Subscribe to the gold package and get unlimited access to Shamra Academy
Register a new userComparative, analytical study of vertical control networks in some dams
دراسة مقارنة تحليلية لشبكات المراقبة الارتفاعية في بعض السدود
1227
1 45
0
(
0
)
Added by
Tishreen University ورقة بحثية
Publication date
2015
fields
topography
and research's language is
العربية
Created by
Shamra Editor
Ask ChatGPT about the research
يهدف البحث إلى انجاز دراسة تحليلة نظرية و عملية للشبكات الارتفاعية في بعض السدود المتوسطة و الصغيرة في المنطقة الساحلية من الجمهورية العربية السورية، من حيث شكل الشبكة و متانتها و العناصر المقاسة، و الأجهزة التي يجب استخدامها للحصول على الدقة المطلوبة، و كفاءة الموديل الرياضي المستخدم، و تصميم و تنفيذ نقاط التحكم و الرصد في الشبكة المستخدمة و اقتراح الحلول المناسبة. و خلال البحث تم انجاز برنامجين حاسوبيين مستقلين، يتعلق أولهما بنمذجة القياسات في شبكة تسوية محددة العناصر، و البرنامج الثاني يتعلق بإضافة برمجية لبرنامج الرسم الهندسي الشهير ( land development ) ليتمكن المستخدم من تعديل الشبكات الارتفاعية دون الخروج من البرنامج الرسومي. و قد خلص البحث إلى مقترحات محددة بشأن الشبكات الارتفاعية الجيوديزية المدروسة، و إلى إظهار كفاءة كل من البرنامج الحاسوبي المبني ضمن بيئة برنامج الرسم المساحي land development و برنامج نمذجة القياسات الارتفاعية .
The research aims to complete the theoretical, analytical and practical study for elevation networks in some medium and small dams in the coastal region of the Syrian Arab Republic, In terms of the configuration of network, strength of network and measured elements, And instruments that must be used to obtain the required accuracy, and efficient of the mathematical model used, The design and implementation of monitoring and control points in the used network and propose appropriate solutions. During the research was done on two independent programs , The first relates to simulated measurements in the elevation network specific elements, The second for adding program to software is the famous engineering drawing (land development) to enable the user for adjusting elevation networks without going out of the graphical program. The research concluded that specific proposals on elevation geodetic networks studied, and to show the efficiency of all programs designed within Land development software and modeling the elevation measurements.
References used
C.J. Pretorius¹, W.F. Schmidt, S. van Staden, K. Egger THE EXTENSIVE GEODETIC SYSTEM USED FOR THE MONITORING OF A 185 METRE HIGH ARCH DAM IN SOUTHERN AFRICA, 19 – 22 March 2001 Orange, California, USA
Kamil Teke OPTIMIZATION OF GEODETIC NETWORKS WITH SCALAR OBJECTIVE FUNCTIONS
Dr. João CASACA and Dr. Maria João HENRIQUES, PortugalThe Geodetic Surveying Methods in the Monitoring of Large Dams inPortugal, FIG XXII International Congress Washington D.C. USA, April 19-26 2002
rate research
Read More
The big value of dams in the Syrian coast comes from using them for irrigation and sometimes as source of potable water. This study aimed to determine some chemical indicators of water quality in Lattakia dams during ten years (2002-2011). The
conce
ntrations of ions (Cl-1, SO4-2, NO2-1, NO3-1, PO4-3, K+1, Na+1) in five dams (Balloran, 16 Tishreen, Al-thawra, Alsafarkia and Alhweez) were studied. The results indicated that most of the ions showed significant difference in concentrations during 2002-2011.The ions concentrations in most studied dams increased. The increase related to characteristics of dams (location, capacity, the activities located around the dam…).
This research includes analytical study by Finite Element Method about the effect of
earthquakes in the stability of ALBASEL DAM, so we have set a numerical model suitable
by using programs Slope/W, Quake/W. We run the model and we got the results
of the
simulation, which summarized in calculation factors of safety for verification the final
stability of the dam under the effect of different intensity earthquakes. And then were
compared between the two cases static and dynamic model showing the effect of the shear
variables of the soil angle of internal friction and tendency of slops dam and the different
situations of the lake water levels and the high of dam in addition to the effect of the
construction material of the dam on the stability of the body of the dam.
After the study each case depending on the parameters, that are entered, and based
on the resulting factors of safety, the diagrams are painted to appear the positive or the
negative effects to increase or decrease any variable of the dam variables in each of the
static case and the dynamic case. And then we studied the effect of seismic Amplification
resulting from the body of the dam on both the two horizontal and vertical component of
seismic acceleration. The results will help us in a perfect choice for variables of
Embankment dams for design.
The study dealt with "educational contents in the Syrian children
magazines" a comparative analytical study
Between the magazines of Osama and Talayi for the collection of
issues issued between 2014-2016, based on the survey
methodology and using
the content analysis form a key tool in the
study.
The study aimed to identify the most important educational contents
in the Syrian children's magazines, based on the survey methodology
and using the content analysis form as a main tool in the study.
The study dealt with "educational contents in the Syrian children magazines" a
comparative analytical study
Between the magazines of Osama and Talayi for the collection of issues issued
between 2014-2016, based on the survey methodology and using
the content
analysis form a key tool in the study.
The study aimed to identify the most important educational contents in the Syrian
children's magazines, based on the survey methodology and using the content
analysis form as a main tool in the study.
Therefore in this paper we will present the stability analysis carried out on the
Dwesat dam with vertical core, its high is 33m, the downstream slope of 1V:2.75H and the
upstream slope of 1V:3.0H. Thickness of the vertical core was varied from 1V:
0.25H to
1V:2.0H, and also present the effect of the varied thickness on slope stability for both
upstream and downstream under three design conditions i.e. during and end of
construction, steady state seepage and rapid draw down by General Limit Equilibrium
Method using GeoStudio software.
It was observed from the analysis that by varying the thickness of vertical core of
earth dam, thinner core up to 1V:1.30H gives more stability and further increase in
thickness of core tends to sharp decline in factor of safety for both upstream and
downstream slope under different design conditions.
Log in to be able to interact and post comments
comments
Fetching comments
Sign in to be able to follow your search criteria
