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GROUNDWATER WELLS DESIGN

الكلية كلية الهندسة     القسم  الهندسة المدنية     المرحلة 7
أستاذ المادة كاظم نايف كاظم اليساري       10/07/2018 07:46:44
5.1 Objectives
To produce a combination of longevity, performance and cost effectiveness. Proper design reduces
the risk of well failure, and thereby provides greater assurance that the well will satisfy the intended
purposes. The main aims are:
9 To obtain the design yield with minimum drawdown consistent with aquifer capability
and economic optimization of the well;
9 Good quality water with proper protection from contamination;
9 Water that remains solid-free;
9 A well with a long life (more than 25 years);
9 Reasonable capital and operational costs.
The main points in designing a well are:
9 Choice of well location;
9 Selection of appropriate drilling method;
9 Selection of appropriate construction materials, including pump specification;
9 Proper dimensional factors of borehole and well structure;
9 Geological and geophysical logging, water quality sampling and test-pumping can be
carried out in a satisfactory way;
9 The well pumping rate should satisfy the demand for water;
9 The inflow sections of the well should be designed opposite those permeable
geological formations;
9 Well design should be such that pollutants from land surface or other sources can not
enter the well;
9 Materials used in the well should be resistant to corrosion and possess sufficient
strength to prevent collapse
9 Well design should be based on low installation and running costs while not affecting
well performance.

المادة المعروضة اعلاه هي مدخل الى المحاضرة المرفوعة بواسطة استاذ(ة) المادة . وقد تبدو لك غير متكاملة . حيث يضع استاذ المادة في بعض الاحيان فقط الجزء الاول من المحاضرة من اجل الاطلاع على ما ستقوم بتحميله لاحقا . في نظام التعليم الالكتروني نوفر هذه الخدمة لكي نبقيك على اطلاع حول محتوى الملف الذي ستقوم بتحميله .