The efficiency of using ductile iron water pipes in soft soil

نویسندگان

چکیده

At the present stage of reforming housing and public services, toughening requirements for life reliability pipelines municipal support systems, issues developing choosing material type pipes in relation to specific operating conditions urban water supply systems become very relevant. The safety have been main applicable these as most important components health one priorities state social policy [1,2]. Of great importance providing is expert choice pipe material. paper states that many years materials used Russian cities steel cast iron. In recent years, ductile iron widely abroad Russia, particular Moscow system, competing with (among metal ones). presents information on condition cities, characteristics their use soft subsiding soils.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

assessment of the efficiency of s.p.g.c refineries using network dea

data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...

Long-Term Performance of Ductile Iron Pipes

 Evaluate the impact on pipe performance and life expectancy of the transition (1991) from wall thickness class to pressure class designations in the manufacture and design standards for ductile iron pipes.  Study and compare historical failure rates of ductile iron pipes in a geographically diverse group of water utilities from North America and Australia.  Evaluate reliability and capabili...

متن کامل

Fuzzy Expert System to Assess Corrosion of Cast/Ductile Iron Pipes from Backfill Properties

Several factors may contribute to the structural failure of cast and ductile iron water mains, the most important of which is considered to be corrosion. The ANSI/AWWA C105/A21.5–99 10-point scoring (10-P) method is commonly used to predict corrosivity potential of a given soil sample using certain soil properties. The 10-P and other scoring methods use binary logic to classify the soil either ...

متن کامل

Incrustations in Water Pipes as Affected by Filamentous Iron Bacteria

Incrustations and other biological growths in water mains and distribution pipes cause considerable difficulties in water engineering. The control of such obstructions in the pipes, in most cases, largely depends upon the character and composition of the water and the nature of the pipe material. A few years ago some studies were carried out at Bangalore on the tubercular incrustations in water...

متن کامل

the effect of using critical discourse analytical tools on the improvement of the learners level of critical thinking in reading comprehension

?it is of utmost priority for an experienced teacher to train the mind of the students, and enable them to think critically and correctly. the most important question here is that how to develop such a crucial ability? this study examines a new way to the development of critical thinking utilizing critical discourse analytical tools. to attain this goal, two classes of senior english la...

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: E3S web of conferences

سال: 2023

ISSN: ['2555-0403', '2267-1242']

DOI: https://doi.org/10.1051/e3sconf/202341901012