings. The procedure is mainly based on reducing the stiffness of structural members that are expected to respond in the inelastic range in a single global iteration step. Modal spectral displacement demands are determined from the equal displacement rule. Response predictions obtained from the proposed procedure are evaluated comparatively by ...

Citation Formats

C. Karpuz and A. g. Pasamehmetoğlu, “An Investigation on the Influence of Depth of Cut and Blasting on Shovel Digging Performance,” International Journal of Mining Reclamation and Environment, pp. 161–167, 1992, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/75225.