Two-dimensional pipe leakage through a line crack in water distribution systems 被引量：1

Two-dimensional pipe leakage through a line crack in water distribution systems

导出

摘要 In water distribution systems,water leakage from cracked water pipes is a major concern for water providers.Generally,the relationship between the leakage rate and the water pressure can be modeled by a power function developed from the orifice equation.This paper presents an approximate solution for the computation of the steady-state leakage rate through a longitudinal line crack of a water distribution pipe considering the surrounding soil properties.The derived solution agrees well with results of numerical simulations.Compared with the traditional models,the new solution allows assessment of all the parameters that related with leakage including the pressure head inside the pipe,hydraulic conductivity,crack size and its position,and pipe size and its depth. In water distribution systems, water leakage from cracked water pipes is a major concern for water providers. Gen- erally, the relationship between the leakage rate and the water pressure can be modeled by a power function developed from the orifice equation. This paper presents an approximate solution for the computation of the steady-state leakage rate through a lon- gitudinal line crack of a water distribution pipe considering the surrounding soil properties. The derived solution agrees well with results of numerical simulations. Compared with the traditional models, the new solution allows assessment of all the parameters that related with leakage including the pressure head inside the pipe, hydraulic conductivity, crack size and its position, and pipe size and its depth.

作者 Shuai GUO Tu-qiao ZHANG Wei-yun SHAO David Z.ZHU Yuan-yu DUAN

机构地区 College of Civil Engineering and Architecture Deptment of Civil and Environmental Engineering

出处《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2013年第5期371-376,共6页 浙江大学学报（英文版）A辑（应用物理与工程）

基金 Project (No. 2012AA062608) supported by the National High-Tech R&D Program (863) of China

关键词 LEAKAGE Pipe crack SOIL Water distribution systems Water pipes Leakage, Pipe crack, Soil. Water distribution systems, Water pipes

分类号 TU991 [建筑科学—市政工程]

引文网络
相关文献

参考文献21

1Araujo, L.S., Ramos, H., Coelho, S.T., 2006. Pressure control for leakage minimisation in water distribution systems management. Water Resources Management, 20(1): 133- 149. [doi: 10.1007/s11269-006-4635-3].
2Arfken, G.B., Weber, H.J., 1995. Mathematical Methods for Physicists. Academic Press, New York.
3Burnell, D., Race, J., 2000. Water Disstribution Systems Analysis: Patterns in Supply-Pipe Leakage. Proceedings ofASCE EWRI Conference, Minneapolis, USA.
4Cassa, A.M., Van Zyl, J.E., Laubscher, R.F., 2010. A numerical investigation into the effect of pressure on holes and cracks in water supply pipes. Urban Water Journal, 7(2): 109-120. [doi: 10.1080/15730620903447613].
5Coetzer, A.J., Van Zyl, J.E., Clayton, C.R.I., 2006. An Ex- perimental Investigation into the Turbulent-Flow Hy- draulics of Small Circular Holes in Plastic Pipes. 8th Annual Water Distribution Systems Analysis Sympo- sium, Cincinnati, Ohio, USA.
6Farley, M., Trow, S., 2003. Losses in Water Distribution Networks. IWA Publishing, London, UK.
7Ferrante, M., 2012. Experimental investigation of the effects of pipe material on the leak head-discharge relationship. Journal of Hydraulic Engineering, 138(8):736-743. [doi: 10. ] 061/(ASCE)HY. 1943-7900.0000578].
8Greyvenstein, B., Van Zyl, J.E., 2007. An cxperimental investigation into the pressure-leakage relationship of some failed water pipes. Journal of Water Supply: Research and Technolog),-A QUA, 56(2):117-124. [doi: 10. 2166/aqua.2007.065].
9Guo, S., Zhang, T., Zhang, Y., Zhu, D.Z., 2013. An approxi- mate solution for two-dimensional groundwater infiltra- tion in sewer systems. Water Science and Technology, 67(2):347-352. [doi:10.2166/wst.2012.568].
10Kingdom, W.D., Limberger, R., Marin, P., 2006. The Challenge of Reducing NRW in Developing Countries. WSS Sector Board Discussion, Paper No. 8, World Bank.