Orman yol inşaatı ihale sonuçlarının değerlendirilmesi: Bolu Bölge Müdürlüğü örneği

Evaluation of the tender results of forest road constructions: A case study in Bolu Regional DirectorateAbstract: The construction of forest roads is realized by tenders by the General Directorate of Forestry. The amount of work on the approximate cost schedule required for the tender is determined according to the 1st discernment measurements made during the road application. Unexpected disputes have been occurred in the process of finalizing the contracts by measurements of the preliminary survey, without the detailed project is prepared. The aim of this study is to compare the road construction data that are calculated while going out to the tender and the exact values that are occurred as a result of the construction. A total of 34 forest roads constructed by Bolu Forest Regional Directorate (BFRD) between 2007 and 2014 were sampled and studied. Data were obtained and evaluated from the tender dossiers to compare the approximate cost of the tenders and progress values (excavation quantities, excavation features and costs) of these projects. In addition, these roads have been evaluated according to forest road technical standards. According to the results of the research; the total length of the assessed roads was 73,879 m, and the total costs were $ 977,138 and a total of 726,366 m3 of excavation was carried out for the construction of these roads. As a result of paired sample t-tests performed; the difference between the tender amount and the progress payment amounts and the amount of very hard rock excavation and the approximate cost very hard rock excavation amount were found to be statistically significant.Keywords: Forest road construction, tender cost, progress payment, Turkey Orman yol inşaatı ihale sonuçlarının değerlendirilmesi: Bolu Bölge Müdürlüğü örneğiÖzet: Orman yollarının inşası, Orman Genel Müdürlüğü tarafından ihale yoluyla gerçekleştirilmektedir. İhale için gerekli olan yaklaşık maliyet cetvelindeki iş miktarı, yol aplikasyonu sırasında yapılan 1. gözlemsel ölçümlere göre belirlenir. Detaylı proje hazırlanmadan, ön araştırma ölçümleriyle sözleşmelerin tamamlanma sürecinde beklenmeyen anlaşmazlıklar meydana gelmektedir. Bu çalışmanın amacı, ihaleye çıkılırken hesaplanan yol inşa verileri ile inşaat sonucunda çıkan kesin değerlerin karşılaştırılmasıdır. 2007-2014 yılları arasında Bolu Orman Bölge Müdürlüğü (BOBM) tarafından yapılan toplam 34 orman yolu örneklenerek incelenmiştir. Bu projelerin ihale yaklaşık maliyet ve hakediş değerlerini (kazı miktarını, kazı özelliklerini ve maliyetleri) karşılaştırmak için ihale dosyalarından veriler elde edilmiş ve değerlendirilmiştir. Ayrıca, bu yollar orman yolu teknik standartlarına göre değerlendirilmiştir. Araştırma sonuçlarına göre; yolların toplam uzunluğu 73.879 m ve toplam maliyeti 977.138 $ olup bu yolların inşası için toplam 726.366 m3 kazı yapılmıştır. Yapılan bağımlı iki örnek t-testi sonucunda; ihale toplam tutarı ile hakediş toplam tutarı arasındaki fark ve hakediş çok sert kaya kazı miktarı ile yaklaşık maliyet çok sert kaya kazı miktarı arasındaki fark istatistiksel olarak anlamlı bulunmuştur.Anahtar Kelimeler: Orman yol inşaatı, ihale bedeli, hakediş, TürkiyeReceived (Geliş): 13.02.2017 - Revised (Düzeltme): 22.03.2017 - Accepted (Kabul): 26.04.2017Cite (Atıf): Türk, Y., Gümüş, S., 2017. Evaluation of the tender results of forest road constructions: A case study in Bolu Regional Directorate. Journal of the Faculty of Forestry Istanbul University 67(2): 194-202. DOI: 10.17099/jffiu.292012

Anahtar Kelimeler:

Orman yol inşaatı, ihale bedeli, hakediş, Türkiye

Evaluation of the tender results of forest road constructions: A case study in Bolu Regional Directorate

Keywords:

tender cost, Forest road construction, progress payment, Turkey,

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