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Abstract
A geotechnical investigation was carried out aton the soil ofEl-Alamein New City, northern coast. The tests include both in-situ and laboratorial tests. The achieved results reveal that the soil profiledisplaysdifferent layers; these are the topmost fill layer, the sandstone layer, the upper limestone layer, the clayey layer,the middle gypsiferous limestone layer and finally the lower limestone layer. Generally, the fill layer is fine- to medium-grained sand. The sand layerhas relative density very loose, loose to medium(SPT: 1-20 blows/ft).The upper limestone layer is moderately-weak, and has strongunconfined compressive strength (qu:91,326kg/cm2) and very poor quality (R.Q.D: 0-12%). A very poor kaolinite layer has high swelling potential (PI: 16-54%)and high water content (31- 44%).The middle gypsiferous limestone layer (7.5 12m thick) hasa weak unconfined compressive strength (qu: 37-50 kg/cm2) which is poor to very poor quality (R.Q.D: 15-35%).The lower limestone layer has moderately strong unconfined compressive strength (qu: 114 kg/cm2) and very poor quality (R.Q.D: 0-10%).Several kaolinite to illite lenses are encountered within this layer which have very high swelling potential.
Highlights
El-Alamein New City locates in the northern part of the Western Desert and it's bounded by latitudes 30° 43’ 14" and 30° 57’ 26"N and longitudes 28° 44 ́ 22" and 29° 00’ 30"E, covering an area of about 768km2 (Figs. 1&2).The study area is accessible from the international coastal road (Alexandria – Matruh road) from the north-eastern direction, Al-Hammam road from the north, Alexandria road from the east and Petroleum road from the west.The study area belongs to the new urbanization zones which attracted the attention of the decisionmakers due to its strategic location on the coast of the Mediterranean Sea.it is considered one of the most promising areas for both urban and industrial development
The fill layer is encountered in boreholes B4-41 and B4-42, while it's not recorded in boreholes B4-01 and B4-02
The present study aimed at the geotechnical evaluation of El-Alamein new city
Summary
El-Alamein New City locates in the northern part of the Western Desert and it's bounded by latitudes 30° 43’ 14" and 30° 57’ 26"N and longitudes 28° 44 ́ 22" and 29° 00’ 30"E, covering an area of about 768km2 (Figs. 1&2).The study area is accessible from the international coastal road (Alexandria – Matruh road) from the north-eastern direction, Al-Hammam road from the north, Alexandria road from the east and Petroleum road from the west.The study area belongs to the new urbanization zones which attracted the attention of the decisionmakers due to its strategic location on the coast of the Mediterranean Sea.it is considered one of the most promising areas for both urban and industrial development. Based on these SPT values, the sand layer (B) is considered a dense soil and has an angle of shear resistance 36° - 41° (Table 2).
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