Year 2017, Volume 3 , Issue 2, Pages 44 - 51 2017-12-05

Effect of Subsurface Materials on Earthwork Operation Costs of Forest Road

Iman Pazhouhan [1] , Akbar NAJAFİ [2] , Abolghasem KAMKAR ROUHANİ [3] , Javad VAHİDİ [4]


Major cost of forest construction operation is spent to earthwork operations. Therefore, time studies, estimation machine productivity and earthwork operation cost would be necessary to better utilization of current resources. In this research, impact of subsurface materials as key factor in forest road construction operation was investigated in a one kilometer forest road as study area. Subsurface material of the road, constructed by a Hydraulic excavator and a bulldozer, was contained three layers in term of digging: soft (soil), medium and hard (rocky). For this purpose, time of machines work cycle elements included warm up, movement from camp to study area, extracting remained trunk if any, earthwork activity, mealtimes and regular delays were accurately recorded during 15 working days. Furthermore, relevant cut and fill subsurface material was measured precisely. The results of continues time studies showed that mean production rates vary from 34.98 m3/hr in hard layer to 331.63 m3/hr in soft layer. The results indicated that there was a direct relationship between rock share volume and delay times, therefore technical and personal delays in rocky layers were considerably more than other layers. Proportions of delays were 9% and 16% in soil and rocky layers, respectively. Also, production cost was 0.12 $/m3, 0.27 $/m3 and 1.13 $/m3 in soil, medium, and rocky layers, respectively.

Time study, Earthwork operation, Digging, Rock share, Hourly cost
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Subjects Engineering
Journal Section Research Articles
Authors

Author: Iman Pazhouhan
Country: Iran


Author: Akbar NAJAFİ
Country: Iran


Author: Abolghasem KAMKAR ROUHANİ
Country: Iran


Author: Javad VAHİDİ
Country: Iran


Dates

Publication Date : December 5, 2017

Bibtex @research article { ejfe318600, journal = {European Journal of Forest Engineering}, issn = {}, eissn = {2149-5637}, address = {}, publisher = {Forest Engineering and Technologies Platform}, year = {2017}, volume = {3}, pages = {44 - 51}, doi = {}, title = {Effect of Subsurface Materials on Earthwork Operation Costs of Forest Road}, key = {cite}, author = {Pazhouhan, Iman and Najafi̇, Akbar and Kamkar Rouhani̇, Abolghasem and Vahi̇di̇, Javad} }
APA Pazhouhan, I , Najafi̇, A , Kamkar Rouhani̇, A , Vahi̇di̇, J . (2017). Effect of Subsurface Materials on Earthwork Operation Costs of Forest Road . European Journal of Forest Engineering , 3 (2) , 44-51 . Retrieved from https://dergipark.org.tr/en/pub/ejfe/issue/32269/318600
MLA Pazhouhan, I , Najafi̇, A , Kamkar Rouhani̇, A , Vahi̇di̇, J . "Effect of Subsurface Materials on Earthwork Operation Costs of Forest Road" . European Journal of Forest Engineering 3 (2017 ): 44-51 <https://dergipark.org.tr/en/pub/ejfe/issue/32269/318600>
Chicago Pazhouhan, I , Najafi̇, A , Kamkar Rouhani̇, A , Vahi̇di̇, J . "Effect of Subsurface Materials on Earthwork Operation Costs of Forest Road". European Journal of Forest Engineering 3 (2017 ): 44-51
RIS TY - JOUR T1 - Effect of Subsurface Materials on Earthwork Operation Costs of Forest Road AU - Iman Pazhouhan , Akbar Najafi̇ , Abolghasem Kamkar Rouhani̇ , Javad Vahi̇di̇ Y1 - 2017 PY - 2017 N1 - DO - T2 - European Journal of Forest Engineering JF - Journal JO - JOR SP - 44 EP - 51 VL - 3 IS - 2 SN - -2149-5637 M3 - UR - Y2 - 2017 ER -
EndNote %0 European Journal of Forest Engineering Effect of Subsurface Materials on Earthwork Operation Costs of Forest Road %A Iman Pazhouhan , Akbar Najafi̇ , Abolghasem Kamkar Rouhani̇ , Javad Vahi̇di̇ %T Effect of Subsurface Materials on Earthwork Operation Costs of Forest Road %D 2017 %J European Journal of Forest Engineering %P -2149-5637 %V 3 %N 2 %R %U
ISNAD Pazhouhan, Iman , Najafi̇, Akbar , Kamkar Rouhani̇, Abolghasem , Vahi̇di̇, Javad . "Effect of Subsurface Materials on Earthwork Operation Costs of Forest Road". European Journal of Forest Engineering 3 / 2 (December 2017): 44-51 .
AMA Pazhouhan I , Najafi̇ A , Kamkar Rouhani̇ A , Vahi̇di̇ J . Effect of Subsurface Materials on Earthwork Operation Costs of Forest Road. Eur J Forest Eng. 2017; 3(2): 44-51.
Vancouver Pazhouhan I , Najafi̇ A , Kamkar Rouhani̇ A , Vahi̇di̇ J . Effect of Subsurface Materials on Earthwork Operation Costs of Forest Road. European Journal of Forest Engineering. 2017; 3(2): 44-51.