مهندسی سیستم و بهره‌وری

مهندسی سیستم و بهره‌وری

بررسی علل تأخیر و افزایش هزینه پروژه‌های عمرانی درون‌شهری و ارائه راهکار اجرایی مناسب مبتنی بر مهندسی ارزش (موردمطالعه: مترو کرج)

نوع مقاله : پژوهشی

نویسندگان
1 نویسنده مسئول: کارشناسی ارشد، گروه مهندسی عمران، دانشکده مهندسی عمران و معماری، دانشگاه ایوان‌کی، ایوان‌کی، ایران
2 استاد، گروه مهندسی صنایع، دانشکده مهندسی صنایع، دانشگاه ایوان‌کی، ایوان‌کی، ایران
چکیده
تأخیر در پروژه­های عمرانی، یکی از متداول­ترین مسائل و مشکلات در اجرای این نوع پروژه­ها است. از سوی دیگر، یکی راهکارهایی که در سال­های اخیر در کاهش تأخیر پروژه­های عمرانی مؤثر بوده، راهکار مهندسی ارزش است. لذا هدف از انجام این تحقیق، بررسی علل تأخیر و افزایش هزینه پروژه­های عمرانی درون‌شهری و ارائه راهکار اجرایی مناسب مبتنی بر مهندسی ارزش در مترو کرج است. نمونه آماری این تحقیق شامل 61 نفر از کارفرمایان، مشاوران و پیمانکاران شرکت­های پیمانکاری فعال در زمینه پروژه مترو کرج هست. به‌منظور شناسایی و استخراج مهم‌ترین عوامل ایجادکننده تأخیر در پروژه مترو کرج، از روش مطالعات کتابخانه­ای استفاده گردید. سپس بر مبنای عوامل استخراج‌شده، پرسشنامه­ای مبتنی بر معیارهای مربوط به هریک از این عوامل تنظیم گردید. پس از تأیید پایایی و روایی، پرسشنامه­ها میان افراد نمونه آماری توزیع شدند. پس از جمع­آوری داده­های حاصل از پرسشنامه­ها، برای اولویت­بندی عوامل مؤثر در بروز تأخیرات، از آزمون فریدمن استفاده شد. نتایج نشان داد که مهم‌ترین عوامل مؤثر در بروز تأخیرات در پروژه مترو کرج، عوامل ناشی از عملکرد پیمانکاران با میانگین رتبه­های 31/7 است و  همچنین از بین عوامل مرتبط با مهندسی ارزش بیشترین میانگین رتبه­ها به مؤلفه عملکرد اختصاص یافت که نشان­دهنده این است که این مؤلفه باید در اجرای پروژه­های عمرانی بیشتر از سایر مؤلفه‌های مهندسی ارزش در نظر گرفته شود. 
کلیدواژه‌ها

عنوان مقاله English

Investigating the Causes of Delays and Cost Increases in Urban Development Projects and Providing a Suitable Implementation solution Based on Value Engineering (Case Study: Karaj Subway)

نویسندگان English

Mozaffar Sadeghi 1
Ali Mohammad Ahmadvand 2
1 Corresponding author: M.Sc.,, Department of Civil Engineering, Faculty of Civil and Architectural Engineering , University of Eyvanekey, Eyvanekey, Iran
2 Professor, Department of Industrial Engineering, Faculty of Industrial Engineering, University of Eyvanekey, Eyvanekey, Iran
چکیده English

Delays in construction projects are one of the most common issues and problems in the implementation of these types of projects. On the other hand, one of the solutions that has been effective in reducing the delay of construction projects in recent years is the value engineering solution. Therefore, the purpose of this research is to investigate the causes of delays and increased costs of urban construction projects and to present an appropriate implementation solution based on value engineering in the Karaj Metro. The statistical sample of this research includes 61 employers, consultants, and contractors of contracting companies active in the Karaj Metro project. In order to identify and extract the most important factors causing delays in the Karaj Metro project, the library study method was used. Then, based on the extracted factors, a questionnaire was prepared based on the criteria related to each of these factors. After confirming the reliability and validity, the questionnaires were distributed among the statistical sample. After collecting the data from the questionnaires, the Friedman test was used to prioritize the factors affecting the occurrence of delays. The results showed that the most important factors affecting delays in the Karaj Metro project are factors resulting from the performance of contractors with an average rating of 7.31. Also, among the factors related to value engineering, the highest average rating was assigned to the performance component, which indicates that this component should be considered more than other value engineering components in the implementation of construction projects.

کلیدواژه‌ها English

Causes of delay
Construction projects
Implementation strategy
Value engineering
Karaj Subway

Copyright ©, Mozaffar Sadeghi, Ali Mohammad Ahmadvand

 

License

This article is released under the Creative Commons Attribution (CC BY 4.0) license. Anyone is free to copy, share, translate, and adapt this article for any purpose, whether commercial or non-commercial, as long as proper citation is given to the authors and original publication.

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دوره 2، شماره 4 - شماره پیاپی 5
شماره پیاپی 5، فصلنامه زمستان
زمستان 1401
صفحه 1-22

  • تاریخ دریافت 06 مرداد 1401
  • تاریخ بازنگری 02 بهمن 1401
  • تاریخ پذیرش 10 بهمن 1401
  • تاریخ اولین انتشار 01 اسفند 1401
  • تاریخ انتشار 01 اسفند 1401