تأثير مساحة الثقوب ونوع الفلتر في كفاءة أنبوب الصرف ومقاومة الدخول في الترب الرملية اللومية

الموضوعات

علوم تطبيقية وتكنولوجية

روابط وملفات

التعريف والنوع

رقم الوثيقة

ee5261a4-3308-4ea9-8382-b2b66d7cc0dc

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

pdf text

أسماء الملفات

1960805_1.pdf

بيانات النشر

ترجمة العنوان

The Effect of perporation size and Filter type on Efficiency of plastic Drain pipes and Entrance Resistances in Lome Sandy soil

ألقاب المؤلفين

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اللغة

Arabic

المصدر والدورية

اسم المصدر

تأثير مساحة الثقوب ونوع الفلتر في كفاءة أنبوب الصرف ومقاومة الدخول في الترب الرملية اللومية

المحتوى والصفحات

عدد الصفحات

0

ترجمة الملخص

The use of filters for drainage pipes is of great importance in achieving good condition for the movement of ground water, by preventing the soil components from moving into the pipe through the holes, so it was necessary to choose the appropriate candidate to achieve good efficiency of the drainage project. The present research aims to study the effect of the diameter of the pipe holes and the type of filter on the flow of the drainage pipe and the entrance resistance, in addition to comparing the measured values of input resistance withe the calculated ones according to wertz model. The research was carried out in the Irrigation Research Laboratory at the Department of Agriculture Engineering at the University of Aleppo. The study was conducted using a box model filled with sandy Lomé soil. In addition to the use of half a drainage pipe with three chains of holes and bizimetric tubes to determine the level of the ground water and follow its changes, Control pipes placed in the placed in the middle of the soil, a device to determine the level of water and a path of movement, and an electric circuit to determine the height of water in the control tubes. In two stages, two types of filters (cotton, hemp) were used in comparison to the witness(without filter), the first stage was for holes of drainage pipes with diameter of 1 mm and the second stage was for holes with diameter of 2 mm. The results of the analysis of variance (ANOVA) at a level of confidence 95% were represented. It was found that for ground water levels (H) there weae very significant differences between the levels. F pr. < 0.001,Also, there were significant differences between the filter F pr. < 0.015, and they were very high in the interaction between filters and ground water levels F pr. < 0.001. However, the Standard errors between the mean of the filter (e.s.e) was 0.7524, and the Least significant differences (l.s.d) was 2.6035 between the filters and 0.8874 between the levels. The coefficients of variance(C.V) was 3% between the filters. Again, for the second stage the results of the analysis of variance (ANOVA) at the same level of confidence, i.e., 95% for the ground water levels (H) showed very significant differences between the levels. F pr. < 0.001, while There were no significant differences between the ground water levels in filters F pr. < 0.001. However, there were found significant differences in the interaction between filters and ground water levels. The standard error between the mean of the filters(e.s.e.) was 0.3980, and the least significant differences (L.S.D.) was 1.3771 between the filters and 0.8450 between the levels. The coefficient of variance(C.V) was 1.9% between the filter.

كلمات الباحثين

Control pipes, Cotton filter, Entrance resistance, Ground water level, Hemp filter, Piezometer, انابيب المراقبه, بيزومتر, مرشح القطن, مرشح القنب, مستوي الماء الأرضي, مقاومة الدخول

إشراف وإعداد

الإشراف

عبد الغني الخالدي, مروان الحاج حسين

الإعداد

حنان جمعة المحيميد

الاقتباسات الببليوغرافية