Developing the Performance of Sewage Pipelines Repairing Using Trenchless Methods (Case Study: Isfahan)

Document Type : Research Paper

Authors

1 MSc Student, Department of Civil Engineering, Faculty of Civil Engineering and Transportation, University of Isfahan, Isfahan, Iran

2 Assist. Prof., Department of Civil Engineering, Faculty of Civil Engineering and Transportation, University of Isfahan,Isfahan, Iran

Abstract

Nowadays, the using modern trenchless methods for repairing sewer networks have been developed in most countries. Generally, for repairing the sewage lines using trenchless methods, bypassing the repair zone is necessary. For this purpose, the damaged tube is blocked upstream of the damaged pipe using plugs and packers, and to prevent rejection, the sewage is pumped to the downstream pipes. However, the pumping of sewage is a very costly task. In this study, an effective method named “minimum pumping” (MP) is suggested using the capacity of the upstream pipes and manholes. In the proposed method, the timing needed to repair the damaged tube can be managed in a way that the cost of pumping is reduced. Here, as a case study, sewage pipes in Nazar Boulevard and Mirzakochek Khan Boulevard in Isfahan City in Iran have been repaired using the proposed method and the results are presented and analyzed. The results indicated that the proposed method is an effective method for reducing the cost of repairing in sewage networks. Using the proposed method, the pumping rate and, consequently its costs, were reduced from 35% to 50% for Nazar Boulevard sewer network and from 70% to 85% for Mirzakochek Khan Boulevard.

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References

Abel, T., 2016, "Changes in strength parameters of pipelines rehabilitated with close-fit trolining liners – numerical analysis based on laboratory tests", Archives of Civil and Mechanical Engineering, 16, 30-40.
Allouche, E., Alam, S., Simicevic, J., Sterling, R., Condit, W. & Matthews, J., 2014, "A pilot study for retrospective evaluation of cured-in-place pipe (CIPP) rehabilitation of municipal gravity sewers", Tunnelling and Underground Space Technology, 39, 82-93.
Amiresmaeili, V., 2016, "Rehabilitation in sewer networks" International Conference and Exhibition on Trenchless Technology, University of Isfahan, Isfahan, Iran. (In persian)
Asgari, M., Hashemifesharaki, F. & Zare, M., 2016, "Investigating indirect costs of implementing, rehabilitating and rehabilitating underground installations in conventional open trench (case study of Isfahan)", International Conference on Trenchless, University of Isfahan, 1-9.(In persian)
Berry, M., Bioshop, J., Blackburn, C. & Cole, E., 1994, "Suggested guidelines for remediation of damage from sewage backflow into buildings", Journal of Environmental Health, 52, 1-9.
Hadad, A. & Kadkhodayebolghoor, M., 2009, "Rebuilding urban water network" 1st National Conference on Engineering and Infrastructure Management, Tehran University, Tehran, Iran. (In Persian)
Jefrin, J., Subash, I. & Manoj Kumar, V., 2012, "CIPP: A trenchless rehabilitation overview", International Journal of Advanced Technology in Civil Engineering, 1, (2), 31-36.
Lee, D, G. & Chin, W, S., 2005, "Development of the trenchless rehabilitation process for underground pipes based on RTM", Composite Structures, 68, 267-283.
Lee, D. G., Yu, H., N., Kim, S. S. & Hwang, I. U., 2008, "Application of natural fiber reinforced composites to trenchless rehabilitation of underground pipes", Composite Structures, 86, 285-290.
Masoumi, M., 2016, "Reviewing the pipeline reconstruction standards in order to select and design a modernization method", International Conference on Trenchless, University of Isfahan, Isfahan, Iran. (In Persian)
Matthews, J. C., Allouche, E. N. & Sterling, R. L., 2015, "Social cost impact assessment of pipeline infrastructure projects", Environmental Impact Assessment Review, 50, 196-202.
Molinas, A. & Mommandi, A., 2009, "Developmen of new corrosion/abrasion guidelines for selection of culvert pipe materials", Report No. CDOT-2009-11, Colorado Department of Transportation DTD Applied Research and Innovation Branch, Colorado.
Najafi, M., 2011, "Pipeline rehabilitation systems for service life extension" In: Service life estimation and extension of civil engineering structures, Karbhari, V. M. & Lee, L. S. (Eds.), Woodhead Publishing, Sawstone, Cambridge.
Rogers, C. & Knight, M., 2014, "The evolution of international trenchless technology research coordination and dissemination", Tunnelling and Underground Space Technology, 39, 1-5.
Shirodkar, D., Spero, M. & PE–President-Danby, L., 2010, "Rehab of a 100-Year old brick storm sewer", Underground Construction, 38, 2-10.
Sterling, R., Allouche, E., Alam, S. & Simicevic, J., 2014, "A pilot study for retrospective evaluation of cured-in-place pipe (CIPP) rehabilitation of municipal gravity sewers", Tunnelling and Underground Space Technology, 39, 82-93.
Journal of Water and Wastewater; Ab va Fazilab ( in persian )
Volume 30, Issue 1 - Serial Number 119
March and April 2019
Pages 18-31

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