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Register a new userThe Ideal way to detect of the cavern in basalt regions and determinate on its path using the engineering seismic methods(case study omalroman cave)
الكشف عن المغاور الكبيرة في المناطق البازلتية و تحديد مساراتها باستخدام الطرائق السيزمية الجيوهندسية ( دراسة حالة مغارة أم الرمان )
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يهدف البحث إلى الكشف عن المغاور الكبيرة في المناطق البازلتية و تحديد مساراتها المتوقعة و غير المتوقعة , و كذلك اختيار الأسلوب الأفضل لتنفيذ الأعمال الحقلية السيزمية. بالإضافة لإمكانية التحديد المباشر للمغارة أو الكهف في الحقل من خلال لحظ مؤشرات وجود الكهوف و المغاور على الحقول الموجية السيزمية (التسجيل السيزمي).
Research aims to detect the big caves (cavern)in basalt regions and determinate its predictable and unpredictable path ,and choosing the ideal application seismic land survey. And the possibility for immediate determination of the cavern in field ,by realizing the incoming cavern indications , at seismic field.
References used
Balagen V.V., Bobov A.Y., Dek B.E., 1989-Shallow seismic method. Moscow. Nedra
Boganik G.N., Nomokonov V.P.,1995-Shallow High-resolution seismic reflection method :Application for Karst study in Moscow City .Geology and Prospecting ,No.4
Carvalho J., at el. 2009- Seismic velocities and geotechnical data applied to the soil microzoning of western Algarve, Portugal. Journal of Applied Geophysics.p.1-10
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The results of a seismic profiling application are strongly dependent upon
field parameters, So every area has its own character and difficulty .To
increase the energy of seismic sources and to choose the most suitable source
arrays are important
factors to avoid the difficulty of the area and to help
attenuate ground role. To get good engineering seismic resolution, the
displacement of sources must be perpendicular to the profile line within a
definite distance .
This investigation was carried out during 2011–2012 season at the
biotechnology department\General Commission for Scientific Agricultural
Researches in order to detect the presence of Giardia Cysts on fresh vegetables
and irrigation water using PC
R technique to detect the status of Giardia cysts
in ten different agricultural areas of Damascus Countryside. 120 samples
including, 40 irrigation water and 80 vegetables samples were randomly
collected and tested. Out of 120 samples examined, only 25.8 % were
contaminated with Giardia cysts and these included 37.5% of irrigation water
samples and 20% of fresh vegetables samples. G. lamblia cysts were detected in
12.5% of examined samples, 17.5% of irrigation water samples and 10% of
fresh vegetables samples. The majority of contaminated samples (41.6%),
(25%) for Giardia and G. lamblia, respectively were from Misraba area without
statistically significant with Kafrein area, which showed the lowest
contamination with Giardia cysts (8.33%) and was free of G. lamblia cysts. This
study confirmed the importance of application of molecular biology methods in
the detection of Giardia on vegetables and their Irrigation water, since used
primers showed high specificity and sensitivity in the detection of the Giardia
genus and discriminate the Human pathogenic type, G. lamblia.
This essay displays one of probabilities at Geographical
Information System (GIS) as a decision support system to select
the best way to carry project's remainders (excavations and
garbage of works), in addition to observing topographic
character
istics of the study area and the nature of roads which are
existed formerly and imposed bonds at the movement of machines
as free as possible, As a result, we will obtain the saving
economical way to carry, which is a tied goal equation with
groups of related bonds about the actual of different ways, and
that is accomplished by Geographical Information System.
Therefore, it is possible to consider this system as a help tool to
improve the effective of approval decision to shorting time at
engineering projects.
This paper studies a practical laboratory research of the possibility of utilizing the
natural resources available in the country, namely Basalt, which is available in large
quantities in the southern region (Al-Suwayda) in order to demonstrate the
extent to which
it meets the requirements of standard specifications for use in the manufacture of
(Reinforced) concrete by means of testing the resistance of pressure and tensile by
splitting and the elasticity coefficient of hardened (rigid concrete) at Different ages (3-7-
28) days.
As a result, pressure resistance tests increased by approximately 20 % with the
maturating period progress of concrete mixtures.
The pressure resistance of concrete mixtures prepared using basalt pebbles was
approximately 18% higher than the pressure resistance of concrete formed
usingcalcite(calcareous) pebbles in ages above 7 days
There was also a slight decrease of 8% in the split tensile resistance of the studied
samples prepared with basalt minerals , compared with the samples prepared using calcite
(calcareous) pebble and this resistance increases over time .
As for the elasticity coefficient , a 20% increase in the elasticity coefficient of the
concrete was noticed with the maturating of the concrete mixtures compared to the
referential mixture.
This paper studies a practical laboratory process of the possibility of benefiting from an
important resource of the natural resources available in the country, namely "Basalt"
which is found in large quantities in the southern region (As-Suwayda)
to demonstrate
how much it meets the requirements of Standard Specifications for use in the manufacture
of concrete by testing five design mixtures of concrete , of which the cubic dimensions are
(15% x 15) cm and the cylindrical dimensions are (15 * 30 cm) with different percentages
of the basaltic and dolomitic calcareous compounds used in them as follows: (0% basalt
and 100% lime),( 25% basalt and 75% lime) , (50 % basalt 50 % lime) (75% basalt 25%
lime), (100%basalt and 0% lime) on the strength of pressure and tensile strain by
Splitting and Moduls of Elasticity of ages (28-7-3) days, and its effect on the behavior of
Reinforced Structural Elements susceptible to shear and Bending through testing
Reinforced beams of dimensions (16 × 12 × 200) cm on shear, Bending and cracking
Moduls (Coefficient) with ages of (14-28) days.
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