The slenderness ratio effect on the response of closed-end pipe piles in liquefied and non-liquefied soil layers under coupled static-seismic loading

Duaa Al-Jeznawi; Ismacahyadi Bagus Mohamed Jais; B. S. Albusoda; Norazlan Khalid

doi:10.1515/jmbm-2022-0009

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Publication Date

Sat Jan 01 2022

Journal Name

Journal Of The Mechanical Behavior Of Materials

Volume

31

DOI

10.1515/jmbm-2022-0009

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The slenderness ratio effect on the response of closed-end pipe piles in liquefied and non-liquefied soil layers under coupled static-seismic loading

3D finite element model

liquefaction

modified Mohr-Coulomb model

slenderness

UBCSAND

Duaa Al-Jeznawi

Ismacahyadi Bagus Mohamed Jais

B. S. Albusoda

Norazlan Khalid

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AbstractThis study presents the findings of a 3D finite element modeling on the performance of a single pile under various slenderness ratios (25, 50, 75, 100). These percentages were assigned to cover the most commonly configuration used in such kind of piles. The effect of the soil condition (dry and saturated) on the pile response was also investigated. The pile was modeled as a linear elastic, the surrounded dry soil layers were simulated by adopting a modified Mohr-Coulomb model, and the saturated soil layers were simulated by the modified UBCSAND model. The soil-pile interaction was represented by interface elements with a reduction factor (R) of 0.6 in the loose sand layer and 0.7 in the dense sand layer. The study was compared with the findings of 1g shaking table tests which were performed with a slenderness ratio of 25. In the validation case, there was a clear correlation between the laboratory findings and the numerical analyses. It was observed that the failure mechanism is influenced by the soil condition and the slenderness ratio to some extent. Under the dry soil condition, no base pile deformation was observed; However, tip pile movement was observed under the saturated soil condition with pile slenderness ratios of 25 and 50. The findings of this study are also aimed to include an approximation of the long-term deformations at the ground surface which has experienced shaking.

Publication Date

Thu Nov 08 2018

Journal Name

Iraqi National Journal Of Nursing Specialties

Impact of instructional intervention program upon women's psychological health status who undergo chemotherapy after mastectomy

chemotherapy

breast cancer

psychological health status

mastectomy

chemotherapy program.

nuha

Rabia

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Objective(s): To determine the impact of instructional intervention program upon psychological health status for
women who undergo chemotherapy after mastectomy
Methodology: The sample consisted of (100) women, (50) considered as study group, and another (50) the control
group. A pre test was done for both groups (study and control), and then the study samples were exposed to an
instructional intervention and three-dimensional post tests and the length of time between each test 21 days in
the Institute and Hospital of Radiation and Nuclear Medicine. The questionnaire composed of three parts, first,
demographic information; include (age, educational level, type of family, occupation, marital status, and adequacy
of mo

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Publication Date

Sun Dec 01 2019

Journal Name

Journal Of Ecological Engineering

Biosorption of Heavy Metals from Synthetic Wastewater by Using Macro Algae Collected from Iraqi Marshlands

Safaa

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(18)

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Publication Date

Sat Jun 21 1930

Journal Name

College Of Islamic Sciences

Quelques raisons du total et son impact sur l'interprétation du Coran: Study of explanatory models

أ.م.د.منشد فالح

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The reasons for the totality are varied and multiple, some of which are attributed to the methods of the Arabic language as the participant
Verbal and omnipotent differences in the oud of conscience, which are comprehensive reasons for language in all
And some of these reasons are due to the sciences of the Qur'an, such as cessation and initiation
The explanation of the explanation for the multiplicity of words and differences in them, which necessarily led to a dispute jurisprudence
Linked to the origin of disagreement in the interpretation of the totality and its orientation and understanding and to summarize this subject and diverge
Parts and vocabulary did not receive the necessary care and did not absorb the lesson an

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Publication Date

Wed Sep 24 2014

Journal Name

International Journal Of Environmental Science And Technology

Removal of copper ions from contaminated groundwater using waste foundry sand as permeable reactive barrier

A. A. H.

M. D.

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Publication Date

Thu May 25 2017

Journal Name

Genome Announcements

Complete Genome Sequence of Lytic Bacteriophage VPUSM 8 against O1 El Tor Inaba Vibrio cholerae

Ali

Rafidah Hanim

Phiaw Chong

Manickam

Chan Yean

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ABSTRACT The complete genome sequence of bacteriophage VPUSM 8 against O1 El Tor Inaba <named-content content-type="genus-species">Vibrio cholerae</named-content> is reported here. The isolated VPUSM 8 has potential use in future phage therapy or as a biocontrol agent for the prevention and treatment of cholera.

