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61886

Using Shallow Seismic Method for Evaluation of the Foundation Beds of New Cairo Extension (Andalus Area), Egypt.

Article

Last updated: 22 Jan 2023

Subjects

-

Tags

Basic and applied research of Geology

Abstract

Shallow Seismic Refraction Method (SSR) in engineering investigation is growing interest after the October 1992 earthquake in Egypt. In the present study, eight shallow seismic refraction (SSR) profiles were acquired along the Al-Andalus area, which located at the southeastern part of new Cairo extension, Egypt, in order to identify the shallow subsurface geological features of the near-surface section. Both Primary (VP)-wave and Secondary (VS)-wave velocities that were picking and computed during processing and interpretation. The seismic compressional wave velocity (Vp) distribution indicates that there are three geoseismic layers ranging between (420 and 680 m/s), (1040 and 1680 m/s) and (2170 and 3100 m/s), for first, second and third layers, respectively. The first shear wave velocity (VS) is ranging between (240 – 390 m/s), the second VS layer ranging between (570 - 980 m/s), and the third VS layer is ranging between (1240 - 1800 m /s). The thickness of the first layer varies from 1.8 to 2.6 m and the second layer ranges between 7.6 and 10.5 m. The geoseismic cross sections are interpreted geologically as the first low velocity values which indicate weathered sediments fine sands change to sandy gravels sometimes. However, the second geoseismic layer is represented by consolidated sands with clay intercalations and the third layer reflected sandstones. The geotechnical parameters (elastic modulus, material competence and bearing capacities) are estimated. The distribution of these parameters noticed that the areas can be carried heavy loads at the central, east central and north central parts of the study area.

DOI

10.21608/bfszu.2019.15355.1002

Keywords

Keywords: SSR, VP, VS, Geotechnical parameters

Authors

First Name

Samir

Last Name

Zaid

MiddleName

-

Affiliation

Geology department, Faculty of science, Zigzag university

Email

samir_zaid75@yahoo.com

City

-

Orcid

-

First Name

mohamed

Last Name

shokry

MiddleName

-

Affiliation

Nuclear Materials Authority, Exploration Division, Po. Box 530, Maadi, Cairo, Egypt

Email

shokryam@yahoo.com

City

-

Orcid

-

First Name

ahmed

Last Name

saad

MiddleName

-

Affiliation

Geology Department, Faculty of Science, Al-Azhar University, Cairo, Egypt

Email

dr_saad_en@yahoo.com

City

-

Orcid

-

First Name

ahmed

Last Name

metwally

MiddleName

ragab

Affiliation

Geology department, Faculty of science, Zigzag university, Zigzag, Egypt

Email

engahmedragab1@gmail.com

City

zagazig

Orcid

-

Volume

2019

Article Issue

1

Related Issue

16041

Issue Date

2019-12-01

Receive Date

2019-07-29

Publish Date

2019-11-26

Page Start

31

Page End

47

Print ISSN

1110-1555

Link

https://bfszu.journals.ekb.eg/article_61886.html

Detail API

https://bfszu.journals.ekb.eg/service?article_code=61886

Order

4

Type

Original Article

Type Code

838

Publication Type

Journal

Publication Title

Bulletin of Faculty of Science, Zagazig University

Publication Link

https://bfszu.journals.ekb.eg/

MainTitle

-

Details

Type

Article

Created At

22 Jan 2023