Frequent Breaches in Irrigation Canals in Sindh Pakistan

作     者：Riaz Bhanbhro Nadhir Al-Ansari Sven Knutsson 

作者机构：Department of CivilEnvironmental and Natural Resources EngineeringLulea University of TechnologyLuleaSweden Quaid-e-Awam University of EngineeringScience&TechnologyNawabshahPakistan 

出 版 物：《Journal of Water Resource and Protection》 (水资源与保护（英文）)

年 卷 期：2014年第6卷第4期

页      面：214-223页

学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学] 

基　　金：a part of“Swedish Hydropower Centre—SVC” 

主　　题：Canal Breaches Embankment Failures Long Term Breach Prediction Irrigation System Sindh 

摘      要：Every year, a number of breach failures occur in Irrigation Canals in Sindh. Those failures cause displacement of thousands of people, destruction of properties, land, and damage to costly crops that worth millions Rupees. In addition to that, breach failures also can cause water shortages when the failure occurs during the peak demand period. There are various causes of embankment failures which include overtopping, internal erosion, structural defects and piping. State of art for breach failures is presented in this paper and suggestions for prediction of breaches in context to canals in Sindh are discussed. Seepage and slope stability analyses are recommended for a long-term breach predictions.