Subscribe to the gold package and get unlimited access to Shamra Academy
Register a new userIdentifying hydrodynamic soil parameters of Hweez dam in Lattakia which needed to build mathematical model for Predicting the Water Content Distribution using the Simulation Program PCSiWaPro®
تحديد البارامترات الهيدروديناميكية لتربة سد الحويز باللاذقية اللازمة لإعداد نموذج رياضي بالبرنامج PCSIWAPRO® للتنبؤ بتوزع المحتوى المائي في جسم السد
1498
0 117
0
(
0
)
Created by
Shamra Editor
Ask ChatGPT about the research
نركز في هذا البحث على أهمية إجراء التجارب اللازمة سواء الحقلية أو المخبرية بغية الحصول على قيم واقعية لبارمترات التربة الهيدروديناميكية مما يتيح أفضل نتيجة لمحاكاة الحالة الفعلية لأي منشأة هندسية. تبرز أهمية البحث في السدود و السدات الترابية فهي ذات أهمية كبيرة اقتصادية و بيئية و بشرية, اذ أنه من الضروري توخي الدقة التامة عند إنشاء نموذج رياضي لدراسة استقرارها, و من هنا تنبع ضرورة حساب هذه البارمترات بدلاً من استخراجها من الكودات الهندسية ، حيث سنستخدمها لإجراء محاكاة لتأثير الهطول المطري المديد على توزع المحتوى المائي لتربة سد الحويز, و بالتالي على استقراره، و سنقوم بإنشاء نموذج رياضي للسد قبل التعلية باستخدام البرنامج PCSiWaPro® بالاستناد إلى علاقة الجريان التي تشمل كل من الحالة المشبعة و غير المشبعة, مع الأخذ بالاعتبار أن الناقلية الهيدروليكية و المحتوى الرطوبي هي توابع لضغط الماء المسامي, و هذه العلاقات مع توابعها تعطي انتقالاً إنسيابياً للمياه (غير مضطرب)، حيث تعتبر حالة التربة المشبعة حالة خاصة للمعادلات المستخدمة.
In this paper, we focus on the importance of conducting the necessary tests either field or laboratory in order to obtain realistic values for soil hydrodynamic parameters allowing the best result to simulate the actual situation of any engineering facility. The importance of this research highlights in earth dams and dikes which have great importance to economic, environmental and human. It is necessary to be complete accuracy when creating a mathematical model to study stability of these structures. From here comes the need to calculate these parameters rather than extracted from engineering codes, that we will use them to simulate the effect of long rainfall on the distribution of water content in the Hweez dam soil and hence its stability. We will build a mathematical model for dam using PCSiWaPro® depending on transition flow chart. concerning that, hydraulic conductivity and volumetric water content in the soil are functions of pore water pressure. These equations with their functions give a smooth transition of the studied model where the saturated state is considered as a special case of the used equations.
References used
Al-sinn Project, Final Detailed Design Report.Second Phase.13/95-05-09. Moscow, 1997
(T. SOULIYAVONG, C. GALLAGE, P. EGODAWATTA and B. MAHER: Factors affecting the stability analysis of earth dam slopes subjected to reservoir drawdown. Second International Conference on Geotechnique, Construction Materials and Environment, Kuala Lumpur, Ma- laysia . ISBN: 978-4-9905958-1-4 C3051 (2012
(TIEN H. WU: Root reinforcement of soil: Review of analytical models, test results, and applications to design. NRC Research Press (2013
rate research
Read More
Water erosion is the most serious environmental problem which cause soil
degradation in watershed areas in Syria cost .for this reason, this study aimed to defined
spatial distribution of water erosion risk for land Bhmra Dm basin using corine mode
l.
Corine model depend on calculating all factor that affect water erosion ,soil erosion
vability ,rain erosivity ,slop and land cover.
The aim of this research is to predict the quantities of soil lost by the water erosion in the
Al-Hawiz Dam basin area using GIS and RUSL. R factor was calculated through
matimatical equation after collecting rain data during 2008-2017 from weather
station at
Basel-Al-Assad airport .k value of each soil sampl was calculated after determination of
txture,structure,saturated hydrolic conductivity, and organic matter).a map were prepared
showed local distribution of k values .slop factor was determined as well as using DEM for
studied region, and slop map was introduced in mathematical equation through a GIS to
obtain LS map .NDV used for studied region to calculate C map.To obtain predictive map
of soil lost quantitis ,maps of LS,C,K was multiplicated with R value.
The results showed that R value in studied region 342.78 ,while k factor value was
0.7-0.28.soil with low value concentrated at medium part of studied region,whil slop
factor value was between 0 and 38.87.C factor value was 0.29 at west part and 0.98 at east
part .prediction map of lost quantites was classified in to 4 degrees according erosion risk (
very low risk ,low,medium,high .The results of soil lost quantities were classified in to 4
classes in studied region : very low( 0-5) t/h/year,low( 5-12 ) t/h/year and medium ( 12-24
t/h/year and severe in which soil loss exceeded 24 t/h/year
The stability of the upstream shell of the dams is changed under the rapid drawdown
condition where the pore water pressure has a different values according to the soil
permeability. This paper considers the stability of the upstream shell of the "
Braddon" dam
with many types of soil and analyses each type under two rapid drawdown programs, the
first program is when the discharge happens, according to the irrigation outlet by 25 m3/s,
and the second program is when the discharge happens according to the tunnel conversion
of the river by 500 m3/s. The obtained results show, that the stability of the upper slope
under considered boundary conditions changed according to the soil type. Some soil have
good stability factor while other soil collapsed .Accordingly, we can conclude that the
type of soil of the upper dam slope is important and we could chose the appropriate type
which does not cause dangerous during the rapid drawdown. Also the study shows that:
the highest values of the safety factors result when the slopes are formed of high
permeability soils as well as the slopes of homogeneous soil, while the soils formed of
materials between them appeared decreasing values of safety factors.
In this work, we analyze the performance and properties of cross-lingual word embedding models created by mapping-based alignment methods. We use several measures of corpus and embedding similarity to predict BLI scores of cross-lingual embedding map
pings over three types of corpora, three embedding methods and 55 language pairs. Our experimental results corroborate that instead of mere size, the amount of common content in the training corpora is essential. This phenomenon manifests in that i) despite of the smaller corpus sizes, using only the comparable parts of Wikipedia for training the monolingual embedding spaces to be mapped is often more efficient than relying on all the contents of Wikipedia, ii) the smaller, in return less diversified Spanish Wikipedia works almost always much better as a training corpus for bilingual mappings than the ubiquitously used English Wikipedia.
In this paper, we introduce a continuous mathematical model to
optimize the compromise between the overhead of fault tolerance
mechanism and the faults impacts in the environment of
execution. The fault tolerance mechanism considered in this
rese
arch is a coordinated checkpoint/recovery mechanism and the
study based on stochastic model of different performance critics of
parallel application on parallel and distributed environment.
Log in to be able to interact and post comments
comments
Fetching comments
Sign in to be able to follow your search criteria