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Publication Date

Sun Jan 01 2017

Journal Name

Journal Of Cosmetics, Dermatological Sciences And Applications

Topical Therapy of Acute Cutaneous Leishmaniasis Using Zinc Sulphate Solution 25% versus Podophyllin Solution 25%

Khalifa E.

Adil A.

Zinah A. A.

Banaz A.

Wasnaa S.

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(6)

Publication Date

Sun Mar 01 2009

Journal Name

Laser And Particle Beams

Surface morphology modifications of human teeth induced by a picosecond Nd:YAG laser operating at 532nm

Mirdan B.M.

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(11)

Publication Date

Tue Mar 01 2022

Journal Name

Iraqi Journal Of Applied Physics

Fluorescence Characteristics of Coated- Cell Dye Solutions Containing Highly Pure Nanoparticles as Random Gain Media

Laser dye

Random gain media

Rhodamine B

Coumarin 102 Metrics

Murad R.

Mohammed A.

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In this work, enhancement to the fluorescence characteristics of laser dye solutions hosting highly-pure titanium dioxide nanoparticles as random gain media. This was achieved by coating two opposite sides of the cells containing these media with nanostructured thin films of highly-pure titanium dioxide. Two laser dyes; Rhodamine B and Coumarin 102, were used to prepare solutions in hexanol and methanol, respectively, as hosts for the nanoparticles. The nanoparticles and thin films were prepared by dc reactive magnetron sputtering technique. The enhancement was observed by the narrowing of fluorescence linewidth as well as by increasing the fluorescence intensity. These parameters were compared to those of the dye only and the dye solution

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Publication Date

Tue Sep 01 2015

Journal Name

Nano Science And Nano Technology

Preparation CuInSe2 (CIS) by arrested precipitation method as alight absorption layer of photovoltaic solar-cells

CuInSe2

Nanoink

Arrested precipitation

Selenization

Ar- Atmosphere

Wasan

Omar

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The CuInSe2 (CIS) nanocrystals are synthesized by arrested precipitation from molecular precursors are added to a hot solvent with organic cap- ping ligands to control nanocrystal formation and growth. CIS thin films deposited onto glass substrate by spray - coating, then selenized in Ar- atmosphere to form CIS thin films. PVs were made with power conversion efficiencies of 0.631% as -deposited and 0.846% after selenization, for Mo coated, under AM 1.5 illumination. X-ray diffraction (XRD) and energy dispersive spectroscopy (EDS) analysis it is evident that CIS have the chalcopyrite structure as the major phase with a preferred orientation along (112) direction and the atomic ratio of Cu : In : Se in the nanocrystals is nearly 1 : 1 : 2

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Publication Date

Tue Nov 09 2021

Journal Name

Abu Dhabi International Petroleum Exhibition & Conference

Numerical Simulation of Gas Lift Optimization Using Artificial Intelligence for a Middle Eastern Oil Field

evolutionary algorithm

gas lift

artificial intelligence

upstream oil & gas

machine learning

optimization problem

correlation

presented

allocation

reservoir pressure

Mohammed Ahmed

Omar F.

Dhifaf Jaafar

Haider Abdulmuhsin

Mustafa Alaulddin

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AbstractArtificial lift techniques are a highly effective solution to aid the deterioration of the production especially for mature oil fields, gas lift is one of the oldest and most applied artificial lift methods especially for large oil fields, the gas that is required for injection is quite scarce and expensive resource, optimally allocating the injection rate in each well is a high importance task and not easily applicable. Conventional methods faced some major problems in solving this problem in a network with large number of wells, multi-constrains, multi-objectives, and limited amount of gas. This paper focuses on utilizing the Genetic Algorithm (GA) as a gas lift optimization algorit ... Show More

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